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STEREO HEADPHONES AMPLIFIER G109-S
The PHONE-AMP G109 was developped with the
target to enable highest transmission quality for
low- , medium- and high-impedance headphones.
Some features:

- Unbalanced inputs
- DC coupled amplifiers (switchable)
- PRE-GAIN: Overall gain switchable in 3 steps
- NF trammission band exceeds 150 kHz (-3dB)
- High-grade volume control ALPS RK 27 with
    optimized channel balance and lowest crosstalk
- Toroidal transformer, large smoothing capacitors
- Discrete amplifier design

The inputs are situated on the rear panel. They are
equipped with unbalanced gold plated RCA
connectors. Volume control is provided by a large
full metal rotary knob. Two headphones may be
connected via 1/4" jacks on the front panel.
The unit offers a built-in power supply with IEC/CEE
socket.
The complete case, front and back panels are made
of black anodizes aluminium.

Technical Data
  Balanced inputs: 2 x Cinch (L / R) with priority
  Impedance: 10 kohms
  Amplifier Channels: 2 (Stereo)
  Nom. input level: + 6 dBu
  Amplifier Gain: +8 dB
  ... with PRE-GAIN: -4 / +8 / +14 dB
  Command Lo Gain: -oo ... +0.8 dBr
  Command Hi Gain: +1 ... +50 dBr
  Frequency range: 0 Hz ... 150 kHz (-3 dB)
  Slew Rate: > 8V / usec
  Dynamic range: > 129 dB (A-wtd)
  Noise: < -101 dBu (A-wtd)
  THD+N: < -100 dB @ 10V in 100 Ohms (1W)
< -100 dB @ 18V in 600 Ohms (5W)
  Crosstalk: < -110 / -100 dB (@ 1 / 15 kHz)
  Max. output level: > 18.8 Veff in 600 ohms = 590 mW
    > 13.8 Veff in 100 ohms = 1900 mW
    > 10.7 Veff in 50 ohms = 2300 mW
    > 7.8 Veff in 50 ohms = 1900 mW
    > 3.7 Veff in 16 ohms = 410 mW
  Outputs: 2 x 1/4" phone jacks
  Clip-LED: Lites approx. 3 dB beyond clipping
  Power supply: 230 / 115 V AC 8 VA
  Dimensions: 168 x 49 x 145 mm (W x H x D)
  Case Material: Black anodized aluminium
  Finish Front/Back stainless steel