Tech 21 SansAmp TRI-A.C.
Tech 21 SansAmp TRI-A.C.

SansAmp TRI-A.C., Guitar Amp Simulation Pedal from Tech 21 in the SansAmp series.

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All user reviews for the Tech 21 SansAmp TRI-A.C.

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Average Score:4.6( 4.6/5 based on 13 reviews )
 9 reviews69 %
 2 reviews15 %
 1 user review8 %

MGR/Vanwarp's review"Tech 21 Sansamp TRI-A.C."

Tech 21 SansAmp TRI-A.C.
I had the opportunity to test drive the TRI-A.C. at a local music store, but I did not have the cash to pay for it right away. When I returned to pick it up, "they" had already sold the only unit they had on hand. So, needless to say, I will be getting my TRI-A.C. ELSEWHERE...

The TRI-A.C. is a programmable - 3 amp - preamp - stompbox.

Sounds and tone:

The amp selector switch toggles between Californian, British and Tweed amp emulations with corresponding color-coded LED’s - green for clean tweed sounds a la SRV, red for Marshal-esque sounds a la 70's rock, and orange for Mesa modern hi-gain sounds a la System of a Down, Korn, Slipknot, In Flames...they are all in there! The factory preset Twin-style sound is clear and strikingly responsive to one’s playing dynamics. Very impressive...

Also, of importance is the fact that the slightest adjustment of the tone controls results in a considerable change in tone and sounds. Go easy when experimenting. Don't rush anything. Knobs included on the TRI-A.C. are: drive (gain), bass, middle, treble and level.

Ease of Use:

Clicking on any chromed footswitch once activates the unit on and you get a bypass function as well. Tweak the tone controls to edit your sound and click the corresponding footswitch twice in rapid succession and the unit stores your new sound to that switch. Try the factory presets first and then if necessary, edit your sound. Experimentation has never been made easier.

Some may find the sensitivity level of the tone control knobs too delicate for their fingers...

Built to last forever. You can use batteries or a 9V adapter.

If someone offered me the three cool valve amps that inspired the TRI-AC sounds for $200 I’d snap them up even if I knew they were stolen. Hell, I’d probably snap them up for 2000$! But if I did, I still wouldn't have the versatility and ease of use of the TRI-A.C. unit. The sounds offered by this unit are remarkably good. I will be using this unit as an effects pedal, like having an extra three channels for my combo amp, I will plug it directly into a mixing console to see what sounds I can get, I will use it as a recording tool and see how it performs in this capacity.

This is the ideal effects pedal for expanding my amp's capabilities and achieving a “killer” metal sound.

This review was originally published on

MGR/Peter's review"Tech 21 Tri A.C."

Tech 21 SansAmp TRI-A.C.
Purchased this from Musicians Friend for $149. This unit is the most satisfying analog guitar effect/amp emulator available out there. It sounds 100% tube with tons of even harmonic distortions and very clean Fender tones. I have the Tech 21 GT-2 but the GT-2 is thin sounding and lacking body whereas the Tri AC sounds fat able to isolate the body of each string or group of strings played.

The Tri AC is able to emulate Fender, Marshall, and Boogies extremely well. While the GT2 is strictly for metal heads it cannot cut through like the Tri AC can. The Tri AC can command those single big notes as well as chords - Joe Walsh, Santana, and etc. It mates well with humbuckers.

I prefer using the Tri AC with a 9 volt battery as the AC adapters tend to introduce some AC noise if your electricity is not filtered.

The Tri AC sounded raspy with no body for the first 48 hours as the capacitors were burning in, thereafter, it was tube heaven.

Build quality is very good and it feels sturdy.

The Tri AC is a good start with 3 tone banks +1 bypassed. It sounds or it can emulate tube amps extremely well. It is analog and this gives the warm singing harmonics as opposed to raspy digital effects. I challenge Tech 21 to come up with a similar product with 6 tone banks - 2 for each amp style at a reasonable price of course.

This review was originally published on

poiureza's review (This content has been automatically translated from French)" almost perfect"

Tech 21 SansAmp TRI-A.C.






