Manufacturer-documented
Marantz MODEL 50: restore tone controls bypassed by SOURCE DIRECT
Marantz MODEL 50 — restore tone controls bypassed by SOURCE DIRECT. Follow the exact documented route and keep the actual result.
Read the guide →Audio Fix
Your devices.
A clearer next step.
Tell us what you own and what isn’t working. Get a clear next step.
Documented checks for headphones, speakers, receivers, amplifiers, DACs, interfaces and turntables. Choose the exact model, symptom and connection. Free to use. No account required.
Loading guided checks…
Scope and coverage
Documented guides you can read
Choose your exact model to see current coverage. The library currently contains 2700 guides for 327 exact reviewed models. Other reviewed models remain searchable and receive an honest “no matching guide” result when no procedure applies.
The checks use manufacturer or platform documentation. Separately labelled owner reports help us choose useful checks and explain real-world uncertainties; they do not prove a cause or a cure. These procedures are not our physical tests, even where a linked review is hands-on. If a required menu, version or condition is unknown, follow the unknown branch.
Manufacturer-documented
Marantz MODEL 50: select the documented single speaker bank
Marantz MODEL 50 — select the documented single speaker bank. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: check a silent optical input with two-channel PCM
Marantz MODEL 60n — check a silent optical input with two-channel PCM. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: check app wake against network standby policy
Marantz MODEL 60n — check app wake against network standby policy. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: check intermittent optical playback with narrow Lock Range
Marantz MODEL 60n — check intermittent optical playback with narrow Lock Range. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: group existing HEOS rooms for shared music
Marantz MODEL 60n — group existing HEOS rooms for shared music. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: pair a first Bluetooth music source
Marantz MODEL 60n — pair a first Bluetooth music source. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: restore intentionally disabled network or USB-A functions
Marantz MODEL 60n — restore intentionally disabled network or USB-A functions. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: route a supported source to Bluetooth headphones
Marantz MODEL 60n — route a supported source to Bluetooth headphones. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: set up a first wired home-network connection
Marantz MODEL 60n — set up a first wired home-network connection. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL 60n: switch between already paired Bluetooth sources
Marantz MODEL 60n — switch between already paired Bluetooth sources. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1 and Denon Home 350: Select an already installed HEOS analogue source
Marantz MODEL M1 and Denon Home 350: Select an already installed HEOS analogue source. Shared exact-model procedure, with model-specific prerequisites retained.
Read the guide →Manufacturer-documented
Marantz MODEL M1: add a first wired home-network room
Marantz MODEL M1 — add a first wired home-network room. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: check separate Bluetooth-source and unit levels
Marantz MODEL M1 — check separate Bluetooth-source and unit levels. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: check the context of interrupted network playback
Marantz MODEL M1 — check the context of interrupted network playback. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: compare direct TV listening without HEOS follower rooms
Marantz MODEL M1 — compare direct TV listening without HEOS follower rooms. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: group existing HEOS rooms for shared music
Marantz MODEL M1 — group existing HEOS rooms for shared music. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: pair a Bluetooth source using the rear button
Marantz MODEL M1 — pair a Bluetooth source using the rear button. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz MODEL M1: Secure one known loose external speaker terminal with the amplifier already unplugged
Secure one known loose external speaker terminal with the amplifier already unplugged. Follow the exact documented checks and retain the observation.
Read the guide →Manufacturer-documented
Marantz MODEL M1: Teach an available TV infrared command to MODEL M1
Teach an available TV infrared command to MODEL M1. Follow the exact documented checks and retain the observation.
Read the guide →Manufacturer-documented
Marantz MODEL M1: Wake a confirmed deep-standby unit with a safe hardware button
Wake a confirmed deep-standby unit with a safe hardware button. Follow the exact documented checks and retain the observation.
Read the guide →Manufacturer-documented
Marantz STEREO 70s: check a stored per-input left/right balance offset
Marantz STEREO 70s — check a stored per-input left/right balance offset. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz STEREO 70s: check app wake against network standby policy
Marantz STEREO 70s — check app wake against network standby policy. Follow the exact documented route and keep the actual result.
Read the guide →Manufacturer-documented
Marantz STEREO 70s: correct audio that arrives before the HDMI picture
Marantz STEREO 70s — correct audio that arrives before the HDMI picture. Follow the exact documented route and keep the actual result.
Read the guide →How recommendations are checked
Audio Fix follows structured steps with sources attached to each claim. Forum experiences are labelled User-reported and kept separate from the evidence supporting an instruction. Unknown details remain unknown. Finishing the steps is separate from reporting that a problem is solved. A changed or withdrawn guide cannot silently resume an old procedure.
Comparing television and audio connection compatibility? Open TV & Audio Finder →