Music + Technology = Pete Lacis

A while back I had the opportunity to attend Bruce Egnater’s amp building seminar at his shop in Berkley, Michigan.  During this class we learned about the basics of amp building and were taken through the step-by-step process of assembling our own amp – a Mojo Tone JTM45 kit who’s circuit was tweaked by Bruce Egnater to mirror his own design from his modular series (according to Jeff Hilligan its the “3″ in the EG 3/4 module with more gain) .  Premier Guitar Magazine was on hand to cover the event and I was featured in this video demonstrating the capabilities of the amp we had constructed.

As much as I enjoyed the experience, once I got the amp home I had difficulty incorporating its tones into my sound and playing style.  As described by the folks at Egnater, the EG 3/4….

Here in our worldwide headquarters, we asked what would happen if we were to take the SL2 and smooth it out a bit for soloing. We darkened it up a bit, and added a touch of mid range emphasis, and created what is the perfect sound for mic’ing through a p.a. system (which is more and more common for you guys that gig regularly).

Channels A and B were taken from the acclaimed Egnater TOL amplifiers and act as great rhythm and lead channels for guys who favor a lead tone that is a little smokier.

Here’s an example of what the stock Egnater Seminar Head sounds like:

Stock Egnater Seminar Head

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Since I found this voicing to be too compressed, dark and saggy for my tastes, the amp sat for some time as the backup that never got played.  Fast forward about a year or so and I became aware that David Friedman of Racksystems was offering his services to mod these amps.  After hearing some pretty amazing clips of his “Brown Eye” and “Hairy Brown Eye” mods on a number of sites and speaking with David at length about what type of sound I was looking for (tight, focused, punchy yet warm), I knew I had to have my Egnater seminar head modded to give it new life.  After all, David is Eddie Van Halen’s rig guru so I knew the amp would be in good hands.

As my #1 amp for the last few years has been John Suhr’s OD100 Classic Plus (under the Custom Audio Amplifiers moniker), I though it would be great to compare these two amps so that folks to hear some of the differences and see what they do well.

Guitar used was a Gibson Les Paul VOS “G” ’60 with stock Burstbucker pickups but upgraded with the RS Guitarworks vintage upgrade kit.  Cab was a CAA 1×12 loaded with an Eminence Governor.  Mic was a Shure 57.  I/O was a MOTU 896.  DAW is Ableton Live 8.  I switched between the amps using a Custom Audio Electronics Amp selector.

CAA OD100 Classic Plus Ch 2

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CAA OD100 Classic Plus Ch 2 Boosted

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Friedman Modified Egnater Seminar Head – Brown Eye – Gain at 5

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Friedman Modified Egnater Seminar Head – Brown Eye – Gain at 10

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Friedman Modified Egnater Seminar Head – Hairy Brown Eye – Gain at 5

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Friedman Modified Egnater Seminar Head – Hairy Brown Eye – Gain at 7

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Friedman Modified Egnater Seminar Head – Hairy Brown Eye – Gain at 10

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After about a month in the shop, I received my newly modded Custom Audio Amplifiers OD100 Classic Plus (+). This is actually the third time this amp has been modded (was originally an OD100 Standard, then SE, now Classic Plus).

My first impressions on this amp are as follows: the character of the gain is still 100% Suhr. It lives in the same family as the SE version of the OD100, however through the conversion to the plexi transformer and the EL34′s some things have really changed.

Normally I would associate sustain with compression. The SE was pretty compressed, but only in boost mode, IMO. The CAA Classic Plus is a much easier to play amp. Notes just seem to sustain without sounding compressed. Everything just oozes out of this amp while still retaining the sound of the guitar/pickup. That’s how John’s described the amp and that’s why I went with this version. So far, I’m totally digging the change.

Special note should be mentioned about the DEPTH and FEEBACK controls. The tonal shaping that can happen as a result of these additions is really something else. If you want to have that “rounded” Dumble style tone, you can roll off the Feedback entirely.

One other thing that should be mentioned is that this is the first of the OD100 series where I feel the amp works equally well for single coils and humbuckers. That, to me, is one of the best parts of this amp. I just works!

Here’s a little sample of what the amp sounds like:

http://www.petelacis.com/clips/od100classicplus.mp3

Custom Audio Amplification OD100 Classic Plus through CAA 1×12 Eminence Governor mic’d with a SM57 just off center. Guitar is a stock Gibson Les Paul VOS 1960.

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