Marantz AV 30 8k Reference Grade 11.4 Channel Home Theater Preamplifier / Processor

Reference Home Theater Begins With Separation

Receivers ask one box to do everything. The Marantz AV 30 does not. It is an 11.4-channel processor that handles decoding, switching and control, then hands amplification to components built for nothing else. Every channel leaves on balanced XLR and on RCA, four subwoofer outputs among them.

Every modern format is here. Dolby Atmos, DTS:X, IMAX Enhanced, Auro-3D, 360 Reality Audio and MPEG-H all decode across 11.4 channels. Room correction ships as Audyssey MultEQ XT32. Dirac Live is an upgrade for anyone who wants to go further. Seven HDMI inputs and three outputs, one with eARC, pass 8K/60 and 4K/120 with HDCP 2.3.

Music gets the Marantz treatment too. HEOS streaming is built in, with AirPlay 2, Bluetooth, Roon Ready support and a moving-magnet phono input for a turntable. The same rack that shakes the room on Saturday plays vinyl softly on Sunday.

Eleven Channels of Balanced Confidence

Every channel leaves the AV 30 twice, on RCA and on balanced XLR. Balanced is the one that shrugs off noise on a long run to the amplifiers. Four separate subwoofer outputs let Audyssey (or Dirac) manage multiple subs independently, smoothing bass across every seat instead of just one.

The 24.5-pound chassis wears Marantz's styling in black, porthole display and all. The warranty runs 5 years. Pair it with Marantz's matching AMP 30 or the amplification you already love.

What Reviewers Are Saying

Chris Boylan of ecoustics, in a May 12, 2026 review, praised the AV 30's decoding of every major format as "at least as good if not better than the experience I've had in many premium movie theaters," listing "top notch sound quality" among its strengths. His honest gripes: no Google Cast support, and HEOS doesn't natively stream Dolby Atmos Music.

Who Is This Processor Best For?

• You are building theater separates — the processing is settled, and the power is yours to choose.
• You run long cable runs — balanced XLR outputs on all 11.4 channels reject noise along the way.
• You take bass seriously — four independent subwoofer outputs smooth response across the room.
• You want tomorrow's video today — 8K/60 and 4K/120 passthrough across seven HDMI inputs.
• You still need amplification — the AV 30 is a processor, so every one of those channels takes its power from somewhere else. Pair it with our multi-channel amplifiers and the pair does a receiver's job with far more headroom.

How Does It Connect to Your System?

Connect each channel's XLR or RCA output to your amplification, from a matching Marantz AMP 30 to any power amps you choose, and up to four subwoofers to their independent outputs. Sources join through seven HDMI inputs, your TV through eARC, and your turntable through the phono input. Run Audyssey with the included microphone, or upgrade to Dirac Live, and let the room correction do its work.

From there, movie night stops imitating the theater and starts beating it.

Pairs Well With

Building your theater around the AV 30? Here are some great companions:

• Subwoofer: Four outputs invite serious bass — see our Subwoofers.
• Floorstanding Speakers: Anchor the front stage — see our Floorstanding Speakers.
• Cables: Good XLR interconnects feed your amplification — see our Interconnect Cables.
• Audio Rack: House the growing stack — see our Audio Racks.

Frequently Asked Questions

What does 11.4 channels mean?

Eleven main channels plus four independent subwoofer outputs, each available on both RCA and balanced XLR.

What surround formats does it decode?

Dolby Atmos, DTS:X, IMAX Enhanced, Auro-3D, 360 Reality Audio, and MPEG-H, among others.

Does it support 8K video?

Yes. Seven HDMI inputs and three outputs pass 8K/60 and 4K/120 with HDCP 2.3.

What room correction does it use?

Audyssey MultEQ XT32 is included, and Dirac Live is available as an upgrade.

Can it play music too?

Yes: HEOS streaming, AirPlay 2, Bluetooth, Roon Ready support, and a moving-magnet phono input.

What warranty does it carry?

Marantz covers the AV 30 with a 5-year warranty.

See It in Action

Audioholics reviews the AV 30 and compares Dirac ART, Audyssey, and manual setup:

Sound United's training team tours the AV 30's specs and technology:

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Learn More

Want to learn more about home theater separates, room correction, or building a reference theater? Visit our Learning Center for guides, tips, and expert advice.