The Diamond Marquis is based on the boost section of the popular, but very limited edition Diamond J-Drive TR which is in turn based on classic treble booster circuits. Ideally suited to pushing the front end of an already overdriven amplifier the Marquis offers the choice of a classic Germanium treble boost sounds or a 'Hybrid' mode that provides a clean, full range boost.

Treble Boost- it may not be what you think!
When people hear the term 'germanium treble boost pedal', they often assume that it simply boosts treble frequencies much like an EQ. In fact, germanium boosters generally cut some low end while boosting the upper mids. They also tend to introduce a certain amount of 'grit' or overdrive of their own. By running this 'hot' signal into an already overdriven amplifier (or a good overdrive pedal) you can produce a very different result from simply turning up the treble.

Germanium treble boosters are responsible for some of the most well known guitar tones of the 60's and 70's, providing increased overdrive and sustain along with a characteristic sonic signature.

Year Condition Color Case
Call Brand New Maroon None


Tommy's Guitar Shop
Tommy's Guitar Shop
Everett, WA
7:13 AM
Store Hours: Monday through Friday 10:00am - 7:00pm Saturday 10:00am - 6:00pm Pacific Standard Time. Closed Sunday. Tommy's Guitar Shop, 1911 Hewitt Ave, Everett Wa. 98201. Phone: 425-252-9252 email:

$$$$, Visa, M/C, Discover, AMEX, Cashiers Check, Money Order & Bank Wire. Paypal is also accepted, but requires approval from Tommy.

We ship WORLD WIDE. Buyer pays all shipping & insurance costs. NO C.O.D. shipments. WE ship via Fed EX or US Postal world wide. I inspect every piece of equipment prior to packing to assure quality and perfect working order when leaving our shop. I pack everything myself to the HIGHEST standards, for safe shipment any where in the WORLD.

Tommy's offers a 48 hour approval period for all shipped guitars, & effects. All shipping costs are the buyers responsibilty. All returned items paid by credit card are subject to 3% restocking fee. All returns require prior approval from Tommy. All shipped amplifier sales are final.