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Battery   [ SOLD OUT ]
Compact Headamp Unit

The stand-alone compact unit
that extracted the high-quality

head amplifier built in the R-Zero
can operate best sound wirelessly
on an acoustic guitar equipped

with a passive pickup


This Battery is 2-channel Compact Head Amplifier Unit that can achieve high-quality buffering. 

It has mounted the built-in the R-Zero head amp.


So it can express the sounds equivalent to the R-Zero sound quality with minimum of functions for saving power through a 9V battery drive and compact lightweight aluminium housing.


  • Lightweight & Compact size

  • Attached Belt Clip for fixing to the strap or waist belt

  • Two Monaural Outputs and Tip / Ring each Parallel Output

  • Produce the sound with no distortion from the distortion-free power by 9V battery drive only

  • Best-in class dynamic range and flat frequency characteristics

  • Support guitars mounted any type of pick-up system by -18dB Pad

  • Support the Small Electret Condenser Microphone by the equipped Phantom Power

  • Usable  in wireless system


----- INPUT -------------------------------------------------------------------------------

Stereo (dual) Jack
  Ach (Tip) gain range : +6dB to +36dB
  Bch (Ring) gain range : +6dB to +36dB
  Input impedance : 2MΩ fixed


----- OUTPUT --------------------------------------------------------------------------

Dual output (stereo jack)

Tip / Mono2 output

Ring / Mono1 output


----- Power Supply ---------------------------------------------------------------

006P Battery

   Alkaline batteries or
  Lithium type rechargeable battery

   *TOSHIBA Impulse is recommended


----- Characteristic -------------------------------------------------------------

Frequency response

     10Hz to 25KHz within ±1dB
Noise ratio

     under -85dB (IEC-A)
    Distortion under 0.05% (1KHz)


----- Dimensions & Weight --------------------------------------------

Unit size

     84mm (W) × 112mm (D) × 24mm (H)

     *exclude the protrusion
Shipping package size

     245mm (W) × 180mm (D) × 125mm (H)


     *exclude the battery weight

Shipping package weight


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