Maxon SD-9 Sonic Distortion

The SD9 has become a legend since it came out in 1980. Wide variety of distortions, from punchy overdrive to striking fuzz, with a complete frequency response, minimum tone coloring and a huge 42dB gain. When most overdrive and distortion pedals have circuit that either cut or boost high frequencies, the SD9 uses a circuitry that cuts or boosts low frequencies.

Features:

• Bright distortion with precise picking response over the entire frequency range.
  Sweet harmonics accentuate high-end tones.
• Easy-access, no tools battery compartment.
• AC jack to connect optional AC adaptor for long hours of continuous use.
• True Bypass Switching lets your instrument's signal pass through a non-electronic bypass line
  when the effect is disengaged, feeding your amp with direct, unaltered signal from your instrument.
  Low noise mechanical switch is used for effect/normal switching.
• LED to indicate effect/bypass and battery condition for trouble-free performance.
• MADE IN JAPAN

Specifications:

• Input Impedance 500k ohms
• Output Impedance 10k ohms
• Maximum Gain 42dB (1.5kHz)
• Equivalent Input Noise -115dB or less (input shorted IHF-A weighted)
• Control DIST,TONE,LEVEL
• Switch BYPASS／EFFECT
• Power Supply 6F22/6LF22 9V battery x 1 or Maxon AC adaptor
• Power Consumption 6mA/9V,7mA/10V Battery life manganese dry battery more than 76hours 25deg C / 77deg F（Panasonic 6F22NB)
• Dimensions 74(W)×124(D)×54(H)mm
• Weight 580g (including battery)
• Accessory 6F22 9V battery x 1, operating manual