Klipsch P-27S Connecting the Loudspeakers, The Terminal Panel, Bi-wiring, Standard Single Wiring

Connecting the Loudspeakers - 2 Connecting the Loudspeakers - 3

The Terminal Panel

As supplied, positive and negative terminals of the high and low frequency terminal pairs are strapped to- gether with a two-way strap. This is how you should prepare the terminal panel for each wiring option.

Standard Connection Bi-wiring Connection

Bi-wiring

Bi-wiring reduces unwanted interactions between the bass drivers and the midrange and treble units. True bi-wiring is connecting separate cables from the bass terminals and the midrange/treble terminals to a common connection at the amplifier. Several cable manufacturers produce specialized cables, where one cable jacket contains four cables, thus enabling bi-wiring within one cable cluster. This eliminates the need to run separate cables and simplifies connection. In any case, the method of connection is the same.

Prepare the crossover panel as shown on the previous page. Proceed as with standard wiring, but connect one cable to the bass terminals of the speaker. Connect a second cable to the midrange and treble terminals. Refer to the diagram. After connection, tighten all the terminals with the supplied wrench as shown previously.

HF

AMPLIFIER

Right Speaker

Left Speaker

No preparation	Loosen the terminals.
needed	Remove the straps
	Re-tighten all
	terminals hand tight

Standard (Single) Wiring

The straps are left in place as supplied. Connection may be made to any pair of terminals. You will need two loudspeaker cables of equal lengths, one for each loudspeaker.

Partially unscrew one positive and one negative terminal. Connect the positive (+ RED) terminal of the loud- speaker to the striped conductor, or (if you are using custom cable) to the conductor designated by the cable manufacturer. Connect the negative (– BLACK) terminal to the plain conductor. Do not connect the amplifier at this time.

Bi-amping

Connecting each loudspeaker drive element to separate amplification offers the highest possible performance level. It is not necessary for the amplifiers in the treble and bass sections to be identical. In fact for tube ampli- fier enthusiasts, there are advantages to using smaller amplifiers in the treble and midrange sections as the smaller transformers offer the significant possibility of extended, sweeter treble response.

To multi-amp, the following criteria are essential:

•The amplifiers should be phase coherent. In other words, all amplifiers should be, by design, phase non-invert- ing or phase inverting; or if not, should be connected so as to be all phase non-inverting or phase inverting.

•The amplifiers must have identical voltage gains, or should be set up to have identical voltage gains.

•The amplifiers must have low residual noise characteristics, especially in the midrange and treble sections.

•Amplifiers in corresponding channels must be identical; i.e., both bass amplifiers must be the same and so on.

HF

AMPLIFIER

Right Speaker

Left Speaker

If any of the above conditions are not met, separate amplification will be significantly		worse than ordinary bi-
wiring. If you are unsure about these concepts or unsure if your amplifiers meet these		criteria, it is essential that
you consult your Klipsch specialist dealer before proceeding further.
MID /
TREBLE		Bi-amping
AMP
	The mid/treble amplifier is bi-wired
BASS	(One channel shown)
AMP

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