A solid product of good quality. The reason I rated 4 instead of 5 was the odd source output format; using bare wire plugs for line level outputs required me to solder up a bunch of bare wire to RCA connectors. And secondly the user interface on the keypads is a bit klunky. But now that it?s all installed and I?m used to it it?s working fine :-). A good value.

Generally pleased with this unit but it does have a few quirks to be aware of. First is the audio outputs are wire blocks instead of RCA jacks. I have never encountered a multi-zone amp, including one from Monoprice, that uses this wiring configuration so you have to adapt the blocks to standard RCA cables. Not the end of the world but definitely a nuisance.

The second odd thing is that you cannot mute zones from the keypads. The manual clearly says that you can but when you try to select that function on the keypad it just skips over it and you cannot get there. Muting a zone from the app works fine. Support has never been able to explain this.

Finally the cable for connecting multiple units together is very short and will only reach if they are directly stacked on top of each other. If you need more space between them you will have to buy a longer cable. I got a 1 meter cable on Amazon and it works fine.

I have, literally, been waiting for this product for 15 years. I rebuilt my 1909 home into a smart house and for years I have been looking for an affordable audio zone control system.

I have an equipment rack in the attic with an 8x8 HDMI matrix controller, network switches, and a custom lighting panel controlled by lighted LED push buttons in every room. I have been looking for a system to control my ceiling speakers and all of the audio equipment in the rack but all of the available systems are proprietary, usually, dealer installed and programmed systems. They are also very expensive, both to buy and to install. The Monoprice 6 zone audio control system is both affordable and easy to install.

I bought (2) 6 zone systems which are daisy-chained together giving me 12 zones of control using the included wall controllers. The wall controls connect with standard cat5e network cable, just like my lighting buttons. The controllers use Decora-style covers so they are compatible with my volume control modules as well as my light buttons. Being low voltage, they can all reside inside one standard electrical wall box with a Decora cover.

As an added bonus, the controller interfaces with my open-source smart home control software, Home Assistant, providing me with seamless control using my existing equipment. I can control all of my audio devices using the wall controllers, the IR remote controller provided with the unit, my cell phone, or one of the Android tablets available throughout the house.

The only downside I can find with the whole system is the 6 inputs. I was hoping that by daisy-chaining two units together I would increase the inputs to 12 but apparently that is not the case. You are, evidently, limited to the 6 inputs on the master controller. I have 6 digital tuners and would like to be able to tune 6 different preset stations to any of the 6 zones. This problem can be overcome with the addition of an additional audio matrix but that adds another layer of complexity to an otherwise simple control system. Other than the 6 input limitations, this system is just what I needed to complete my smart home installation.