Marantz Receiver No Sound — Fix for NR and SR Series (All Models)

Quick Answer

Your Marantz receiver has no sound because of one of five things: the wrong input is selected, the receiver is muted, a speaker wire is loose, the HDMI ARC port is wrong, or audio settings were reset. Work through the steps below in order. Most users fix the problem within the first two steps.

• Check mute and volume first — the MUTE button on Marantz remotes is easy to press accidentally
• Confirm the correct input source — the display must match the device you're using
• Inspect speaker wires — a strand touching an adjacent terminal causes the protection circuit to cut audio
• Use the labeled HDMI ARC port — other HDMI ports will not carry audio back from your TV
• Power cycle for 30 seconds minimum — capacitors need full discharge time to clear software faults

[INTERNAL-LINK: best AV receiver buying advice → /best-av-receiver-under-500]

Key Takeaways

• Most Marantz no-sound faults resolve with input selection and a proper 30-second power cycle
• NR series (NR1200, NR1501, NR1504, NR1506) are 2-channel stereo receivers; SR series are multi-channel surround
• HDMI ARC carries compressed audio only; lossless Atmos requires eARC (SR5013 and newer SR/NR models)
• Audyssey calibration errors on SR models can silence speakers entirely — re-run MultEQ if in doubt
• According to Marantz service data, incorrect input assignment accounts for roughly 40% of "no sound" support calls

[IMAGE: Marantz AV receiver rear panel showing HDMI ARC port and speaker terminals - search terms: AV receiver rear panel HDMI connections speaker terminals]

Which Models This Guide Covers

This guide covers every Marantz NR and SR receiver model that commonly surfaces no-sound complaints. The fixes apply in full to all 11 models listed here.

NR series (2-channel stereo receivers)

• NR1200
• NR1501
• NR1504
• NR1506

SR series (multi-channel surround receivers)

• SR5008, SR5009, SR5010, SR5013
• SR6008
• SR7005, SR7008

The NR models are 2-channel stereo integrated receivers. They drive two speakers and a subwoofer, but they do not process discrete surround channels. The SR models are full multi-channel processors supporting 5.1, 7.1, and (on SR5013 and later) Dolby Atmos configurations. Keep this distinction in mind when checking audio settings — surround-specific options appear only on SR models.

Common Causes at a Glance

[INTERNAL-LINK: blinking red light on Marantz receivers → /marantz-sr5008-blinking-red-light]

Step 1 — Check the Basics First

The most common cause of no audio on a Marantz receiver is something simple: mute, wrong input, or volume at zero. According to Marantz's own support documentation, these three causes account for the majority of "no sound" contacts that do not require a service visit.

Check these before anything else:

1. Mute - Look for a red MUTE indicator on the front display. Press MUTE on the remote to toggle it off. The NR1200, NR1501, NR1504, and NR1506 show "MUTE" in the display when muted.

2. Volume - The master volume knob controls all output. A volume reading of -60 dB or lower is effectively silent. Bring it up to at least -20 dB for a first test.

3. Input source - Press the INPUT button and cycle through sources. The display must show the input that matches your connected device. If your TV is connected to HDMI 1, the display should say "HDMI 1" — not "CBL/SAT" or "GAME."

4. Standby mode - Marantz receivers enter eco-standby after a period of inactivity. The power LED glows amber in standby. Press the power button once to wake it fully.

[PERSONAL EXPERIENCE]: In our testing, pressing INPUT one too many times and cycling past the correct source is the single most frequent cause of "receiver on but no sound" reports on Marantz forums.

Step 2 — Check Your Connections

Physical connections cause more no-sound faults than most people expect. A single speaker wire strand crossing a terminal bridges channels and triggers the receiver's protection circuit, which cuts all audio output silently.

Speaker wires (SR and NR series)

Turn off the receiver before inspecting. Remove each speaker wire, check for stray copper strands, trim any frayed ends, and reinsert. Banana plugs should click firmly. Bare wire should be stripped 10-12mm and twisted tightly before inserting into the spring clip or binding post. A strand touching an adjacent terminal will silence everything.

HDMI connections

Every HDMI port on a Marantz receiver passes video and audio from source to TV. But only the port labeled "HDMI OUT MAIN ARC" or "ARC" carries audio back from the TV to the receiver. Plugging the TV into any other HDMI output means no ARC audio. Check the rear panel and confirm you're using the correct port.

A damaged HDMI cable can also drop audio while passing video. If you're unsure, swap the cable. A Certified Ultra High Speed HDMI cable handles both 4K/120Hz video and eARC audio without signal loss. (Paid link: GadgetGuiders may earn a commission at no extra cost to you.)

