Cute Battery
The Battery Cute Headphone class A/B Amplifier is optimised for a wide range of load impedances, suitable for most types of headphones from Etymotic ER4P to Sennheiser HD-650 (300 ohm). This high bandwidth, extremely low noise design (lower than -107db) yields greater than 105 dB of dynamic range and exceeds the capabilities of the human ear, ensuring it will handle any difficult headphones.

Two gain settings, selectable by a convenient rear panel switch, allow for quick and easy optimization for high or low efficiency headphones. With user changeable opamps and Shunt/Series type input volume control to suit different tastes. Other features include Short Circuit and Thermal protection.

Front Panel: Headphone output via 3.5mm socket and volume control.

Back Panel: Left and right analogue audio input via RCA, input gain switch, power switch and power input socket.

Specifications
• 24ps transistors per channel
• Current feedback circuit
• Low distortion
• High speed
• Class AB / DC amplifier; coupling capacitor less
• Extra low output resistance (Zo less than 0.05 ohms)
• High current capacity (500mA per channel)
• 6Hz~300Khz ,-1dB at 100 ohms loading
• Very low noise; -105dB(A)
• Max. output 6Vrms
• Internal gain control switch (Low/High)
• Volume control switchable to Series or Shunt
• Size: 11cm (L) X 8cm(W) X 5cm(H)
• Weight: 500g
• Colors: Red, Blue, Gray, Purple