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AMT Electronics Tube Guitar Series SS-20 Guitar Preamp  

Item #: 
1274319726457
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The SS-20 Guitar Preamp from AMT Electronics has incredible Clean, Overdrive, Distortion, and Lead tones in a compact tube valve driven pedal. AMT is raising the bar in guitar pedal design and offers ... Click To Read More About This Product

IN STOCK & READY TO SHIP

Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Price:
$34995.00
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Ship to Store Available in: 3-7 Days (estimated) Denver, CO (5.5  mi) View More Stores For Availability


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Overview

The SS-20 Guitar Preamp from AMT Electronics has incredible Clean, Overdrive, Distortion, and Lead tones in a compact tube valve driven pedal. AMT is raising the bar in guitar pedal design and offers affordable high end tone pedals. This one is going to be finding its way onto lots of pedal boards. AMT's principle and motto for this device is it is the VALVE that sounds and sings, however, the transistors do their best to help it sound in all its beauty and originality.

In order to achieve the full opening of input valve cascades working in the "hottest" conditions the giant amplitude of one hundred and more volts is necessary. The dynamic properties characteristic to valve-based preamps are implemented in the SS-20 preamp due to the elimination of signal limiting OA (feed level of 20-25V) in the part of preliminary amplification and using special cascades capable of reaching 250V amplitude with nonlinearity similar to a 12AX7 triode. Thus, AMT has managed to achieve full dynamic characteristics of guitar signal without usual hybrid "squeeze" as well as assign special sound character to SS-20.

Special attention was also paid to to the SS-20's clean channel-in this section AMT has also followed the way of preserving the dynamics of guitar signal with simultaneous formation of soft "nonlinearity" inherent in the cascades on vacuum triodes. It also allowed us to escape both the "squeeze" and "refinement" peculiar to many clean-channels of hybrid devices.

The basis of the inner preamp structure is the principle of maximum use of amplification and nonlinear transformation of the valve part of the device. Thus, the semi-conductor part of the hybrid practically does not participate in the sound limitation (except for the use of preamp in LEAD mode at Gain LEAD level of higher than 7) and the entire spectrum is formed by the valve preamp part. In the preamp stage the quantity of semi-conductor cascades is not used in the sound processing, and in the absence of jacks in SEND and RETURN the signal is forwarded to OUTPUT through compensating circuits directly from the output triode cascade. Therefore it is advised to use high quality minimum length cables for connecting the preamp output with guitar amplifier input.

The SS-20 guitar preamp uses the original cabinet emulator, however, ONLY in direct out mode. It models the amplitude-frequency characteristics of guitar amplification systems for the most accurate reproduction and ease of recording direct. Secondly, it simulates own nonlinearity of dynamic head peculiar to instrumental loudspeakers, that in its turn colors the output signal with short-range harmonics making it live and closer to real. AMT's unique speaker emulator circuitry supplements the signal with 2nd and 3rd harmonic with smooth increase in their level at signal level growth (it actually is similar to instrumental head in the closed cabinet), not found on other manufacturers pedals.

Features
  • Two high-grade channels CLEAN and DRIVE with the possibility of Drive-channel operation in two basic modes: moderate sensitivity (CRUNCH) and high sensitivity (LEAD).
  • Effects Loop Send and Return.
  • Operation via both direct unaltered signal for guitar amplifiers heads, combos, and speakers (OUTPUT jack) as well as speaker cabinet compensated output for mixing consoles, computers, or other recording devices.
  • Cabinet emulator in direct out mode
  • High-grade high-voltage feed of triodes.
  • Complete elimination of operational amplifiers traditionally used in hybrid preamps for sound amplification and processing.
  • Application of special semi-conductor amplifiers modeling triode-based harmonics and providing signal amplitude necessary for high-grade valve operation.
Specifications
  • Power: External Adaptor AC 120V 12V DC .8A (included)
    Tubes: 1 x 12AX7 Incandescence - 12.6V (6.3V)
    Anode Voltage: DC 290V

    Jacks:
    Amplifier Output - for Combo Connection
    Mixer Output - for Mixer/Recorder Connection
    Effects Loop Send and Return

    Input In
    Bypass: Left F Switch - DRIVE effect on/off
    Right F Switch - DISTORTION effect on/off
Warranty

GUITAR CENTER'S PRO COVERAGE
Pro Coverage gives you added warranty protection for your gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Click To Read More About This Product.

Pro Coverage includes
  • Accidental damage protection
  • Expedited repair or replacement
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to five years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews
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Review Snapshot

by PowerReviews
AMT ElectronicsTube Guitar Series SS-20 Guitar Preamp
 
5.0

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

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Reviewed by 2 customers

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(8 of 29 customers found this review helpful)

 
5.0

amazing sound

By david

from maryland

Comments about AMT Electronics Tube Guitar Series SS-20 Guitar Preamp:

thats wonderful amazing sound for any style I made john petrucci's guitar sound thats very closed to the original

 
5.0

I'd buy other model of AMT Preamp

By Volodymyr

from undisclosed

Verified Buyer

Comments about AMT Electronics Tube Guitar Series SS-20 Guitar Preamp:

Great sound! Clean channel really awesome! Small design,liked very much.

Displaying reviews 1-2

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