{"data":{"slug":"polk-signa-s4","type":"soundbar","brand":"Polk Audio","name":"Signa S4","aliases":["Polk Signa S4","Polk Audio Signa S4","Signa S4 Dolby Atmos 3.1.2 Sound Bar with Wireless Subwoofer","PKSIGNAS4"],"release_date":"2021-12","url":"https://arkivo.dev/soundbars/polk-signa-s4","specs":{"series":"Signa","model_numbers":["300443-01-00-101"],"gtins":["747192135829"],"announce_date":null,"status":"available","predecessor":null,"successor":null,"launch_price_usd":399,"launch_price_eur":349,"markets":["US","EU"],"colors":["Black"],"manufacturer_url":"https://www.polkaudio.com/en-us/product/sound-bars/signa-s4/300443.html","spec_sheet_url":"https://www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdf","manual_url":"https://www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdf","eprel_registration_number":null,"warranty_years":null,"system_channel_configuration":"3.1.2","speaker_count_total":8,"soundbar_driver_count":7,"up_firing_driver_count":2,"drivers":[{"component":"Soundbar","type":"Tweeter (left and right)","count":2,"diameter_mm":25,"orientation":"Front-firing"},{"component":"Soundbar","type":"Racetrack midrange (left and right), 120 × 40 mm","count":2,"diameter_mm":null,"orientation":"Front-firing"},{"component":"Soundbar","type":"Full-range center","count":1,"diameter_mm":25,"orientation":null},{"component":"Soundbar","type":"Elevation (left and right)","count":2,"diameter_mm":66,"orientation":"Up-firing"},{"component":"Subwoofer","type":"Woofer","count":1,"diameter_mm":150,"orientation":"Down-firing"}],"subwoofer_included":true,"subwoofer_connection":"wireless","subwoofer_driver_diameter_mm":150,"rear_speakers_included_count":0,"rear_speaker_connection":null,"detachable_rear_speakers":null,"compatible_subwoofers":null,"compatible_rear_speakers":null,"total_output_power_w":null,"peak_output_power_w":null,"frequency_response_min_hz":null,"frequency_response_max_hz":null,"dolby_atmos":true,"dts_x":false,"audio_formats":["Linear PCM","Dolby Digital","Dolby Digital Plus","Dolby TrueHD","Dolby Atmos"],"audio_format_connections":[{"connection":"hdmi_earc","format":"Dolby Atmos","max_channels":null}],"music_file_formats":null,"max_audio_sample_rate_khz":48,"max_music_file_sample_rate_khz":null,"max_audio_bit_depth_bits":null,"max_music_file_bit_depth_bits":null,"ports":[{"type":"hdmi","count":1,"version":"2.1","role":"TV connection with eARC or ARC"},{"type":"optical","count":1,"version":null,"role":"Digital audio input"},{"type":"audio_3_5mm","count":1,"version":null,"role":"Analog AUX audio input"},{"type":"usb_a","count":1,"version":null,"role":"Firmware updates"},{"type":"ac","count":1,"version":null,"role":"Soundbar power input"}],"hdmi_arc":true,"hdmi_earc":true,"hdmi_cec":true,"video_passthrough":false,"video_passthrough_modes":null,"hdr_passthrough_formats":null,"vrr_passthrough":null,"allm_passthrough":null,"hdcp_version":null,"bluetooth":true,"bluetooth_version":"5.0","bluetooth_codecs":["SBC"],"wifi":null,"wifi_standard":null,"wifi_bands":null,"ethernet_speed_mbps":null,"streaming_protocols":null,"voice_assistants":null,"built_in_microphone":null,"microphone_mute_switch":null,"companion_apps":null,"companion_app_platforms":null,"multiroom_audio":null,"remote_included":true,"sound_modes":["Movie","Music","Night"],"automatic_room_calibration":null,"room_calibration_system":null,"dialogue_enhancement":true,"night_mode":true,"equalizer_controls":["Bass Adjust"],"tv_speaker_integration":null,"power_consumption_operating_w":40,"power_consumption_standby_w":1.5,"power_consumption_network_standby_w":null,"power_supply":"Sound bar: AC 100 to 240 V, 50/60 Hz. The wireless subwoofer has its own power cord, AC 100 to 240 V, 50/60 