Customer Ratings & Reviews

Great value

I highly recommend this product, especially for clean mids and highs...

PROS... the unit delivers clean sound and no type of engine noise, so far reliable.

CONS... the only con if it matters is the size of the unit. Pretty big amp for the purpose of mids and highs.

Best amp

By far one of the best amps I have ever owned. Has all the features I needed and didn’t break the bank.

MB Quart ZA2-1000.4 (ZA21000.4)

I am using these amps to power my front and rear speakers in my 2004.5 Dodge Ram 3500 Quad Cab. I have them running in a 2 Channel configuration and split for the right and left sides. These amps rock out with the best of them! The sound is clear and bright. I ran these briefly without my crossover and having the LPF/HPF was very nice. No worries about my components getting the wrong signals! The only issue I have is that these amps do generate a lot of heat and get very warm very quickly. Other then that, I would highly recommend these amps.

By Anonymous on June 4, 2018 Verified purchase

MB Quart ZA2-1000.4 (ZA21000.4)

I'm still playing with this amp but it sounds good pushing 4 Alpine type R coaxial speakers with a 125rms there is a lot of ability one the amp it self for controlling the sound production. This is not my first MB amp but it keeps with the bar the products have keep for it's self.

By Anonymous on May 27, 2018 Verified purchase

MB Quart ZA2-1000.4 (ZA21000.4)

Alot bigger then i expected so make sure you have space. amp sounds great only complaint would be the knobs look sunken in and not seated properly

By Anonymous on May 23, 2018 Verified purchase

Good Amp for the highs

After adjusting the settings I was pleased at the subs quality the amp produce. I recommend this amp for those who are looking for a budget amp that produces good sounds.

So far so good!

Setup with 4 Pioneer’s speaker and Kenwood Excelon din cd player. Free Belva Amp Kit BAK44 is a big plus. Couldn’t be more happier. Solid performance, musically good. Need to pay more attention on amp setting to optimize sound quality. Overall it is a very satisfying product.

Sounds great in 2014 Toyota Tundra Crewmax running 2 sets of pioneer TS-A1606C components.

Have this amp running 2 sets of Pioneer TS-A1606C components for the past 3 weeks. Sounds amazing. Speakers will handle 300W and this will push 125W per channel at 4ohms. Running amp off EQ. to clean up the stock radio signal on a 2014 Toyota Tundra Crewmax. Can't believe how well this amp pushes the pioneers at this price range. I was shooting for SQ and I am not disappointed.

By Brian on January 1, 2018 Verified purchase

MB Quart ZA2-1000.4 (ZA21000.4)

I recommend this amp. It's powering my 5 1/4 fronts and 6x9 rears. Sounds great. No issues at this time

So Far So Good - 1 month

I have this amp pushing a pair of Polk 6.5 MM1 Components and a pair of Kicker KSS670 Components. They sound amazing. Crystal clear highs and surprisingly strong bass. I do not use a separate sub woofer as the components reproduce as low as 35Hz - low enough to feel it.

By Anonymous on July 27, 2018 Verified purchase

Great product

I bought this to power my 4 6X9 speakers and it works great. Instructions are straight forward, easy to use. I’ve never installed an amp in my car before and this was a breeze.

Great valve.

So far so good. I needed to replace my 300 watt 4 channel with something bigger. Has not cut out due to heat yet. Very happy with this amp

Great value

The amp made my components sound loud and clear and was more than enough power so I had to set my gains down til I got it properly tuned. Will recommend to anyone, decent product.

Good Amp

The amp is great and has a beautiful design to it. I’m using it with my JL Audio 12 Inch Sub and it sounds great.

Nice Amp

Nice amp. I had a Rockford fosgate amp and after installing this amp, the sound sounded so much cleaner or clearer. I really like this amp and I would buy it again.

Great amp at a great price!

I have this amp running four 8" Rockville tower speakers and sounds great! Would definitely buy again. Amp is pretty big in size so make sure you have room to mount it first