Customer Ratings & Reviews

Wow! This little amp sounds like a much bigger model. I am so pleased with it. Wasn't sure but read lots of reviews and decided to treat myself. Sure glad I did. I have not stopped listening to all my favorite songs. I have Martin Logan towers that take a lot of power and this amp makes them sound awesome. I replaced an older Harmon Kardon 3770 that spec'd out 120 rms @ 8ohms and this 100 watts sounds like more.

An excellent sounding amplifier, with a warm sound and excellent mid range. I also own the Bose music amplifier, which has a brighter sound, but the Marantz M1 amplifier has a softer warmer sound, which easier on the ears at higher volumes. The Marantz M1 amplifier works well with the Klipsch reference 800F speakers and with two Klipsch SW 121 subwoofers using a splitter in the subwoofer output connector. Even though the Bose music amplifier does go somewhat louder than the Marantz M1, the Marantz M1 delivers plenty of power.

Extremely simple setup, beautiful design, and solid rich clear audio makes this a streaming amplifier a wonder addition to my audio world. Paired with Heresy IV speakers makes high quality audio create a wonderful listening experience. Totally worth the cost!

The amplifier has enough wattage to drive practically any speaker, including my Bowers & Wilkins 704 s3 towers and my Martin Logan Motion 15i bookshelf speakers. I have this plugged permanently into my office production PC, running a 2.1 system with the virtual sound mode helping to fill the entire room with sound. The only thing keeping it from 5 stars is the reliance on the Heos app (which cannot be installed onto a PC or TV), and lack of physical controls on the device past play/pause, forward and backwards. Lack of volume control, input select, etc without either your phone or your tv remote mean you're reliant on your portable devices to control it. Not a huge deal for a STREAMING amp, as you probably will be working around that anyways, but it is annoying nonetheless.

Amazing piece of equipment, it drives my Pro-ject speakers effortlessly. It's very dynamic and the spatial quality is very good. Bass quality was definitely improved after the last Heos update. My Rel subwoofer loves this amp and so do I. It's my first streamer and the ability to control your audio from your seating position is definitely a plus. Movies sound great in the virtual mode, it's unbelievable the sound coming out of a 2.1 system. My only negative is I think that Marantz should have supplied a remote control for basic functions. If your looking for a streaming amp and your budget allows, I highly recommend this amp.

Works seamlessly, sounds fantastic, and stays cool. Im able to fit it in a 12” depth cabinet and run wires to it without any problems. I am powerint 2 Golden Ear Aos3s with a sub connected.

too early to truly review this item. I am still working through Heos, appleplay and prime music. They work together through this unit to drive both wired speakers and a wireless denon heos portable speaker. So far so good but there are still things that I do not understand

Fantastic audio for streaming with Heos. I paired it with bowers and wilkens 606-S3 speakers with floor stands and a TEAC TN-4DSE turntable. All connected with blue jeans cables.

Maratz is Just Truly Amazing! I have an Avr already and wanted I wanted a small.set up for my Back Yard. And they knocked it out tye park once again! Small Piece with Huge Power!

Great product. Works very well with the Martin Logan speakers and subbase. I use mostly for TV

After the firmware update in June it’s been working seamlessly. No real issues at all. Sounds great. I use it primarily with my pc through optical.

This was the prefect device to complete the update on my surround sound system very satisfied.

Amazing quality and sound! Paired this with 2-MartinLogan - Motion SLM 4" Flat-Panel Speaker and a 10" ML Dynamo sub. Sound is absolutely incredible!

This integrated amplifier is an excellent choice for small spaces and has clean power.

The unit that I purchased makes a “pfft pfft pfft pfft pfft…” noise with a lot of static. It seems a little better at higher volumes. Overall the noise makes the M1 unusable. So, it will be going back.