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LG SPM7A Soundbar

LG SPM7A Soundbar

By LG · Soundbars · Desk & Streaming Setup · More from LG

  • High Resolution Audio up to 24-bit/96 kHz
  • 4K, Dolby Vision and HDR10 video passthrough
  • 1 HDMI input and 1 HDMI output (HDCP 2.3, ARC)
  • Wireless active subwoofer 17.2 lbs
  • MSRP $299

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Problems, parts and running costs

Summary

The LG SPM7A is a discontinued 3.1.2-channel soundbar sold with a wireless SPN5B-W subwoofer, with Dolby Atmos, DTS:X and 4K passthrough. Check the connections before you buy: it has only one HDMI input, and LG has ended the model.

Strengths

  • A genuine 3.1.2 Atmos and DTS:X layout with two up-firing speakers in the bar.
  • 4K, Dolby Vision and HDR10 passthrough with HDCP 2.3 on both HDMI ports.
  • High-res support up to 24-bit/96 kHz, plus 24-bit upsampling and Meridian Audio Technology.
  • A low-profile 35-inch bar with an included wall mount bracket and optical cable.
  • One year of parts-and-labor warranty.

Weaknesses

  • Only one HDMI input, so a TV, console and streamer need an external switch.
  • LG lists “Wireless Surround Sound Ready: No”, so there is no path to add wireless rear speakers.
  • Discontinued: LG’s support record marks the model discontinued, which weakens parts and service over time.
  • LG’s own materials disagree on the channel count, with a spec row reading 3.1.1 ch against the claimed 3.1.2.
  • Two power leads — the bar’s adapter and the subwoofer’s own mains — mean two outlets and cable management.

Verified specifications

Channelsmarketed as 3.1.2, with left and right up-firing speakers per the manual; LG’s own spec table says 3.1.1 ch.
Amplifier380 W RMS total — front 30 W RMS × 2, center 30 W RMS, top 35 W RMS × 2, subwoofer 220 W RMS.
Subwoofer1-way, 1 speaker, 3 Ω, rated input 220 W RMS and maximum input 440 W RMS.
FormatsDolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS:X, DTS Digital Surround, DTS-HD High Resolution, DTS-HD Master Audio and LPCM, plus FLAC up to 192 kHz, WAV, MP3, OGG and AAC.
High-resolution audioup to 24-bit/96 kHz, 24-bit upsampling and Meridian Audio Technology.
Video4K passthrough, Dolby Vision and HDR10 passthrough, HDMI HDCP 2.3.
Connectivityone HDMI input, one HDMI output with ARC, optical input, USB and Bluetooth, plus LG TV Sound Sync over optical or Bluetooth.
FeaturesAuto Volume Leveler, Dynamic Range Control, firmware over-the-air updates, LCD auto-dimmer, SIMPLINK, Bass Blast and AI Sound Pro, with Movie, Music and Standard sound modes.
Power supplyexternal adapter (DA-50F25 or MS-Z2000R250-050D0-P), 100–240 V in, 25 V / 2 A out.
Dimensionsbar 35.4 × 2.6 × 4.7 in (890 × 65 × 119 mm); subwoofer 7.1 × 15.4 × 11.5 in (180 × 394 × 290 mm).
Weightbar 8.2 lbs; subwoofer 17.2 lbs.
Includedoptical cable, remote control, wall mount bracket, batteries, warranty card and cable management.
Warrantyone year parts and labor (LG, 2026).
Full research notes and sources

Which model this is

This page covers the LG SPM7A, sales model suffix SPM7A.DUSAWLK, UPC 195174033890, a 3.1.2-channel bar sold with the SPN5B-W wireless subwoofer. LG’s support record marks it a 2020 model and discontinued; the owner’s manual is revision 2112_Rev01, copyright 2021, with a release date of 02/04/2022. Do not merge it with other LG bars such as the SN7, S75Q, S80 or S90 families. The Amazon listing is ASIN B0BQLCDPHB.

One HDMI input

The SPM7A has a single HDMI input and a single HDMI output that carries ARC. There is no second passthrough port, so a TV, a console and a streamer cannot all stay plugged in; anything beyond one source needs an HDMI switch upstream of the bar. ARC lets the bar take audio back from the TV, and HDCP 2.3 covers copy-protected 4K sources.

Sound formats and power

LG rates the system at 380 W RMS total: 30 W RMS each for the front left and right, 30 W RMS for the center, 35 W RMS for each up-firing top speaker, and 220 W RMS for the subwoofer. The manual lists the subwoofer as a 1-way, 3 Ω driver rated at 220 W RMS with a 440 W maximum input. The bar handles Dolby Atmos, DTS:X, TrueHD and DTS-HD Master Audio, plus FLAC up to 192 kHz, and adds 24-bit upsampling and Meridian Audio Technology. On paper that is a full Atmos layout, but LG lists no wireless surround support, so the rear channels stay in the bar.

Repairs, running costs and upkeep

Clean the exterior with a soft dry cloth, or a cloth lightly moistened with mild detergent, and keep alcohol, benzine and thinner away. Firmware updates arrive over the air. There are no consumables to replace. The bar runs from an external 25 V / 2 A adapter and the subwoofer takes its own mains lead, so a full setup needs two outlets. Because the model is discontinued, spare parts and authorized service may be limited. Warranty is one year parts and labor.

Is it worth it?

LG listed the SPM7A at an MSRP of $299, and Walmart showed it near $197.77 in October 2026. At the higher figure the bar is hard to justify for a discontinued model with no lab testing; near the lower one it is defensible for a 3.1.2 Atmos bar with a real 220 W subwoofer and 4K/HDR passthrough, as long as you accept the single HDMI input and the lack of measured performance data.

Sources

Manufacturer:

Independent reviews:

Owner reports:

  • No verified owner reports were found for this model.

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