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Introduction
Thank you for purchasing this Blackstar HT Studio 20 amplifier. Like all our products,
this amp is the result of countless hours of painstaking Research and Development
by our world-class design team. Based in Northampton (UK), the Blackstar team
are all experienced musicians themselves and the sole aim of the development
process is to provide guitarists with products which are the ultimate tools for self-
expression.
All Blackstar products are subjected to extensive laboratory and road testing to
ensure that they are truly uncompromising in terms of reliability, quality and above
all TONE.
The HT Studio 20’s flexible two channel design features the unique patented ISF
(Infinite Shape Feature) control and although it has a comprehensive control set, it
is still simple and intuitive to use. Please read through this handbook carefully to
ensure you get the maximum benefit from your new Blackstar product.
If you like what you hear and want to find out more about the Blackstar range of
products please visit our website at www.blackstaramps.com.
Thanks!
The Blackstar Team
Features
The HT Studio 20 is a highly versatile amplifier suited to a wide range of playing
styles and situations.
The Clean Channel provides a wide range of clean and moderately overdriven
tones. The voicing is typical of many ‘boutique’ style amplifiers with a ringing Class
A type performance. The overall character may be adjusted with the Tone control
from dark and warm through to bright and sparkling.
The HT Studio 20 Overdrive Channel is characterised by a tone which is high in gain,
but lacks any of the detached top-end ‘fizz’ often found in many similar designs.
This is a result of unique preamplifier and power amplifier shaping techniques,
which also benefit the player in the way the overdrive cleans up beautifully as the
guitar volume is reduced. Even at the most extreme settings, the Overdrive Channel
remains natural sounding.
The HT Studio 20 Overdrive Channel also has its own highly flexible EQ section
providing a variety of overdriven tones. The patented ISF (Infinite Shape Feature)
control is unique to Blackstar Amplification and represents a major step forward in
tone shaping flexibility. The ISF control shifts the response of the three control tone
stack between a US type response at one end, and at the other a UK type response.
Importantly, in between the two extremes lie an infinite number of alternative tone
choices that would be otherwise unavailable.
The HT Studio 20’s two channel design has been optimised for either preamp or
power amp overdrive, or a combination of both. The carefully voiced preamp and
cathode biased dual EL34 power amp configuration provides the user with the
ability to create wonderfully lush valve tones. From mild overdrive that cleans up by
backing off the guitar volume control, to highly saturated distortion, this amp does
it all.
The HT Studio 20 also features a completely natural sounding digital reverb, which
is outstandingly musical on both clean and crunch tones and raises the benchmark
for guitar amplifier specific reverb design.
