Microphones / Compare

Shure KSM40C vs Shure SM58

A

Product A: Shure

KSM40C

36 of 61 known

Change Shure KSM40C

Compare the Shure SM58 with

Search microphones

B

Product B: Shure

SM58

27 of 61 known

Change Shure SM58

Compare the Shure KSM40C with

Search microphones

All 61 fields

Every value links to where we found it.

Only differences

AShure KSM40C

BShure SM58

General

6 of 8 differ

Series

KSM4Press releaseshure.com/en-US/newsroom/shure-unveils-ksm-studio-microphonesRead 14 October 2026The release calls the KSM32C, KSM40C and KSM44MP the new KSM condenser microphone line.

SM1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Shure lists the SM58 in its SM series (page data: product series SM).

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

KSM40C1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026SKU KSM40C.

SM58-LC, SM58-CN1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026The page sells SM58-LC (microphone with stand adapter and pouch) and SM58-CN (with a 25 ft XLR cable). The SM58S with an on/off switch is a separate model with a different control and is not stored. Other SKUs in the page data are regional or colour versions and are not stored.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Available Models table: SM58-LC, SM58-CN and SM58S.

GTIN / EAN

0424068629981Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026UPC 042406862998 in the page data of the US store.

042406051293, 0424060513091Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026UPC in the page data: 042406051293 for SM58-LC and 042406051309 for SM58-CN.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

21 January 20264Press releaseshure.com/en-US/newsroom/shure-unveils-ksm-studio-microphonesRead 14 October 2026Release dated January 21, 2026, from NAMM 2026 in Anaheim.6Press articlegearnews.comRead 14 October 2026Gearnews reports the NAMM 2026 launch of the three KSM mics.

Not available

Status

Available1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026The US store page has Add to Cart and a New tag. The page data says availability: available.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026Review of June 2026 with a UK price of 849 GBP and a US price of 879 USD.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026In stock and can be shipped immediately.

Available1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data life cycle status: available.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$8791Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026US store price 879 USD, the same figure as the NAMM press release.4Press releaseshure.com/en-US/newsroom/shure-unveils-ksm-studio-microphonesRead 14 October 2026KSM40C Large Diaphragm Cardioid Condenser Microphone (879 USD). The release gives no euro price.

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€9696Press articlegearnews.comRead 14 October 2026Gearnews, 2026-01-22: MSRP pricing KSM40C 969 EUR. Shure's EU store shows the same 969 EUR. VAT treatment is not stated. The UK price is 849 GBP including VAT.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026The new bodies are a black cylindrical body.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Colour: Black.

Grey1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026The Colors selector of the page shows Grey. The spec sheet calls the case dark gray.

Microphone typeiElectret condensers count as condenser.

Condenser1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data: transducer type condenser. The guide says condenser (externally biased).2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Specifications, type: condenser (externally biased).

Dynamic1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data transducer type: dynamic.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 20263Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026SM58 Specifications: type dynamic (moving coil).

Capsule and pickup

2 of 4 differ

Capsule sizeiDiaphragm diameter of one capsule as published. A 1-inch capsule is 25.4 mm.

25.4mm1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page text: precision engineered 1 inch capsule. Stored as 25.4 mm.

Not available

CapsulesiNumber of capsules. Multi-pattern USB microphones often use three.

11Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026The user guide calls it a premium 1 inch single-diaphragm cardioid capsule.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026What is the KSM40C: a side-address condenser microphone with a premium 1 inch single-diaphragm cardioid capsule. No capsule count is printed, so one is the reading of single-diaphragm.

11Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026The page names one fixed cartridge (page data: cartridge fixed, replacement cartridge R59). It prints no capsule count, so one is the reading of a single cartridge.3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026The guide lists a replacement cartridge R59 and prints no capsule count. One is the reading of a single moving-coil cartridge.

Polar patternsiEvery pattern the user can select. Unidirectional is used only when the maker names no exact pattern.

