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MANUAL
Latest update May 2024
Thank you for purchasing a JF Audio product! Your amp has been carefully hand-made in
Italy, using only the best parts available.
It is our hope that this amp will become a mainstay of your rig for many years to come.
With this document, JF Audio ensures you a life-time warranty against defects in
materials and workmanship; external parts like pots, jacks and switches have a 24
months warranty. In the event that your product becomes damaged, contact JF Audio and
you will receive instructions on how to go about having your amp repaired.
VOLTA
all-tube bass head
Named after the Italian physicist genius Alessandro Volta (ever heard of
Voltage? That's after him), the VOLTA all-tube bass head is the pinnacle of JF
sound and philosophy, embracing the best of old school sound and modern
technology and construction.
The VOLTA features the best of both heritages of classic tube amplification:
an "American" style tube bass preamp with a classic and organic "James" style
passive tone stack paired with a "British" style all-tube 200W power amp with
four KT88s. Thanks to our proprietary switching power supply the response is
quicker and fuller, keeping dimensions
compact and a super-light weight.
The VOLTA is a powerful, rugged and compact bass amp featuring a traditional
voiced tube preamp and passive tone stack, paired with a tube power amp fed by
our proprietary switching power supply. The VOLTA merges the very best heritage
of American and British all tube designs with modern technology and features.
Our proprietary switching power supply is the key factor for a bigger tone,
faster transient response and better damping factor, international dual voltage
operation (115/230V) and a light weight.
Floor noise is close to zero, as also transformer-related noise.
Low running internal fans keep the custom vented chassis cool.
A good amount of custom internal and external parts, including custom aluminum
knobs, are the icing on the cake of one of the very best and unique amplifiers
on the market.
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Summary of Contents for JAD FREER AUDIO VOLTA
- Page 1 Named after the Italian physicist genius Alessandro Volta (ever heard of Voltage? That’s after him), the VOLTA all-tube bass head is the pinnacle of JF sound and philosophy, embracing the best of old school sound and modern technology and construction.
- Page 2 Use them without fear of messing with your tone. MASTER This logarithmic pot controls the overall volume of the SPEAKER OUT. We tailored it to be useful in all its curve but beware: the VOLTA can be a very loud amp so start with a low setting.
- Page 3 While the VOLTA by itself can be safely fully on (green and blue lights on) without any cab connected, it's important to have a cab connected when playing and raising master volume so we suggest always checking for a connected cab before turning on the amplifier.
- Page 4 The VOLTA is a work of love and dedication, conceived and hand-made by the JF AUDIO team for you to make music (and make your life easier). Now connect a mono source to...
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