Jeff Rowland Design Group 312 - Manual (Page 13)

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(D & E) LOUDSPEAKER OUTPUT: Unscrew the knob that secures
the speaker output connectors on both the LEFT SPEAKER OUTPUT
(E) and the RIGHT SPEAKER OUTPUT (D) and pull the securing block
out far enough to allow access to the binding posts. Install the positive
(usually red) loudspeaker cable spade terminal to the positive (+)
binding post and the negative spade terminal to the negative (–) binding
post on both the LEFT and RIGHT CHANNEL. Secure the loudspeaker
connections by tightening the knob securely with your fingers.
The Model 312 will only accept spade terminations for loudspeaker
cables. Banana plugs or bare wire connections can be used but require
an optional clamp available from your JRDG Dealer.
The Model 312 has two pairs of binding posts per channel to facilitate
bi-wiring. Both sets of binding posts are active and connected in parallel
with no difference in signal quality. If your loudspeakers are capable of
bi-wiring and you wish to do so, remove the jumpers connecting the two
sets of binding posts together on your loudspeakers. Connect one pair
of binding posts from each channel to the high frequency terminals of
your loudspeakers and one pair from each channel to the low frequency
terminals of your loudspeakers.
s i g n a l & p o w e r C o n n e C t i o n s
OW N E R ’ S M A N UA L M O D E L 3 1 2 S T E R EO A M P L I FI E R
WARNING: Both positive and negative outputs are electrically active with respect to
chassis and/or system ground potential. Therefore, this amplifier cannot be used
in certain loudspeaker switching configurations, such as those used in retail demonstrations.
Failure to avoid these precautions may short the outputs to ground and can result in damage
to the amplifier and will void the warranty. Certain subwoofer speakers which derive signals
from amplifier outputs will require additional circuitry to properly isolate the amplifier output.
Please contact JRDG before connecting these types of subwoofers.