Sovtek 12AX7LPS
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Sovtek 12AX7LPS

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12AX7LPS, Guitar Amp Tube from Sovtek.


5 user reviews
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Sovtek 12AX7LPS tech. sheet

  • Manufacturer:Sovtek
  • Model:12AX7LPS
  • Category:Guitar Amp Tubes
  • Added in our database on: 12/08/2007

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Sovtek 12AX7LPS user reviews

Average Score:4.5( 4.5/5 based on 5 reviews )
 2 reviews40 %
 2 reviews40 %
MountAnDewMe07/29/2012

MountAnDewMe's review"The best 12ax7 from Sovtek"

Sovtek 12AX7LPS
If you are like me you have probably tried many different tubes over the years. I had a bad experience with Sovtek 12ax7 tubes in the past and found them to be very unmusical. The experience left a bad taste in my mouth for the name for years. A few years ago I took the advice of a trusted retailer who called them "One of the finest 12ax7 builds I have seen in modern production." I replaced the tubes in my preamp with them and was simply shocked at how good they really did shine.

The main differences in this line of 12ax7 are denoted by the LPS in the name. It refers to the use of long plates and a spiral wound filament. These tubes produce a very rich tone across the useable frequency spectrum and are designed to reduce hum in an AC circuit. It is a quality tube in a preamp or for use as a phase inverter. Just be sure to order a tube with balanced triodes for the PI slot, but that goes for any tube in that position. The only downside to the tube is inherent to the long plate design. If you are using them in a combo where they will be subjected to high vibrations they may develop micro phonic problems quickly.

They function well in all applications I have tried them in. In a clean channel they sound full and warm, while not being muddy. The mids are complex and satisfying. The highs have just enough shimmer to make them pleasurable, not harsh like some older productions from Sovtek. These tubes do especially well in a high gain situation and seem to go a bit farther than most other brand. They seem to compress a bit less and as a result offer more useable gain while retaining their tone. I find the lows to be well defined under these circumstances. The mids are well balanced, and the highs very complimentary neither smooth or harsh but just right to my taste.

There are many fresh new builds available today that I will eventually get around to trying. Many of them are from the New Sensor Company which owns a lot of the branded tube companies we now have available to us. The quality from their plants has risen over the years, which is good news to all of use tube amp users. With that being said I will always have some Sovtek 12ax7LPS tubes in my tube locker whether or not they are in my amp or not. They have proven to be a valuable component to me over the past few years and is the tube I use as "the bar" when I preview others.
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ebrian09/07/2013

ebrian's review (This content has been automatically translated from French)" Good lamp"

Sovtek 12AX7LPS
Cheap lamp, dynamic and resilient. Ideal for soft booster amplifier saturation and good "rock". Good saturation. Bass, middle, treble well balanced. More bass make even a hp 10 '. I use a Rivera in the lead channel.
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bert'nortt'05/15/2013

bert'nortt''s review (This content has been automatically translated from French)" always one or two in reserve!"

Sovtek 12AX7LPS
-I confirm excellent lamp used in phase inversion of vintage amp .... also made his job 'and will prove useful in V1 for those who want a more aggressive type output S 80 .. 90 .. . powerful enough without altering the musical rendering the opposite.
-Sovetek sometimes criticized .... yet they are not very expensive especially this one, silent and very bonifiente in its function it can be found from 15 .. 16 euros.
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N2h210/10/2011

N2h2's review (This content has been automatically translated from French)

Sovtek 12AX7LPS
Its relatively close to the Electro-Harmonix 12AX7 with a little less gain.

Very good balance bass / mid / treble.
Moderate gain compared to the JJ / Tesla and tung ground.
Few have a very good report on the floors clean, although I prefer the Electro-Harmonix is ​​more colorful, but my taste above the lamp is made to be phase inverting amplifier of the push / pull, my amp are equipped in this position.

A lamp with the least I could breath test, never had to preoblemes microphones.

Sovtek 12AX7 Unlike the WA and WB, the LPS is a very good light that I particularly recommend the lover of clean (V1 or V2) or for heavy distortion, which seeks to remain well dynamic (reversed phase).
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  • Sovtek 12AX7LPS
  • Sovtek 12AX7LPS
  • Sovtek 12AX7LPS

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Other names: 12ax 7lps, 12 ax7 lps

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