ST-6V6se Info
5W Class A  • Single-Ended • 6V6/6L6
Tube Rectification • Pure Tone Goodness

This is the amp that started it all.  The Swart Amplifier Co Space Tone 6V6se arose out of musician/recording engineer Michael Swart's attempt to get the most tone and soul from a small, easily manageable package for home/studio use. 5w of pure Class A tone with a breakup and natural tube distortion that is unequaled in modern amplification. Will play 6V6 and 6L6 and is Cathode Biased, so no biasing hassle. The ST-6V6se is now housed in an excellent finger-jointed cabinet covered with Lacquered TWEED. It's an instant Classic & Michael Swart favorite. Simply put, this is a KILLER amplifier. This circuit is the heart of Swart Amps: It's all about The Tone. More Info



ST-6V6se Head



5W SE Class A • TRIODE REVERB 6V6/6L6 Tube Rectified • 14lbs of Tonal Bliss w/Swart Reverb

Our new favorite at the shop!  The Space Tone ATOMIC JR is the famed ST-6V6se with a dedicated triode reverb stage utilizing the 12DW7 fed into a spring tank for amazing reverb emanating from this little 14lb beast. The circuit remains uber simple for the best touch sensitivity, tone, and responsiveness. Like all Swart Circuits, it Includes Tube rectification utilizing the GZ-34 or NOS 5Y3.  Features volume, tone, and "Space" control.  There will be a unique-to-Space Tone ATOMIC JR switchable gain option in place of the 6V6se feedback switch. It will have a 4ohm output transformer and come stock with the Weber Signature 8 Ceramic. The tweed covered pine cab will resemble a baby AST with light tweed and dark side panels. Other covering options are available. More Info








Atomic Jr Head

Swart ST-Atomic Jr
~hover mouse for back of amp ~

\~hover mouse for back of amp ~




See Swart STR-Tweed
5W SE Class ATube Reverb
12" Speaker
6V6/6L6Glorious Breakup w/Cleans Switch!

Take the original, ever popular, Class A, single-ended 5w ST-6V6se and pump it with steroids via another gain stage, killer tube reverb, and a 12" speaker and you have the new STR-Tweed, quite possibly the most FUN Swart amp to play yet. And the beast runs 6L6, too! This is truly a low watt monster and I cant stop wiping the grin off my face. Literally. This zero feedback circuit gets the added control of a switch letting you bypass the extra gain stage for more available cleans, and all with that great tube reverb that Swart has become known for. This truly might be Swart's most raw, big toned amp, all housed in our finger jointed pine cabinet in lacquered tweed
(optional Dark Tweed & original STR Cab)
More Info




5W SE Class ATube Reverb
Tube Tremolo 12" 6V6/6L6 Creamback, BV-30, Celestino Blue

This is our new favorite go to option, the latest amp that is causing all the buzz and intrigue, so much so, it was back ordered before #1 had even left the shop.  And who wouldn't want all the amazing tone and compelling breakup of that Swart single-ended, low watt STR glory with all tube reverb AND tremolo?  Indeed.  Bottom line, it's another great little amp with excellent swirling cleans moving into that great breakup and sweetness all the Swart amps are known for.   This is essentially much of the 5w, single-ended Class A STR-Tweed circuit with a unique 3-way EQ switch that is very handy along with this tube tremolo so addictive in the AST.  Yep, it's Cathode Biased for no users adjustments  with tube sub/rolling.  Like all Swart's, can run the 6V6 and 6L6.  Bring in ZERO NEGATIVE FEEDBACK for that open, quick, touch sensitive sound.  Don't forget the 5AR4/5Y3 Tube rectification for the amazing lack of harshness combined with the wonderful sag and compression when needed.  Comes with the Mojo BV30, or the excellent CREAMBACK, one of our favorites... but LOVES the Celestion Blue Alnico, too (Tux Cab w/Blue is Killer)!  Available in Tuxedo 60s covering or TWEED with dark sides.
More Info




The new MOD84 ~ EL-84 Amplifier by Swart Amps!
          15W  • Push-Pull • EL-84 • Tube Verb/Trem
           Tube Rectification • GLORIOUS!!!!

