Donner Bluetooth 5.0 Stereo Audio Amplifier Receiv

Seems Indestructible and Powerful – Adjust it Properly
My previous amplifier was a tube amp. But I burned something out (not a tube, I checked those) and I needed something that was less complicated than my old set up. My old set up was a tube amp for my front Klipches and a Class D amp for the back ones. I also have a 400 watt subwoofer.I used to feed those amps from my computer, which outputs to a discrete DAC.This is for my 10×10 home office, by the way. So I know it’s overkill.So anyway – I got the MAMP5 and used 4 channels to bi-amp my front Klipches (these are the ones you can do that on). Then I just did normal 2 channel to the back. I used pre-out to go to my sub.Then I messed around with levels and stuff on the amp and on my sub.Those blue dials on the amp – don’t turn them up past about 12 o’clock. Use the little black one on the bottom right to control overall level. The blue dials are just to set “ratio.” And you keep them at less than 12 because you want to leave some headroom for loud things in your music.If you hear the fan – that’s because you did something wrong. For example, I can make the fan come on by turning the blue knobs to almost zero, then cranking the main volume knob. Because the blue knobs are near zero, there’s almost no sound coming from the amp. But it’s still working hard. That’s because I think the blue knobs basically just work like resisters and the black knob controls the actual amplifier. SO – put the blue knobs near 12 o’clock and the little knob at 9, or 12 if you want loud loud.I think if you turn the bass or treble up too high, that will also trigger the fans prematurely. So it you hear the fan, mess around with the volume & tone knobs.So what does it sound like? My original major in college was audio recording engineer, I used to do sound in a club, and I have done it for live bands, so I think I have decent ears.1) It’s “trebly” – so turn down the treble. This could also be me going from tube to solid state. Either way, turn the treble down a little.2) bass needs to be turned up a little.3) Soundstage is good. Instruments and voices appear in 3D space about like I would expect.4) It doesn’t sound grainy. That was my big worry.5) It’s loud AF! If you adjust it right – you actually are getting 50 clean watts per channel. So with me biamping the fronts, I am getting 100 watts to each of those and 50 to each of the rears. These are efficient speakers and I can drive them to earsplitting level with almost no distortion.6) The remote works, but only controls volume for the bluetooth, USB and card reader and FM inputs. It won’t control volume for aux or anything else that is plugged into the back with RCAs.7) When it does distort, it distorts the way that you would expect from a class-D (I don’t think it’s A/B for this price). So it’s like clean, clean, clean, then holy moly. It’s not linear.The fact they put in a loud fan and super ventilated the case tells me this is primarily intended for something like a retail store or a bar. My impression is that it won’t prematurely fail. I think it’s worth the money.

Love the separate channel colme controls
Replaced a standard amp/receiver with this to run a pair of indoor and a pair of outdoor patio speakers. With my old receiver, to listen to music outside the volume was so high inside, I’d have to turn the indoor speakers completely off. Now I can adjust the volume on each pair to the right level. The remote is a little cheapy but I only use it to turn it on and off. The sound quality is fine for what we’re using it for. The bluetooth works great. Using an old iPhone for music and it operates from outside on the patio with no issues. It’s really a great inexpensive option for running multiple speakers at different volumes.UPDATE: So I was noticing a lot of songs didn’t sound right. Originally thought I had bad speakers or wiring. After a lot of trial and error I finally figured out if you listen to a lot of classic rock where you have guitar, etc. only playing on one channel, you have to wire a set of speakers – 1 on A-B channel and one on C-D channel to get the true stereo sound (and then set the volume for each the same). Once I did that, it sounded so much better. Downside is you’re really limited to just 2 separate volume zones and you have to adjust 2 volume levels anytime you change them. That said, it’s still a good inexpensive option for what I’m using it for. Hope this update helps someone else having the same issue I had.

First of all, I don’t write reviews but I was so impressed with the value, quality and simplicity of this amp, here I am. I have a cottage with 7 in wall/ceiling speakers and a pair of book shelves. Four pairs of speaker connections and four independent volume controls are about as simple as it gets, no need to toggle through or turn off zones and I connected my sub woofer direct to the output jack. Easy Bluetooth connectivity and super crisp sound. It was important for me that anyone could connect their device and easily stream and control music and frankly, anyone can figure this Amp out in seconds, turn it on, connect to Bluetooth and adjust the volume of the four zones to suit. Simple base and treble dials also greatly appreciated. Simple, well designed and amazing value. Five stars.

Macht alles was er soll und sieht dabei noch gut aus. Mein Handy ist via Bluetooth verbunden und geht wunderbar auf meine Boxen. Das einzige was man echt nicht brauch sind die 1-2 unterschiedlichen Status Töne die immer kommen wenn man das Gerät einschaltet. Die Lautstärke der Töne scheinen fest eingestellt zu sein und das leider auf “ganz schön laut” …ich würde trotzdem wieder kaufen

Va benissimo. Ottimo rapporto qualità prezzo