Erzetich Audio Perfidus - An Evil Class-A Headphone Amplifier :
It's fast! It's powerful! It's evil! It's Perfidus! This class-A headphone amplifier will blow you away. Literally. It is so fast and powerful that you need to handle it with care. But do not worry - we tamed it. With its super detailed reproduction and speed it will take your perception of music to another level. Classical orchestras will be more alive than ever and rock music will be beaty as it can be only on a live stage. Perfidus is your ultimate choice for your headphones amplification.
Behind the Scenes
This unit was called In-Cubus (yes, Incubus) in the first stages, because it was meant to be in a cube-like chassis: power supply at the top and amplifier circuit at the bottom. It didn't work out as expected because of a too strong interference from the power supply, no matter how well it was electro-magnetically isolated. Plan B: put it in the Bacillus' chassis, only longer. The amplifier turned out to be very precise and uncompromising towards bad recordings. In fact, you could hear all of the mistakes of those not-so-good recordings. Perfidus seemed a good name, also because it is contextually connected to the initial Incubus.
This was also the most complicated of our projects because, like Bacillus, we wanted to put it in as small a chassis as possible. That brought plenty of adjustments and thrown away PCBs. Perfidus seemed a suitable name again.
5 years warranty
WIMA high quality pulse input capacitors
class-a power amplifier
highest grade audiophile op-amp
Alps Blue Velvet volume potentiometer
gold plated RCA connectors
no output capacitors
on-board 2 x 15 V/15 W stabilized power supply
40.000 uF power stabilization capacitors
robust aluminum chassis
Headphone impedance: 8-600 ohm
Frequency response: 4 Hz-40 kHz, -1dB
THD (1 kHz): 0.007 %
IMD: 0.077 %
Power consumption: 15 W
Power supply input voltage: 230 V/50 Hz or 115 V/60 Hz
Dimensions (W x H x D): 110 mm x 64 mm x 280 mm
Weight: 1570 g
Character: Bright and quick