Blackstar HT Studio 20 - 20W Tube Amplifier Head

Blackstar HT Studio 20 - 20W Tube Amplifier Head

Blackstar HT Studio 20 - 20W Tube Amplifier Head

Blackstar HT Studio 20 - 20W Tube Amplifier Head


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Product Highlights

  • 2x EL34 Power, 2x ECC83 Preamp Tubes
  • 2x Footswitchable Channels
  • Master Volume & Enhanced Tone Controls
  • Proprietary Infinite Shape Feature (ISF)
  • Digital Reverb
  • Speaker Emulated Output
  • Effects Loop
  • Includes 1-Way Footswitch
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  • 1Description

The HT Studio 20 Head from Blackstar is a 20W tube amplifier for guitar that uses two EL34 power tubes and two ECC83 preamp tubes, and has two footswitchable channels with built-in digital reverb, an effects loop with a level control switch (+4 dBV or -10 dBV), a 12" Celestion speaker, as well as a stereo speaker emulated out for recording or driving headphones. Blackstar's proprietary ISF (Infinite Shape Feature) circuit works in conjunction with the tone control for fine-tuning, so you can effectively dial in the specific sound you desire. Its small size and versatile features make the HT Studio 20 an ideal amp for use in recording studios, for live performance, practice, and more.

The HT Studio 20 features separate Clean and Overdrive channels. The Clean channel provides a wide range of clean and moderately overdriven tones with voicing that is typical of many amplifiers with Class A type performance. The overall character may be adjusted with the Tone control from dark and warm, through to bright and sparkling.

The Overdrive channel is characterized by a tone which is high in gain, but lacks any of the detached top-end fizz found in similar amps. The preamplifier and power amplifier deliver natural-sounding overdrive that will clean up nicely as the guitar's volume is reduced, even at the most extreme settings. The Overdrive channel also features Bass. Middle and Treble EQ controls, along with the ISF (Infinite Shape Feature) control. Working together, these controls offer an infinite number of alternative tone choices.

Finally, the guitar amplifier's two-channel design has been optimized for either preamp or power amp overdrive, or a combination of both with lush tube tones. The amp's natural-sounding digital reverb enhances the clean and crunch tones. The included one-way footswitch allows you to switch between the Clean and Overdrive channels.

Two footswitchable channels allow you to toggle between clean and overdriven tones
ISF (Infinite Shape Feature) can take your tone from the USA to the UK and anywhere between in seconds
Speaker emulated out can be used for recording, to run a line out to a PA, or drive headphones
Effects loop with effects level switch
In the Box
Blackstar HT Studio 20 - 20W Tube Amplifier Head
  • Power Cable
  • Limited 3-Year Warranty for Amplifier
  • Limited 90-Day Warranty for Tubes
  • Table of Contents
    • 1Description
    Amplifier Sectionuftaywdyvfcxewdtxbbcfy
    Amplifier Type Tube
    Output Power 20 W RMS
    Channels 2
    Tube Types 2 x Preamp 12AX7/ECC83
    2 x Power EL34/6CA7
    Output Impedance 8/16 ohms Mono
    Effects Loop Yes, Series
    Built-In Effects Digital Reverb, Distortion/Overdrive
    Master Volume Yes
    Inputs 1 x 1/4" Mono Instrument
    1 x 1/4" Mono Footswitch
    1 x 1/4" Mono 
    Outputs 1 x 1/4" Mono Effects Send
    1 x 1/4" Stereo Emulated Speaker
    3 x 1/4" Mono Speaker
    Tone Section Channel 1: Channel Volume, Tone
    Channel 2: Bass, Channel Volume, Gain, Mid, Tone, Treble
    EQ 4-Band Semi-Parametric
    Speaker Section
    Power Rating 20 W
    Dimensions (WxHxD) 20.4 x 11.1 x 11.0" / 517.0 x 281.0 x 279.0 mm Amplifier
    Weight 26.90 lb / 12.2 kg Amplifier
    Packaging Info
    Package Weight 35.2 lb
    Box Dimensions (LxWxH) 28.0 x 15.0 x 13.0"
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