FSA Class-A Headphone Amplifier CUTEBEYOND

FSA Class-A Headphone Amplifier CUTEBEYOND Cute Beyond is a kind of Pure Class-A Headphone Amplifier with low noise/low distortion features. Adopting both Series and Shunt types can let the users select their ideal type of Volume Control. High electric current output can pretty much drive headphones of any impedance. OP amplifier can be changed by yourself to turn the tone. Using Cute Curve can easily make you enjoy high-quality and awesome sound. Amplifier Structure: Coupling capacitor less, Single-End with Class-A Power Structure: Virtual-Ground power supply Gain Control: Low (attenuation 20dB) / High (normal) Volume Control: Series / shunt mode selectable Headphone Impedance: 32 ohm to 600 ohm Circuit Protect: Output short / over current protect Main OPAmp: TI – OPA2604 Servo OPAmp: TI – TL072 Specifications: Audio Performance: (1kHz sine wave, 2Vrms output) Frequency response (From 40Hz to 15kHz): 40Hz +0.01dB, 15kHz -0.02dB Noise level (1kHz, A-Weighted): -104.7dB Dynamic range (1kHz, A-Weighted): 104.6dB THD%: 0.0018% Stereo crosstalk: -90.0dB Connectivity: Line Input: 1 of RCA jack Line Output: 1 of 6.4mm phone jack