Sound Pure's Take
Condition: Used, Excellent
This Swart amplifier is a beautifully expressive, hand-wired Class A design that delivers rich, dimensional tube tone with remarkable feel and character. Its single-ended circuit, valve rectifier, and zero negative feedback create touch-sensitive response, while lush tube-driven reverb and tremolo add depth and movement at the tap of a footswitch. Built with premium components, point-to-point wiring, and a resonant pine cabinet, it feels alive and responsive at any volume. Compact yet powerful, this Swart is a thoughtful, enduring investment—crafted to inspire creativity and reward discerning players for many years to come.
From Swart Amplifiers
Yep, the STR-Tremolo will have the same soul and basic circuit as the STR-Tweed, just with:
The addition of a great tremolo stage
(along with a revised and more surf Zone Reverb Stage)
The addition of a 3 way EQ Switch that makes
the STR-Trem more flexible
Available in the original STR "Tuxedo" 60s style
or the AST Style Tweed cab.
Push comes to shove, I think the STR-Tremolo does have a touch less gain than the STR-Treed as the Tremolo section will take place of the extra gain stage in half of the 12AX7. On the other hand, it will still have much of the STR-Tweed's great tone, immediacy, growl, and touch sensitivity. Drop in the Atomic Boost, and you get it back and more. I really dig this amp and have been playing it daily since we finally got it off the bench.
5W CLASS A ~ Single-Ended Output
Zero Negative Feedback
100% Tube Circuit - GZ34 or 5Y3 Valve Rectifier
Big Swart Tube - Spring Tank Reverb - Foot Switchable
Swart Tube Tremolo - Foot Switchable
3 way EQ Switch ~ Full, Natural, Low Cut
Powered by choice of 6V6 ~ 6L6 (shod w/6V6)
JJ 12AX7(2) - JJ 12DW7 - JJ 6V6S - JJ GZ34 Rectifier
Shop Tube Subs - Tung-Sol 12X7, TAD 6V6, TAD GZ34
Point to Point Hand Wired Circuit
Cathode Biased (no need to bias)
Carbon Comp Resistors ~ Mallory Caps
Cloth Hook-Up Wire
Hi/Lo Input for High & Low powered Pickups
Heaters referenced to ground
Standby Switch for tube warm-up, extending tube life
All Swart Amplifiers employ Star Grounding
4/8 ohm 1/4" Out - Drive other Speaker/Cabinet
Switchcraft 1/4 inch inputs and output
CTS Potentiometers
Custom High Quality USA Built Swart Spec Iron
Speaker: 12" Mojotone BV-30H ~ 8 ohm
Finger-Jointed, solid Pine Cabs w/Two Build Options
Vintage Jewel Lamp ~ Circuit Fuse Protected
Two-Button Footswitch for on/off Reverb & Tremolo
Dimensions: 17" W x 10 3/4" D X 16 3/4" H (w/feet) ~ 29.5lbs
Warranty
This item is sold without the Sound Pure 3-year warranty (used / B-stock / dealer-exempt). Coverage terms for items in this category live in Terms & Conditions, Section 27.
Returns
Try Before You Buy: 48-hour audition. Program details →
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