Bass Drive Plus

The Ashdown Bass Drive Plus is a bass-specific distortion unit that provides a wide range of distortion effects. It operates by splitting the bass signal into high and low frequency bands and applying appropriate types of distortion to either one or both. The pedal features separate HF and LF Drive controls with a Balance control to blend the two together, allowing for distortion to be added to the HF signal while maintaining a full and fat bottom end. The technical specifications include:

HF Drive filter section:
- Filter frequency: 180Hz
- Filter roll off: 12dB/octave

LF Drive filter section:
- Filter frequency: 600Hz
- Filter roll off: 12dB/octave

Composite crossover point of the overlapping High and Low pass filters: 250Hz

HF Gain: 0 to 60dB
LF Gain: 0 to 30dB

Input:
- Impedance: 470k Ohms
- Signal level: -10dBv to 0dBv

Output:
- Impedance: 10k Ohms
- Signal level variable: -10dBv to 0dBv

Supply:
- Internal 9v battery
- External supply: 9v DC adaptor. Centre pin negative

The pedal is housed in a durable metal case and features an input level control with an illuminated Ashdown VU meter to allow optimum signal matching. It also includes true bypass switching for zero-colouration of the input signal when the pedal isn't in use.