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STS-88 'Super Twin Stereo

SPX-3030 "Rack Mount Stereo Power Amp"
STS-88 'Super Twin Stereo




 

 

  


Retro Cage Head 

          
Super Twin Stereo 88


Model No. STS-88

Stereo Class AB ultra-linear audio reproduction using vintage KT88'S for crystal clear fidelity. Separate volume and tone controls for each channel to give you the ultimate in tone control...


Price: MSRP................. $1895.00


Retro Cage Head...............$1195.00










Overview

 

The FRENZEL STS 88 "Super Twin Stereo 88"  is the stereo dual channel version of our classic Super Twin Plexi.   It has two separate preamps and power amplifiers. The preamps comes standard with  one channel voiced for the Fender Twin 5F8A tones and one channel voiced for the Marshall Plexi tones plus many unique new features including KT88's in place of the 6L6's for more head room and fidelity, FRED solid-state recrtifiers for tight dynamic bass, and  separate volumes, tone stacks, and presence controls with Edge boost for each channel to allow you to fine tune the sound just the way you like it... 
 


Standard Features

Input and Output Jacks isolated from chassis for low noise, eddy currents, and hum.

Star ground system to reduce induced current chassis noise.

Rock solid point-to-point hand wiring using only the best of parts...low noise tubular polypropylenes caps, metal film resistors, ceramic sockets, Switchcraft jacks...etc.
 
Channel 1 (Type F) voiced for Fender 5F8A Twin tones. Channel 2 (Type M) voiced for Marshall Plexi tones...or you can use an AB-Y switch to switch between Channel 1 and Channel 2 or blend them and create your own distinct tones.

Classic PRESENCE controls for extended highs with Edge pull switches for  more dynamic and less compressed tones. 
 
Separate Volume with Tone Stacks, and Presence controls  for each channel  to provide precise control of tones.

Classic 60's JTM45 - Bassman 5F6 style 3-BAND TONE STACK for extended flexibility in shaping your tone.
 
Class AB   ultra-linear KT88's  for the warm dynamic vintage tones.

Preamp and driver tubes are JJ 12AX7's known for low noise and linearity. You may also use 12AT7's or 12AU7's for different tones and less preamp overdrive.

Oversized "ultra linear" output transformers.
 
Speaker Impedance Selector Switch for each channel which allows you to use 4, 8, or 16 ohm speakers.
 
Solid-State FRED ultra fast recovery rectifiers for tight dynamic bass response.
 
Standard IEC plug-in  three prong grounded power cord.

Classic knobs and open style chassis.

Vintage jewel pilot light and classic toggle switches.
 
Standby switch to turn off plate voltage during warmup to prevent  cathode stripping of the tubes...and to extend tube life when amp is not in use.

Retro Vintage Cage - heavy duty steel mesh cage provides protection and excellent ventilation for tubes. Includes Fender style strap handle with nickel plated end caps.

Compact 17" x 10"  lightweight non-magnetic aluminum chassis with bottom cover plate and rubber feet.
 
Tube complement: 6  - 12AX7's, 4 - KT88's
 
FRONT PANEL: 
   
 CHANNEL  1

- INPUT JACK 
- GAIN
- BASS
- MIDDLE
- TREBLE
- MASTER
- PRESENCE WITH LOUDNESS EDGE SWITCH
 
 
CHANNEL 2

- INPUT JACK 
- GAIN
- BASS
- MIDDLE
- TREBLE
- MASTER
- PRESENCE WITH LOUDNESS EDGE SWITCH
 
POWER
 
- STANDBY
- PILOT LIGHT
- POWER SWITCH
 
REAR PANEL:
 
- POWER CORD
- FUSE
- CHANNEL 1 SPEAKER OUT JACK
- CHANNEL 1 IMPEDANCE SELECTOR 4 - 8 - 16
- CHANNEL 2 SPEAKER OUT JACK
- CHANNEL 2 IMPEDANCE SELECTOR 4 - 8 - 16
 
SPECIFICATIONS:
 
- Frequency Response: 20 to 20,000 hz
- Distortion: Less than 1% 
- Input Impedance:  1 meg ohms 
- Output Impedance: Selectable 4 - 8 - 16 ohm
- Input:  500mv RMS for full output
- Output Power: 30 Watts per channel
- Power Consumption: 120V 60hz - 240VA
- Dimensions: 17" W x 10" D  x 7" H
- Weight: 25 lbs.


CHASSIS VIEW FRONT:




Upgrade Options

These options allow you to  customize your amp to meet your special individual requirements.

1. DUAL CHANNEL EFFECTS LOOP -   pure tube buffered serial effects loop designed to perfectly match the low impedance solid-state pedal levels with high impedance tube levels.   Add $150.00.

2. DUAL EFFECTS LOOP FOOTSWITCH - adds jack to rear panel for footswitch  control of the EFFECTS LOOP bypass switch. Includes classic heavy duty footswitch with LED. Add $120.00

3. DUAL EDGE FOOTSWITCH - adds jack to rear panel for footswitch control on the NNFB EDGE switch. Includes classic heavy duty footswitch with LED. Add $120.00 

4. 100 - 240 VOLT POWER TRANSFORMER - for operation outside the USA. Please specify line voltage.  Add $75.00 

5. DIFFERENT TYPES OF OUTPUT TUBES - provides choice of output tubes for each channel. For instance EL34's on Channel 1 and 6L6's on Channel 2. Email us for pricing. 


Reviews


Love the amp Jim, great sounding piece of equipment. Nothing sounds better than a Stereo Tube Tape Echo into a Stereo Tube Amp! I have found tone heaven. Thanks again, Kevin M. (Nebraska)  

Thank you Jim , I really do love the tones this amp produces - the Edge boost is a very nice feature and I will find good use of that in my playing. This amp tunes  is very reminiscence of the Rivera Amp tones  I have loved and used over the years. I look forward to getting this baby out on the gig.  As a professional Guitarist since the age of 17, I have pushed thru all the commons in pursuit of the best tone for me. That is what lead me to building my own guitars and later launching my own guitar company over twenty-three years ago. I started playing a  Mesa Boogie in 1979 and had owned many combos and "Refrigerator Racks" of the  late 80's. Then moving back to combos with Rivera Amps in the late 90's and I was pretty happy. A few years ago I wanted to go stereo again( without the refrigerator).  I talked to all kinds of boutique amp designers every year at NAMM, then I found Frenzel Amps a few months ago. I talked to Jim about what he had in his line with the features I was looking for and there it was-  the STS-88. Several other amp designers had wanted three times as much to do what I was asking for!  My amp arrived a few days ago and I  put the amp thru it's paces. I found that the tone of the amp was rich and lush as I had come to expect from the Riveras'. One feature that I really dig is the "Edge" boost.  The STS-88 has great harmonics and a pallet of color that put a smile on my face! With the custom cabinets I designed this amp really sings.  I  run my effects through the front of the amp and use my  pedals to give me crunch and overdrive tones.  I find that  the STS-88 really responds well to them all. As a guitar designer this amp really shows off the tone of my instruments which complements what I do - and again, that puts a smile on my face! As it does to those who hear me play! Thanks Jim, you hit this one outta the park! Touch Singleton (California)

For more reviews please check our Customers Reviews page.  



 

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