Carver PM-1400 Owners manual

p m 1 4 0 0

Professional Stereo Power Amplifier

Safety Information

The lightning flash with arrowhead symbol within an equilateral triangle

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK

DO NOT REMOVE COVER (OR BACK)

NO USER-SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

Table Of Contents

Introduction...........................................................1

Unpacking and Paperwork....................................1

Features and Specifications ..................................2

Controls and Functions.........................................4

Installation

Location and General Precautions....................6

Mechanical Considerations...............................6

Rear Support for Road Applications.................6

Thermal Considerations....................................6

AC Power Considerations.................................6

Magnetic Leakage

Considerations...................................................7

Input Wiring......................................................7

Input Sensitivity................................................7

Output Wiring...................................................8

Installation (continued)

Polarity..............................................................8

Dual Mono........................................................8

Bridged Mono...................................................8

Parallel Mono....................................................8

70V Distribution Systems.................................9

Clipping Eliminator ..........................................9

Level Defeat......................................................9

Power ON Sequencing......................................9

Remote Turn-On of

One or More Amplifiers .................................10

Operating Tips

Using the pm1400...........................................11

Accessory Options ..........................................11

Servicing Instructions.........................................12

In Case of Difficulty...........................................13

Care and Service Assistance...............................14

Warranty Information..........................................15

Introduction

Congratulations on your purchase of a new Carver Professional Power A m p l i f i e r. It is backed by state-of-the-art engineering and manufacturing techniques to bring you the best in quality craftsmanship and reliable performance. The pm1400 is specially designed for pro sound applications. It’s rugged construction and low profile make it ideal for sustaining the abuses of the road with reliability and space-saving economy. The pm1400 is rated at 700 watts per channel into 4 ohms and 475 watts per channel into 8 ohms. In bridged mono operation it is rated at 1400 watts into 8 ohms. The sophisticated protection circuits designed into this amplifier will protect your system should an unexpected fault occur. They also protect the amplifier from excessive temperature, continuous current limiting and shorted outputs. The balanced input uses a high quality, high common-mode rejection diff e r e n t i a l amplifier for exceptional hum and noise rejection. The sequencing feature allows a rack of amplifiers to be powered up from a remote location. The daisy-chain connection scheme causes each amplifier to turn on in sequence, preventing the large in-rush current that can occur when an entire rack of amplifiers is turned on s i m u l t a n e o u s l y. This power amplifier was designed and manufactured by people with a lifetime commitment to providing the world’s finest components for music and sound reproduction. Thanks for placing your confidence in Carver Professional. We know your amplifier will provide many years of dependable service and reliable sound reproduction.

U n packing and Pa p e r w o r k

Carefully unpack the amplifier and keep the original carton and packing materials for future moving, shipment or long-term storage. After opening the box, please check for any visible signs of damage that were not apparent from the outside of the box. If you do encounter what appears to be concealed damage, please consult your Carver Professional Dealer before installing the unit.

Important Paperwork

Make sure to save your sales receipt. Your receipt is extremely important to establish the duration of your Limited Warranty, and for insurance purposes. Next, make a note of the serial number which is located on the back of the amplifier. Record it in the space provided below for convenient reference.

Serial Number:___________________ Purchased at:_____________________ Date:___________________________

F i n a l l y, take a moment to fill out and return the Warranty Registration Card packed with the amplifier and return it to Carver Professional. This will allow us to keep you informed about new products as they become available.

pm1400

● 475W per channel into 8 ohms

700W per channel into 4 ohms 1400W into 8 ohms, bridged mono

● XLR and 1/4” TRS input connectors

● Accepts balanced or unbalanced lines

● Multi-way binding post output connectors

● Independent CH 1 and CH 2 Level Controls with

11 detented positions

● External Level Control Defeat Switch

● Dual Mono mode for operating both channels with

a single mono input

● Bridged Mono mode for combining the power of

both channels into a single higher powered channel

● Input sensitivity set at 1.5Vrms from factory.

Internally configurable to 0.775Vrms.

