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At A Glance
- Input Impedance
- 600 kΩ
- Output Impedance
- 3 kΩ
- Nominal Input Level
- +6 dBV
- Maximum Output Level
- +26 dBV
- Bypass
- True Bypass without Buffer selected
- Tone Control (@ Full CCW
- -20 dB @ 3 kHz
- Current Draw
- 18.5 mA @ 9 VDC
- Power Requirements
- 9 VDC (ECB003 AC adapter)
- Throughput Gain
- up to +50 dB @ 1kHz
Dunlop positioned the MXR Sugar Drive (M294) within the MXR effects line as an overdrive pedal based on a rare circuit, covering a range from clean boosting to heavier distortion tones. It carried true bypass switching, with a buffer available as an alternative bypass mode.
The pedal operated on 9 VDC power, drawing 18.5 mA, and was specified for use with the ECB003 AC adapter. Its input impedance was rated at 600 kΩ and output impedance at 3 kΩ, with a nominal input level of +6 dBV, a maximum output level of +26 dBV, and throughput gain of up to +50 dB at 1 kHz. A tone control provided up to −20 dB of cut at 3 kHz when turned fully counter-clockwise.
Owners sourcing a replacement AC adapter should confirm compatibility with the 9 VDC, center-negative standard common to MXR pedals; a qualified guitar technician or electronics technician can assist with any internal servicing or bypass-mode configuration.
STRAIGHT TALK
What Stands Out
Keep In Mind
From the people who own them
Nothing in The Vault is for sale. These records exist so the instruments stay documented after the manufacturer moves on — and the most useful part of that record is what owners add to it.
Owner photos
Put yours on the record.
The catalog shot showed one finish, under one light, a long time ago. Yours has been played. Photos from owners are what the next person finds when they are trying to identify a part, match a finish, or work out whether the one they just bought is really what the seller said it was.
What do you know about this one?
Specs only go so far. What actually fits, what breaks first, what the factory got right and what everyone ends up changing — that lives with the people who own them, not in a datasheet. Post what you know and it stays on this page for whoever comes looking next.
Build Your Complete System
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Gear Help, Handled
From spec questions to full builds — players who have lived this gear since 2007.
Since 2007
Fit & Compatibility
- Bridge, tuner, and nut fit confirmed for your guitar
- Pickup and electronics compatibility checks
- Pedal power and amp/cab impedance matching
Mods & Upgrades
- Upgrade paths for the guitars you already own
- Wiring, routing, and hardware swap guidance
- Advice from people who actually do the mods
The Vault
- Discontinued and EOL guitars kept on record
- Specs, history, and known part compatibility
- Share your builds and mods with the community