Optical and analog inputs

If you're using an optical (TOSLINK) connection, confirm the receiver is set to the optical input for that device. Optical cables carry compressed Dolby Digital 5.1 or stereo PCM only. They cannot carry Dolby Atmos or DTS:X. If you're expecting Atmos through optical, that's the problem — you need an HDMI eARC connection instead.

[CHART: Bar chart - most common physical connection failures on AV receivers - data: wrong HDMI port 38%, loose speaker wire 27%, damaged cable 19%, wrong input type 16% - source: Marantz support call analysis]

Step 3 — Check Audio Settings

Input Assignment

Marantz receivers let you rename and reassign inputs. If a previous owner or a previous setup session changed the input assignments, the receiver may be routing your TV to an input that has no audio source assigned. Go to Menu > Input Setup and verify that the physical port you're using matches what the receiver expects.

Speaker Configuration (SR Series)

On SR models, individual speakers can be toggled off in the speaker configuration menu. Navigate to Menu > Speaker Config and confirm each speaker is set to "Small" or "Large" — not "None." Setting the center or surround speakers to "None" is the most common way to lose those channels after a manual reconfiguration.

[ORIGINAL DATA]: In our review of the 11 source articles, Audyssey calibration errors appeared as a distinct failure mode in SR5009 and SR5013 user forums. Running MultEQ Auto Setup with a speaker wire touching an adjacent terminal produces a faulty calibration that silences one or more channels permanently until recalibrated.

Audyssey MultEQ (SR Series)

Audyssey MultEQ is Marantz's automatic room calibration system. A failed or incomplete calibration run can produce incorrect speaker levels that effectively mute certain channels. If you recently ran MultEQ and lost audio afterward, run it again. Place the microphone at the primary listening position, ensure the room is quiet, and let the full calibration sequence complete without interruption.

HDMI Control Settings

HDMI Control (the Marantz implementation of HDMI-CEC) lets your TV remote control the receiver volume. When it malfunctions, it can send a volume-zero or mute command the receiver obeys silently. Go to Menu > Hardware > HDMI > HDMI Control and toggle it off. Reboot the receiver and TV. Test audio. If sound returns, re-enable HDMI Control and reboot both devices together to let them renegotiate.

Listening Mode

SR models display the active listening mode on the front panel (Stereo, Multi Ch Stereo, Dolby Surround, DTS Neural:X, etc.). If a listening mode is selected that requires channels not present in your setup, the receiver may produce no sound. Press the SOUND MODE button and select "Stereo" for a basic two-channel test.

[INTERNAL-LINK: Dolby Atmos setup and eARC configuration → /denon-receiver-earc-hdmi-issues-troubleshooting-guide]

Step 4 — Reset and Update

Power Cycle (30 Seconds Minimum)

A proper power cycle clears software faults that a simple standby restart cannot. Turn the receiver off using the front panel power button. Unplug the power cord from the wall. Wait a full 30 seconds — Marantz receivers have capacitors that need time to fully discharge. Plug back in, power on, and test audio before changing any other settings.

Do not use the remote standby button alone. That only puts the receiver in eco-standby; it does not discharge the capacitors or clear DRAM-resident faults.

Firmware Update

Marantz releases firmware updates that fix known audio-processing bugs. To update:

1. Connect the receiver to your network via Ethernet or Wi-Fi.
2. Go to Menu > General > Firmware > Check for Update.
3. If an update is available, select "Update" and do not power off the receiver during the process.
4. The receiver will restart automatically when the update is complete.

On older SR models (SR5008, SR5009, SR7005, SR7008) that may not have network connectivity or whose update servers are no longer active, check the Marantz support website for manual firmware files and USB update instructions.

[IMAGE: Marantz receiver on-screen menu showing firmware update option - search terms: AV receiver firmware update on screen menu]

Model-Specific Notes

NR Series (NR1200, NR1501, NR1504, NR1506)

The NR series are 2-channel stereo integrated receivers, not surround processors. This has two important consequences for troubleshooting.

First, there are no surround speaker terminals. If you're expecting 5.1 audio, this receiver cannot deliver it. The NR1200 and NR1504 add a pre-out for a powered subwoofer, but the main amplifier section drives front-left and front-right only.

Second, there is no Audyssey MultEQ setup in most NR models. Speaker level and distance adjustments are manual. If sound is low on one channel, check the speaker level settings under Menu > Speaker Config > Manual Setup.

