EBS Billy Sheehan Ultimate Signature Drive. If you’ve ever wanted to blend clean and distorted bass tones without hauling two rigs, this is your answer.

“This pedal is a distillate of several important principles in the signal chain for bass. Compression, distortion, tone-shaping and blending all together.” – Billy Sheehan

Parallel Signal Paths
The pedal splits your signal into clean and distorted paths—just like running two rigs. Adjust the blend with the Clean and Drive Level controls. A built-in compressor (with internal threshold control) keeps your tone tight and punchy.

Low-End Punch & Gain Boost
Use the Phase Inverter switch to recover lost low-end due to phase cancellation. Engage the Boost footswitch for extra gain when you need to cut through.

Expanded Tone Control
A Hi/Lo Frequency Filter shifts the Tone control’s entire spectrum, unlocking distortion tones unavailable in earlier versions.

Dual FX Loops for More Flexibility
Separate effect loops for Clean and Drive paths let you process each independently. Got a bass with dual outputs? Use the Clean Loop jack to run lows clean while shaping mids/highs through the main input.

All Deluxe Features—Plus More
Includes all features from the Deluxe model (like easy drive chip swapping), with added tone-shaping power via the Hi/Lo filter.

Features

• Frequency Range Switch: Hi or Lo Frequency range Switch, NEW!
• Boost Drive Footswitch: Boost Drive Footswitch **
• Phase Inverter Switch: Phase Inverter Switch **
• Controls: Drive, Tone, Level and Clean controls *
• Compressor Modes: Three Compressor Modes – High, Mid, Off *
• Loops: Clean Loop and Drive Loop (use an insert cable, such as the EBS ICY-30 to separate send and return) *
• Footswitch Type: Magnet Type Footswitches, NEW!
• Drive Circuit: Replaceable Drive Circuit (8-pin Dual Inline Op-Amp Controlling Drive Circuit) **
• Compressor Adjustment: Fine tuning trimmers to adjust Threshold level of the compressor (THR.) and the level of Compression when the mode switch is set to MID (COMP) *
• Boost Switch Level: Trim pot to set the BOOST switch level inside **
• Power Options: 9V DC battery or EBS AD9 Pro Power Supply (not included)

Notes

* Features shared with both the ‘purple’ and ‘orange’ version.
** Features shared with the ‘orange’ version.

Specs

Nominal Input Level: -8 dBv

Input Impedance: 700 kohms

Gain Range (Drive): 20 – 50 dB

Boost: Adjustable +3 to +10 dB

Tone Filter Range: 175 – 8000 Hz (two ranges), Q 0.7 – 0.9

Loops Output Impedance: 2 kohms

Loops Input Impedance: 47 kohms

Mix Level: Drive +3 dB max, Clean +6 dB max

Compressor Ratio: 5:1 (max)

Threshold: -25 to +6 dB

Attack Time (80%): < 7 ms

Release Time (80%): 75 ms (typical)

Makeup Gain: 0, +3, +6 dB

Output Impedance: < 50 ohms

Dimensions (W x H x D) 3.3″ x 4.5″ x 1.9″ (83 x 115 x 48 mm)

Weight: 420 g (0.93 lb.)

Type: Analog Effect, Relay Switching

Power Requirements: 9, 12 or 18 V DC, 60 mA max (shuts off below 6 V)