Pioneer S-3EX Bi-AmplificationConnections, Vertical Bi-Amping, Horizontal Bi-Amping, Speaker

Bi-Amplification Connections

Bi-Amplification allows the best performance when using dedicated amplifiers for low- and mid-to-high-frequency sections. There are two possible configurations, commonly referred to as horizontal and vertical bi-amping.

Caution

Remove the shorting links before connecting speaker cables in bi-amplifications connections. Failure to do so may result in damage to your amplifiers.

Vertical Bi-Amping

With this configuration, identical stereo amplifiers are used for each speaker system. One channel of each amplifier drives the low frequency section and the other channel drives the high frequency section, as shown below.

Connect one set of wires and amplifier channel to the bottom set of binding posts (bass driver-specific network).

Then connect a second set of wires and the other amplifier channel to the top binding posts (CST-specific network).

Take care to connect both (+) wires to the (+) amplifier terminals and both (–) wires to the (–) amplifier terminals.

Pre-amp (rear)

OUTPUTOUTPUT

(Only one channel shown)

Horizontal Bi-Amping

With this configuration, you may use different stereo amplifiers for the low- and mid-to-high-frequency sections of the speaker system (e.g., tube amplifiers for high frequency and solid state for low frequency). Each channel of one amplifier drives the low- frequency section of each speaker system and each channel of the other amplifier drives the mid-to-high-frequency section, as shown below.

This method requires that both amplifiers have the same gain; otherwise an imbalance will be heard between the low- and mid- to-high-frequency reproduction from the speaker system. If in doubt, please consult your local dealer.

Pre-amp (rear)

OUTPUTOUTPUT

(Only one channel shown)

Speaker

(Commercially- available Y-adaptor)

Power amp

INPUT	(rear)			INPUT
		EAKERS OUTPUT
.1	Ch.2

HF	HF
LF
	LF

Speaker (rear) Input panel

	(Commercially-available
	Y-adaptor)
Power amp (rear)	Power amp (rear)
(High frequency) INPUT	(Low frequency)	INPUT
SPEAKERS OUTPUT	SPEAKERS OUTPUT
(Only one channel shown)	(Only one channel shown)

HF		HF
LF
		LF

Speaker Speaker (rear) Input panel

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