Earthquaker Devices Sunn O))) Halflife

Sunn O))) and EarthQuaker Devices are pleased to bring you the most compact, pedalboard-friendly version of the Life Pedal distortion circuit to date-the Sunn O))) HalfLife Octave Distortion + Booster. The HalfLife may be half the size of its ancestors, but it's just as heavy. HalfLife is a distortion with a blendable analog octave up and a booster combined in one compact package. The "Amplitude" side is faithfully modeled after the classic "White Face" distortion unit.

The only modifications made to the original circuit are in the clipping section. The traditional circuit uses a single pair of silicon diodes for a tight, compressed crunch. HalfLife introduces two additional clipping options:

• No diodes for full, grinding Op Amp assault at maximum volume.

• Two silicon diodes and one LED in an asymmetrical clipping configuration for a slightly compressed and smooth crunch, similar to a valve amplifier.

The Octave in HalfLife is an all-discrete analog full-wave rectifier circuit. Located at the input of the circuit, the Octave control slowly blends in the octave effects. This feature can also be used via expression control. Because this is an analog octave effect, it is monophonic and works best playing single notes.

The signal path goes Octave>Distortion>Boost. The octave distortion and booster can be used independently with their own respective footswitches.

Controls:

• O(ctave): Blends in the analog octave.

• F(ilter): Low pass filter with a frequency response from around 500 Hz to 30 kHz.

• D(istortion): Gain level, up to +60dB.

• Mag(nitude): Booster's output volume.

• Clip(ping) switch:

- OpAmp: No diodes.

- Asymm: Two silicon diodes and one LED in an asymmetrical clipping configuration.

- Symm: Stock double silicon diode.

• Amp(litude): Octave's output volume.

• Magnitude footswitch: Boost Activator.

• Amplitude footswitch: Octave Distortion Activator.

• Octave EXP: Expression control of the analog octave blend.

• Flexi-Switch® Technology: Relay-based, true bypass switching allowing momentary and latching-style switching.

- Since the switching is relay-based, it requires power to pass signal

• Power: Standard 9 Volts DC w/ negative center.

• Lifetime Warranty