Cardioid1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page: uniform cardioid polar pattern.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026

Cardioid1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Cardioid (unidirectional) dynamic.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 20263Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026

Address typeiEnd address means you speak into the top of the microphone. Side address means you speak into its side.

Side address1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data form factor: side-address large diaphragm. The user guide says the logo marks the front.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026The KSM40C is a side-address condenser microphone. The Shure logo marks the front.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026The KSM40C is a side-address mic with a very similar look to the KSM32.

End address1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data form factor: handheld. A handheld cardioid vocal microphone is sung into at the grille on its top. The user guide placement table puts the lips on axis, touching the windscreen.3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Placement table: lips less than 15 cm away or touching the windscreen, on axis to the microphone.

Sound specs

8 of 10 differ

Frequency responseiPublished acoustic range of the microphone. A sample rate does not establish it.

Min20 HzMax20 kHz2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Specifications: 20 to 20,000 Hz. The frequency response plot is taken 0.6 m (2 ft) from the sound source.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Frequency range 20 to 20,000 Hz.

Min50 HzMax15 kHz1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Frequency response: 50 to 15,000 Hz.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026

Sensitivity (analog)iAnalog output level for 94 dB SPL at 1 kHz, as published in dBV. For a microphone with a switchable preamp, the bypass value is used. A value published only in mV/Pa is converted as 20 x log10(mV/Pa / 1000) and rounded to one decimal, so 1.6 mV/Pa is -55.9 dBV/Pa. The printed value goes in the source note. A sensitivity in plain dB with no reference, as many low-cost USB microphones print it, is left out.

-33.5dBV/Pa2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Open circuit voltage at 1 kHz, typical: -33.5 dBV/Pa (21 mV), 1 Pa = 94 dB SPL.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Sensitivity -33.5 dBV/Pa.

-54.5dBV/Pa1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data combined specs: -54.50 dBV/Pa. The page data pairs it with 1.60 mV/Pa, which does not match -54.5 dBV, and the spec sheet prints 1.85 mV. The user guide prints -56.0 dBV/Pa (1.6 mV) instead. The spec sheet value is stored. See the spec sheet note.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Spec table: -54.5 dBV/Pa (1.85 mV) at 1,000 Hz, open circuit voltage, 1 Pa = 94 dB SPL. The Shure SM series sheet on pubs.shure.com is dated 2014 in its file data, and the current Shure product page prints the same -54.5 dBV/Pa. The newer user guide (version 6.4, 2024-F) prints -56.0 dBV/Pa. The two Shure documents conflict. The value that the sheet and the product page share is stored.

Sensitivity (digital)iDigital output level over USB for 94 dB SPL at 1 kHz. The minimum gain value is used when several are given. The gain setting goes in the source note. On a USB-only microphone use this field only when the maker prints dBFS or ties a dBV value to the USB output, as Shure does for the MV7i. A dBV, dB re 1 V/Pa or mV/Pa value that names no USB output is left out. The printed unit and the gain go in the source note. A value printed for another reference level is converted by the level difference, so -40 dBFS at 80 dB SPL is -26 dBFS at 94 dB SPL. The printed value goes in the source note.

Not available

Not available

Max SPLiHighest sound pressure level at the source's distortion limit. The THD level and output path go in the source note. The value without a clipping protection mode such as Clipguard is used when both are given. The value with the pad off is used. When the maker lists several preamp loads, the highest load is used. The load goes in the source note. On a USB microphone that prints values per gain setting, the minimum gain value is used, as for sensitivity.

138dB SPL2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Maximum SPL at 1 kHz, 1 percent THD, no pad: 134 dB SPL with a 1000 ohm load and 138 dB SPL with a 2500 or 5000 ohm load. With the 15 dB pad 149 and 153 dB SPL. The 138 dB figure at 2500 ohm without the pad is stored. The guide says the preamp load should be at least 1000 ohm.