It's been a long time coming but Swart's FIRST combo dedicated to the EL-84 is here. Let's just say, once again, we think the wait is worth it. Enter an amp that defies stereotype. This is not your standard EL-84 offering... Like every Swart, hand-wired, point to point, ALL TUBE with tube/spring tank Reverb and Tube Bias driven Tremolo.Comes with proprietary interactive volume/EQ with 3-way EQ switch. You can custom order any cabinet covering or opt for one of our great suggestions over finger jointed pine cabinet. This circuit also fits the STR-Tremolo cabinet for a small footprint if desired. More Info




Tube Reverb - Tube Tremolo - 18-20w 6V6PP

In just a handful of years, the Swart AST has received some of the most glowing raves of ANY amplifier in recent memory. This amplifier has 20w of twin 6V6 power in high Class A biased AB and brings some of the most soulful, rich, near three-dimensional tone you have ever heard. This has to be one of the most expressive amplifiers made to our knowledge, and we've tried more than a few.  TUBE REVERB and TUBE TREMOLO, something virtually nonexistent in today's marketplace, is just part of the picture. Includes a 12" Custom British Vintage Series BV-25m that screams TONE with body and soul; This amp has excellent breakup (wait till you hear the samples). This all new circuit is housed in a lacquered TWEED pine cab with dark Tweed panels. This amp is in its own league. More Info

The Atomic Space Tone in  detail




More on the AST PRO
The Ultimate AST 6V6/6L6 for the Gigging PRO

Swart and Greg V have teamed up again, except this time in the Design Studio. Introducing the Swart AST PRO, the answer to the professional musician's need for the AST with a nod to life on the stage and road. Take the amazing AST circuit and drop the beast into a cabinet with a bit more depth for some extra bottom, a recessed chassis for knob/switch protection from mishaps, and a bit more room for more speaker options. Then add the new larger port for more breathing room and the addition of an on-the-fly switching external output on back, making driving another cabinet as easy as plug in, and you have the amazing AST PRO, the new Swart offering ready to take you beyond. Comes with your choice of speaker, including the legendary Celestion G12H Heritage UK or the knockout tone monster Celestion Gold 12 Alnico. Pair this monster with our 2x12 cab and you have a host of options that would stir the head and the soul. More Info

See the full AST PRO detail




The AST Master Combo
Bypassable Master Volume - Tube Reverb/Trem
18-20w ~ 6V6/6L6 ~ 1x12 or 2x10

Also known as the AST Mk II Combo. The Master is essentially the AST Head Mk II chassis and circuit placed in a custom 1x12 cabinet (2x10 driver on special request).  Like the AST Head MkII, the AST Mk II Combo has a defeatable master volume and can run the stock 6V6 and 6L6.  Can be fitted with a variety of 12" driver options. This is a very sweet setup with a bit more fullness and bottom than the AST combo although a touch hotter setup as well. Retains head's ability to run 4-8-16ohm loads and comes with two outputs.  Can run INTERNAL speaker along with an EXTERNAL CABINET. More Info

Swart Atom
~  Click above for more




The Swart Antares
        18-22W  • 6V6/6L6 • Point to Point • Tube
         Verb/Trem • Tube Rectification • Shop Favorite

Introducing The Antares, Michael Swart’s latest all tube, point-to-point, hand-wired twin 6V6/6L6 amplifier. The Antares shares the legendary Atomic Space Tone’s attitude while being designed for those who crave a bit more headroom, bottom-end foundation, and bigger verb, while utilizing top mounted controls. Imagine the hallmark Swart 3D holographic, harmonic richness (anti syrupy or slow), partnered with that Swart transparency and touch sensitivity. Push it harder and you get that amazing breakup. An Antares owner noted, “The bottom end is really rich and hefty but still composed while the cleans are so sweet, clear, and vocal; push hard for that lush breakup.” The circuit features all-tube reverb and tremolo along with tube rectification; no solid state hardness or glare with this beast. Includes 3-Way EQ and high/low inputs to match guitar output. All pine, finger-jointed, hand-made, tilted back baffle. Cabinet comes in a host of tweed & tolex options. 1x12 or 2x10 available with Ceramic/Alnico speakers. NEW ANTARES MASTER and available in SMALL STR style cab!  More Info



