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WHY THE SET  & EFFICIENT SPEAKER APPROACH WORKS!



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Zen Triode Integrated




 
MODEL SE34I.3

6 watts x 2  or 12 watts x 1






"Exploiting the magic of the beloved EL34 / 6CA7 output tube as only Decware can!"


If you love S.E.T. amplifiers, then you know why you're here...  If you're new to the Single-Ended Triode (S.E.T.) concept, here's your chance to get it right the first time !

In it's 12th year of production, this 6 watt per channel S.E.T. amplifier's popularity has withstood the test of time. It's been upgraded three times over the years with subtle improvements, but this time the change is big! 





For the first time since it's release this wonderful amp is bridgeable into mono using the Decware Series Floating Output Bridge that eliminates the typical smear you get when you combine the channels of stereo amplifiers.


Also
for the first time in any Decware amp, you'll have meters that turn your amplifier into a tube tester for the output tubes-in real time - at a glace and without touching the amplifier you can instantly know the status of your tubes and how much power is left - (you know, can I turn it up even more - without distortion)! 


This amplifier sets the benchmark for a good S.E.T. experience that is easy to own and use.  Similar to it's 2 watt little brother, this is an execution for purists with only 1 capacitor in the signal path.  There is no feedback of any kind so it's a heavy dose of the completely 3D imaging Decware amplifiers are known for.  Of course it goes against the grain with great bass and a very extended top end, wonderful neutrality and more power than you would dream possible from only 6 watts!


It's an easy amplifier to own because there is no maintenance and no bias pots to adjust.  The tubes are not run hard and consequently last about twice as long, are easy to find, not overpriced and EL34's are the ONLY tubes that can take advantage of the Hazen Grid Mod*. Something that no other triode (like 300B's) or Tetrodes (like KT88's) can do.



You will simply turn it on and enjoy the music, every time. 



* Taking advantage of the unique qualities of the EL34 this amp comes standard with the Hazen Grid Mod.  As a result, the transparency and musicality it has sets a new benchmark that we feel far exceeds popular triodes such as the 300B, 2A3, 45, etc.

More on the Hazen Grid Technology (also known as the Christmas comes early mod) can be
found here and in our forums, here.







Buy this amp if you're competing for the biggest
sound stage or best imaging
award!  









This amplifier features an interchangeable wood base design.  That means you can choose how you want it to look or even change it's look down the road by changing the wood base it sets in! 



You can select from the Black Figured Base (shown at the top of this web page) OR the Contemporary Walnut Base (shown here).  Different woods can be selected from the shopping cart.  The Black Figured base is only available in Black.





There are also some knob choices.  From left to right are Ebony, Gold, Black, Cream, Walnut (matches the contemporary walnut base).  You can configure your amp with any of these knobs from within the shopping cart.



ADDITIONAL OPTIONS

When available, additional options can also be configured by simply adding your amp to the shopping cart and checking the boxes you want.  The options include things like a Stepped Attenuator in place of the Volume Control(s) and even V Caps, a popular high dollar coupling cap that many audiophiles request.  No options are needed to experience the flagship sound of the Zen Triode Integrated, they are options, not suggestions or requirements.






NOTE: THE FOLLOWING CONFIGURATIONS ARE SHOWN BELOW WITH A WHITE TOP PLATE TO MAKE IT EASIER TO SEE.  THE ACTUAL TOP PLATE IS BLACK!



Configuration 1 - Straight Amplifier
with one pair of inputs and no volume or gain control(s).


Add to cart

 
Single pair of input jacks - no volume control

THIS Configuration comes with the following options:

SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)
ADD 6N2P INPUT TUBES - (ADD $28)
ADD SHUGAUNG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)
UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)


ADD TO CART
We accept MC VISA AMX DISC JPC and Paypal





Configuration 2 - "Integrated" Amplifier
featuring a volume control so that it can be used without a preamplifier.

Add to cart

 
Single pair of input jacks - single volume control

THIS Configuration comes with the following options:

SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)
ADD 6N2P INPUT TUBES - (ADD $28)
ADD VARIABLE LINE LEVEL OUTPUTS - (ADD $150)
ADD SHUGAUNG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)
UPGRADE VOLUME CONTROL TO GOLD CONTACT STEPPED ATTENUATOR (ADD $100)
UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)


ADD TO CART
We accept MC VISA AMX DISC JPC and Paypal



Configuration 3 - "Integrated" Amplifier
featuring dual volume controls, one for each channel.

Add to cart

 
Single pair of input jacks - volume control for each channel

THIS Configuration comes with the following options:

SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)
ADD 6N2P INPUT TUBES - (ADD $28)
ADD VARIABLE LINE LEVEL OUTPUTS - (ADD $150)
ADD SHUGAUNG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)
UPGRADE VOLUME CONTROLS TO GOLD CONTACT STEPPED ATTENUATORS (ADD $200)
UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)
HEADPHONE JACK (ADD $150)


ADD TO CART
We accept MC VISA AMX DISC JPC and Paypal



Configuration 4 - "Integrated" Amplifier
featuring multiple inputs for 4 different sources.

