پاور آمپلی فایر های دیجیتال 2 , 4 کانال محصول کمپانی TOA ( تو آ ) سری DA

TOA DA Series
2 & 4 Channel Digital Amplifier

Features :
-------------
• Sleek, 1RU unit fits into any standard audio rack ( DA-250D,DA-250DH,DA-250F,DA-250FH )
• Sleek, 2RU unit fits into any standard audio rack ( DA-500FH,DA-500F-HL,DA-550F )
• Lightweight single rack space unit
• 2 or 4 channels of I/O, perfect for multiple zones
• Built-in limiter and high pass filter
• Efficient Class D circuitry
• Low heat dissipation and power consumption
• Protection circuitry prevents damage from overheating and overloads
• Front panel LEDs for power, input, output, peak, and protect
• Includes volume control caps to prevent unwanted level changes

TOA DA-250D/DA-250DH Specifications :
----------------------------------------------------
Input & Output Channel : 2
Amplifier Power :
    250 W at 70V per channel (DA-250DH)
    500 W at 140V bridged (DA-250DH)
    250 W at 4 ohm per channel (DA-250D)
    170 W at 8 ohm per channel (DA-250D)
    500 W at 8 ohm bridged (DA-250D)
    340 W at 16 ohm bridged (DA-250D)
Frequency Response : 20Hz - 20kHz (±1dB)
Total Harmonic Distortion (THD) : 0.15% (1kHz) , 0.3% (20Hz - 20kHz)
Input Sensitivity : +4dB (1.23V) or -10dB (0.24V) (DA-250D)
Input Impedance ( DA-250D ) : 10 kOhms, Electronically Balanced
Input Impedance ( DA-250DH ) : 10kohms (unbalanced), 20kohms (balanced)
Signal to Noise Ratio : 100dB
Connectors :
    1 x AC Power Input
    2 x 3-Pin Removable Terminal Block Input Connectors
    1 x Screw Terminal Strip Output (2 Channels)
Dimensions (WxHxD) : 19" x 1.7" x 15.7" (482 x 44 x 401mm)
Weight : 11.02 lbs (5kg)

TOA DA-250F/DA-250FH Specifications :
--------------------------------------------------
Input & Output Channel : 4
Amplifier Power :
    250 W at 70V per channel (DA-250FH)
    500 W at 140V bridged (DA-250FH)
    250 W at 4 ohm per channel (DA-250F)
    170 W at 8 ohm per channel (DA-250F)
    500 W at 8 ohm bridged (DA-250F)
Frequency Response : 20Hz - 20kHz (±1dB)
Total Harmonic Distortion (THD) : 0.15% (1kHz) , 0.3% (20Hz - 20kHz)
Input Sensitivity : +4dB (1.23V) or -10dB (0.24V) (DA-250D)
Input Impedance ( DA-250D ) : 10 kOhms, Electronically Balanced
Input Impedance ( DA-250DH ) : 10kohms (unbalanced), 20kohms (balanced)
Signal to Noise Ratio : 100dB
Connectors :
    1 x AC Power Input
    4 x 3-Pin Removable Terminal Block Input Connectors
    1 x Screw Terminal Strip Output (2 Channels)
Dimensions (WxHxD) : 19" x 1.7" x 15.7" (483 x 44 x 400mm)
Weight : 14.5 lbs (6.6kg)

TOA DA-500FH/DA-500F-HL Specifications :
------------------------------------------------------
Input & Output Channel : 4
Amplifier Power :
    500 W at 70V per channel (DA-500FH,DA-500F-HL)
    100 W at 4 ohm per channel (DA-500F-HL)
    550 W at 8 ohm per channel (DA-500F-HL)
    1000 W at 140V ohm per channel (DA-500FH,DA-500F-HL)
    1100 W at 16 ohm bridged (DA-250F-HL)
Frequency Response (DA-500FH) : 50 Hz - 20 kHz (-3 dB )
Frequency Response (DA-500F-HL) : 20 - 20,000 Hz (+1 dB): HPF OFF, 50 - 20,000 Hz (-3 dB, +1 dB): HPF ON
Total Harmonic Distortion (THD) : 0.15% (1kHz) , 0.3% (20Hz - 20kHz)
Input Sensitivity : +4dB (1.23V) or -10dB (0.24V)
Input Impedance : 10 kOhms, Electronically Balanced
Signal to Noise Ratio : 100dB
Crosstalk : 70 dB (A-weighted)
Connectors :
    1 x AC Power Input
    4 x 3-Pin Removable Terminal Block Input Connectors
    1 x Screw Terminal Strip Output (2 Channels)
Dimensions (WxHxD) : 19" x 3.48" x 15.91" (483 x 88 x 404mm)
Weight : 19.4 lbs (8.8kg)

TOA DA-550F Specifications :
-------------------------------------
Input & Output Channel : 4
Amplifier Power :
    550 W at 4 ohm per channel
    350 W at 8 ohm per channel
    1100 W at 8 ohm bridged
Frequency Response : 20 - 20,000 Hz (-2 dB, +1 dB)
Total Harmonic Distortion (THD) : 0.15% (20Hz - 20kHz)
Input Sensitivity : +4dB (1.23V) or -10dB (0.24V)
Input Impedance : 10 kOhms, Electronically Balanced
Signal to Noise Ratio : 100dB
Crosstalk : 70 dB (A-weighted)
Connectors :
    1 x AC Power Input
    4 x 3-Pin Removable Terminal Block Input Connectors
    1 x Screw Terminal Strip Output (2 Channels)
Dimensions (WxHxD) : 19" x 3.48" x 15.91" (483 x 88 x 404mm)
Weight : 19.4 lbs (8.8kg)