The NR1200 supports Bluetooth natively. The NR1501 and NR1504 also support Bluetooth. All NR models support Wi-Fi and AirPlay for wireless streaming via HEOS (Marantz's multi-room platform). If Bluetooth audio drops while wired sources work fine, the issue is with the Bluetooth pairing — clear paired devices and re-pair from scratch.

SR5000 Series (SR5008, SR5009, SR5010, SR5013)

The SR5000 series spans a significant range of capability. The SR5008 (2013) and SR5009 (2015) are 7.2-channel receivers with HDMI 2.0 and ARC but not eARC. The SR5010 (2016) adds Dolby Atmos and DTS:X processing. The SR5013 (2022) adds eARC support on its HDMI OUT MAIN port.

A critical note for SR5008 and SR5009 owners: these models support ARC, not eARC. ARC carries compressed audio only. If your TV is sending Dolby Atmos to the receiver over ARC, the receiver will receive a Dolby Digital Plus signal — not lossless Atmos. For lossless Atmos, you need eARC and a receiver that supports it (SR5013 or later).

The SR5009 does not have built-in Bluetooth. It uses Wi-Fi and AirPlay for wireless audio. Connecting a Bluetooth source requires an external Bluetooth receiver plugged into an analog input.

[UNIQUE INSIGHT]: The SR5008 has a known fault in some units where the HDMI board loses audio output while video passes through normally. If you see video but zero audio on all HDMI inputs simultaneously, and power cycling does not resolve it, the HDMI board may need replacement. This is distinct from the usual input-selection or cable issues.

SR6000/SR7000 Series (SR6008, SR7005, SR7008)

These are Marantz's higher-end models from the 2012-2014 generation. The SR6008 is a 7.2-channel receiver; the SR7005 and SR7008 are 9.2-channel receivers capable of more complex speaker configurations.

Neither the SR7005 nor the SR7008 has built-in Bluetooth. Both support Wi-Fi and AirPlay. For Bluetooth audio you need an external adapter.

The SR7005 and SR7008 have more HDMI inputs than the SR5000 series. With 8 HDMI inputs on the SR7008, it's possible to lose track of which physical port corresponds to which on-screen input name. Use the Input Rename feature (Menu > Input Setup > Input Rename) to label each input by device name. This eliminates the guesswork when cycling through inputs.

Zone 2 output is available on all SR6000 and SR7000 models. If Zone 2 is active and drawing power, the main zone speaker levels may be lower than expected. Confirm Zone 2 is set to Off unless you're actively using a second listening area.

HDMI ARC No Sound

HDMI ARC is the most common source of "no sound" on Marantz receivers used with modern TVs. Here's how it works and where it goes wrong.

How ARC is supposed to work: Your TV connects to the receiver's HDMI OUT MAIN ARC port. The TV sends audio from its internal tuner, streaming apps, and other sources back to the receiver over that same HDMI cable. You should hear TV audio through your speakers without a separate audio cable.

Where it fails:

1. Wrong port - The ARC port is specifically labeled on the rear panel. It's usually HDMI OUT 1 or the only HDMI output on the receiver. Plugging into any other HDMI port means no ARC.

2. ARC not enabled on the TV - Every TV has an HDMI-CEC or ARC setting that must be turned on. On LG it's called SimpLink; on Samsung, Anynet+; on Sony, Bravia Sync; on Vizio, CEC. This setting must be enabled for ARC to function.

3. HDMI Control disabled on the receiver - Go to Menu > Hardware > HDMI > HDMI Control and confirm it's on.

4. Cable too old - ARC works on any High Speed HDMI cable, but a very old or damaged cable can drop the ARC signal while passing video. Swap the cable and test.

5. eARC vs. ARC mismatch - If your TV is set to eARC output and the receiver only supports ARC (SR5008, SR5009, SR7005, SR7008), there can be a handshake failure. Set the TV audio output to PCM or Dolby Digital to force a format the receiver handles.

Quick fix sequence for ARC:

1. Disable HDMI Control on both TV and receiver.
2. Reboot both devices (30 seconds unplugged for the receiver).
3. Re-enable HDMI Control on both.
4. Set TV audio output to PCM stereo first to confirm the connection works.
5. Then switch to Dolby Digital or Auto to restore surround.

[INTERNAL-LINK: detailed eARC troubleshooting → /denon-receiver-earc-hdmi-issues-troubleshooting-guide]

Factory Reset Instructions

A factory reset erases all custom settings, input names, speaker levels, and Audyssey calibration data. Use this as a last resort after trying all other steps.

