Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

Item # 159341 | Customer Ratings: Ratings (Based on 12 reviews)

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Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

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      Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal (159341)
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      Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal (159341)
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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.

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

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

  • Uses two premium, military-spec, subminiature, USA-made Philips-Sylvania 6021 dual-triode tubesHigh-plate voltage100% vaccum tube signal pathTwo channelsTrue bypassFully encapsulated toroidal transformer for quiet operationHeavy-duty steel chassis




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

    Power supply

Seymour Duncan SFX-03 Twin Tube Classic Preamp Pedal

One year replacement warranty on all pickups.

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Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

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  • Accidental damage protection (new gear only)
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  • 100% Coverage for Commercial Use
  • Extended Return Period
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  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web

Accessories you'll need:

  • Musician's Gear Powered Pedalboard and Gig Bag

    Price: $79.99
  • Live Wire Advantage Series 1/4" Straight Instrument Cable

    Price: $13.99
  • Boss PSA-120S ADAPTER

    Price: $21.99

Product Reviews

Based on 12 reviews)
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  • SFX -03 Twin Tube

    As reviewed by Jimbo on 10/16/2006

    I recently purchased and spent some quality time with this pedal. I am overall very impressed with it's performance. Since it has true bypass, your amp can be set with a clean or slightly distorted sound and when the pedal is bypassed you get the true sound of your amp coming through. Channel one can be set for a slightly more distorted sound for rhythm and channel two can be set for a higher gain sound for solos (this is how I use it). The channel switching is very versatile and the tone is excellent in every aspect. This pedal sounds like a good tube preamp should. Any sound from clean boost to raging distortion is obtainable. I love the tone of this pedal. The only potential drawback is that this pedal requires a proprietary power supply (not the typical 9 volt supply) and does not use batteries, so do not loose the power supply! It feels solid and substantial, and switches without discernable noise. I also like the "chicken head" knobs for their retro style. I highly recommend this box.

    11 of 11 people found this review helpful.

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  • Great 2-Channel Tube Preamp

    As reviewed by JBT on 9/18/2006

    The name of the product says it all. "Seymour Duncan", so you know its quality. The "Twin Tubes" give your sound the raw power of a tube amplifier. "Classic Preamp Pedal" is just what this is. It will give you a wide range of distortion without losing its tone. The SFX-03 provides you with two channels, so its easy to switch between two separate levels of gain seamlessly, without that "click" of channel switching that lesser pedals have. It also offers a true bypass function, which means that when the pedal is not switched on, you get clean tones without any drain on the signal. Overall this pedal is very good, worth the money, and built like a tank. If you try it out, you will like what you hear. If you buy it without hearing it, you won't be disappointed.

    7 of 7 people found this review helpful.

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  • Awesome pedal

    As reviewed by Rockin for God on 11/21/2006

    I got this to use with my solid state combo. I have it running to the clean channel of a 35w peavey envoy 10". The sound is incredible. At first it sounded good, but then after a few minutes of warming up, it sounded great. I can get a medium gain setting on the first channel and a heavy gain on the lead channel. Sounds much better than some of the other Tube pedals that run low voltages.

    5 of 5 people found this review helpful.

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