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February 3, 2025

Mark Sampson: Again Cat | Classic Guitar® journal Guitar Contact

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Mark Sampson: Back Cat

MARK SAMPSON 1The epitome of a stressed designer/tinkerer, Mark Sampson has co-founded 4 guitar-amplifier firms, two of which – Matchless and Unhealthy Cat – are indelible figures within the commerce whose authentic builds draw perpetual curiosity from collectors, particularly the Matchless DC-30 and SC-30, that are prime examples of boutique amps. 

Sampson began Unhealthy Cat in 2000 with Rick Perrotta, James Heidrich, and Joe Allrich. His departure 5 years later was lower than amicable, however the a long time that adopted noticed each events flourish. 

Within the run-up to this yr’s winter NAMM present, Unhealthy Cat introduced it was reuniting with Sampson on a brand new design known as the Period 30. We spoke with him simply prior, as he handled challenges exterior the store; ping-ponging between Mason Metropolis, Iowa, and Cleveland whereas settling his father’s property, he was additionally in common communication with two of his grownup youngsters who had been minding his L.A. residence because the Pallisades Hearth approached from three sides. 

“They had been in a troublesome spot,” he mentioned. “We’ve lived via fires and I knew they might deal with it, however once we talked, I heard the cracking of their voices.”

Fortuitously, the hearth didn’t attain the home.

What spurred your return to Unhealthy Cat?

Nicely, John Thompson, who has owned the corporate since 2011, tried for awhile to pay money for me earlier than [L.A. guitarist/producer/songwriter] Joel Whitley related us. I used to be completely completely satisfied working as a advisor and engineer in recording studios, however John supplied every little thing I needed if I got here again – royalties, possession of the designs, and the power to maintain working for different individuals and initiatives, as a result of I like working in studios. In actual fact, I’m proper now engaged on a patent for 2 condenser mics and I don’t wish to must set that apart or get too strung out by coping with the enterprise finish of creating amps.

I additionally didn’t wish to be concerned within the work of bringing an amp to the manufacturing stage, as a result of it’s one factor to construct a prototype that works nicely, however it’s one other to make the drawings and make use of individuals for a manufacturing line. John and the crew at Unhealthy Cat now are additionally far more in-tune with the web and trendy advertising and marketing. Getting in control on all that isn’t what I needed to do once more.

Anyway, John talked about that it was about to be 25 years since Joe Allrich and I began Unhealthy Cat, so he questioned if I’d be serious about a Twenty fifth-anniversary amp. I contemplated it for some time then requested, “What do you actually need? One thing with one knob, 5 knobs, 10 knobs?” I needed to be in sync along with his pondering. He mentioned, “You can do an up to date model of the unique Black Cat 30 with an lively results loop…” and so they’ve named it the Mark Sampson Period 30. I constructed a prototype and allow them to take it from there. They’ve made a half a dozen and the workmanship is nice; I used to be impressed.

What’s its configuration?

It has 4 EL84s with a 5AR4 rectifier tube, 4 12AX7s, and an EF86. It’s a bit completely different; it’s bought one enter jack that feeds each channels with a relay change between them managed with a silent footswitch that has LED channel indicators. You may as well bypass the relay and feed each channels on the similar time.

And the management format?

The EF86 channel has a passive rotary Depth change for low-frequency roll-down, and, like a tweed Fender, a high-frequency roll-down; it’s a easy Tone management. The opposite channel is form of a Prime Enhance AC30, with Quantity, Bass, Treble, and Achieve. It has an lively results loop that’s hardwire-bypassed, which is among the issues I insisted on and can by no means get away from as a result of I just like the pure sound of an amp with no pedals within the center or in entrance of it. I wish to simply hear the amp, particularly for recording; in that world, all of the extras simply get in the best way and add noise. You’re higher off monitoring clear and dry after which doing no matter results post-recording.

By way of perform, what units it aside?

Nicely, every channel has its personal Quantity, and the channels are now not out of section, so you may mix and blend them to your coronary heart’s content material with out worrying about section. Additionally, there’s an total Grasp quantity so you may play it in a bed room with every channel set to the acquire and distortion you need, then set the general quantity down if you have to. Every channel Quantity is pre section inverter, and the general Grasp is put up section inverter, so you may overdrive the section inverter a bit and get shading of distortion and acquire.

Whereas engaged on the circuit, we eradicated lots of the mechanical issues with EF86 tubes rattling due to how their grids are made, which is vital.

Have you ever and John talked about different amps?

I’m engaged on others for him primarily based on present fashions that simply didn’t sound superb to me, however there are not any agency plans.