Hz.","rear_speaker_battery_life_h":null,"rear_speaker_charge_time_h":null,"measured_low_frequency_extension_hz":null,"measured_high_frequency_extension_hz":null,"measured_max_spl_db":null,"measured_frequency_response_deviation_db":null,"measured_latency":null,"measured_power_consumption_operating_w":null,"measured_power_consumption_standby_w":null,"measured_weight_g":null,"dimensions_mm":{"width_mm":1046,"height_mm":60,"depth_mm":95},"weight_g":2900,"component_dimensions":[{"component":"Subwoofer","width_mm":200,"height_mm":280,"depth_mm":328,"weight_g":4100}],"package_dimensions_mm":{"width_mm":1117.6,"height_mm":263.7,"depth_mm":441.5},"package_weight_g":9584,"wall_mountable":true,"in_the_box":["Sound bar","Subwoofer","Remote control","Sound bar power cord","Subwoofer power cord","HDMI cable","Optical cable","2 AAA batteries","Quick start guide","Registration card","Safety card","Wall mount template","Wall mount spacers"],"wall_mount_included":null,"hdmi_cable_included":true,"optical_cable_included":true},"variants":[],"sources":[{"url":"https://www.polkaudio.com/en-us/product/sound-bars/signa-s4/300443.html","kind":"manufacturer_page","accessed":"2026-10-13","fields":["series","model_numbers","markets","colors","status","manufacturer_url","in_the_box","hdmi_cable_included","optical_cable_included","remote_included","wall_mountable"],"notes":{"model_numbers":"US page SKU 300443-01-00-101.","status":"US maker page offers the black model for purchase. The current page price is $449, which is not the launch price.","in_the_box":"Specifications tab What's in the Box. The infosheet lists one power cord. The page lists sound bar and subwoofer power cords.","wall_mountable":"Page copy describes a low-profile, wall-mountable design. Wall mount template and spacers are supplied. Screws are not listed.","markets":"US page lists the US SKU and US pricing. The EU market comes from the German launch report."}},{"url":"https://www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdf","kind":"manufacturer_pdf","accessed":"2026-10-13","fields":["spec_sheet_url","system_channel_configuration","speaker_count_total","soundbar_driver_count","up_firing_driver_count","drivers","subwoofer_included","subwoofer_connection","rear_speakers_included_count","subwoofer_driver_diameter_mm","dolby_atmos","audio_format_connections","ports","hdmi_earc","bluetooth","sound_modes","dialogue_enhancement","night_mode","equalizer_controls","dimensions_mm","component_dimensions"],"notes":{"system_channel_configuration":"Infosheet: Dolby Atmos 3.1.2 sound bar with wireless subwoofer.","drivers":"Infosheet lists two 1 in tweeters, two 4.7 x 1.6 in racetrack mids, one 1 in full-range center and two 2.6 in elevation drivers in the bar, and one 5.9 in woofer in the subwoofer. Metric sizes as published. Elevation and subwoofer firing directions come from the Trusted Reviews review.","subwoofer_driver_diameter_mm":"Infosheet: woofer 5.9 in / 15 cm. Some retailer copy says 5.25 in. The maker figure is stored.","audio_format_connections":"Maker states Dolby Atmos needs the HDMI eARC connection between sound bar and TV. No other connection-specific format limits are published.","ports":"Infosheet inputs: one HDMI eARC output, one optical input, one 3.5 mm analog input, Bluetooth and one USB-A for firmware updates. The manual also describes a hidden USB music input. HDMI 2.1 comes from the launch announcement text on Home Theater Forum and the Greentoe retailer table, not from the maker documents.","dimensions_mm":"Infosheet gives sound bar W x D x H as 1046 x 95 x 60 mm.","component_dimensions":"Infosheet gives subwoofer W x D x H as 200 x 328 x 280 mm. Weight comes from the manual.","speaker_count_total":"Seven drivers in the bar plus one woofer in the subwoofer, from the infosheet driver list. The Denon page copy says eleven drivers. That copy does not match the maker driver list and is not used.","rear_speakers_included_count":"What is in the Box lists a sound bar and a subwoofer only. The Trusted Reviews review says rear speakers cannot be added."