All the pedals I had, this tri-ac is one of the best.
The sounds are very convincing. The gain and tone controls are interactive and therefore provide a lot of possibilities.
I want to say that this is the only pedal that I Tech21 has really enjoyed it.
I never managed to get a decent sound with Sansamp Classic despite all the praise that can be found on the internet. The XXL either was not terrible.
In short, this tri-ac can have 3 sounds quite acceptable emulation Marshall is perhaps a bit better than the Fender or Mesa.

The only disadvantage that I found (and why I had to bring myself to sell the pedal) is that it does not offer enough gain even with dual coils. Unable to make high-gain solos.
Shame ...

Reiep's review (This content has been automatically translated from French)" Big disappointment"

Tech 21 SansAmp TRI-A.C.
What I was looking for a simple and efficient pedal, three sounds: like Fender clean, Marshall crunch types, such distortion Mesa / Boogie.

The big point is that it is programmable. by a program switch.

Solid construction.


Programming the pedal is very simple, turn the knobs to desired sound, you press a few seconds for the switch and it's saved. LEDs flash if one is following close or far from a setting records. Very easy to use.

I used a Tech 21 Power Engine 60 Tech 21 as advocated by, but ...


Ca ... I was not convinced. But not at all. Clean fine, but impossible to have a good crunch or distortion: no body, very little gain. Almost as if I had used a distortion pedal direct into the amp without preamp. Even print directly with a speaker simulator.

It was better before an Axe FX with a full simulation of apli behind, but not silly ...


I dare hope that I received a defective pedal. It was really a pedal which suited me on paper for a small pedalboard simple and effective. I wanted to like it, but I did not have. Very bad.

For the rest, quality construction, ease of use, it's solid.

philharmonique's review (This content has been automatically translated from French)" Excellent"

Tech 21 SansAmp TRI-A.C.
Everything has been said!


I did not have the manual but with explanations of the seller, it is very simple. 3 different channels, the various trimmings very effective recall of presets for editing recorded super simple, delightfully. I am using ac


sorting for 3 days to play at home. the config is simple, it fits into my Vox DA 5 itself plugged into a Celestion G12 M 25W. My guitar is a Tokai Les Paul with Gibson 57 classic pickups. It sounds divinely so I guess on an amp made of sterner stuff that the DA 5 quality gear must be further enhanced.
I also made the change of the channel indicated in the brit tips and the result is really convincing, the experiment is so simple to post a big thank you for that info ..


I found the sound quality of my SansAmp Classic which I unfortunately sold a few years ago with the added ability to have 3 different sound and very realistic despite the lightness of my amplifier (I think highly of my Vox DA 5 but not a tube amp either). As soon as I can, I bought another because I alternate between strato lespaul and therefore, different settings depending on the type of guitar used.

freedave's review (This content has been automatically translated from French)" TRI-Ac simply sounds!"

Tech 21 SansAmp TRI-A.C.
We are in analog, so it trsractif the flick of the wrist. Super reliable. Made in USA. No comment.


I put ten because it is very simple: you turn the knobs to wedge the qualisation really liked but I can save a dozen patch. In fact, the irony of the thing: before I drove by Boss, Zoom, Vox (not bad ...) and the Line6 BCAN offer dozens of sites for patches that serve users has seen nothing that sounds are almost all same! With the Tri-Ac is just the opposite: tons of possibilities and that 3 patches possible! short .. But if that is super simple.


When I bought (190 U.S. dollars on eBay), I t Tonn noted that the simulation of hp be deemed to be provided but really stinks ... ! Morally it was necessary that I pay more a passive simulation Palmer EUR 90 .. L. .. and it's just magical sounds marshall and boogie out almost alone! It's standard! Just reproaches: the gain is too limited. We have a real gain for british big play good rhythm: acdc, blues, jazz, funk, everything goes very well but if you want the big gain for soloing with a sound that will not stop adding a boost or compressor. Vai fans and company break out your ... DS1!


Excellent pedal. Nothing to say we are very far ahead of the amp simulation that offers no numrique A veritable realism. I sold everything else. I even dbarrass my amp because it sounds very very good DJ on monitors.
I would do it without hesitating choice.

