UNPLANNED DOWNTIME: 12th Oct 23:45
Up for grabs is my VOX AC15H1TV. It's got wonderful sparkling cleans, great 60s rock top-boost fizz and EF86 crunch. But I'm after more headroom at gig volume, so this has to go, but I know I'm going to miss that addictive chime. Worth noting that this has been mounted on castors and comes with a cream vinyl cover. I also have a few spare EF86s (best are a Brimar and Tungsram) that I'll include.
It's currently for sale in a friend's shop (£575) but I though I'd advertise it here too. I've not got pictures ready to go, but here's one of it with my 335 and pedal board too for extra ogling interest! Let me know if you want additional photos and I'll get them over the weekend.
Here's the spec from Vox's blurb.
The 15-watt AC15 Handwired features two channels of VOX tone through a single 12" Celestion Alnico “Blue” speaker. The tube complement is made up of 1 x EF86, 3 x ECC83/12AX7, 2 x EL84, and 1 x EZ81 (rectifier).
Channel 1 is the EF86 Preamp channel, and features two inputs wired in the traditional way that gives them a 6dB gain difference between them. A two-position BASS SHIFT switch is included, with position 1 voiced to the original vintage-correct bass response and position 2 voiced to tighten the bass response and reduce any muddiness during high volume use. The three-position BRILLIANCE SWITCH provides flat response when in the OFF position. Position 1 is a new position voiced like the early AC30 “Treble” amps, while position 2 is the original brilliance circuit, which acts as a dramatic bass cut. The EF86 Mode switch re-configures the EF86 valve from Pentode mode to Triode mode. Triode mode will give a lower gain tone with higher headroom. Pentode mode is the famed original mode and has a very sweet high gain tone with not very much headroom.
Channel 2 is the Top Boost Preamp channel. Like Channel 1, this channel includes two inputs wired with a 6 dB gain difference between them. The Treble and Bass controls are from the 1963 Top Boost circuit and are extremely interactive. Very minor adjustments of these controls can yield dramatic changes in tone color.
And true to VOX form is the Top Cut control, which cuts high from either channel end as it is turned up.
Flexible power
The O/P Switch adds even more flexibility to the AC15. This switch changes the power output valves from Pentode Mode, which is the normal operating mode of the power amplifier, to Triode Mode which halves the power output to 7.5 watts and will alter the tone to be somewhat smoother.
The finishing touches
Great care and research went into the cosmetics for this special amplifier to meld vintage correct attributes with some modern revisions. These touches include a vintage “TV Front” cabinet, pre-1960 logo placement, and a vintage inspired cream vinyl covering. An extremely limited edition run of 400 amplifiers will be produced with oiled mahogany cabinets.
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