Add to cart

 
Four pair of input jacks with rotary selector and volume control.

THIS Configuration comes with the following options:

SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)
ADD 6N2P INPUT TUBES - (ADD $28)
ADD VARIABLE LINE LEVEL OUTPUTS - (ADD $150)
ADD SHUGAUNG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)
UPGRADE VOLUME CONTROL TO GOLD CONTACT STEPPED ATTENUATOR (ADD $100)
UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)
HEADPHONE JACK - (ADD $150)



ADD TO CART
We accept MC VISA AMX DISC JPC and Paypal



CONFIGURATION 5 - MULTIPLE SOURCES

Add to cart

 
Four pair of input jacks with rotary selector and two volume controls.


THIS Configuration comes with the following options:

SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)
ADD 6N2P INPUT TUBES - (ADD $28)
ADD VARIABLE LINE LEVEL OUTPUTS - (ADD $150)
ADD SHUGAUNG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)
UPGRADE VOLUME CONTROLS TO GOLD CONTACT STEPPED ATTENUATORS (ADD $200)
UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)


ADD TO CART
We accept MC VISA AMX DISC JPC and Paypal




OPTIONS EXPLAINED


SHIP WITHOUT TUBES - NO 30 DAY TRIAL  (SAVE $150)

This option is for people on a tight budget.  We highly recommend getting the amp with our tubes because we know it will sound right, and the tubes have been testing in the amplifier.


STOCK DECWARE TUBE COMPLIMENT

This is the standard option.  The stock tube compliment is 1) 5U4 rectifier, 2) 6CA7-JJ output tubes, 2) 6N1P input tubes.


ADD 6N2P INPUT TUBES - (ADD $28)

These can not be substituted for the 6N1P on your order.  The amp comes with 6N1P's and these higher gain 6N2P's are so you'll have both kinds to try.


ADD VARIABLE LINE LEVEL OUTPUTS - (ADD $100)

If your configuration has a volume control, then you have the option of adding variable line level outputs.  These outputs can be used to driver a second amp (bi-amping) or a subwoofer(s).  The signal coming from these outputs will match the signature of the ampilfier. 

ADD SHUGANG GRADE A TREASURE 6CA7 OUTPUT TUBES - TUBES ARE NON-REFUNDABLE (ADD $200)

These beautiful output tubes can not be substituted for the stock Decware tube compliment.  They are purchased as a second set of output tubes only and are non-refundable.  Even if you send the amp back on it's 30 day trial, you will keep the Shugang tubes.


UPGRADE VOLUME CONTROL(S) TO STEPPED ATTENUATOR(S) (ADD $100 PER)

We offer a 20 step 1% precision metal film attenuator with gold contacts as an optional replacement for the stock volume controls.  These are not needed to hear how good the amp sounds... they're really just icing on the cake for that last 5% improvement.  -  This option waves the 30 day trial making the amp non-refundable.


UPGRADE COUPLING CAPS TO V CAPS
- NO 30 DAY TRIAL  (ADD $225)

We put top grade audiophile caps in the amplifier as standard fair, however we do offer VCAPS as the only possible upgrade.  VCAPS are what we feel to be the very best botique coupling caps made.  Despite their rather long and brutal burn-in (up to 1000 hours), the end result is justified.








WHY DOES THIS AMP SOUND SO GOOD?

It's the real deal. It's not mass produced. It is hand-built, point-to-point wiring using only part leads to limit the solder nodes. Only 2 resistors and 1 capacitor in the signal path. Solid copper ground buss. US Made proprietary output and power transformers in a high mass non-magnetic chassis of the highest quality - all built by skilled (and well paid) artists here at Decware. There's been so many 300B and 2A3 amplifier owners that have switched to the Zen Triodes that we've lost count. We bring that up because most people who haven't heard one can't wrap their head around the concept that a $1500 factory direct priced amplifier using EL34's could sound better than a retail amplifier costing many thousands of dollars more.

We voiced this amp to sound as close as possible to our original Zen Triode amp, but with a touch more warmth (just a very slight touch) making it ideal for single driver speakers and or high efficiency horns.  Naturally you have quite a bit of control over the sound of this amp based on what tubes you run in it.

OUTPUT TRANSFORMER COUPLING

The Zen is a very stable amplifier capable of driving all but the most power hungry loudspeakers because of it's transformer-coupled output stage.  This creates a hand-shake between the amplifier and the loudspeaker and protects the speaker from DC voltages should a tube ever fail.  Of course most tube amplifiers use output transformers, which tend to be the most expensive single components in the amp.  This is where most amplifiers fall short by trying to impress you with big heavy transformers of average or low quality.  The more power the amp has, the more likely it is to use moderate quality transformers - at best. 

