Owner`s manual

JamVOX Effect guide
4
2. VOX AC15TB
The AC15TB is a modern-day amp which combines the tonal characteristics of the AC15’s low Wattage power stage, with the increased tonal flexi-
bility that the Top Boost (TB) channel of an AC30 has to offer. Then, to sweeten the pot even further, a 12¨ Celestion “Blue” speaker, Reverb and a
Master Volume control were thrown in too. The original has two tone controls—Treble and Bass. So, as is the norm, the JamVOX’s TREBLE and
BASS controls mimic their namesakes while the MIDDLE (“neutral” at 12 o’clock) and PRESENCE add further tonal flexibility. To ensure maxi-
mum “Voxiness,” we’ve made sure that the PRESENCE control behaves exactly like the “Top Cut” on the original AC15 — except in reverse (“off”
= cut) to make it more logical, just like on our AC15 model. In trademark VOX fashion, our AC15TBX model oozes clean tones that “jangle” and
“chime,” while its overdrives are smooth yet pulsating with desirable harmonic overtones.
Original’s valve compliment: 5 x ECC83s in the preamp, 1 x 5Y3GT rectifier, 2 x EL84s in the power amp.
3. VOX AC30
This amp is based on the Normal channel of a 1959 30 Watt, 2x12, AC30. The AC30’s Normal channel boasts the bare minimum of knobs — Volume
and Top Cut (GAIN and PRESENCE* respectively).
Original’s valve compliment: 4 x ECC83s, 1 x ECC82 in the preamp, 1 x GZ34 rectifier, 4 x EL84s in the power amp.
*CONTROL NOTE:
Once again, our PRESENCE control styles the “Top Cut” on the original AC30 exactly — except in reverse (“off” = cut) to make it more logical,
just like on our AC15 model.
4. VOX AC30TB
The Brilliant channel of an AC30TB includes extra tone circuitry that features an additional ECC83 valve called “Top Boost” and two extra EQ con-
trols, giving the amp
three tone controls — Treble, Bass and Cut. Once again, the PRESENCE control of our model acts as the original’s Cut (but in reverse: “off” = cut)
while the GAIN, TREBLE and BASS mimic the original’s Volume, Treble and Bass controls. The MIDDLE is an “extra” with 12 o’clock being its
“neutral” position. Our AC30TB produces clean sounds that are rich and jangly with a smooth yet detailed top end, and overdrives that have a glo-
rious, throaty bark — just like those classic, “Class A” tones.
Original’s valve compliment: 5 x ECC83s & 1 x ECC82 in the preamp, 1 xGZ34 rectifier, 4 x EL84s in the power amp.
5. UK BLUES
Our UK BLUES is based on the “High Treble” channel of an extremely rare, handwired head made in England in the early ’60s. Although the
TWEED 4x10 circuit was used as a basic template for this amp, several fundamental changes (e.g. different tubes, different transformers, a higher
output impedance and vastly different speakers in a closed-back cab), give UK BLUES its own unique and highly desirable character.
Original’s valve compliment: 3 x ECC83s in the preamp, 1 x GZ34 rectifier, 2x KT66s in the power amp.