Topping B100

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#141
I'm not skittish about adjectives and subjective impressions so I'll say this: The B200 sounds excellent. I think the pair are worth more than the asking price. Very smooth presentation, laid back in the mids, grain-free, all the 'transparency' you need. I would never have expected this level of refinement from Topping and frankly I think their low-cost ASR-based measurebator reputation will hurt sales.

The B100 is more typical of the Topping house sound - leaner, more clinical, gobs of detail. Still pretty smooth though. Not unlike a Mod-86.

I'll be parting with my B200/B100s soon but only because I already have a Mod-86, a Dartzeel clone, and TPA3255 builds out the wazoo. But if I only had the B200 I wouldn't miss the rest. Topping has come a long way and you can sense they're trying to pivot to 'audiophile' territory i.e. gear that also sounds great not just measure great.

My .02.
 
#142
^ Interesting. Thank you for posting your thoughts. If I'm not mistaken, you'd take the 200s over the 100s. The 200s may suit my needs a tad better, but I assumed (clearly incorrectly) that the 200 was the same topology as the 100, but just "more power", which is why I got the 100s for this particular situation.

I didn't think the 200s would have a different sonic character ("smooth / laid back" vs. "clinical", particularly given the ultra-low distortion / performance characteristics of both. I guess I should have read a bit more... I will look into the 200s (more than a cursory glance at the marketing page). Given that I consider the 100s a darn good value for $ (if they last a couple years or more)... and if the 200s are an improvement sonically with the headroom I need for one application... they could be a contender.

Thanks!
 
#144
ItsAllInMyHead said:
I didn't think the 200s would have a different sonic character ("smooth / laid back" vs. "clinical", particularly given the ultra-low distortion / performance characteristics of both. I guess I should have read a bit more...
Click to expand...
Please note that in your system the 100s might sound great instead (and/or vice versa), no one can tell beforehand, only your ears after you put it in your system and finally listen to it in a relaxed session, in my humble opinion. 🙂
 
#147
i am waiting for measurement from you guys for your B100 and B200.

For me its is really "unknown" by Topping to get just 9Watts idle consumption and a lot of power with single supply voltage.
----> It looks like Class D

i never build a amp (BJT, MOSFET) with single supply and lot of power.
Do we have here an example?

kr
chris
 
#148
Ah...now i remember

maybe the APEX AX6 (Retro amp), but under steroids 😉

for 100WATT into 8R we need about 29Vrms so it is about 41 Vpeak. with sag of 6-7 Volts we need a supply about 48V times 2--> 96Volt supply
 
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#149
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#150
example, discrete power amp
single supply 75V, 100W/4R, output capacitor, overall power consumption at idle 3W (one channel), no emitter resistors, output transistors idle current 3mA

H-ENG-75V THDvF 1W 10W 50W 4R LCH BW90K.png
 

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#153
chermann said:
Ah...now i remember

maybe the APEX AX6 (Retro amp), but under steroids 😉

for 100WATT into 8R we need about 29Vrms so it is about 41 Vpeak. with sag of 6-7 Volts we need a supply about 48V times 2--> 96Volt supply
Click to expand...
Oh my fail..
At B100 it is recommended 100W/4R so we need just 20Vrms , peak is about 28,3Vpeak and with 6-7Volts PSU sag it is 35Volt one half. --> single supply adaption means finally 70V psu so that is not a problem for a Retro amp.

B200 is written 200W for 4R/8R, so for 8R and 200Watt we need 40Vrms and about 56,6Vpeak--Sag 7Volt--> 64Volt-> so for a single supply amp means 128Volt rail😱....jesus!..
 
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#157
I can't find any information to confirm that the Topping B100 and B200 are different designs. They could be, Topping hasn't said much. From what I can see they are AB biased into B, because the heat sinks are minimal for the B100, especially. I'm curious if they would sound different and be reliable in my application.
I have heard class B that sounded good, so I don't have a problem with that. I was going to use the B100s topper the two treble units (one covering from 2700 to 3200, the other 3200 to about 11k) in my Diy open baffle 6 way. Both are about 92 db efficient. It seemed the B100s would have enough power for that. Mini-DSPs provide most of the crossover work, except at the top.
I haven't liked the sound of TPA amps, although class D is great for bass. Recent class D is sounding really good, but for my power requirements I don't need all those watts. Also, I'm using a diy EL84 amps for the mids, from 900 to 2700 for that midrange warmth, although this last part is bit off topic.
 
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#160
But 8 ohms fixed is unrealistic load. There is no multiway passive speaker with impedance remaining above 8 ohms in all passband, and even many raw woofers with 8 ohms nominal impedance actually have minimum impedance dipping below that numbers.

So here we have a perfect product catering for uninformed ASR minions with their obsession for 5W SINAD number and cheap construction with an excuse that crest factor of actual music is typically much smaller than sin wave, so there is no need for continuous signal testing
 
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