Negens's review (This content has been automatically translated from French)

Tech 21 SansAmp TRI-A.C.
Prampli transistor (it has to hide from the mosfet below).
Jack in and out.
An XLR with phantom power supply would apprciable t.
A drive, 3 band eq and output level.
Select a type of amplification.
3 push buttons to select and save presets.
The case is solid seems to be designed for the rigors of scne.


Operation is simple and intuitive, it's a breeze.
The manual is ultra clear.
Is obtained relatively easily with a good sound that prampli.


The sounds are excellent if you know there is one thing not in the chain ngliger sound of electric guitar: The cabinet!

Having bought this tool to save the DMOS home, I do not use it in live condition or BPS. So I plug the SansAmp in between my audio interface (Presonus Firepod A).

It sounds pretty good but for longtempsn I am not able to get sensation alism and I found the sound will integrate a hard mix. Ms. using baffles to GuitarRig or Amplitube, I was well and nothing more. And lacked body ...

Until I make the acquisition of AudioEase Speakerphone, a simulator of baffles on the bottom rponses pulse. And the sound of the blow seems bigger, more natural, with all mediums must be low, warm ...

O On the importance of the cabinet!

I play everything from blues to progressive.
I use a Schecter C-1 30th Anniversary and I think the characters of the guitar is prserv.

I then passes through a digitech Hardwired Stereo Reverb RV-7.

The sounds are immediately trsralistes.

In his clear, sounds british typs are easy to obtain.

I am not convinced by the tweed, with too severe Submitted. Possdnant a Fender, I do not find anything on the SansAmp.

Modes and especially Brit Calif. are excellent.

Having had a PODxt before, I can tell you that the SansAmp is well above the modlisation Line6.

The distortion sounds are incredible.
Without being the "lamps" was the level of the best transos. That's a supper that I use MOSFET.
The sounds of the Marshall ct warm CHARACTERISTICS makes dlicieux soli.
The Mesa sounds are not bad but lacked a little in the attacks agressivit if you want to do mtal trsmchant.
The subtle modulations and great passing game and are not gums.
They are in dous Tech 21!
The Line6 is compltement Largu!

As I have acquired in order to record my demo ides without sweat the whole neighborhood, I could explore what was given in a mix:

- THE FIRST thing that appears is that what is transcribed is the pseudo simulation intgre HP is really not the SansAmp gniale. And raises more or less becomes a problem because of the blow almost impossible grate in the mix ... An investment in speakerphone, and l. .. Oh my god!! Well, it's not just for the demo versions that I will use the SansAmp!

Solo or double track of a real amp, a happening, no matter what.
Applying the corrections frquentielles "classic" of a mix, and going alone. It frankly illusion.

However, I would say it is not empty to find the right rglage active with the legalization (a formidable efficiency TOO) of the SansAmp. I have to fight several weeks to get your exact I was looking for.

This is an excellent product condition to spend time on it refine its rglages ds, adapt to the rest of his hardware, when you want ds group play or record with.

What makes a product look easy to use, but which in fact rvle plutt hard use in the end.
Well no, it's not fool-proof in fact. If you ESPRI of plug'n'play, this is not the best solution out there.


I use it for four months.
The feature that I like most:
+ Solid.
+ Clean and simple interface.
+ Sounds practitioner.
+ Trs the legalization effective (if you know you are going o).
+ The possibility to use it to catch sounds, without sounds ridiculous.

The feature that I like least:
- The lack of an XLR with phantom power supply
- Simulation of tweed limit caricature and too low frequencies.
- Spend time temperatures requiring the non ngligeable rgler not as easy as it seems.
- Do rvle prsence potential that a (power amp +) baffle.

Aqurir before, I had a PODxt, gear I n'espre not see under my feet. I tried a Vox Tonelab, really not bad, but leaving the all-in-one to pass individual pedals, I did not port this choice.
The ultra-zoom digital and sound cart I direct this choice.

The report is qualitprix Dante! It's amazing to have such quality for so little. Especially since I've made the offer to Nol!

With exprience, and I would say even with exprience, it's a choice I would do. Even if the SansAmp looks intuitive, I do not advise beginners. Indeed, with exprience, we get what we want, but if not, may be your exact dcevant (I even sell the bankrupt to beginners. I want by saying that it is better connatre well the subtleties of string sound before acqurir a SansAmp.

