NEWS & UPDATES

PSVANE TUBE AUTHORIZED TUBE DEALERSHIP - Esoteric Audio Services is becoming a PSVANE Tube Dealer for their higher end models such as the Horizon and Summit series. This means Premium Authentic factory Stock - No B stock. Also curve tracing, Premium Matching and tube conditioning services will also be available if so desired for serious audiophiles / music lovers that are seeking the finest in audio reproduction.

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Hi Fi Audio Cables: My Int'l Supplier has is experiencing issues due to the complications of the modern world. Speaker cables & XLR are on hold.

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Shipping:

Standard Shipping - I pack very well with care, Never had an issue & is affordable

Boxed Standard Shipping - Incurs cost price fee for boxes and extra postal size.

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​6N23P-EB 6N23P / 6992 UPDATED - 1960's, 1970's and silver 1970 variants have arrived. There is quite an amount of tubes so I will need to time to assess, clean, measure & upload here.

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Tube Data Sheets - Are now available in images, just started & expanding over time!

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Tube Categories - Using a desktop computer you can view all discrete categories.​

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Specialised Microphonics / Noise Testing - People who are audiophile and have audiophile type Hi Fi systems, Combo Guitar amp or even even play loud music likeely need lower noise tubes, I relentlessly test both triodes of a tube for microphonics and noise. Monitored on industry standard headphones via my tube tester to my audio system.

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Balanced Tubes? - One of the options via my website you will see is "balanced tube" what does this mean?. This means both sides of the the triode are equally balanced within a 2-3 % tolerance. Usually 1 in 5 to 1in 10 tubes test like this depending on brand hence the premium price as it takes considerable time testing each triode (and noise) for many tubes to identify matches. 

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Phase Inverter Options? - Balanced Tubes with lower Gain operate better in phase inverter positions as it's associated with splitting the signal into 2 (+/-) signals 180 degrees out of phase. I have done considerable experimentation with this and in my personal view they have the biggest impact on tone after V1.​​

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High Gain Tubes? Mu is the standard measurement for gain. Preamp Tubes exhibit different measurements from tube to tube even from the same brand/type. As such I test then group them into Higher Gain or Standard Gain. 12AX7'S do frequently test over 100mu even under 80mu depending on brand.

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Curve Tracing- I will be offering Curve Tracing soon. Curve Tracing in a nutshell perform Lab grade pulse testing and standard emissions tests a vacuum tube in order to ascertain the full scope of a tubes parameters and operation. Including Grid to plate graphs at different Voltages and much much more.