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Product Review - HomeTheaterHifi.com
https://hometheaterhifi.com/volume_11_3/aural-audition-class-a-ref-headphone-amp-8-2004.html
Aural Audition Class A Reference Headphone Amplifier. August, 2004. Jason Victor Serinus. Specifications. Closed Loop Gain: 20 dB. Closed Loop Rise Time <0.2uS. Close Loop Output Impedance: <2 Ohms. Open Loop THD <0.05% Measured at. 1 kHz/3 VRMS.
Class A headphone amplifier | MyElectrons
https://myelectrons.com/opamp-mosfet-headphone-amplifier/
Still the little OpAmp is not the best choice for driving 30 Ohms headphones. It cries for a current amplifier. Here we'll use easily available IR MOSFET's. Provided the complementary source followers idling at some 100 mA it will stay in pure class "A" while working on 30 Ohms or any other load with higher impedance. The creation. OpAmp = OPA2134
A Battery-Powered Class A Headphone Amp - audioXpress
https://audioxpress.com/article/a-battery-powered-class-a-headphone-amp
August 18 2016, 02:00. This project is based on Erno Borbely’s EB-602/210 single-ended pure Class A amplifier and is capable of driving headphones between 32 and 600Ω. It consists of two identical but separate amps laid out on the same PCB. The schematic is the same as Erno’s extremely popular hybrid tube/MOSFET line amp, published in Glass Audio 1/98.
6moons audio reviews: Aural Audition
https://www.6moons.com/audioreviews/aural/audition.html
Today's unexpected discovery was one of 'em. I'd never heard of Classified Audio Video Inc. of Jacksonville/IL before. Ditto for their brand Aural Audio or their no-holds-barred Class A headphone amplifier called the Aural Audition. Pretty suggestive name if you ask me - Aural Audition. How to resist?
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