In short, a great product, but does not address all, despite what one might think.

keuch's review (This content has been automatically translated from French)

Tech 21 SansAmp TRI-A.C.
Transistor, 2 jacks, an equalizer, gain, volume and choice of amp. XLR output would have been great to connect in direct sound.


Config ultra simple, but must look at the manual. I never thought to how to get a mesa boogie fender bassman sound, well, it does graaaave.


I play a little bit of everything, it is perfect. Not ideal for trash, etc.. but otherwise, the big distos mesa are still excellent, I find them much better than the pod X3 live my door. sounds cleans sounds warm, dynamic ... Again, it buries line 6!


I have since yesterday, I like everything.
I bought it tomorrow again if it is again! a value, of OCCAZ, amazing !!!!!!!!
ben good few months after I confirm the good things about this little box but in the end, I bought a Peavey ValveKing head and I must admit that I saw dynamic level and sound quality ... is not to say, the lights, it's still a difference ... but it's still a very good machine, repeating or not at all bother lugging.

satchka's review (This content has been automatically translated from French)

Tech 21 SansAmp TRI-A.C.
Said. I would have liked an additional output XLR with phantom power as the Acoustic DI of the same brand


Could not be more simple: no menus, no screen unreadable, just the same settings on an amp. Attention to the active EQ is very effective, but a violent hand not used, after it rolls ... I now play on Fender strato-EMG Epiphone jazz and plugged directly into the sound system or console (in the studio on prime time, it's magic ...)
English manual for America, but it's not complicated and well done with examples of relevant settings, it's OK


Excellent! It is the only credible alternative (to my knowledge) to a real amp on the overdrive section. I mean for the distortion, any pedal or preamp can do the trick, transistor, lamp or informatico-qqchse. But to do from an amp with overdrive, you need a floor amp all-lamps in addition to the preamp, otherwise it will not sing, there is no attack, then compression, then the holding characteristic of Note that we can modulate and grind, "harmonic" which, without finishing dismally in the mosquito germanium ...
This box provides a lot of musical sound and still usable.
For my part, I use the Tweed for the crunch position, the British for the agreements, California for the overdrive


- For a year
- Its simplicity, its lightness, strength, love less greediness in stack: AC power required!
- Oh lala so since the days!
- Report Q / P saw his excellent life
- Absolutely

Greig's review (This content has been automatically translated from French)

Tech 21 SansAmp TRI-A.C.
I will not repeat what others have done.

I would just say it's more than a pramp PDAL saturation. It is therefore Sansamp technology originally designed for accumulation amp for direct recording console. The subtle of this model is that it has an output level infrieur to other models in order to be plugged into a guitar amp. None the less usable online. It is in this config I use.

3 Channel 3 then switches ...


Very simple config

That program, double click to record an adjustable

The edition is have the SansAmp: its settings can be found by turning the knobs, the LED flashes plsu and faster until the initial position

Simple manual


I first bought one to replace a DM4 pedal baord. For more dynamic, sound more "real"?. It sounds like it was a preamp but the grain is not very el'ampli of respect I think.
The three are very DIFFERENT CHANNELS but all offer a standard range of sounds. and as many products Sansamp the setting is not always so easy, with a normal active equa ...
It sounds on it, it was super versatile, as it was on, but finally I removed my epdal board to use it for my preamp dmo, models and play in front of my PC. I like the channel aprticulirement british, very classic rock. The tweed channel gives a good fat when pushed, and the caliph is for me the most polyvalene, t the equa ets super effective it's going to rock to metal through the clean jazz ....

I have used with Burny Les Paul, a Twin and a DNG.


I have 2 years
I like the simplicity of use, the sound.
I also have a DM4, colder, I rel with SansAmp, we have a real sound, analog, living, full of truly density typ .. So we may not like ...

Price impeccable quality (150 used)

Looking back I will not sorting AC amplifier for use. j'achetrais the coup can be a simulation Podlike (VOX Valvetronix I think), more versatile (with effects) for what I am doing today ....

but it is a great product ... I tell myself that if I play live console LIVC one day I will use as a simulation of HP with my pedal board in front!