Not available

Max SPL distortion limitiThe distortion level at which the maker states the max SPL, e.g. 1, 3 or 10 % THD. Left out when the maker names none. Max SPL figures compare only at the same limit.

1%2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026The maximum SPL table is stated at 1 kHz and 1 percent THD.

Not available

Self-noiseiEquivalent noise level, A-weighted, in dB SPL. Lower is quieter. The analog value is used when analog and digital values are both given. A value in dBV or dBFS is left out. On a USB microphone that prints values per gain setting, the minimum gain value is used, as for max SPL.

7.5dB(A)1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data: equivalent self-noise 7.5 dBA.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Equivalent SPL, A-weighted, typical: 7.5 dBA.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026The review prints self-noise of 7.5 dBA for the KSM40C.

Not available

Digital noise flooriDigital noise floor of a USB microphone as printed, usually A-weighted over 20 Hz to 20 kHz. Lower is quieter. Processing that was on during the test goes in the source note. It is not self-noise.

Not available

Not available

Signal-to-noise ratioiAs published. Reference level and weighting go in the source note. The microphone's own figure, not the SNR of a built-in headphone amplifier.

86.5dB2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Signal-to-noise ratio 86.5 dB. The guide gives no reference level. It equals 94 dB SPL minus the 7.5 dBA self-noise.

Not available

Dynamic rangeiAs published. The distortion level goes in the source note. The value without a clipping protection mode is used when both are given. Use the same pad setting, preamp load and gain as for max SPL.

130dB2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026At 1 kHz: 127 dB with a 1000 ohm load and 130 dB with a 2500 or 5000 ohm load. The 2500 ohm figure is stored, to match max SPL. No pad.

Not available

Output impedanceiRated impedance of the XLR output. For a microphone with a switchable preamp, the bypass value is used. A USB-only microphone has no value here, even when the maker prints an impedance for the capsule. When the maker prints a rated and an actual impedance, as Shure does for the SM58, the rated value is stored and the actual one goes in the source note.

70Ω2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Output impedance 70 ohm +/- 5.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Output impedance 70 ohm.

150Ω1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Further specs: rated impedance is 150 ohm (300 ohm actual). The rated value is stored as the output impedance.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Impedance: rated impedance is 150 ohm (300 ohm actual) for connection to microphone inputs rated low impedance. The user guide prints Output Impedance 300 ohm.6Reviewsoundguys.com/shure-sm58-review-25950Read 15 October 2026Review spec table: 150 ohm.

Connectivity

1 of 7 differ

OutputsiOutputs that carry the microphone signal to a computer, interface or mixer. A headphone jack does not count. Wireless is a radio link to a receiver, such as 2.4 GHz.

XLR1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data connector: 3-pin XLR.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Connector: three-pin professional audio (XLR), male, balanced.

XLR1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data connectors: 3 pin XLR. The page has no USB output.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Connector: three-pin professional audio connector (male XLR type).3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Connector: three-pin professional audio (XLR), male. The guide prints sensitivity -56.0 dBV/Pa (1.6 mV), weight 0.33 kg and output impedance 300 ohm. They differ from the spec sheet and the product page, so they are not stored.

Inputs for other sourcesiInputs on the microphone for another microphone or instrument, which it sends to the computer with its own signal.

Not available

Not available

USB and XLR at onceiBoth outputs carry audio at the same time.

Not available

Not available

USB portiUSB socket on the microphone. USB-B is the full-size square socket. A Micro-B socket is Micro-USB, even when the maker writes USB-B.

Not available

Not available

Cable host plugiPlug on the computer end of the included USB cable. An included adapter is listed in In the box.

Not available

Not available

Cable lengthiLength of the included USB cable.

Not available

Not available

Phantom poweriPhantom power for the XLR output. Optional means some XLR modes work without it, for example a built-in preamp in bypass. Supplies means the microphone gives 48 V phantom power to a microphone on its XLR input.

