Things To Know - Violectric HPA V280 User Manual

With a pin-out which is kind of common since the days of good old AKG K1000.
Not according to the general XLR standard but also common is that the female
connector is attached to the devices while the male connector is attached to the
headphone cable.
A question left is which headphones may be modified easily for balanced
operation:
Generally spoken nearly all headphones with cables attached to both ear
pieces.
For most headphones with the cable attached to the left earpiece there are more
efforts necessary.
Here a list of those headphones where modifications may be applied or not:
AKG: K701 possible
AKG: K702, K712, K812 not possible !!
Audeze: possible for all headphones, partly equipped with balanced connectors
ex works
Beyerdynamic: T1, T5, T5P possible
Beyerdynamic: DT 880 not possible !!
HiFi Man: possible for all headphones, partly equipped with balanced
connectors ex works
Sennheiser: HD 600, HD 650, HD 700, HD 800 possible
Ultrasone: Edition 8, Edition 10 possible

Things to know ...

Why makes it sense to make such huge efforts ?
A headphone amplifier is a device designed to condition audio signals with
regard to the very specific requirements of headphones. This doesn't sound too
spectacular at the first glance and can be achieved relatively easily. As with
many things however, the devil is in the details and much more effort is required
to design one amplifier for all current headphone models.
Headphones per se are quite diverse, and there are two essential parameters:
impedance and sensitivity.
In general, headphones with higher impedance can be regarded as less
sensitive than headphones with low impedance (which is not generally true, but
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