More on Swart Antares






ST-Stereo 5w + 5w Head
5w + 5w Class A Single-Ended STEREO!   Two Amps-One Chassis!   Tube Verb/Trem ~ 6V6/6L6

Well, it's finally here and shipping, this after the biggest pre-release stir since the AST!   Michael has just done it again with this beast, an amp that HAS TO BE HEARD IN PERSON TO BE BELIEVED.  Yep, that deserves all caps for effect.  Take two of our favorite 5w Single-Ended circuits, one with our reverb and one with our killer tremolo, stuff them in ONE Chassis with the ability to drive them both from your favorite axe, with a near infinite ability to tweak the stereo response, and you have the most room filling, 3D, LARGEST sounding amps Swart has ever produced.  This beast is LUSH and PLUSH, and larger than life sounding.  Takes 6V6 or 6L6 and can drive your two favorite cabs for the most separation or partner with our all new 2x12 Stereo cab, speakers set at 45 Degrees.  Each amp can be configured to 4 or 8 ohms. Each amp has it's own volume and tone controls with 2 switch EQ.  You can adjust the volume for each, changing the effect to hearts content.  Really rewards creative thinking and experimentation.  THE favorite option in the shop right now!  Amps can be driven separately or together. Please contact your favorite Swart dealer to get in queue. Absolutely amazing. More Info

The new Swart ST-Stereo Head & Cabinet




Swart Amps new Stereo Master 20 Head
 20w + 20w All Tube Stereo w/Master Volume • 6V6/6L6 Tube Reverb • 2X Tube Tremolo Tube Rectification Swirling Huge Glorious Tone Monster!

This amazing amp has really been a long time coming but the wait is worth it. We're talking TWO 20 watt amps in one chassis, each with separate controls for EQ & tone along with tube/spring tank reverb and 2X Tube Tremolo with a unique Stereo Master Volume control. Michael has been planning this amp for years. Simply put, you have to hear it to understand how BIG this thing sounds. The dark tweed head is truly something special. And it will take 6V6 or 6L6 for a bit more headroom. Rectifier options include 5AR4, 5U4, and 5Y3 for most sag/compression and sweetness. More Info





AST Mk II Head and cab
ALL Tube Verb/Trem - Master ~ 6V6/6L6!

The AST Head MkI Limited Edition sold out in a record 45 days. What to do? Get Michael working on a second version, this time designed from the ground up to be run as a head, with the added advantage of a MS designed defeatable Master Volume that can be bypassed for the purist! This is the FIRST Master we have liked in a combo as it does not leech the tone and bottom end. The new head can now run 6V6 & 6L6. It's the same great AST circuit that has brought accolades from around the world, except now more flexible than ever! The AST Head II can push 4/8/16ohm cabs and has two outputs. The matching 1x12 cabinet comes stock with the Mojo BV-25 but can be purchased with speaker of choice. As always, the finger-jointed, lacquered tweed, pine cabs are first rate. This is destined to be another classic. More below. More Info




Swart SST-30 Info
Tube Reverb/Trem - Master Vol - 4x6V6/6L6 ~ 30W

You loved the AST Head, so much so, we sold out of the Limited Edition run before we thought we would. After a line formed, asking us to extend the run, we told them to be patient. Michael loved the Atomic Space Tone in both the combo & head version but felt the need to up the stakes one notch, adding another pair of 6V6, the tone~soul valve of choice, this combined with a Master Volume and a number of tweaks to the circuit. Enter the all new, totally unique, the SST-30 head and matching, custom tweed 2 x 12 Space Tone Cabinet, possibly one of the neatest cabinets we've seen, housing two Celestion "Creambacks" behind the vintage grill. The combo is a knockout but each stands equally well alone.  We've found there's a "Hear it, gotta have it" thing going on. Don't say we didn't warn you... More Info






