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Hi gain, hi fi preamp valves - Sovtek 12AX7LPS

5751 12ax7LPS preamp valves

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#1 Kiwi

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Posted 18 September 2015 - 09:07 PM

After being dissatified for a while with the gain on my Burman Pro501, I decided to replace the remainder of the chinese valves left in by the previous owner (from Lindisfarne) with Sovtek 12AX7 LPS valves.

All I can say is that it transformed the amp overdrive from a cheesy sounding 70's fuzz box with a flabby bottom end from a Dave Stewart track to a nasty, raw sounding monster with a tight bottom end and loads of crunch.

If you want to bump the gain up in your amp, I can't recommend the Sovtek LPS valves enough.
Bass: Self built 5-string semi hollow headless, '79 Alembic Series 1 graphite, '78 Musicman Stingray, '86 Pangborn Warlord graphite, '93 Pedulla Pentabuzz, '09 Shuker Headless 6 MIDI (signed by Lee Sklar, Doug Wimbish and Billy Sheehan),'00 Spector NS5CR, '90 Status Series 1 5 string.
Backline: EBS Microbass, FEA Labs Dual Band compressor, Future Impact bass synth, Zoom B3 into two Genz Benz Shuttle 6's and two fEARful F112 cabs, Trace Elliot Hexavalve, two Burman Pro4000HD 140w valve heads

Guitar: Alan Knight 'Hitmaker' tribute, Klein-berger replica with sustainer, Warmoth HSS Strat (signed by Nile Rodgers), Yamaha MSG Deluxe Mk 1, Yamaha MSG Deluxe Mk 2
Backline: Effectrode PC2A compressor, Empress Parametric Eq, Amptweaker Tight Rock, Joyo JF14 American Sound, Zoom G3X, Lexicon MPXG2 + R1 foot controller, Ibanez TSA5 x2 Burman Pro 501 50w combo and Fender Concert II (Rivera era)

Studio: Yamaha CS6R synth module, Axon AX100 pitch to MIDI, Burman GX3 preamp, Lexicon MPXG2 and MIDIman 16ch mixer, Ableton Live + soft synths

#2 gary mac

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Posted 19 September 2015 - 06:36 AM

Love that description of the original sound to the new improved version :D

#3 Kiwi

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Posted 19 September 2015 - 09:40 AM

The difference is remarkable. It's become a completely different amp! I'll probably bring it to the SE Bass Bash...
Bass: Self built 5-string semi hollow headless, '79 Alembic Series 1 graphite, '78 Musicman Stingray, '86 Pangborn Warlord graphite, '93 Pedulla Pentabuzz, '09 Shuker Headless 6 MIDI (signed by Lee Sklar, Doug Wimbish and Billy Sheehan),'00 Spector NS5CR, '90 Status Series 1 5 string.
Backline: EBS Microbass, FEA Labs Dual Band compressor, Future Impact bass synth, Zoom B3 into two Genz Benz Shuttle 6's and two fEARful F112 cabs, Trace Elliot Hexavalve, two Burman Pro4000HD 140w valve heads

Guitar: Alan Knight 'Hitmaker' tribute, Klein-berger replica with sustainer, Warmoth HSS Strat (signed by Nile Rodgers), Yamaha MSG Deluxe Mk 1, Yamaha MSG Deluxe Mk 2
Backline: Effectrode PC2A compressor, Empress Parametric Eq, Amptweaker Tight Rock, Joyo JF14 American Sound, Zoom G3X, Lexicon MPXG2 + R1 foot controller, Ibanez TSA5 x2 Burman Pro 501 50w combo and Fender Concert II (Rivera era)

Studio: Yamaha CS6R synth module, Axon AX100 pitch to MIDI, Burman GX3 preamp, Lexicon MPXG2 and MIDIman 16ch mixer, Ableton Live + soft synths





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