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Vox Full Revalve Kits / Vox AC15 Heritage Mazda EF86 Harma EL84 Retro Full Upgrade Kit
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All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
Our Vox full upgrade Kits are designed to get your Vox sounding as you want it, like a Vintage Vox. Our Classic Retro kits have been our most popular as many owners have found that by upgrading the stock valves that they have improved the sound of their amplifier. So whether you are a seasoned professional or playing for pleasure our upgrade kits will give you the sound you are looking for.
Vox AC15 Heritage Retro with the Mazda EF86 full upgrade kit covers the AC15 1TV and AC15 HTH Head. It is designed to give you the classic Vox sound by providing as close to the old Mullard tone as possible with more gain from the EF86 channel.The heart of the Heritage hand wired series and the soul of the Vox sound is the classic EF86 channel. There is one very important reason why the Mazda EF86 excels in guitar amplifier application. The design of the Russian EF86 has lower output impedance; these results in 10 % more gain. So what you get is a low noise valve, with more gain. The Mazda EF86s are vastly superior to the modern made EF86 in sound and performance. So this is the valve to choose for more gain out of your Vox EF86 Channel.
The Harma ECC83 Retro provides a harmonically rich and detailed sound with clear 3D midrange warmth. It has a very open and clear top end chime giving that gives the amplifier that rich sustaining tone. The outstanding feature is a smooth linear midrange response and extended frequency response. So you get smooth warm overdrive with tight fat punchy lows and that classic Mullard style bottom end.
The EL84 Retro has a deep well defined tight bass that produces the classic slam of the Mullard in the bottom end with the bass being deeper and belter defined.
The midrange performance has been tweaked to provide warm clear detail at low volumes with clear articulation and smooth even distortion when the amplifier is cranked.
The Harma EZ81 Retro follows faithfully the original Mullard design of the two anodes around the central cathode. The Harma EZ81 is internally braced to prevent vibration in guitar applications such as the AC15.
This combination removes the High end fizz and the rather brittle distortion characteristic which is the most common complaint levelled at this amplifier. The EF86 channel as more gain with more bite and presence with more clarity when overdriven when compared to Stock or Vintage EF86. The Mazda provides excellent projection on solos. The clean sound is still as you would expect for a Handwired Vox, both open and chimey.
This is the ideal kit for any player who wants that Classic Vox sound with more added punch.
The kit consists of 7 valves
2 Specially Selected Harma ECC83 Retro
1 Specially Selected & Balanced Harma ECC83 Retro
1 Specially Selected Mazda EF86 RU
2 Specially Selected Harma EL84 Retro in a matched pair
1 Specially Selected Harma EZ81 Retro
Please note that this kit is for the valves only
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