Required1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data: requires phantom power 48 V.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026For best performance the microphone needs +48 V DC phantom power. It works down to 12 VDC but does not meet all specifications. Power requirements: 48 V DC phantom power (5.6 mA).

Not required5Maker product pageshure.com/en-US/insights/what-is-phantom-power-why-do-i-need-itRead 15 October 2026Shure: a dynamic microphone like the SM58 does not require phantom power because it has no active electronics inside.6Reviewsoundguys.com/shure-sm58-review-25950Read 15 October 2026Review spec table: phantom power not required. Accidentally switching it on does not damage the microphone.

Digital audio

None of 3 known

Max bit depthiHighest recording bit depth over USB.

Not available

Not available

Max sample rateiHighest recording sample rate over USB. This is not the frequency response.

Not available

Not available

32-bit float recordingiRecords over USB in 32-bit floating point. A 32-bit integer format does not count.

Not available

Not available

Monitoring

0 of 2 differ

Headphone outputiA headphone jack on the microphone.

No1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data: headphone output false.

No1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data lists headphone output: false.

Zero-latency monitoringiThe headphone output plays the microphone signal directly, before it reaches the computer.

Not available

Not available

Controls and processing

1 of 2 differ

Onboard controlsiFunctions you can change on the microphone itself, by knob, button, switch or touch. Settings that exist only in the app do not count. A switch that sets preamp gain steps, such as +18 or +28 dB, counts as gain. Echo is a knob or button for an echo or reverb effect.

Not available

Not available

Onboard processingiProcessing inside the microphone, analog or digital, that works without the maker's app running. A maker statement that settings are saved in the microphone counts. Effects that run only in the app on the computer do not count. An expander counts as noise gate. Clip protection such as Clipguard is clip protection. Limiter is only for a limiter the maker lists as its own effect, never both for one feature. Brand names such as APHEX or Clipguard go in the source note. Attenuation pad is a switch that lowers the capsule output, such as -15 dB. Echo is an echo or reverb effect in the microphone. Exciter or bass enhancer covers effects that add harmonics or bass, such as APHEX Aural Exciter and Big Bottom.

High-pass filter, Attenuation pad2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Three-position low frequency filter switch: flat, 6 dB per octave below 115 Hz or 18 dB per octave below 80 Hz. The 0 or -15 dB attenuation switch is stored as pad.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026The KSM40C keeps the 15 dB pad and the high-pass filter options of earlier models. The review calls the two high-pass settings useful.10Reviewbonedo.deRead 14 October 2026The pad and the low cut at 80 Hz with 18 dB per octave or 115 Hz with 6 dB per octave are on the KSM40C.

Not available

Mounting and accessories

3 of 4 differ

Mount threadsiStand threads the microphone or its included mount accepts, also with an included adapter.

5/8 inch, 3/8 inch2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Furnished accessories: the AKSM40/44-SM shock mount and a 31B1856 brass adapter. The thread sizes come from the retailer listing of the shock mount.9Retailer pagegoknight.com/shure-aksm40-44-sm-shockmount-for-ksm40c-and-ksm44mpRead 14 October 2026Retailer spec of the AKSM40/44-SM shock mount, which ships with the KSM40C: mounting thread size 5/8 in-27 female, 3/8 in-16 female with the included adapter.

5/8 inch7Retailer pageavlgear.com/products/shure-a25d-break-resistant-stand-adapterRead 15 October 2026Retailer spec for the A25D stand adapter, which Shure ships with the SM58: standard 5/8 in-27 thread mount. Shure's own A25D page lists a GM3858 thread adapter in its box but does not state the thread sizes, so only the 5/8 in thread is stored.

Shock mountiInternal is suspension inside the body. Included is a separate shock mount in the box. A cradle or ring mount that comes fitted to the microphone or its stand is included, even when the maker calls it built-in. A microphone with internal suspension and a separate shock mount in the box is included.