● Internally configurable input polarity

● Internal connection points for add-on accessories

● Power ON Sequencer

● High Efficiency Class H Amplifier

● Power on muting

● Independent CH 1/CH 2 Speaker relays will

instantaneously disconnect if one of the following fault conditions are detected:

D.C. Offset Over Temperature Short Circuit

● Additional protection circuitry includes:

Clipping Eliminator AC Line Fuse

● Power Connected/Standby indicator

● 7 LED display per channel, including Power

Ready and Clip/Protect indicators

● 2-speed Fan cooled

● 70-volt stereo direct drive operation

● C/UL, CE 1997, CSA approved

Continuous Average Output Power, both

BACK

channels driven:

475 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than

0.1% THD; 700 watts per channel into 4 ohms at 1kHz, with no more than

0.1% THD

Bridged-mono operation:

1400 watts into 8 ohms at 1kHz, with no more than 0.1% THD

Dual-mono operation:

950 watts into 8 ohms, 1400 watts into 4 ohms from 20Hz to 20kHz, with no more than 0.1% THD

Dynamic Headroom: >2.0dB F requency Response:

20Hz to 20kHz (±0.75dB)

Channel Separation:

>65dB @ 1kHz

Damping Factor: >400 Input Impedance: 25 kilohms unbalanced

50 kilohms balanced

Sensitivity: Low: 1.5VRMS for rated

power into 4 ohms 116mVRMS for 1W into 4 ohms High: 0.775VRMS for rated power into 4 ohms 53mVR M S for 1W into 4 o h m s

Input Overload: +18dB IM Distortion: <0.1% Gain: High: 36.7dB (±0.5dB)

Low: 30.7dB (±0.5dB)

Signal-to-Noise Ratio:

>100dB, A-weighted, ref. to rated power into 4 ohms

Slew Rate: 40V / µS (Bandwidth

limited)

CMRR: >80dB @ 1kHz Power Consumption:

40W at idle 800W with musical program 1500W at full power into 8 ohms (continuous) 2400W at full power into 4 ohms (continuous)

Power Requirements:

120V AC / 60Hz (USA and Canada) Other voltages as required for export

Fusing: 15 amp slo-blo

(120V / 60Hz) 8 amp slo-blo (230V / 50Hz)

Sequence Receive Terminal:

+7V to +15V DC 50mA min. current requirement

Display: 7 LED indicators per

channel 1 green READY, 5 yellow SIGNAL, 1 red CLIP / PROTECT

Size (H x W x D): 3.50” (2U) x 19” x 13.25”

89mm x 483mm x 337mm

Net Weight: 34.2lbs. (15.5kgs) Shipping Weight: 39lbs. (17.73kgs)

Due to ongoing research and development, all specifications and features effective 7/98 are subject to change without notice.

Serial Number

PUSH

INPUT IMPEDANCE 25K OHMS EACH LEG TO GROUND (TOTAL 50K OHMS BALANCED)

SEQUENCE

SND RCV

CAUTION ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CLIPPING ELIMINATOR

OFF

ON OFF

LEVEL DEFEAT

3 4

∞

Controls And Functions

1. POWER SWITCH

When this switch is engaged, the power turns ON and the READY indicators illuminate. Be sure all connections are made and double-checked before switching the power amplifier on.

2. STANDBY LED

This indicator illuminates when the power switch is turned OFF. It also lets you know when the amplifier is connected to AC power. When the power switch is OFF and the amplifier is plugged into an AC outlet, the LED illuminates to indicate that AC power is available and the amplifier can be powered up. When the power switch is ON, the LED turns off.

3. AC POWER FUSE

This protects the amplifier from catastrophic failures that could damage internal circuitry. Repeated fuse blowing is a sign of internal distress. See page 14 for information on authorized Carver Professional Service.

Caution: Always replace with the same type and value fuse indicated next to the fuseholder.

4. CH1 / CH2 LEVEL CONTROLS

These controls are used to adjust the input level of each channel. When the controls are fully clockwise the amplifier operates at maximum gain. Turning the controls counter-clockwise attenuates the input signal. The Level controls can be bypassed. See back panel for Level Defeat Switch. Note: A precision attenuator is available as an option for the pm1400, which can be installed inside the amplifier (see page 11). Contact your Carver Professional Dealer for details.

5. CH1 / CH2 STATUS INDICATORS

These LEDs display information about the operation of the amplifier. READY – These LEDs illuminate green when the power is on and the amplifier is ready to operate. The READY LEDs illuminate red when the power switch is first turned on (while the power supply is stabilizing prior to the speaker output relays switching in), or when the amplifier is in protect mode. SIGNAL – These LEDs illuminate yellow when a signal is present at the Speaker Output jacks to provide an indication of output power relative to full power (0dB). CLIP/PROTECT – These LEDs illuminate red when the power switch is first turned on, when the output begins to clip, or whenever there is a fault condition detected that causes the output relay(s) to disengage. These fault conditions include excessive DC Offset, excessive heatsink temperature and short circuits at the speaker output(s). Note: The relays operate independently for each channel. Therefore, it is possible for one channel to operate normally while the other is in “protect” mode.

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