}},{"url":"https://www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdf","kind":"manual","accessed":"2026-10-13","fields":["manual_url","audio_formats","max_audio_sample_rate_khz","hdmi_arc","hdmi_cec","video_passthrough","bluetooth_version","bluetooth_codecs","power_consumption_operating_w","power_consumption_standby_w","power_supply","weight_g","wall_mountable"],"notes":{"audio_formats":"Specifications page: Linear PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD and Dolby Atmos. No DTS format is listed.","max_audio_sample_rate_khz":"Specifications page lists sampling frequency 32, 44.1 and 48 kHz for the sound bar. It does not name the connection or codec.","video_passthrough":"The only HDMI connector is the TV eARC/ARC connection. There is no HDMI source input.","bluetooth_version":"Specifications page: Bluetooth Version 5.0, Power Class 2, A2DP 1.3 and AVRCP 1.6.","bluetooth_codecs":"Specifications page: corresponding codec SBC.","power_consumption_operating_w":"Sound bar specifications: power consumption 40 W. The subwoofer is listed separately at 40 W.","power_consumption_standby_w":"Sound bar standby mode 1.5 W. Deep standby mode 0.3 W. The sound bar has no network standby.","weight_g":"Sound bar weight 6 lbs 6 oz (2.9 kg). Subwoofer weight 9 lbs 1 oz (4.1 kg).","wall_mountable":"Section Hanging the sound bar on a wall describes two keyholes and the supplied template and spacers."}},{"url":"https://www.trustedreviews.com/reviews/polk-signa-s4","kind":"review_site","accessed":"2026-10-13","fields":["dts_x"],"notes":{"dts_x":"Review states the sound bar decodes PCM and Dolby formats and has no support for any DTS format. The maker manual lists no DTS format."}},{"url":"https://www.hometheaterforum.com/polk-audio-introduces-signa-s4-dolby-atmos-sound-bar-system/","kind":"press","accessed":"2026-10-13","fields":["launch_price_usd","release_date"],"notes":{"launch_price_usd":"Launch article of 2021-12-20 gives the system price as $399 and says it is available now from Polk Audio. The Tom's Guide review also gives $399. US MSRP excluding sales tax is not stated.","release_date":"What Hi-Fi? reported the launch on 2021-12-15. Home Theater Forum reported it as available now on 2021-12-20."}},{"url":"https://www.areadvd.de/news/polk-audio-stellt-neues-dolby-atmos-soundbar-system-vor","kind":"press","accessed":"2026-10-13","fields":["launch_price_eur","markets"],"notes":{"launch_price_eur":"German launch report of 2021-12-16: available now for 349 euros recommended retail price (UVP) from PolkAudio.com and dealers. VAT treatment is not stated and a German UVP normally includes VAT."}},{"url":"https://greentoe.com/product/Polk_Audio_Signa_S4_3-1-2-Channel_Dolby_Atmos_Soundbar_System_300443-01-00-101","kind":"retailer","accessed":"2026-10-13","fields":["package_dimensions_mm","package_weight_g"],"notes":{"package_dimensions_mm":"Retailer table lists box dimensions (LxWxH) as 44 x 17.38 x 10.38 in. Mapped to width, depth and height in that order. Inches converted exactly to mm and rounded to 0.1 mm.","package_weight_g":"Retailer table lists package weight 21.13 lb. NFM lists 21.20 lb. Converted exactly and rounded to 1 g."}},{"url":"https://creativeaudio.net/signa-s4/","kind":"retailer","accessed":"2026-10-13","fields":["gtins"],"notes":{"gtins":"UPC 747192135829 listed with part number 300443-01-00-101. Electronic Express lists the same UPC."}}],"fields_filled":50,"updated":"2026-10-13"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}