Carvin LS1502A manual Aps, LS1801 subwoofer

APS Powered Speakers

APS

ACTIVE POWERED SYSTEMS

Carvin’s APS (Active Powered Systems) amplification packs take the guesswork out of selecting the ideal power source to drive your loudspeakers. With bi-amped and tri-amped models designed to handle the most demanding applications, the APS am- plifiers are perfectly mated with—the LS1502A, LS1503A, and LS1523A—creating op- timally designed powered loudspeaker systems that are ready for anything you throw at them. There’s even one APS power pack created specifically to generate the bone crushing impact of our LS1801A subwoofer. APS-based LS loudspeaker systems make setup and operation easier as well, with less gear to haul. Feed your mixer’s output directly to these loudspeaker systems, and you’re ready to rock!

APS POWER AMP SPECS:

2-way Bi-Amped – LS1502A

350w RMS (Hi Freq: 50w @ 16 ohms, Lo Freq. 300w @ 8 ohms)

3-way Tri-Amped – LS1503A

425w RMS (Hi Freq: 50w @ 16ohms, Mid Freq: 75w @ 16 ohms, Lo Freq. 300w @ 8 ohms)

3-way Tri-Amped – LS1523A

900w RMS (Hi Freq: 80w @ 16 ohms, Mid Freq: 120w @ 8 ohms, Lo Freq. 700w @ 4 ohms)

sub woofer – LS1801A 700w RMS @ 4 ohms

ALL MODELS: FREQ. RESPONSE: 20 to 20kHz, THD less than .05% @ 90%, .1% at full power,

SLEW RATE: 50V/µs, ACTIVE EQ: ± 6 dB @ 100 Hz, 100 Hz to 5 kHz mid sweep, 10kHz, EQ bypass

switch, (SUB WOOFER: 24dB/Octave @ 80 & 120 Hz) • Relay muting and Speaker Guard™ pro- tection, Peak and protection & power on indicators, On-Off power switch, Power Req. 120VAC 60 Hz . 240 AC/50Hz model available

All loudspeaker components are Time-Aligned

for greater intelligibility and clarity

*

*

*TIME IN DISTANCE + CROSSOVER PHASE SHIFT

dB Low Frequency High Frequency

APS HOOK-UP

1.Input/THRU OUTPUT Use the balanced XLR or 1/4” connectors featured on the rear control panel. Using a balanced source will reduce noise which may be picked up by the cable. You may DAISY-CHAIN as many APS systems as you wish. All connectors are wired in parallel.

2.APS EQUALIZATION The APS powered loudspeakers offer a by pass- able 3-band mid sweep equalizer for custom tuning to the acoustical environment. The EQ system is engineered specifically for the APS, featuring a boost and cut range of ±6dB to prevent radical adjustments that could otherwise compromise the sound of the system. The Mid-band sweep is particularly useful for enhancing critical mid range frequencies for stage monitoring or for cutting certain frequencies to compen- sate for room resonances. Press the “EQ IN” switch to activate the equalizer. The BLUE LED displays when the EQ is active.

3.Level control The LEVEL control adjusts the output volume of the APS. Start by setting the LEVEL at “0”. Weak input signals can be boosted by set- ting the LEVEL at “+6”. Strong signals can be reduced by turning the LEVEL toward “-12”. The RED LED will flash if the internal power amps start to clip. Turn the LEVEL control down to avoid clipping. Damage to the drivers can result from operat- ing at a level where the RED CLIP LED is constantly illuminated.

4.Power/protect/CLIP INDICATOR Power up your audio source first, then turn on the APS with the power switch. When the system is active, the LED will indicate GREEN. When shutting down turn off the APS first, then turn off the mixer. If any of the power amps are clipping, the LED will indicate RED and you should reduce the output level. If the system should go into protect mode, the LED will indicate YELLOW and the power amps will shut off. This may occur if; a) the system is overheated due to clipping the power amps for an extended period of time, b) one of the internal drivers developed a short or c) the power amps require service.

5.Power Push this switch to the UP position to apply power to the unit. The POWER LED will light to show the system is on.

6.AC Power Use a standard grounded AC cord. Whenever possible, use dedicated circuits for powered speakers. The powered speakers are available in either 120V or 240V models.

7.crossover Frequency switch The CROSSOVER FREQUENCY switch selects the crossover point for the APS. The 120Hz out setting is generally used with small to mid sized speakers in your setup. Almost all 12” and 15” woofers will benefit from the 120Hz setting. The 80Hz (switch in) setting is generally used with larger 18” woofers.

APS bi-amp/tri-amp rear PANEL:

		2	3
LOW			MID	MID SWEEP		HIGH
	0		0	1kHz			0
-3	+3	-3	+3			-3	+3
-6	+6	EQ IN -6	+6	100Hz	5kHz	-6	+6
			0	LEVEL		MADE IN THE
TIME-ALIGNED BI-AMP SYSTEM					!	USA
						CAUTION
300 W RMS			-12 +6			RISK OF ELECTRIC SHOCK
						DO NOT OPEN
					CAUTION ± TO PREVENT ELECTRICAL SHOCK DO NOT DEFEAT THE
					SAFETY GROUND ON THE POWER CORD. DO NOT REMOVE COVER.
					NO USER SERVICEABLE PARTS INSIDE. WARNING ± TO PREVENT FIRE
			RED		OR SHOCK HAZARD DO NOT EXPOSE TO RAIN OR MOISTURE. REFER
					SERVICING TO QUALIFIED PERSONNEL.
			CLIP			Serial No.
			YELLOW	GREEN
			PROTECT	POWER		120VAC	60Hz	300VA
THRU OUTPUT		INPUT
	1		4	5			6

LS1801 subwoofer

8.crossover bypass switch The crossover bypass switch bypasses the internal active crossover allowing the use of an outboard active crossover.

8 3 7

ATTENUATION		Low		High
		Pass		Pass
		Filter		Filter
		300 Watts		50 Watts
		LS1502A
	20Hz		1 kHz	20	kHz
dB		Figure 2
		Low Frequency	Mid Frequency	High Frequency
ATTENUATION		Low	Band	High
		Pass	Pass	Pass
		Filter	Filter	Filter
		LS1503A 300 Watts	75 Watts	50 Watts
		LS1523A 700 Watts	120 Watts	80 Watts
					kHz
20Hz			1 kHz	20

Bi amped or Tri amped – active crossovers and power amps

CROSSOVER		LS1801A
BYPASS
ACTIVE SUBWOOFER SYSTEM		0	LEVEL
700W RMS
HI PASS		-12 +6
OUTPUT
		RED
		CLIP
		YELLOW	GREEN
		PROTECT	POWER
THRU OUTPUT	INPUT
1		4	5

CROSSOVER FREQUENCY

120Hz

80Hz

MADE IN THE

USA

! CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION ± TO PREVENT ELECTRICAL SHOCK DO NOT DEFEAT THE

SAFETY GROUND ON THE POWER CORD. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. WARNING ± TO PREVENT FIRE

OR SHOCK HAZARD DO NOT EXPOSE TO RAIN OR MOISTURE. REFER SERVICING TO QUALIFIED PERSONNEL.

Serial No.

120VAC 60Hz 700VA

6