Boutique-quality tone for the working musician!

The SFX-03 Twin Tube Classic preamp pedal delivers all the gain and smooth tone you'd expect from a high-quality tube preamp. The high-plate voltage and 100% vacuum tube signal path allow the 2 - 6021 dual-triode tubes to operate at their fullest potential and provide maximum dynamic range. Two channels expand the tonal possibilities of this preamp even more, from glassy, smooth clean tones to warm crunch with tons of bite. Power supply included.

Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal Features:

• Uses two premium, military-spec, subminiature, USA-made Philips-Sylvania 6021 dual-triode tubes
• High-plate voltage
• 100% vaccum tube signal path
• Two channels
• True bypass
• Fully encapsulated toroidal transformer for quiet operation
• Heavy-duty steel chassis

Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal Includes:

• Power supply

Beef up your wimpy sound with the warm bite and crunch of real tubes. Order now.

Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

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Average of 44 User Ratings

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Powerful and Flexible

Posted by nuss from Aspen on Oct 15, 2009

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: Varied

I run an electric semi hollow guitar into a loop station and go direct to PA for gigs. This is currently the only signal booster I'm using to give the electric some tone. Between the two channels, I get most of what I need which is pretty amazing considering I'm not using a guitar amp. The tone is warm, fuzzy and of course not as juicy / meaty as it would be through an amp but pretty good nonetheless. These tubes definitely take a little while to warm up and peak. The tones get much more palpable after the pedal has cooked for an hour or two. Definitely play one first like anything else tone-related, see if its a mate for your gear.

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Dull

Posted by TomOrrow from PA on Sep 30, 2009

Experience w/product: I own it

Reviewer's Background: Former touring pro, active musician

Reviewer's Play Style: Rock, Country, Blues, Jazz etc.

I just got this pedal in the mail today and it took about 2 minutes to be seriously dissapointed with it. The problem is that it sounds so dull. Even with the bass EQ turned all the way down and the treble maxed out it just doesn't have any tone in the mid or high range. I know what I'm talking about and wish I hadn't read the other 40 reviews here raving about this pedal. The tubes distort well but unless you want to totally change the EQ on your amp then this won't have any of the tone you are looking for. I put this next to my EH English Muffin (which absolutely smoked it), Paul Cochrane Tim pedal, Hermida Zendrive, and TS808. I play through a Bruno Cowtipper 90 and Bruno UG30 with power attenuators on both. This pedal sucks. Get a used English Muffin for any type of soft crunch to full on rip. Better yet, if you want classic distortion start pushing a 6v6 tube amp until it rips.

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Warmth

Posted by Narrowgate from Suisse on May 13, 2009

Experience w/product: I own it

Reviewer's Background: Active

Reviewer's Play Style: Rock/Ambient

This a really great unit. The warmth is truly amazing (can't beat tubes!) Anyone who does not like the sound of this has either a poor amp, or poor ability. Although I do have a couple of issues, the footprint is rather large, and in less than a year the tubes went, and I was not gigging heavily with it. Overall, quite satisfactory.

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The best pedal

Posted by Long Time Player TD from San Francisco Bay Area on Feb 28, 2009

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: Classic Rock, Blues, Jazz

I've had this unit for 3+ years now. The tone is incredible! It has a very warm tube sound. I play SRV type blues/Satana and classic rock. This unit coupled with my Mesa Boogie 2x12 Lone Star is pure heaven. A reviewer that rank this unit low,obviously can't play and/or doesn't know what he's doing. I haven't had any problems. This is a great buy.

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Great Tube Tone

Posted by GuitarLoverABQ from New Mexico on Dec 9, 2008

Experience w/product: I own it

Reviewer's Background: gigging musician

Reviewer's Play Style: rock, blues, jazz

Sounds and responds like a classic tube amp. Easy to use, solidly built, but the tones are what I love the most. It works great giving some extra overdrive options in front of a Fender Blues Deluxe, as well as in the 'practice rig' - placed in front of an RP300A (which has a good Tweed amp sim, but the SFX-03 adds great tube tone, response and character). I've had this pedal for 2 years now and did have to send it to SD for a tube replacement earlier this year, but it was quick and easy and took less than a week. Use your ear to dial in tones and you won't be disappointed. For really high-gain stuff, look elsewhere, but if you like blues and classic rock tube tones, you owe it to yourself to try one!

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Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

Read 44 Reviews

$219.95

MSRP: $314.00 Savings: $94.05(29%)

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Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

Read 53 Reviews