Speaker Binding Posts - Decware SE34I.5 Owner's Manual

O W N E R S M A N U A L

Bias meters set up like this can also tell you at a glance if a tube has shorted or failed

unexpectedly by suddenly reading abnormally high or low on one channel relative to

the other channel. They can also reveal faults in a tube that may not show up until

several minutes or hours after the amp has warmed up. In this case you would notice

one channel consistently clips sooner than the other. This condition can not be

discovered by the vast majority of tube testers, as the faulty tube will test perfectly ﬁne,

so the meters are the only way to discover this problem - which of course you would

also hear - but if you ONLY heard it and did not have the meters, you would have no

idea what is causing the problem.

CLIPPING!

With 6N1P input tubes and a standard 2 volt souce such as a CD player, the volume

control can typically reach 2/3rds before the amp runs out of steam (clips). With a

6N2P the volume control will typically reach 1/2 way up before clipping. Of course if

you have a source with higher than 2 volts of output, the SE34I.5 will clip sooner.

SPEAKER BINDING POSTS!

The SE34I.5 features heavy duty (almost bomb-proof) connectors for the speaker

wires. They are the standard 5-way posts with standard spacing. They accept banana

jacks, large spades, or bare wire up to 10 AWG in thickness. The are color coded with

a RED and BLACK base. Black is the NEGATIVE speaker connection and RED is the

positive speaker connection. In this ampliﬁer (like most) the two black speaker jacks

are connected together and tied to ground. There is a switch next to each pair of

binding posts to set the speaker impedance between hi and lo. Please try both

positions with music playing several times until you settle on the better sounding

setting. Unlike many amps, this one works in both settings.

BRIDGING INTO MONO!

This amp can be run as a mono block (bridged) in two ways:

A) Both the positive speaker jacks are connected together in parallel as are the

negative jacks.

B) The left negative jack is connected to the right positive jack (series) and the

remaining to unused posts will then be used to drive the loudspeaker.

We recommend trying both ways. Way B usually sounds better and requires a small 12

inch piece of wire to connect the two binding posts.

Decware High Fidelity Engineering Co., East Peoria IL, USA www.decware.com

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