26% of 80 verified Marantz Cinema 50owners don't recommend it, and 12 describe specific problems — based on real owner comments from Reddit, enthusiast forums, and YouTube.
For balance: 66% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score
“It's been the case since day one, only works if eARC is disabled but you lose Atmos -.- really unprofessional and very unhappy so far.”— pressslav on Reddit
“I have the marantz cinema 50, upgrading from denon x1800h. The movies sound quality is better, but the music is pretty bad. I think it has bad DAC, or a bad implementation.”— supremeBanality on Reddit
“All these are driving by Marantz Cinema 50. When I add last 4 speakers I lose a lot of separation and the sound when I listen is kind a washed out especially above -50db”— the_player_moni on Reddit
“Sony a90j via eARC to Marantz Cinema50 AVR. After 5-10m of gameplay, the Atmos signal becomes distorted/garbled and requires me to switch PS5 audio formats to reset it.”— Competitive-Cost-661 on Reddit
“I used this movie to sound test my new Marantz Cinema 50 with a 5.1 + front two Dolby Atmos setup. I was so disappointed that I could barely hear the dialog”— mistereden on Reddit
“I am angered every time I use my Marantz Cinema 50 because the 4k video signal from PS5/Series X might not actually turn on and I often have to flip between video sources for it to "catch" and work properly.”— GrimCoven on Reddit
“At first, my new unit did not have the serious issues that are now daily issues. Seems like each day they continue to get worse now.”— TomatilloSad4549 on Reddit
“I had a Marantz cinema 50 but it was too buggy with cec on a Sony tv. Got a Sony Str-az5000es and haven’t looked back.”— thespieler11 on Reddit
“Hooked it up to Marantz Cinema 50, went through standard Audyssey EQ, had the sub between -10 and -12db, never went beyond 60% vol on the AVR. Music was flawless but LFE effects from Godzilla Minus One and Dune 2 completely wrecked the drivers on it.”— private_static_int on Reddit
“I have TV LG C2 and bought yesterday Marantz Cinema 50. I can't make eARC work with this receiver.”— mglimabr on Reddit
“My "first" Cinema 50 kept losing sound after changing audio settings such as crossovers, levels and sound modes only within the first ~15 minutes of operation”— anonymous on AVS Forum
“Yes I have the same problem with Smart Select. Pressing and holding to save a state then using said state will wipe all distances and levels.”— danielmaciel on AVS Forum
Not complaints — practical notes from owners that didn't affect the score.
“whenever I push the mute button (av remote, universal remote, or shield pro remote through ir control) the receiver doesn't remain muted. It's as though it's sending the command multiple times”— dbell21 on AVS Forum