TOA a-9060dh Manuale Supplementare

4-CHANNEL DIGITAL

POWER AMPLIFIERS

DA-250F/250FH/550F/500FH

Human Society with
Sound & Communication

Specifications are subject to change without notice.

Printed in Japan (0803) 833-52-362-4A u

TOA Corporation

www.toa.jp

SPECIFICATIONS

Model

DA-250F

DA-250FH

DA-250D

DA-250DH

DA-550F

DA-500F-HL

Power Req.

120V AC, 50/60Hz

Number of Channels

Total Output All Channel Driven

1000W (1kHz, 4

Ω)

1000W (1kHz, 19.6

Ω)

500W (1kHz, 4

Ω)

500W (1kHz, 19.6

Ω)

2200W (1kHz 4

Ω)

400W (1kHz, 4

Ω)

680W (1kHz, 8

Ω)

340W (1kHz, 8

Ω)

1400W (1kHz, 8

Ω)

2200W (1kHz, 8

Ω)

2000W (1kHz, 9.8

Ω)

Output Voltage per Channel

31.6V (1kHz, 4

Ω)

70V (1kHz, 19.6

Ω)

31.6V (1kHz, 4

Ω)

70V (1kHz, 19.6

Ω)

46.9V (1kHz, 4

Ω)

20V (1kHz, 4

Ω)

36.9V (1kHz, 8

Ω)

36.9V (1kHz, 8

Ω)

52.9V (1kHz, 8

Ω)

66.3V (1kHz, 8

Ω)

70V (1kHz, 9.8

Ω)

Output Current per Channel

7.9A (1kHz, 4

Ω)

3.6A (1kHz, 19.6

Ω)

7.9A (1kHz, 4

Ω)

3.6A (1kHz, 19.6

Ω)

11.7A (1kHz, 4

Ω)

5A (1kHz, 4

Ω)

4.6A (1kHz, 8

Ω)

4.6A (1kHz, 8

Ω)

6.6A (1kHz, 8

Ω)

8.3A (1kHz, 8

Ω)

7.1A (1kHz, 9.8

Ω)

Power Output

8 ohms per channel

170W

—

170W

—

350W

550W

4 ohms per channel

250W

—

250W

—

550W

100W*

16 ohms bridged

340W

—

340W

—

700W

1100W

8 ohms bridged

500W

—

500W

—

1100W

—

Hi-Z: 70V per channel

—

250W

—

250W

—

500W

Hi-Z: 140V bridged, per channel

—

500W

—

500W

—

1000W

Power Consumption*

Idle power consumption

56W, 1.0A

58W, 1.0A

28W, 0.5A

35W, 0.7A

63W, 1.2A

69W, 1.3A

Rated power consumption

1kHz

8 ohms

850W, 11.7A

—

420W, 5.9A

—

1650W, 22.4A

2600W, 33.2A

4 ohms

1300W, 16.9A

—

650W, 8.7A

—

2800W, 35.5A

580W, 9.1A

70 Volts —

1200W, 15.9A

—

580W, 7.8A

—

2350W, 30.4A

1/8 Power Pink noise*

8 ohms

183W, 3.0A

—

102W, 1.7A

—

317W, 5.2A

504W, 7.4A

4 ohms

257W, 4.2A

—

132W, 2.3A

—

658W, 9.7A

171W, 2.9A

70 Volts —

265W, 4.1A

—

147W, 2.3A

—

437W, 6.7A

1/3 Power Pink noise*

8 ohms

362W, 5.4A

—

197W, 3.1A

—

667W, 9.5A

1080W, 15.2A

4 ohms 597W, 8.6A

—

308W, 4.4A

—

1060W, 14.0A

313W, 4.9A

70 Volts —

609W, 8.5A

—

311W, 4.5A

—

1036W, 13.9A

1/8 Power 1kHz

8 ohms

152W, 2.5A

—

84W, 1.4A

—

277W, 4.5A

410W, 6.3A

4 ohms

219W, 3.5A

—

112W, 1.8A

—

510W, 7.6A

151W, 2.7A

70 Volts —

224W, 3.6A

—

123W, 2.0A

—

374W, 5.9A

1/3 Power 1kHz

8 ohms

314W, 4.7A

—

160W, 2.5A

—

519W, 8.6A

991W, 13.5A

4 ohms 507W, 7.3A

—

222W, 3.4A

—

958W, 13.0A

260W, 4.3A

70 Volts —

499W, 7.2A

—

256W, 3.8A

—

883W, 12.2A

Frequency Response

20Hz – 20kHz (

±1dB)

HPF ON: 50Hz – 20kHz

20Hz – 20kHz (

±1dB)

HPF ON: 50Hz – 20kHz

20Hz – 20kHz (–2dB, +1dB)

HPF ON: 50Hz – 20kHz

(–3dB, 0dB)

(–3dB, +1dB)

HPF OFF: 20Hz – 20kHz

(

±1dB)

(

±1dB)

(–2dB,

+1dB)

THD

0.1 % (1kHz)

HPF ON: 0.1 % (1kHz),

0.1 % (1kHz)

HPF ON: 0.1 % (1kHz),

0.1 % (1kHz)

0.3 % (20Hz – 20kHz)

0.3 % (100Hz – 20kHz)

0.3 % (20Hz – 20kHz)

0.3 % (100Hz – 20kHz)

0.15 % (20Hz – 20kHz)

HPF ON: 0.3 % (100Hz – 20kHz)

HPF OFF: 0.1 % (1kHz),

HPF OFF: 0.3 %

0.3 % (20Hz – 20kHz)

(20Hz – 20kHz)

S/N Ratio (A weighted)

100dB

Crosstalk at 10kHz (A weighted)

70dB

DC Offset*

±5mV

Voltage Gain*

29.5dB

35.1dB

29.5dB

35.1dB

32.6dB

35.1dB

Damping Factor*

100

220

100

220

115

Inputs

Input impedance

10k

Ω (unbalanced), 20kΩ (balanced)

10k

Ω (unbalanced), 20kΩ (balanced)

Input sensitivity

+4dB (1.23V)

Input clipping

14V (25.1dBu)

12V (23.8dBu)

Protection Circuit

Amplifier section

DC output, overheat protection, load shorting, overload current, maximum output

Power supply section

Overheat protection, AC rush current

Cooling

Continuously constant speed fan with front-to-rear airflow,

50,000 hours life time at 25

°C

100,000 hours life time at 25

°C

Operating Temperature

–10

°C to +40°C (14°F to 104°F)

Operating Humidity

Under 90% RH (no condensation)

Dimensions

482 (W)

× 44 (H) × 401 (D)mm

482 (W)

× 88.4 (H) × 404.2 (D)mm

(18.98"

× 1.73" × 15.79")

(18.98"

× 3.48" × 15.91")

Weight

6.6kg (14.6 lb)

5kg (11.02 lb)

8.8kg (19.4 lb)

Finish

Panel: Aluminum, alumite process, black/Case: Plated steel sheet

Accessory

Euro style terminal block connector (3-pin)

× 4,

Euro style terminal block connector (3-pin)

× 2,

Euro style terminal block connector (3-pin)

× 4,

Tamper-proof cap

× 4

Tamper-proof cap

× 2

Tamper-proof cap

× 4

Option

—

Matching transformer: MT-251H —

Matching transformer: MT-251H

0dB=0.775Vrms
*Typical data
*

For a 4

Ω speaker, max. output is limited to 100W.

1/8 power with pink noise represents typical program with occasional clipping.

1/3 power with pink noise represents severe program with heavy clipping.