Related Manuals for Decware TORIIJR
Summary of Contents for Decware TORIIJR
- Page 1 T O R I I J R O W N E R S M A N U A L MANUAL NO. 02 REV. DATE: 09/2015 The Zen Torii Jr. Amplifier MODEL TORIIJR Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 2 QUADS of EL34’s UNLESS you RE-BIAS." " Have no fear, adjusting the bias is super easy in a DECWARE amplifier and will be covered in detail at the end of this manual. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 3 6922 ON/OFF BIAS ADJ FIG. 1! Input Switch Speaker Switch Points to Selected Hi = Rear RCA Jack Lo = Front Turn Down Both Vol. Controls Before Turning Amplifier ON Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 4 That said, we are certain that there is nothing you would want to change about the sound of the TORII JR, so this isn’t likely to be a problem. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 5 O W N E R S M A N U A L THE DECWARE ZEN LAYOUT All Decware amplifiers employee a Zen Layout, but this particular amp is one of the best. No circuit boards are used and if you’ll notice, the layout is symmetrical and done in such a way that the entire audio circuit can be created with only the parts leads themselves.
- Page 6 • Direct coupled 6922 based input stage, same as in the TORII MK4, gives a world of opportunities for subtle changes to the voicing by simply trying different brands of this very popular audiophile input tube. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
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Page 7: Operation
You will notice when you turn the amplifier off that the OA3’s may flicker on and off a few times as well, doing basically the reverse of when you turned the amplifier on. This is normal. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com... - Page 8 While we’re talking about temperatures, it should be noted that overall heat was a careful part of the design, not an after effect of the design. Heat will be discussed in it’s own section of the manual. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 9 All tubes supplied in Decware amplifiers are hand picked and meticulously tested and guaranteed for 90 days which is plenty of time to determine if you have an issue with one.
- Page 10 Clearly, the best way to know if any of the above mentioned tubes are compromised is to simply have a complete set of new tubes that are verified good. Decware would obviously be your first choice for getting the best quality tubes for your amplifier.
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Page 11: Input Sensitivity
O W N E R S M A N U A L HEAT The TORII JR. has been designed like many Decware amplifiers with a non-ventilated chassis and a black steel plate to hold and distribute heat evenly throughout the amplifier. -
Page 12: Source Selection
SPEAKER IMPEDANCE SWITCH The TORII JR uses the new DECWARE UFO wide bandwidth output transformers that feature a dual output impedance to accommodate different loudspeakers that fall primarily into but not limited only to the typical 4 and 8 ohm speakers. Since impedance is reflected from the speaker backwards through the output transformer... - Page 13 The Zen TORII JR can be wired for any country in the world. If you are in one country and moving to another, just send the amp to Decware and have it rewired and fitted with the proper power cord for the destination country. The IEC connector on the TORII JR is the same high quality unit used in all of our amplifiers featuring an integrated fuse...
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Page 14: Input Tubes
If you desire to have a different sounding output tube, please refer to the end of this manual on how to bias the amp for the specific matched quad of tubes you intend to install. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com... -
Page 15: Tube Biasing
fidelity later even higher. Other popular tubes like KT66, 6L6, KT77, KT88 etc., have the cathode and suppressor grid internally connected with a piece of wire and can therefor not benefit from the Hazen Grid Mod. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com... -
Page 16: Tube Rolling
REPLACEMENT TUBES Replacement tubes are always available from Decware’s website or you can call us directly. The URL is: http://www.decware.com/newsite/tubesets.htm Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com... - Page 17 If you get hum, then you either have a ground loop between that component and the amplifier, or that component is bad. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
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Page 18: Sound Quality
The older your amplifier gets the better it will sound. This helps to explain why used Decware amps exceeding ten years of age often get their original purchase price on the used market in the rare event that they get sold. -
Page 19: Speaker Placement
We can often prevent an unnecessary trip back to Decware by consulting you over the phone and helping you to troubleshoot the problem. Decware amps are built to outlast you, and are frankly damn hard to break which we understand is definitely not the norm with many mass... - Page 20 To set the bias you will need a digital volt meter, and a small flat blade screwdriver. Below are two examples of digital multimeters from Parts-Express.com that run less than $15.00 Part # 390-738 Part # 390-500 Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 21 O W N E R S M A N U A L Plug the RED (+) and BLACK (-) probes into the meter and set the meter to read DC volts on the 2 volt scale. 2 VOLT SCALE Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 22 O W N E R S M A N U A L Some multimeters are auto-ranging in which case you would only need to set it to DC voltage. DC SCALE Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 23 These holes are where you stick the probes from your meter. Insert the black probe in the left hand socket, and insert the red probe in the right hand socket as shown below. BIAS ADJ. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 24 Alternate tubes may be used in this amplifier such as 6L6, KT77, KT66, 7027. All of these tubes however will require considerable adjustment to the bias screw when compared to EL34. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...
- Page 25 1 minute. :) It probably should be mentioned that most Decware amplifiers are self-biasing meaning there are no adjustments to the bias… not even when changing from one type of tube to another…...
- Page 26 I’ll be more than happy to talk with you and lead you to an answer that makes sense. -Steve Deckert -Decware High Fidelity Engineering Co. Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com...