O W N E R S M A N U A L
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SHORTING SPEAKER WIRES
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When your tube amp is on and you want to unhook your speaker wires without turning
the amplifier off, it is an acceptable practice to SHORT the speaker wires TOGETHER.
Yes, it’s true, this protects the output transformers from operating without a load. They
can handle a dead short ALL DAY LONG without issue. This is JUST THE OPPOSITE
of most solid state amplifiers, which as you may know, will blow up instantly if you short
the speaker wires together, even for just a split second.
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DECWARE TRANSFORMERS
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Since the output transformer is the only component your hearing other than the two
resistors and one capacitor inside the SE34I.5 it should become obvious that this is a
critical component relative to the overall fidelity of the amplifier. And given that, the
quality of the power transformer and power supply in general is at the heart of the
amplifiers performance.
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Our transformers cores (shown left) are made with M-6 29
Gauge - 0.014" (0.355 mm) Grain Orientated Electrical
Transformer Steel Lamination with steam blue oxide on the
surfaces and edges to minimize stray losses between
laminations.
This squared hysteresis loop iron-silicon alloy was expressly
developed to provide lower core loss with higher permeability
in the rolling direction. Grain oriented laminations are supplied
in the stress relief annealed condition. The elementary patterns of the crystals in the
material are "oriented", or arranged so that the axis of easiest magnetization is nearly
parallel and aligned in the direction of rolling. The alignment is accomplished by a
special cold-rolling and annealing processes. This allows the product to withstand
more severe vibration and shock and enables the following:
1.
Lower core losses as a consequence of design.
2.
Higher initial permeability.
3.
Higher permeability at higher inductions.
4.
More stable VA/Temperature relationship over a wide range of ambient
temperatures.
5.
Most importantly, Superior Bandwidth and The Coherency Decware amplifiers
are famous for.
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Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com
