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Making further progress, TOPPING’s new flagship amplifier will be launched in late May!

B200 is the basically an LA90 Discrete that's optimized for bridged configuration only. Gain structure and values are re-tuned for lower noise. PCB layout was tweaked a little to reduce magnetic field coupling in the chassis slightly for lower THD.
Is it possible to bridge 2 of these B200 amplifiers together?
I need more like 300W to power just one single driver.
I plan to swap the polarity on one of the XLR inputs into one of the B200's, then link the two output -ve terminals of both amps together,
and then use the +ve terminals of both amps (now out of phase) to drive the speaker.

Do you see any problems?
 
Do you see any problems?

Yes - the amps are already bridged internally. The black terminals are not ground or 0V, they are already the inverse of the red terminals.

Connecting two driven terminals together might end very badly depending on how the internal ground/0V is referenced between the two amps.
 
Yes - the amps are already bridged internally. The black terminals are not ground or 0V, they are already the inverse of the red terminals.

Connecting two driven terminals together might end very badly depending on how the internal ground/0V is referenced between the two amps.
Good point, perhaps finding the internal ground/0V and common that would be necessary as well.
 
Good point, perhaps finding the internal ground/0V and common that would be necessary as well.
No, that would defiantly cause a short circuit when you connected the two black terminals together. Remember you have inverted the input to the amps. That means the black of one amp is the invers of the black of the other amp. If the amps grounds are connected together - or just have a relatively low impedance between them - either via the power supplies, or via a connection you make, you are then shorting those inverted signals together.

In fact - thinking about it - the two amps ground will be made common by the ground on the input wiring. You cannot bridge two of these amps together without releasing the destructive magic smoke.
 
I get it, because they are already bridged - so its like double bridging them.
That's going to be a big mess then.
So don't try it anyone!!
 
Wish we could get more details on B100; would love to know MSRP and what class the amplification circuit is (Class AB? Class D?). I am pretty sure it is sufficient power to drive my LS50 Metas.

-Ed
 
According to shenzenaudio the release for b100 will happen soon. Likely same technology as b200 but optimized to be clean to the max.
 

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Bridging 2 Pairs of B200 would cost you USD 2.400,—
What about Bridging two Topping LA 90 discrete?
It’s 280 absolute ultraclean watts at 4 Ohm - the ultraclean part of B200 ˋs (unbridged) watts may be 140 Watts.
And shenzenaudio has a special offer for the next 38 hours!!!
It would cost you just USD 1.406,— / pair.





Yours,

Thorsten
 
Bridging 2 Pairs of B200 would cost you USD 2.400,—
What about Bridging two Topping LA 90 discrete?
It’s 280 absolute ultraclean watts at 4 Ohm - the ultraclean part of B200 ˋs (unbridged) watts may be 140 Watts.
And shenzenaudio has a special offer for the next 38 hours!!!
It would cost you just USD 1.406,— / pair.





Yours,

Thorsten
The B200 can not be bridged. See some posts before you. So there is no use to spend USD 2.400 to try to bridge them. A very expensive puff of smoke :).
 
The B200 can not be bridged. See some posts before you. So there is no use to spend USD 2.400 to try to bridge them. A very expensive puff of smoke :).
Bridging 2 Pairs of B200 would cost you USD 2.400,—
What about Bridging two Topping LA 90 discrete?
It’s 280 absolute ultraclean watts at 4 Ohm - the ultraclean part of B200 ˋs (unbridged) watts may be 140 Watts.
And shenzenaudio has a special offer for the next 38 hours!!!
It would cost you just USD 1.406,— / pair.
Its an idea, I will looking to it but not sure there would be a doubling of power output if they were bridged?
I wish Topping would produce something more powerful than an amp that struggles to get 200w because the distortion is going to be high at that power.
Something like a B300 would be nice, or else I'll buy the Outlaw 2220 mono blocks which has 300w and a built in PSU and is cheaper anyway.
 
Its an idea, I will looking to it but not sure there would be a doubling of power output if they were bridged?
I wish Topping would produce something more powerful than an amp that struggles to get 200w because the distortion is going to be high at that power.
Something like a B300 would be nice, or else I'll buy the Outlaw 2220 mono blocks which has 300w and a built in PSU and is cheaper anyway.
Yes, also good choice, but if you look at the LA90 discrete Test of @amirm you will see, it nicely quadruples the power if bridged (so clean 279 Watts instead of clean 70 Watts) - it is the theoretical maximum of what you can win because of bridging! The LA90 discrete is a very, very good amp! But who knows about its reliability?
 
Hello! I have a pair of kef r3 meta paired with topping pa7, i m thinking to upgrade my amp to this b200 class ab or hypex nilai class d and i don't know wich one to choose. Some help will be nice! Thanks
 
Hello! I have a pair of kef r3 meta paired with topping pa7, i m thinking to upgrade my amp to this b200 class ab or hypex nilai class d and i don't know wich one to choose. Some help will be nice! Thanks
First - why the upgrade? What are you expecting to improve? Because unless you are needing more power than the PA7 can deliver, or some other feature, then you are unlikely to get a benefit.
 
First - why the upgrade? What are you expecting to improve? Because unless you are needing more power than the PA7 can deliver, or some other feature, then you are unlikely to get a benefit.
I m listening on moderate volume levels, but i m thinking about better sound, like fuller midrange, fuller bass, bigger soundstage etc. I making a mistake? Pa7 sounds good, very clean, that s why i m asking if it s worth upgrading or not
 
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