[FourT6and2]

V281 tested at ASR if anybody's interested: https://www.audiosciencereview.com/...surements-of-violectric-hpa-v281-hp-amp.9331/

 

[Ichos]

As usually a part missing measurements set.
He is not using XLR out to test headphones , he states that XLR isn't giving more power and this is wrong as we know
and as we can read later on at the comments section by another user.
He even believes that the XLR is for convenience and not differential.
He didn't even bother to read the manual to find out that there are four amplifiers running into this
for a fully balanced out and double the power.
He measured power supply distortion and later on he discovered that the owner has lifted the ground jumpers
but he doesn't state that at the front page but later on at the comments.
As for the -2db at 20Hz i don't know , there is another measurement of the amp at another site and it is dead flat.

 

[Fegefeuer]

classic Amir then

 

[FourT6and2]

As usually a part missing measurements set.
He is not using XLR out to test headphones , he states that XLR isn't giving more power and this is wrong as we know
and as we can read later on at the comments section by another user.
He even believes that the XLR is for convenience and not differential.
He didn't even bother to read the manual to find out that there are four amplifiers running into this
for a fully balanced out and double the power.
He measured power supply distortion and later on he discovered that the owner has lifted the ground jumpers
but he doesn't state that at the front page but later on at the comments.
As for the -2db at 20Hz i don't know , there is another measurement of the amp at another site and it is dead flat.

I think there's only one set of power ratings on the spec sheet for a reason? They don't list power for SE vs BAL.

The high-pass is a head scratcher. But... look at the spec sheet from Violectric compared to V280. Different frequency responses.

The ground lift should have been addressed and then remeasured, I agree.

 

[FourT6and2]

Reading the manual, there's an interesting bit at the end about setting the output phone jacks to balanced or unbalanced. Haven't seen that before.

EDIT:
Oh I guess it's so you can run dual 1/4" plugs, one per channel, for balanced operation.

 

[Ichos]

The manual clearly states that the power output is for balanced out , both channels driven.
The single ended out is half that.

 

[FourT6and2]

The manual clearly states that the power output is for balanced out , both channels driven.
The single ended out is half that.

Yeah, read my response on ASR thread. I'm going to call Violectric USA and ask. Seems like his test is off in some places. Maybe that unit is broken or something.

 

[Ichos]

I think most of his tests are off in some places.....

 

[tan29844]

Anybody compared balanced V280 vs V281?

I know Violectric said that the amp are exactly the same, but I read somewhere that the V281 has a smoother treble and that V280 is a little more spacious.

Overall V280 is 90% of V281. People who heard both can confirm?

 

[Ichos]

If I remember correctly Mr. Reim has pointed somewhere that the V280 and V281 amp sections are exactly the same with 281 being slightly more powerful due to larger power supply.
So essentially the 280 is the stripped down version of 281 without bells and whistles.

 

[Fegefeuer]

Yep, that's how it is. V281 is slightly more powerful, has the relais volume option, the pre-amp functionality, more i/o.

With the US4+ we can see that they went with slightly less power here and there but 10db less noise overall, which is quite remarkable. Let's see if that trickles down in the future.

 

[Ichos]

A great new amp but very very expensive.
Maybe in the next wears it will be discounted.

 

[Fegefeuer]

Well, it's a different price bracket and there for a reason.

The Violectric line is alive and kicking and has an interesting future ahead, the price gaps will be filled accordingly, in every direction.

 

[Geezer Rock 001]

I luckily found the Violectric brand a few weeks ago when I bought a V100. I am very impressed and would like to try a balanced model.

Does anyone know of a V181 or a V280 that I could buy?

Thanks

 

[FourT6and2]

If I remember correctly Mr. Reim has pointed somewhere that the V280 and V281 amp sections are exactly the same with 281 being slightly more powerful due to larger power supply.
So essentially the 280 is the stripped down version of 281 without bells and whistles.

Weird, because the frequency response specs listed by Violectric are different.