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Also having been an amplifier repairman and modifier as well as professional musician for
over 20 years, I designed the GT-100 from a reliability and usability standpoint. Deliberately
overbuilt "to the hilt", and with great attention to detail, the GT-100 design incorporates hand
wound, paper bobbin, interleaved transformers, top quality tube sockets, metal shaft pots, and
high quality "over spec." components throughout. All components are selected with equal
importance laid on tone and durability.
Channel switching is done with ultra fast gold plated relays, and the circuit board is laid
out for zero cross talk and "planar" signal degradation. Servicing is made simple by easily
removable or accessible circuit boards, commonly available tubes and fuses, and can be serviced in
minutes on the road by a qualified technician. Hopefully, since every step was taken to avoid
failures, this feature will not be utilized. Nevertheless, all connectors and pots can be accessed
and cleaned for basic standard maintenance, without removing the circuit boards. (That was
always a personal pet peeve of mine back when I was doing repairs)
The cabinet and head are kept separate for a minimum of sound coloration and maximum
tube life, and are equal in weight to facilitate carrying and minimize back strain. The cabinet is a
sealed back, 8 ohm, 2 x 12" enclosure with an angled front baffle. It was sized, voiced, and
configured to produce a smooth resonant frequency and a big clear sound not unlike your favorite
4 x 12. The sealed back pushes 90% of it’s sound forward and will sound consistent from room
to room. This is important to remember if a strange room gives you difficulty hearing yourself on
stage. The recommended configuration is two of the GT-212 cabinets with one GT-100 head, this
gets one cabinet up to your ears while the other stays coupled to the floor for a big full tone. To
run two cabs, use a penny to set the impedance selector to 4 ohms.
The end result is a full stack that can be carried around in an economy car and can play
any gig from a wedding band to a stadium performance with no compromise in tone. The next
one will be lighter, I promise. As always, I sincerely hope you enjoy playing through this rig as
much as I do.
Warranty
Subject to the Obligations and Exclusions found below, this GUYTRON product is
warranted against manufacturing defects in material and workmanship for the period of one (1)
year from the date of purchase, with the exception of tubes, which carry no warranty, and
loudspeaker drivers, which are covered for 90 days.
The warranty period commences on the date of purchase by the original user.
Performance under this warranty must be obtained at one of the following: a GUYTRON
Authorized Service Station, by returning the unit to the GUYTRON factory with prior
authorization, or (in countries outside of the United States) by a representative GUYTRON
