Carvin 1542 manual Bi-Amp, SW1801 Subwoofer, Tri-Amp, APS BI-AMP/TRI-AMP Rear Panel, Delay 360∝s

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POWERED MODELS

APS

ACTIVE POWERED SYSTEMS

APS BI-AMPED/TRI-AMPED LOUDSPEAKERS Carvin’s APS™ Active Powered Speakers are more than just another “power amp in a cabinet”. With two separate power amps in the 2-way systems and three separate power amps in the 3-way systems, a more efficient design adds clarity as each amp only needs to reproduce frequencies for it’s respective driver. Compared to other pow- ered speakers the APS system will deliver more clarity with greater power.

APS POWER AMPS APS loudspeakers utilize Carvin’s DCM power amp tech- nology to supply continuously rated RMS power.

APS TIME ALIGNMENT CIRCUITRY Due to the physical size and place- ment of various drivers in a speaker enclosure, the sound of each driver reaches your ears at different times. This difference is enough to cause a slight phase change. To alleviate this problem, the APS utilizes time delay circuits to time-align the drivers with one another.

DISTANCE

DELAY 360s

APS ACTIVE ELECTRONIC CROSSOVERS An electronic crossover splits the incoming signal into specific frequency ranges before going to the separate amps for each driver. For superior frequency control and maximum phase accuracy, the APS utilizes the design of our XC3000 crossover featuring sharp 4th order 24dB/octave Linkwitz-Riley filters. Perfect crossover points are achieved with appro- priate frequencies going to each driver. A subsonic filter improves woofer efficiency by removing extremely low frequencies under 20 Hz that waist power.

dB

Low Frequency

 

High Frequency

 

ATTENUATION

Low

 

High

 

Pass

 

Pass

BI-AMP

Filter

 

Filter

 

 

 

300 Watts

 

50 Watts

 

 

742A, 832A

 

 

 

 

20Hz

1 kHz

 

20 kHz

dB

Low Frequency

Mid Frequency

High Frequency

 

 

Low

Band

High

 

 

Pass

Pass

Pass

 

 

Filter

Filter

Filter

 

APS HOOK-UP

1.INPUT/THRU OUTPUT Use the balanced XLR or 1/4” connectors fea- tured 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 operating 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 indi- cate 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:

23

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

 

 

 

 

 

 

USA

 

TIME-ALIGNED BI-AMP SYSTEM

 

 

 

 

!

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

 

SW1801 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

 

 

 

 

TRI-AMP

 

 

 

 

 

1584A 300 Watts

75 Watts

50 Watts

 

 

1588A 700 Watts

120 Watts

80 Watts

 

 

 

 

 

 

 

20Hz

1 kHz

20 kHz

CROSSOVER

 

SW1801A

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

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Contents Service Limited Warranty Receiving Inspection APS Power AMP Specs WAY Systems SpecsPM15/PM15A Specs Subwoofer Systems SpecsFrom power amp output Typical Loudspeaker Impedance ConfigurationsSpeakon & 1/4 inputs Delay 360∝s BI-AMPSW1801 Subwoofer TRI-AMP