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DECWARE Zen Triode Amplifier
model SE84B
You can find extensive information on this
amplifier on our web site, including my original design log. Also there are several reviews posted there by actual SE84B owners
that will help you decide if this is for you or
not.
This amp is being compared side by side to
amplifiers costing 10 times as much.
SPECIFICATIONS
• 5 watts x 2 or 9 watts x 1
The fidelity of this amplifier can be a tremendous insult to high dollar tube amps. Designed as a single ended triode operating in
pure class A1, the SE84B features two chan-
nels for stereo operation, or can be
bridged as a mono block.
It uses the magic sounding Svetlana SV83 or the legendary
6Bq5/EL84 output tubes, one per
channel. The signal path has only
one capacitor, no hook-up wire, and
only around 12 solder points between the input jack and output
jack. The sound of this little amplifier is sweet!
For people just starting out, a good pair of
interconnects and CD player are all that is
need to directly drive this amplifier through
it’s own variable input control.
We recommend speakers of 90dB or higher
based on feedback from our customers.
• Input sensitivity 2 volts minimum
• Input impedance 100,000 ohms
• Output impedance < 1 ohm
• Response +/-2dB 30Hz~20KHz
• Signal to Noise Ratio < 90 dB
• Class A1
• Input Voltage 110/120 Volts 50/60C
• Outputs SVETLANA SV83’s
• Input SVETLANA 6N1P
• Rectifier 5Y3GT Phillips
• Operates 4, 6 or 8 ohm speakers
• Size: 11” D x 6” W x 7” H
• Weight: 13 lbs.
FEATURES
• Our own custom output transformers
• Single Ended Triode operation
• No negative feedback is used
• Self-biasing eliminates adjustments
• Dual Voice Input Bias Switch
• Stereo or Mono operation
• Heavy Duty Binding Posts
• EL84 or SV83 Output tubes
• 6N1P Dual Triode Input Stage
• Gold / Teflon Input Jacks
• ALPS 100K Input Level Control
• Point-to-point hand wired & built
• No circuit boards
• Short single path
• Tube rectified computer grade supply
• High Reliability / Zero Maintenance
• Can be re-tubed for less than $40
bucks
• Pre-burned in and tested
• Optional cage available
• Custom Chassis, powder coat finish
• AND A 30 DAY HASSLE FREE RE-
We also make this amplifier available in a kit
for experienced hobbyists who want the thrill
of building their own. And we now have prepunched high quality chassis available to
make it an easier project.
This amplifier is overbuilt, with top quality
parts, silver/ceramic tube sockets, and
polypropelene power supply (rev B). The top
mounted speaker posts allow for proper
strain relief of higher end cables. The dual
bias switch gives the amplifier two distinct
different voices, and accommodates a wide
variety of alternate input tubes.
Each amplifier is backed with a 30 day
money back guarantee so that you can be
SURE you like it. At the time of this printing
I have sold 118 units to people who will not
give them back under any condition.
Customer service is exemplary.
HOW TO GET ONE NOW
Orders can be taken by phone
(309) 671 2428
DECWARE High Fidelity Engineering
103 Spring Street
Peoria, IL 61603
e-mail: [email protected]
web: www.decware.com
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