Cute Curve

"Cute Curve"- Class B - Push/Pull - Headphone Amplifier 
This class B, Push/Pull 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 -104,7db) yields greater than 104,6 dB of dynamic range and exceeds the capabilities of the human ear, ensuring to handle any difficult headphone. The Cute Curve class B-Push/Pull design is offering extreme clear sound, but with much more power then a Class A amplifier. The Cute Curve is therefore more suitable for "music-lovers" (read non-analytical listeners), and people that need powerful sound with capability to feel the base (if you want). The Cute Curve serves best for musicians/studio-use/DJ's with (closed) headphones that need to be driven at adequate volume, due to high surrounding noise. However, do not understand wrongly : the Cute Curve is also perfect for the audiophile that just loves a bit more power.

Features

Cute curve is a kind of Class-B Headphone Amplifier with push-pull structure, and low noise/low distortion features. Adopting both Series and Shunt types, it let the users select their ideal type of volume control. The high electric current output can pretty much drive headphones of any impedance. OP amplifier can be changed by the user to tune the tone. The Cute Curve will offer you high-quality and awesome sound.

Specifications

• Amplifier Structure : Coupling capacitor less, Push-Pull with Class-B
• Power Structure : Virtual-Ground power supply
• Gain Control : Low (attenuation 20dB) / High (normal)
• Volume Control : Series / shunt mode selectable
• Headphone Impedence : 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, offering a Line-out or Pre-out function