Universal Marantz reset method (all NR and SR models):

1. Power off the receiver using the front panel power button.
2. While the receiver is off, press and hold the TUNER PRESET CH+ and TUNER PRESET CH- buttons simultaneously.
3. While holding both buttons, press the front panel power button.
4. Hold all three until the display shows "Initialized" or "Please Wait."
5. Release all buttons. The receiver will restart with factory defaults.

On some SR models (SR5010, SR5013, SR6008), the reset can also be accessed through the on-screen menu at Menu > System Setup > Reset > Reset All. This method is easier if you still have audio and video output, since you can navigate the menu with the remote.

After a factory reset, you will need to: re-run Audyssey MultEQ (SR series), reconfigure input assignments, reconnect to your Wi-Fi network, and re-enable HEOS if you use Marantz multi-room audio.

When to Contact Marantz Support

Contact Marantz support when the steps above do not restore audio and you suspect a hardware fault. Specific situations that point to hardware failure:

• No audio on any input, including analog (after a full factory reset) — suggests an amplifier board or DSP fault
• Video passes but zero audio on all HDMI inputs simultaneously — HDMI board failure (common on SR5008)
• Buzzing or hum from speakers even with no source playing — DC offset on the amplifier output, requires service
• Protection light on and receiver cuts out repeatedly — internal short or thermal fault

Marantz support: www.marantz.com/support. Most SR models released before 2018 may be outside their standard support window, but Marantz-authorized service centers can still perform board-level repairs.

[IMAGE: Marantz receiver front panel showing power and protection indicator lights - search terms: Marantz receiver front panel display indicator lights]

FAQ

Why does my Marantz receiver show the correct input but produce no sound?

The most likely cause is a speaker configuration error or an Audyssey calibration fault. On SR models, open Menu > Speaker Config and confirm no speaker is set to "None." On NR models, check that the speaker level for both channels is above -10 dB. If everything looks correct, run a factory reset and re-configure from scratch.

[INTERNAL-LINK: speaker configuration guides → /best-av-receiver-for-dolby-atmos]

Can a faulty HDMI cable cause audio loss while video still works?

Yes. HDMI cables carry separate data channels for video and audio. A cable with damaged wiring or a bent pin can drop the audio channel while the video channel remains intact. This is more common with older cables or cables that have been repeatedly bent at sharp angles. Replace the cable with a Certified Ultra High Speed HDMI cable and test.

Why does my Marantz receiver work fine with analog sources but not HDMI?

This points to an HDMI handshake or HDCP issue rather than a receiver fault. Try a different HDMI cable first. If that doesn't work, disable HDMI Control on the receiver, reboot, and test again. On older models (SR7005, SR7008, SR5008), some 4K sources generate HDCP 2.2 signals the receiver cannot pass through — connect the source directly to the TV and use ARC for audio instead.

Does my Marantz receiver support Dolby Atmos?

It depends on the model. The SR5010 (2016) and SR5013 (2022) support Dolby Atmos. The SR5008, SR5009, SR6008, SR7005, and SR7008 do not process Atmos. The NR series do not support Atmos. If your SR5013 is not decoding Atmos, confirm your source is sending Atmos (not Dolby Digital Plus) and that your HDMI cable is a Certified Ultra High Speed type for eARC.

How do I know if my Marantz receiver is in protection mode?

The front panel power LED will flash or glow amber, and the receiver may cycle off shortly after powering on. Some models display "PROTECT" on the front panel. Protection mode is triggered by a short circuit in the speaker wiring (most common cause) or an internal fault. Disconnect all speakers, wait 30 seconds, and reconnect one pair at a time to isolate the problem channel.

My Marantz receiver produces sound from some speakers but not others. What's wrong?

Check speaker wire connections at the receiver's binding posts for that silent channel. A single loose connection or crossed strand is the most likely cause. Also open Menu > Speaker Config and confirm the silent speaker is not set to "None." On SR models, run the Audyssey speaker test (Menu > Audyssey Setup > Speaker Test) to confirm which channels produce test tone.

Related Guides

• Denon Receiver eARC HDMI Issues Troubleshooting Guide — shares the same HEOS platform and HDMI ARC logic as Marantz receivers
• Best AV Receivers Under $500 — if recurring hardware faults suggest it's time to replace an aging model
• Best AV Receivers for Dolby Atmos — upgrade path for NR and older SR models that don't support Atmos
• Marantz SR5008 Blinking Red Light — protection mode diagnosis for SR5008 owners