JJ ECC803s / Hi-Performance 12AX7 Preamp Vacuum Tube
The JJ ECC803s is a hi-performance 12AX7 that has a spiral wound filament to reduce noise and hum. The construction is different from the JJ ECC83 in that the plates are more conventional, but have a special heat dissipating fin that serves to improve efficiency and gain. The plates of the tube are also "over-sized" (longer) as compared to most standard 12AX7 tubes. This over sized plate structure improves details in the bass and low mid-range responses. If you want that great JJ tone in a hi-performance package, then these are for you.
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A good tube for upgrading the stock 12ax7 of my integrated amplifier.
reviewed by: Adrian
Perfect replacement for an old Crate 5 watt amp. No micro-phonics at all. Very crisp and clean sounding preamp tube.
reviewed by: Buckwheat
Great phase inverter tube for Mesa Recs esp for the Triple. My Sons Band mates liked them.
reviewed by: Drew
Great tube works as advertised not noisey or microphonic. I just put all new tubes in my 68 Fender Pro Reverb, with all the other tubes and solid state rectifier, the Pro has never sounded better.
reviewed by: David
Great Sound and very low noise
reviewed by: Nott
Great sounding tube large sound stage great for marshall
reviewed by: Richard F
I love these tubes. Smooth, plenty of gain and eh high end is sweet and never piercing.
reviewed by: Brian
Love these. Gets the job done.
reviewed by: Chad
I put 4 of these tubes in my Dumble clone and it sounds as good as the NOS GE 12AX7A/7025 tubes IMO!!!
reviewed by: Matt
Great tube, works as it should
reviewed by: Andrew
Sound very good!!!
reviewed by: Sébastien Gilbert
Great Sounding tube! Sound Like A JJ but has tighter lows!
reviewed by: James