View Full Version : Review: Massive Audio Nano Bit BX2

11-12-2012, 08:18 PM
First off, let me start off by saying I was approached by Massive Audio to do the review because of my previous review on the Nano's. The Nano's were disappointing to me and Massive was pretty sure that the new Nano Bit would be better I was approached about it I was eager for the opportunity to do it!

My system consists of the following:
2005 Nissan Altima SE-R:
Source: Kenwood Excelon DNX9960
Line Driver: Tru Tech SSLD6i
Front: Dynaudio System 360
Front Amp: Aura RPM2300
Rear doors: Blaupunkt 8" Triaxial in rear doors
Rear Deck: Infinity Kappa 100.9W 10" subs in the rear deck
Rear/Sub amp: Aura RPM 2300 Powering the subs

For reference here is the review I did on the Nano's: Massive Audio NX4 and NX5 - My review - Car Audio Classifieds (http://www.caraudioclassifieds.org/forum/car-audio-product-reviews/102653-massive-audio-nx4-nx5-my-review.html).

On to the review!

I ran the amp on all sets of speakers in the car. I had it hooked up to the Blaupunkts, I had it hooked up then to the Dyns, and finally to the Kappa's.

Here it is installed:


After running through all three, I am extremely surprised at the difference between these and the Nano's I had.

The blaupunkts sound great with the BX2. Good midbass, good midrange and good highs. Very composed and good cone control on the woofer. I was impressed with the way they sounded and the crossover worked exactly how I needed it to. I had volume at 1/2 on the Kenwood and gain never passed 1/2, they were driven easily to the point of distortion.

On the Dyn's the amp was very composed and controlled. It was unlike most class D's I've ran on the Dyn's before. Much more sound quality, great midbass very solid. It did exactly what I wanted it to do, reproduce sound without adding it's own soundtrack. There was good punch, and good power to the power hungry Dyn's.

The big test for me was for the output from the amp on the subs. I was going into it expecting the subs to be dying for more power. I switched both subs to 2 ohm and ran them in series. Put the gain at 1/2 way on the amp, and went 1/2 way up on the volume and this amp was IMPRESSIVE! I was really not expecting the output that I got from the amp wired up to the subs. The subs were again very well composed, with no soundtrack added to the subs.

Based on my ear I would say that this amp is clearly capable of producing the rated power and deliver it without excessive distortion.

I am very pleased and do believe that these Nano Bit amps are a far step above the Nano's. The amp I received had a chip in it as you can see in a couple of the pictures, also the mounting tabs are a little close to the amps screws and when mounting I can see the screws used to mounting scratching the amp screws if you are not careful

The feature list is very nice on the BX2, specs are nice too (this is all on paper).


Nickel Plated Connectors
SMD Hi-Fi Audio Components
Dual Sided Mill Spec PCBs
Noise Rejection Circuitry for ultra clean output
Hi-Level Input for OEM Integration
Auto Sensing Music Turn On with Remote Out
LPF / FULL / HPF Crossover frequency selections


1 Ohm RMS N/A 2 Ohm RMS 240W x 2 4 Ohm RMS 120W x 2 4 Ohm Bridged 480W x 1 Input Level 0.2~6v Frequency Response 30~45KHz LPF 55~275KHz SubSonic Filter(HPF) 55~275KHz THD at 4Ohm Load 30% Rated Power <0.3% S/N Ratio >90dB BassBoost 0~12dB (45Hz) Best Efficiency @ 4Ohm >80% Minimum Load 2Ohm Optional Remote N/A ShortCircuit Test @ max power Pass Overheat protect temp. Protect @ 75C/167F Component & PCB SMD parts / double side FR-4 pbb Height 1.6" Width 5.0" Length 6.3"

Nice little package, like previous Massive Amps.http://i178.photobucket.com/albums/w254/nismos14us/Nano%20Bits/1502B052-9C53-4526-A85C-BE8B12664B27-5287-0000029EB5D3AA90.jpg



Tiny as advertised:


Terminals and Controls


Amp rating scale:

Features: 9/10
SQ: 10/10
Output vs Rated: 10/10
Build Quality: 8/10
Ease of Use: 8/10
Value: 7/10
Total: 52/60

11-12-2012, 08:36 PM
me no likey the power connections.

11-12-2012, 09:04 PM
"THD at 4Ohm Load 30% Rated Power <0.3%"

seems like a strange statement, cannot say i've seen it before. So would this be considered a high THD?

11-12-2012, 09:09 PM
How much was it?plenty of power for the subs?

11-12-2012, 09:32 PM
How much was it?plenty of power for the subs?
It was sent to me for testing at no cost.

Yes, the subs were slamming away. I thought I would get a drop off going from the Aura to this, but if I did it was minimal.

11-12-2012, 09:41 PM
nice I love how small it is lots of potential hiding places!