Included1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Box list: 1 Shock Mount and 1 set of 8 replacement bands.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Furnished accessories: AKSM40/44-SM shock mount for KSM40C and KSM44MP and AKSMEB elastic bands. Version 0.2 (2026-A) of the guide.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026A shock mount ships with the KSM40C.10Reviewbonedo.deRead 14 October 2026Shipped with a spider shock mount.

Internal1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Pneumatic shock-mount system cuts down handling noise. It sits inside the body.3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration.

Pop filteriPop protection built in or in the box.

External screen1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Box list: 1 Magnetic Pop Filter. Shure calls it a curved magnetic pop filter in the launch release.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Furnished accessories: A4PF magnetic pop filter.4Press releaseshure.com/en-US/newsroom/shure-unveils-ksm-studio-microphonesRead 14 October 2026Curved magnetic pop filters ship with the line.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026A pop shield fixes magnetically to the upper ring of the shock mount.10Reviewbonedo.deRead 14 October 2026Bonedo, 2026-08-20: the KSM40C ships with a shock mount and a magnetic pop filter made of metal.

Internal1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Effective, built-in spherical wind and pop filter.3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Effective built in pop-filter reduces undesirable wind and breathe noise.

Desk stand includediA desk stand or base in the box. A yoke alone does not count. A boom arm does not count either. In the box names it.

No1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026The box list names no stand or base. A shock mount, a pop filter, a case, bands and a threaded adapter are listed.

No1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026The In the Box list has the stand adapter and the storage bag and no stand. The full list counts as saying so.

Design and build

1 of 3 differ

Housing material

Machined, anodized aluminum alloy1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Page data lists a metal housing. The user guide says machined, anodized aluminum alloy.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Housing: machined, anodized aluminum alloy.4Press releaseshure.com/en-US/newsroom/shure-unveils-ksm-studio-microphonesRead 14 October 2026Lightweight, all-metal construction.7Reviewsoundonsound.com/reviews/shure-ksm40c-ksm44mp-ksm32cRead 14 October 2026The headbasket is formed from a single piece of metal. The reviewer says the body is a black cylinder.10Reviewbonedo.deRead 14 October 2026Two-part metal tube, aluminum lower part and a steel basket.

Enamel-painted die cast metal with spherical steel mesh grille1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Further specs: dark gray, enamel-painted, die cast metal with a matte silver colored spherical steel mesh grille.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 20263Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Housing: enamel-painted die cast metal with spherical steel mesh grille.

RGB lightingiDecorative lighting. Status and mute lights alone do not count. RGB lighting is lighting with no function. A level meter or mute indicator is not RGB lighting, even when its colour can be chosen. Lighting that changes colour on its own counts, even when it also turns off on mute.

Not available

Not available

Lighting zonesiIndependently controllable lighting areas.

Not available

Not available

Software

None of 2 known

SoftwareiThe maker's app for the microphone.

Not available

Not available

User firmware updatesiA public updater or a documented firmware update procedure exists for this exact model.

Not available

Not available

Compatibility

None of 2 known

Works withiOperating systems the maker lists for USB audio. App support can be narrower.

Not available

Not available

ConsolesiConsoles the maker lists for USB audio.

Not available

Not available

Dimensions and weight

2 of 3 differ

Microphone dimensionsiMicrophone body without a stand or a detachable shock mount. A fixed yoke is included. Width is left to right as seen by the speaker, height is bottom to top in normal use and depth is front to back. Orient the microphone as in use on its yoke or stand. Depth is the direction it points at the speaker, height is up and width is across. An upright side-address microphone has its length as height. An end-address microphone has its length as depth, also when it is held in the hand. A round microphone with only a length and a diameter uses the diameter for the other two sides. The source note states the mapping.

Width47.6Height171.1Depth47.6mm(1.9 × 6.7 × 1.9 in)2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Dimensions drawing, page 6: 171.1 mm (6.74 in) long including the XLR base and 47.6 mm (1.87 in) in diameter. The microphone is spoken into from its side, so the length is the height and the diameter is used for width and depth.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Dimensions (D x H): 48 x 171 mm, which matches the maker's 47.6 x 171.1 mm.10Reviewbonedo.deRead 14 October 2026The KSM44MP and KSM40C are both 17.1 cm long.

