Originally Posted by Wokei
Me review on Little Bear B-2 vs Topping NX1
Music used :-
Thieves Like Us - New Order
So Far Away - Dire Straits
High Fidelity - Daft Punk
Headphones Used - KZ LP2
Source - Sansa Zip Clip
Size - B-2 > NX1 ...twice the size in term of thickness of the amp. Height of NX-1( inclusive of volume knob)is about slightly more than 3/4 of B-2. Alternatively if you put NX-1 vertically against B-2 horizontal ...twice the size. Same goes for the blue LED light ..bigger in B-2 ...YES ...B-2 is twice in every sense of size.
Design - NX1 > B-2 ....defintely NX get me vote for its sleek design compared to B-2 . Also the side of NX1 is curved whereas B-2 is square and boxy. The surface of NX1 is clean where as B-2 have thin fine line cut into the front plate and back plate ...as well as the two side. B-2 with fine line. As you can see from me pic ...NX1 look very refined and even expensive lookin compared to B-2 which is very boxy, bulky and DIY if you put them side by side.B-2 actually look more like a laptop adapter ..LOL WITHOUT THE " big" VOLUME KNOB although both me amp have been given Carbon Vinyl treatment ...all in all they look good to me ..YMMV. ( oops pls see earlier post for pics without the carbon treatment)
Feature - NX1 > B-2 ....high and low gain switch at the bottom while B-2 does not have this feature. Also the two smaller knob at the side of B-2 are the screw knob for easy access when one wants to change the sound chip which solved the hassle of looking for screwdriver. Originally they came with screw and the two smaller screw knobs are included in the package.
Wokei ...now comes the sound part ...which Me am defintely not well versed with all the technical jargon to describe but me will try me best ...so dont bash me for the simplicity of words used.
Before me go into the details of sound ..bear in mind that B-2 comes with 4 chips ie. JR4556 ( came installed with the amp) and three other chips NE5532P & Burr Brown 2604 and 2134 . Don't know much about these chips ..so for the comaprison ...will be using the stock chip installed ..which is JR4556 against NX1(high gain ie.much preferred)
There are almost similar ...clean sounding ,not much colourisation and pretty good details and separation. But me would have to say B-2 do sound better to me ears because overall the music reproduction is much more clear and clean sounding when a/b at the same volume.
Hiss level and distortion level is also noticeably very minimal once B-2 is compared to NX1 at higher volume. At low volume ..me still find B-2 has lesser hiss and sounds much better than NX1.
Bass for both amps are good enuf for me ...punchy tight and good texture and body to it. The Fiio E11 which I used to have sounds more dark and over time becomes a bit tiring for long listening session. Me also can't decide which amp has better bass but as at now ...B-2 has slight edge against NX1 for me feel B-2 has better attack and not so much bass bloat especially on Thieves Like Us - New Order ....more controlled if that could be used to describe how me feel.
Mid and Treble .....me put them together as me feel they are very much equal. Both of these amps actually tick all the right spot for me ..bright but without the harshness.....vocal wise ...NX1 is wee bit up front while B-2 is more laid back. This is wokei but when play at higher volume ....me feel especailly when playing So Far Away ...Mark's voice feels a bit strained and starts to distort while B-2 vocal are very much in control when playing at high volume. Me find that when this happen ...me will switch NX1 to low gain to prevent this but still play at high volume.
Soundstage ..NX1 > B-2 ....both amp when at low volume ...me much prefer NX1 becuz of this ...wider and has more depth when playing High Fidelity - Daft Punk ....definitely one notch above B-2 . Its a different case when at high volume where B-2 definitely ecxel in handling high volume though the soundstage is smaller in width n depth but overall synergy is much more controlled and better details and separation ....also like what me mentioned above ...vocal stays very much intact where NX1 dont do so well at higher volume.
Overall ...me very happy with both these amps ...for the $ paid ...well worth it ...which do I like better....mmmmmm......hard to say ...both actually perform pretty damm well for me
....in term of portability and battery power (NX1) and B-2 is real boxy though the seller says battery power is good for 100 Hours (1800 mAh)... will update later
....in term of sound signature ...slight edge goes to B-2 for clarity/less hiss and ability to handle higher volume
....individually for bass,mid and treble ...I see very much similarity for both.
Me have not tried the other chips but in time ...will do so with some update ..cheers.
All pics of amp...after carbon vinyl treatment ...me latest fad...LOL