Violectric HPA V280 - balanced headphone amp - impressions and discussion thread
Apr 5, 2021 at 7:16 PM Post #916 of 1,098
Well it sounds like the old guards cannot be replaced easily. Am glad I have the V280.

Also, the new V340 does not have XLR input vs the V280. They only have it on the V550.
 
Apr 5, 2021 at 7:26 PM Post #917 of 1,098
For the low impedance hp that I use, I leave the dip switches at the null setting 0dB. For the high impedance hp that I use: Auteur ZMF, 0dB; Beyerdynamic DT880 (600 ohm), +12dB; Beyerdynamic DT1770 (250 ohm), +6dB; Sennheiser HD600 (300 ohm), 0dB.
Interesting. I set mine on V280 to be -12db so that I have more headroom on the vol pot. Sound-wise; to my ears; not much difference regardless of dip settings.
 
Apr 5, 2021 at 9:04 PM Post #918 of 1,098
Well it sounds like the old guards cannot be replaced easily. Am glad I have the V280.

Also, the new V340 does not have XLR input vs the V280. They only have it on the V550.
The lack of XLR input on the V340 is really unfortunate. When music signals go through my Mojo Audio EVO Mystique DAC to the V280 via XLR cables then to hp via XLR cables, the dynamic range and soundstage are outstanding.
 
Apr 6, 2021 at 2:14 AM Post #919 of 1,098
Interesting. I set mine on V280 to be -12db so that I have more headroom on the vol pot. Sound-wise; to my ears; not much difference regardless of dip settings.
Same here for HD 600 and 800.
 
Apr 6, 2021 at 6:20 AM Post #920 of 1,098
Hello :)

I dont have yet the cable with plug XLR, but I have connected the qutest(DAC) by RCA to the amplifier (unbalanced connection), if I connect the Headphone with XLR cable to the violectric,
1. Will the connection work with the plug XLR?
2. Will I benefit from this type of connection?

Thank you
 
Apr 6, 2021 at 10:19 AM Post #921 of 1,098
Hello :)

I dont have yet the cable with plug XLR, but I have connected the qutest(DAC) by RCA to the amplifier (unbalanced connection), if I connect the Headphone with XLR cable to the violectric,
1. Will the connection work with the plug XLR?
2. Will I benefit from this type of connection?

Thank you
XLR input on the back makes no difference it isn’t even true balanced.

XLR output on the front to the headphones makes a huge difference! It doubles the output and gives you one full amp per ear.

keep your qutest (great setup you have!) on rca and make sure your headphones are wired for Balnced XLR. (Unless the headphones are very sensitive, like iems, grados, B&W)

Senns and ZMF are absolutely brilliant balanced out of the v280!
 
Apr 6, 2021 at 10:35 AM Post #923 of 1,098
Even though I have the qutest to violectric connected by RCA, does the Heaphone with the XRL plug work on Amplifier Headphone Output?

I will buy the cable in a few days.
Of course and the amplifier is designed as to get the best out of the balanced output no matter the input connected.

Single ended input has priority with this amp.
 
Apr 6, 2021 at 11:13 AM Post #924 of 1,098
I am reading the question as "does the XLR output work when RCA input is used?"

If so the answer is yes. Any input will be converted to balanced and all front outputs are available for any input.
 
Apr 6, 2021 at 2:02 PM Post #925 of 1,098
Hello :)

I dont have yet the cable with plug XLR, but I have connected the qutest(DAC) by RCA to the amplifier (unbalanced connection), if I connect the Headphone with XLR cable to the violectric,
1. Will the connection work with the plug XLR?
2. Will I benefit from this type of connection?

Thank you
Imo the balanced make a difference. Hard to say what but it is a bit like new and more powerfull batteries.
Sounds strange but there is more power. Not the power is the profit, or it is, but more the spare power.
I think.
What am I saying? 🤔

What interlink do you use between the Qutest and the V280?
In my, same, set up I noticed a very big difference between some.
Tried MIT, Siltechs, John van Gent and others. Just like in my favourite shop I finished Crystal Cable.
Just curious.
 
Apr 6, 2021 at 4:31 PM Post #927 of 1,098
What interlink do you use between the Qutest and the V280?
In my, same, set up I noticed a very big difference between some.
Tried MIT, Siltechs, John van Gent and others. Just like in my favourite shop I finished Crystal Cable.
Just curious.

since he is using a qutest, it would make no difference. Qutest only has rca, and chord dacs are always going to prefer running single-ended for most transparency.

XLR in on the v280 gets converted to single-ended immediately, so it does not benefit from balanced. However, some sources my benefit from XLR out, which is probably why they put XLR in on the 280
 
Apr 15, 2021 at 10:50 AM Post #928 of 1,098
To all considering the v280, spring for the v281 if you can find one.
 
Apr 15, 2021 at 10:54 AM Post #929 of 1,098
Apr 15, 2021 at 10:57 AM Post #930 of 1,098
Ha, balanced outs and twice the power... ok.
 

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