Width51Height51Depth162mm(2 × 2 × 6.4 in)1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data: width 51.0 mm, height 162.0 mm, depth 51.0 mm. The spec sheet gives 162 mm length and 51 mm width. The microphone is round and end-address, so the 162 mm length is the depth toward the speaker and the 51 mm diameter is both width and height, as for the other end-address microphones. The page data maps the length to height.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Dimensions: 162 mm L x 51 mm W. Mapped as in the product page note.6Reviewsoundguys.com/shure-sm58-review-25950Read 15 October 2026Review spec table: 162 x 51 mm.

Microphone weightiWithout stand, detachable shock mount and cable. A fixed yoke is included.

285g(10.1 oz)1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026The page data lists weight 285 g.2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026Weight 285 g (10.1 oz), the microphone without the shock mount.8Retailer pagethomann.de/be/shure_ksm40c.htmRead 14 October 2026Weight: 0.285 kg.

298g(10.5 oz)1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page data weight: 298 g. The spec sheet says net 298 g. The user guide prints 0.33 kg, see the user guide note.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Weight: net 298 g.6Reviewsoundguys.com/shure-sm58-review-25950Read 15 October 2026Review spec table: 298 g.

Weight with standiWith the included stand or mount attached, without the cable. An included shock mount between the microphone and the stand counts.

Not available

Not available

Certifications

1 of 1 differ

Other certifications

CE, UKCA2Owner's manualpubs.shure.com/view/guide/KSM40C/en-US.pdfRead 14 October 2026The guide has a CE notice and a UKCA notice for the CE and UKCA marks.

CE3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Certifications: meets the Essential Requirements of all relevant European directives and is eligible for CE marking.

In the box

1 of 1 differ

In the box

KSM40C Large Diaphragm Condenser Microphone, Shock Mount, Magnetic Pop Filter, Premium Zippered Carrying Case, Set Replacement Shock Mount Bands (8), Threaded Adapter1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026Box list as printed, each with quantity 1. The set of bands holds 8. The guide's furnished accessories also name an A4M swivel hard mount, which the box list on the page and in the press release leaves out. The page list is followed.

SM58 microphone, A25D Swivel Stand Adapter, 95A2313 Storage Bag, C25J 25' XLR-cable1Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026Page In the Box: 1 A25D Swivel Stand Adapter and 1 95A2313 Storage Bag. SM58-CN page data adds 1 C25J 25 ft XLR cable. The microphone itself is added to each list.2Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026Available Models: SM58-LC includes stand adapter and zippered pouch. SM58-CN includes a 7.6 m XLR-male to XLR-female cable, swivel adapter and a zippered pouch.

Links

Not compared

Product page

www.shure.com/en-US/products/microphones/ksm40c1Maker product pageshure.com/en-US/products/microphones/ksm40cRead 14 October 2026

www.shure.com/en-US/products/microphones/sm581Maker product pageshure.com/en-US/products/microphones/sm58Read 15 October 2026

Spec sheet

Not available

pubs.shure.com/file/2600072Maker spec sheet (PDF)pubs.shure.com/file/260007Read 15 October 2026

Manual

www.shure.com/en-US/docs/guide/KSM40C3Owner's manualshure.com/en-US/docs/guide/KSM40CRead 14 October 2026Shure online user guide for the KSM40C. The page builds its text with scripts, so the specs were read from the PDF edition.

pubs.shure.com/guide/SM58/en-US3Owner's manualpubs.shure.com/guide/SM58/en-USRead 15 October 2026Shure online user guide for the SM58, version 6.4 (2024-F). The PDF edition at pubs.shure.com/view/guide/SM58/en-US.pdf was read for the specs.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

None of 1 known

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

Not available

Both are also in the API. Back to all microphones.