This class A, Single Ended Circuit amplifier is optimized for a wide range of load impedances, suitable almost all the 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, ensuring to handle any difficult headphone.

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

Scopy of supply
 Cute Beyond
 
 DC24V 0.5A power adapter
 
 User manual
 
 Warranty card
 
 Wrench