Yorkville Sound LS700P owner manual Introduction, Configuration, Hi Frequency Cutoff Control

ES700P

POWER	SUBWOOFER	FULL–RANGE
AMPLIFIER		SPEAKERS

Left

Left

Right

Right

ONE SUBWOOFER PER SYSTEM

ON POWER	T 3,15A GDC
	T 5.0A 250V
	SLO~BLO

230V			120V	CAUTION: REPLACE WITH
				SAME TYPE FUSE AND RATING
50Hz			60Hz
1.3A	Yorkville	LR 21877	2.5A	ATTENTION: UTILISER UN FUSIBLE DE
				RECHANGE DE MEME TYPE ET CALIBRE

CAUTION AVIS

	L	R
FULL–RANGE			FULL–RANGE
SPEAKER			SPEAKER
ES700P		POWER	ES700P
	AMPLIFIER
SUBWOOFER			SUBWOOFER

TWO SUBWOOFERS PER SYSTEM

Yorkville

LS700P

DESIGNED & MANUFACTURED BY YORKVILLE SOUND • TORONTO, CANADA

USER NOTE:

This Subwoofer may be driven from Speaker Level
or Line Level signals. If an élite processor is used,
this Subwoofer should be plugged into the SUB
output of the processor. The High–Frequency
Cutoff should be set to 150-Hzand the Input Level
should be set to LINE. For Line
Level operation a balanced (Tip
Ring Sleeve) cable should be
used. If the system is being	INPUT GROUND
operated without a processor,	UNGROUNDED
this Subwoofer can be	GROUNDED
connected to the output of the	INPUT LEVEL
power amplifier as shown in the
diagrams and the Input Level	SPEAKER
should be set to SPEAKER. If	LINE
none of the equipment has a U-
ground, the INPUT GROUND
should be set to GROUNDED.
Otherwise the INPUT GROUND		I
should be set to the position that	LEFT
best minimizes the hum.		N
	(mono)	P

Refer to the Owner's	U
	T
Manual for other modes
of operation

PARALLEL

THRU

I

RIGHT N

P

U

T

PARALLEL

THRU

POWER
HIGH		125 Hz
FREQUENCY
CUT OFF
100 Hz			150 Hz
SUBWOOFER
LEVEL	+3	+10	+20
0
			+30
	-3	dB

Introduction

The LS700P is a premium quality integrated powered subwoofer and amplifier. Created as an easy-to-setup addition to your PA, the LS700P will extend the bass of a typical sound system with a minimum of complication, and hence is intended primarily to operate with speaker level signals.

Configuration

The LS700P may be used in several different configurations, the minimum standard system is one LS700P used with a pair of full range speakers. The LS700P accepts the signal from separate Left and Right sources simultaneously. It then combines them into one signal (to drive the internal speakers). When used in a setup where only one signal is provided to a speaker, such as a mono system or stereo with more than one LS700P, use either the Left or Right input.

For normal operation connect the LS700P just like an ordinary speaker along with the full range speakers. The "INPUT LEVEL" switch should be set to "SPEAKER." If the audio source does not have a "U" ground, eg. a ground pin on the AC cord, the "INPUT GROUND" switch must be set to "GROUNDED." The LS700P may be wired before or after the full range speakers. Use the left and right inputs when using a single LS700P in a stereo system. Use either the left or right inputs when using separate LS700P's for each side or when used in a mono system. The LS700P does not alter the signal to the full range speakers in any way. The LS700P will not draw any power from the amplifier driving the full range speakers. Please note that an external cross-over is not necessary.

1. Hi Frequency Cutoff Control

This control varies the frequency at which the LS700P rolls off the high frequencies. This provides part of a crossover function. This crossover function also combines with the natural low frequency roll off inherent of the full range cabinet (when the LS700P is not used with an élite processor). This control should be set to the closest possible frequency to 20 Hz below the crossover point that the full range speakers processor uses as it's crossover point.

If an élite processor is used, set the high frequency cutoff to maximum (160 Hz)

2. Subwoofer Level Control

The subwoofer level control adjusts the amount of bass added to the sound system by the LS700P. This adjusts for the relative sensitivity of the companion full range speakers and the desired system frequency response. This control should be set by listening while operating at a medium level and then not changed. It is not possible to set this control properly at high levels since the limiter is determining the output level. Setting the level too high will over load the circuitry causing a loss of bass dynamics. The level control should not be set above

1