Cute Beyond

Cute Beyond - Class A - Headphone Amplifier 
This class A, Single Ended Circuit amplifier is optimized for a wide range of load impedances and suitable for almost all headphones. This high bandwidth, extreme low noise design (lower than -104db) yields greater than 104 dB of dynamic range and exceeds the capabilities of the human ear. The Cute Beyond can handle any headphone, also the more difficult high impedance models. The Class A design gives you extreme clear sound and is most suitable for "reference style" headphones.

Features

The Cute Beyond is a pure Class-A Headphone Amplifier with low noise/low distortion features. Adopting both Series and Shunt type of volume setting, the users can 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.

Specifications

• 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
• 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

System Requirements

Can be used with any equipment, providing a nromal Line-out or Pre-out function