What does your ear wish to hear that the majority amps don’t provide?

Nicely, I at all times wish to hear as a lot harmonic content material as potential and a pure, clear tone that provides house across the be aware. On high of that, it’s bought to sound good whether or not it’s actually clear or well-distorted.

There’s lots of listening and a few compromising after I’m growing an amp. I spend days at my workbench, soldering iron in a single hand, a guitar throughout my lap, simply attempting issues within the circuit.

On this planet of amp builders, there’s little bit of lore surrouding you and the businesses you’ve based. Does it have an effect on you?

Nicely, I make it some extent to not examine myself on-line as a result of half of it’s exaggerated in a single path, the opposite half within the different, and I don’t have time to appropriate all of it. Not solely that, however it’s too self-serving for me to attempt. Individuals are going to say what they wish to say, and I simply let it go.

John Jorgenson and I had lots of conversations about it, and he jogged my memory of the previous Hollywood adage, “I don’t care what you say about me, so long as you spell my title proper,” and there is one thing to be mentioned for that.

I’ve been constructing issues because the mid ’80s, so I’ve practically 40 years of designs to go on and it’s arduous to maintain up with what the general public thinks. All I do know is I don’t wish to get in tit-for-tat arguments with any individual I don’t know.

What do you keep in mind most fondly about your time at Matchless?

Nicely, Matchless was, after all, my first success story, and Rick Perrotta was there more often than not. In 1991, we spent each penny we had – all of our private wages and financial savings – to get to winter NAMM. Earlier than the present, we’d despatched an amp to Guitar Participant for a shoot-out, and on the second day we had been buried in individuals and couldn’t determine why. Nicely, it turned out they’d introduced that difficulty to the present, and we’d received the shoot-out. We didn’t know something about it; they by no means contacted us for notes or feedback or something, they simply gave the amp again and we figured we’d get some publicity from it.

I spent three days hand-selecting tubes for that amp so it could be primo, and I assumed each builder would do the identical, however apparently nobody else did. We came upon later that a few of the amps didn’t even work (laughs).

I keep in mind a man working across the present with a decibel meter. He’d stopped at our sales space just a few instances, and his final warning to us was, “If I come again once more, the police are coming with me and we’re throwing you out.” However we’d spent every little thing to get there and needed to profit from it, so we simply stored on going. We introduced six amps and offered all of them.

Who ended up with the amp that received the shoot-out?

I don’t know. I’ve a ebook someplace that lists the primary 50 or 100 amps and who they had been offered to. Ultimately, although, we realized that retaining monitor didn’t do us any good.

What was the most important spotlight from the unique Unhealthy Cat? 

Watching the marketing strategy that Joe Allrich and I created turn into a profitable firm. We spent two weeks creating it, and it labored virtually completely proper out of the gate. We had been a yr and a half faraway from Matchless, and Unhealthy Cat gave me the chance to work on improvement and design concepts. We knew who our key sellers had been going to be, how a lot product they might take, money circulate, and what the market would tolerate, price-wise. We had detailed experience.

How about Sonic Machine Manufacturing facility and Star?

My involvement with Sonic Machine Manufacturing facility really began simply earlier than Unhealthy Cat, which was some extent of rivalry with James Heidrich, who owned Unhealthy Cat. I needed to remind him that I had money and time invested within the work I’d executed with Rick Hamel, who is an excellent engineer who designed SIB pedals and had consulted for a bunch of pedal builders.

We ran SMF for just a few years, however it was by no means actual huge. We tried to discover a slot out there between the hand-wired amps and circuit-board amps, the place we’d break up the value level. But it surely turned out we had been too excessive for circuit board amps and there was no method we may decrease prices far sufficient to make it work. I don’t know what number of are on the market, however I might guess round 1,000 whole, which is fairly low.

At Star, I used to be working once more with Joe Allrich and a 3rd companion. It was enjoyable and bittersweet on the similar time as a result of Unhealthy Cat didn’t need me to go away and we had a giant struggle about it, however we had been making amps at SMF and SIB and had an organization able to deal with distribution. However once more, it by no means made sufficient cash, and when our cash man needed to go away for well being causes, it left Joe and I to do our jobs and oversee accounting, which was an excessive amount of. In the future we each mentioned, “I don’t wish to do that anymore,” and we began promoting stock. I nonetheless personal the Star trademark and use it for specialty initiatives the place somebody needs 5 or 10 of the identical amp. It’s a particular spot out there.

This interview first appeared within the March ’25 difficulty of Classic Guitar.




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