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Micro-Tech 600/1200/2400 Power Amplifiers

Reference Manual

Maximum Power Specifications

Crown’s maximum power specifications represent the largest amount of output power you can expect from your amplifier when it is driven to

full output under the given conditions. These specifications can be used to prevent loudspeaker and hearing damage.

The maximum power matrices include specifications for single cycle and 40 millisecond burst sine waves. Burst signals act like large

transient peaks that are present in common source signals. Loudspeakers can respond to a single cycle burst, so the single cycle burst

specifications should be used to help you protect your loudspeakers. In contrast, a 40 millisecond burst represents the typical response

time of the human ear. Your ear will not respond to the entire dynamic change of a burst that lasts less than 40 milliseconds.

The burst power specifications are provided at 0.05% THD which is a practical low distortion condition. Operating the amplifier at levels

higher than 0.05% THD can result in output power levels that are higher than those listed in the maximum power matrices.

Maximum Power Notes:

All maximum power specifications are based on 0.5% regulated AC mains with THD of less than 1.0% and an ambient room temperature of 70° F (21° C).

International units with multi-tap transformers are specified for the best-case transformer tap (normally 240 VAC, 60 Hz). Although it is an unusual condition, your

amplifier can function well with AC mains voltages up to 10% over the specified line voltage. With overvoltage conditions, your amplifier may be capable of

delivering instantaneous power levels up to 20% greater than the specifications in the matrix.

1. A single cycle sine wave is presented to the amplifier and monitored for nonlinear distortion. The average power during the burst is reported. Loudspeakers

must be able to withstand this level if they are to be safely used with this amplifier.

2. A 40 millisecond sine wave burst (10 percent duty cycle) is presented to the amplifier and monitored for nonlinear distortion. The average power during the burst

is reported. This power level is a measurement of the amplifier’s maximum transient power that can be perceived by the human ear.

Stereo

(both channels

driven)

Bridge-Mono

(balanced output)

Parallel-Mono

430

340

235

855

685

465

860

690

465

460

375

245

910

750

510

920

750

510

460

350

255

820

700

510

905

765

520

460

430

280

910

860

565

920

865

560

475

575

325

930

1,165

655

940

1,155

650

Stereo

(both channels

driven)

Bridge-Mono

(balanced output)

Parallel-Mono

460

370

250

915

730

500

895

735

505

455

355

245

895

710

485

890

710

485

490

385

260

960

770

525

940

765

530

490

415

270

970

825

545

915

845

540

450

375

260

945

745

520

880

740

525

495

475

310

970

950

620

915

960

610

505

615

350

985

1,240

700

930

1,230

700

Micro-Tech 600 – Maximum Power (Watts)

Stereo/Mono

Mode

40 Millisecond Tone Burst

0.05% Distortion

(See note 2)

Single Cycle Tone Burst

0.05% Distortion

(See note 1)

50 Hz 1 kHz

Load (Ohms)

20 Hz 50 Hz 1 kHz

495

560

320

940

1,130

640

970

1,120

635

515

605

345

990

1,210

680

970

1,225

675

7 kHz

AC Mains120 VAC, 60 Hz UnitsInternational Units

Fig. 6.4 Micro-Tech 600 Maximum Power Matrix

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 37 38

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Crown Micro-Tech 1201 Información técnica Pagina 29

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