AC30 and AC30TB. In a nutshell, the result of this design is more power and more distortion - the latter of which gets thick with second and third order harmonics that become more and more prevalent as the amp is cranked. Thanks to our unique Valve Reactor Technology the power stage of your ToneLab is automatically switched to its “EL84s in a Class A circuit with no feedback” emulation whenever AC15, or any of the other three Vox models, is chosen.
Like most amps of its era, the AC15 is the very essence of simplicity. In fact, the Channel we modelled, Channel 2 (remember!?), only has three controls - Volume, Brilliance (really a bass cut) and Top Cut. When you select AC15, the ToneLab’s GAIN control mimics the original’s Volume control, while the PRES- ENCE control acts as the Top Cut.* FYI, the AC15’s Top Cut control affects the high frequencies in a very different way than a “regular” Treble control. Deft use of it will help you dial in the exact amount of that instantly recognizable,
As for what the “extra” TREBLE and MIDDLE controls on our AC15 model do: as already mentioned earlier, they’re exactly that - “extra!” Set them at 12 o’clock and they’re “neutral” (i.e. they mimic the exact tone of the original) or tweak them for extra tonal flexibility.
*CONTROL NOTE: The original AC15’s Top Cut control works in the opposite way you’d expect - it “cuts” when you turn it up! You’ll be glad to read that our model of the Top Cut control (the PRESENCE knob) works in a much more logical fashion - turn it up for more “sparkle,” turn it down for less.
Original’s valve compliment: 1 x EF86, 3 x ECC83s, 1 x ECC82 in the preamp, 1 x EZ81 rectifier, 2 x EL84s in the power amp.
2. AC15TB
While the AC15 was born in the late ’50s, the AC15TB is a
The original has two tone controls - Treble and Bass. So, as is the norm, the ToneLab’s TREBLE and BASS controls mimic their namesakes while the MID- DLE (“neutral” at 12 o’clock) and PRESENCE add further tonal flexibility...should you want it. To ensure maximum “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. Enjoy!
Original’s valve compliment: 5 x ECC83s in the preamp, 1 x 5Y3GT rectifier, 2 x EL84s in the power amp.
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