Rarely seen on Audiogon, we have the 2nd generation Aural Audition Class A headphone amp with 2 inputs. This unit is in excellent shape and works and sounds great. For more info please email or phone Steven at 404-373-4279. www.playhouseaudio.com.
Designed in Germany by Ernö Borbély, this unit has a large volume control with 24 positions. It comes in a very substantial and beautifully finished aluminum case and weighs in at 17 lbs.
The Audition is fed by an internal dual power supply rated at 200mA which features dedicated windings from fully potted mains transformer specifically designed for this amplifier. This proprietary power supply is a very high quality, wide band and low noise PS/regulator that also incorporates fast recovery diodes in the power supply and only FETs (JFETs and MOSFETs) in the regulators. Maximum input voltage is ±45V and maximum output voltage is ±40V. The headphone amplifier module is an ALL-FET line amplifier. Only FETs (JFETs and MOSFETs) are used as active elements in the amplifier. The resistors are all high quality Vishay-Dale and Caddock. All electrolytics are Nichicon FINE GOLD MUSE and the compensation caps are MICA or polystyrene. Two amplifiers are laid out on one board. The PCB is Teflon and the traces on the Teflon board are 70 microns in thickness. The amplifier module is biased at 80mA that facilitates "Class A" operation driving loads between 32 and 600 Ohms. All of the internal signal wiring is LEMO copper Litz that is also silver coated. The stepped attenuator is the DACT CT2-10k attenuator.