Swart ST-45 Head
Tube Reverb/Trem - Master Vol - Twin 6L6 POWER

It's finally in production after the long wait but like a fine wine, it's more than worth it. The all new SPACE TONE FORTY-FIVE, or ST-45, is a first for Swart Amps on a number of fronts. It's our first 45 watt amp that is built and dedicated to the 6L6 tube, this via our first production Fixed Bias circuit to get the MOST out of this great tube. It's our first offering with separate bass and treble controls. Bottom line, this amp just has STELLAR CLEANS, so sweet and alluring, with no trace of the mechanical. Picture an AST on clean steroids. This amp really nails that elusive harmonic richness while still sounding open and transparent. The real kicker? It's actually as beautiful as it sounds, with another first for us, a full convertible HEAD cab that can be removed to show this beast off in full glory. IT's an aesthetic masterpiece mated with the easiest access to tube rolling fun you'll ever find. The cab is secured with four heavy duty latches. This amp made Buddy Miller reach for ye olde checkbook after only a few minutes playing at NAMM. Can be paired with matching 2x12 or 1x12. The 2x12 with CREAMBACKS is a winner but so is the 1x12 Gold or Cream. More Info









Below Offerings Discontinued but not forgotten...



See more on the Swart Atomic Space Tone Head - 20w of glorious ALL TUBE POWER!
- Click above for More -

AST Head  Mk 1

* Limited Edition Run:  ALL SOLD OUT
  Tube Reverb - Tube Tremolo - 20w 6V6PP

You loved the Atomic Space Tone.  The raves were glorious - Thanks for the GREAT feedback, literally and figuratively!  We thought this amazing amplifier actually deserved to live on its own for those that want to mix and match speaker cabs.  You asked for it and we delivered.  So now, in a Limited Edition run, we are producing the AST Tweed Head, everything you loved about the AST amp, now in a heavy duty, tweed covered head, ready for your favorite cabinet!   We don't expect these to last long...   






5W SE Class A - Tube Reverb -
12" Speaker
Glorious, Open, Clean to OVERDRIVE FUZZ!

Michael, when are you going to make a little 5w beast that captures the magic of the little Space Tone but with that big Swart Reverb? Hey, and what about a 12" speaker? And can it run the 6L6, too? Well, the wait's over for those looking for the ultimate 60s vintage bigger than life, low watt beast. Introducing the Space Tone Reverb, a single-ended, zero feedback circuit based on the 5W 6V6'R that started it all but with added 60s vibe, the biggest reverb YET, all feeding into a 12" speaker with serious Iron! I have to say, this has the best Super Fuzz, full volume breakup of them all and with that Swart tone everyone has come to love, all housed in the throwback finger jointed pine cabinet, covered in retro Tolex This amp really has it's own unique sound, apart from the other Space Tones, but has it's heart from the 6V6SE.


See the whole story:
Space Tone Reverb




see Space Tone 6V6se

Class A - Single-Ended - 6V6 - Tube Rectified

This is THE amplifier that was at the very ROOT of Swart Amplifier Co. The ORIGINAL Space Tone 6V6se Mk I is the amp that started it all. Read all about the original amp and circuit, way back when it was covered in vintage cloth, many custom ordered by musicians tired of the mundane, off-the-s
helf, garden variety amp.  Now those that have these original amplifiers hold a collector's item.  Read on about what started the Swart Amps craze.

The Original ST-6V6se has now concluded its
final run. See latest Space Tone 6V6se in Tweed





Tubes & Parts from Swart Amplifier Co.

Swart Parts - Options

Electro-Harmonix or Ruby 6V6GT |
JJ 12AX7 | NOS & JJ 5Y3 | JJ Heavy Duty Surface Mount radial 500v Power Supply caps (extra filtering for modern voltages)| Mallory Coupling caps | 600v Orange Drop Polypropylene Film and Foil coupling caps | Carbon Comp resistors for that vintage tone, Weber Ceramic / Signature AlNiCo 8 (giant killer) | heavy Duty Heyboer Custom Irons | Swart Amp Co does offer options including Jensen Copper Oil capacitors, Auricaps, Kiwame Carbon Films, Weber, and MojoTone Speakers. 



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