Decware transformers were designed and are built specifically and only for THIS amplifier.  They use the highest quality grain-oriented silicon steel laminated cores with exhaustive interleaving to produce the most phase coherent wide bandwidth sound possible.  Our transformers have always been proprietary and are a
big part of the secret behind the Decware sound.

VOLTAGES

This amplifier comes standard with our World Voltage Compatible Transformer. Your amp will be automatically wired for the correct voltage for your country and be supplied with the correct removable power cord.


TUBES

The stock configuration is a pair of 6N1P's driving a pair of EL34 output tubes.  You can use 6DJ8's or 6922's in place of the 6N1P's and now  you can also explore a popular range of output tubes besides the EL34's it comes with.  These are KT77's, 6550's and KT88's.   Tube life is often 5 years on this amp with regular use.  Because this amp has the Hazen Grid Mod that activates only when EL34's are used, we ship the amp with the top grade EL34/6CA7 that have been fully tested IN the amplifier.  All tubes come with a 90 day warranty.

BIASING

The amplifier is self biasing so you NEVER have to set or adjust the bias for the output tubes.  If you've ever owned an amplifier that you had to bias all the time you'll completely appreciate this design.  Most amps are not self-biasing because it reduces the potential power output that you could otherwise get out of the tubes.  We're not overly concerned about getting the max possible power, only the max possible fidelity, and while less efficient the self-biasing approach sounds better and removes the headache of biasing and matching tubes.

IDEAL SPEAKERS

We have successfully driven hundreds of different loudspeakers ranging in efficiency from 90 to 100dB 1w/1m. On 90dB speakers it works nicely in smaller rooms or for late night out of body experiences. 94 to 96 dB speakers are almost ideal in that they let you play beyond a normal listening level and preserve the dynamic headroom. When these amplifiers were first designed in 1997 there were a minimal number of "high efficiency" speakers to choose from. Today that is no longer the case - they are everywhere. We also offer several different types of loudspeakers that will work with this amp. If you own speakers that you love and are afraid this may not drive them understand two things: A) It will drive them louder then you're expecting and B) a preamp can really turn this amp on giving you more volume before clipping.


CABLES

This amplifier is so transparent that differences between cables will now become big differences. If you don't have good interconnects or speaker cables or just not sure how good yours are... we offer reference quality cables that will let you hear its full potential. It is important to us that you hear what your new amp is capable of and most customers, even those with expensive cables, find that ours sound better.

 
SUPPORT

This amplifier is hand built in the USA by DECWARE / High Fidelity Engineering C0. It comes with a lifetime warranty to the original owner. If you purchase one second hand and ever have questions or technical problems we WILL be happy to check it out for you and service it if needed for a very reasonable rate.

We also have a support forum with many people who own this amplifier who's experiences you may benefit from. 


REVIEWS

You may read reviews on this amp going back 12 years.


HISTORY of REVISIONS

Model SE34I

SE34-I / Manufactured from 2000 to 2004

The original Integrated featured 4 output tubes, each with their own transformer making it ideal for bi-amping, but a little complicated for some people's taste.  Shown with the optional wood base that remains available for all models including the latest SE34I.2+ 
SE34I.2



SE34I.2 / Manufactured from 2004 to 2009.

The 4 output tubes were traded for 2 output tubes and 2 rectifiers making the amp simpler to operate and giving it better transparency.  The power stayed the same.
Model SE34I.2+



SE34I.2+ /
Manufactured from 2009 to 2012.

The output tube section was upgraded with the Hazen Grid Mod pushing the performance and fidelity of the EL34 beyond what any of us thought possible.  And the amp is now also compatible with KT77, KT88 and 6550 output tubes. 


This Single-ended zero feedback amplifier requires no adjustments or maintenance other than changing tubes every couple years. It is a self biasing design using the EL34 and compatible output tubes wired in triode.

Weight   16 lbs. ea.
Dimensions   8.0" H x 16" W x 12.0" D
Circuit type   Single ended Class A Triode
Power output   5.8 watts  RMS into 8 ohms
Input voltage   2.5 volts for full output
Noise / Hum   Less   than 1.5 millivolts
Response   20 Hz ~ 20 kHz
Feedback   ZERO negative feedback used
Rectification   5U4G / tube rectification
Output tubes   EL34 or KT77 or KT88 or 6550
Signal tube   6N1P or 6922 or 6Dj8  or  6N2P
Transformers   Decware
Biasing   Self-Biasing
Resistors   precision WW/MF by DALE, VISHAY
Signal Cap   Polyurethane Film
AC cord   Removable power cord
Consumption   85 watts at full power
Input jacks   RCA type 24K Gold / Teflon
Output jacks   5-way binding posts accept 8 gauge wire
Speaker dB/1w   89 dB minimum / 96 dB or higher is ideal
Warranty   Lifetime to original owner


RELATED INFO

Download Owners Manual

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MODEL SE34I.3

6 watts x 2  or 12 watts x 1


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