Swart STR-Tremolo (Custom Build Deposit)

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  • Model: SWART STR-TR (CO)
  • Manufactured by: Swart Amplifier Co

Build times vary from 1 to several weeks depending the current backlog of orders. Please contact us to get a current build time estimate. We require a 50% deposit on all special orders and the balance prior to shipping. USE coupon code 50%DEP at checkout to place your special order and make you deposit to get the build going!

We have one in stock with the Tuxedo Cabinet and Celestion Blue speaker. If you absolutely have to have it NOW you may be able to twist my arm but the studio says it can't bear to see it go so if you have a little time, maybe we can make it worth the wait. This amp is definitely worth the wait!!! Also, do yourself a solid and go with the Celestion Blue.

5W CLASS A - Single-Ended - TUBE REVERB - TUBE TREMOLO 12" Speaker - 6V6/6L6

The STR-Tremolo has the same soul and basic circuit as the STR-Tweed but with the addition of a great tremolo stage (along with same quality Reverb stage) and the addition of a 3 way EQ Switch that makes the STR-Trem more flexible.

As stock in the original STR "Tuxedo" 60s style cab & a limited run of AST Style Tweed cabs 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.

I actually tried the STR-Trem with and without an Atomic Boost and loved it both ways. Of note, the new cabs are a touch deeper to fit the Celestion Blue and Gold or many other slightly deeper speakers. I thought the Celestion Blue was AMAZING in the amp but did have a bit less bottom fullness at lower levels, much like any alnico vs a good ceramic. The BV-30 is such a great compromise of tone, great breakup, and nice fullness for a 5w single-ended design.

I loved the 3-way switch when you needed to back down some of the added lower end fullness when pushing the amp hard. Drop it back in with a bit lower volume and it's a pleasant extra bit of lower end richness.

This amp just sounds so great when cranked, though. The overdriven STR-Trem is just addictive with a lot of complexity and swirl. And it allows you to hear the difference in guitars instead of turning every axe into more of the same. I'd say that's a great trait of all Swart amps and the STR-Tremolo continues the tradition with aplomb.

As for the tremolo, it's not easy to get great trem with low wattage single-ended designs and this is among the best I've personally heard, with a nice range of speed and good depth. But the amp sounds great with it off, too. Back the depth to zero and let her rip and you'll be grinning ear to ear.

STR-Tremolo Specifications:

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 - EH 6V6GT - JJ GZ34 Rectifier

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" D X 16 3/4" H (w/feet) ~ 29.5lbs

As an aside, after sitting with it for a good 30 minutes and loving it, I personally played a pair of STR-Tremolo in STEREO and was just blown away. One had a Celestion Gold (Blue might even be better on hindsight) and the other a BV-30. Moved them five feet apart and dickered with settings and for the love of St. Nick, could not stop playing the beasts. It was so compelling, I'm convinced we need to come out with our own Stereo Pedal just so we can facilitate running these things in pairs. I moved to one AST and one STR-Tremolo and was just as blown away, if not more. For those of you with TWO Swarts of any kind, running them in stereo is just amazing and highly recommended.

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