Alto DPA 1500, Service Manual

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2. Specification
Output Power DPA 900 DPA 1500
20Hz-20KHz @0.1% THD, SCD MODE
8Ohms per channel(EIAJ)
190W 300W
4Ohms per channel (EIAJ) 300W 500W
Bridge MONO mode
8Ohms ,1KHz, 0.1% THD
600W 1000W
Distortion (SMPTE-IM) <0.05%
Frequency response 20Hz-20KHz=/-0.1dB, -3dB points:10Hz-60Hz
Damping factor ,1 kHz and below >300 at 8 Ohms
Signal to noise ,20Hz`20KHz 102dB
Voltage Gain 40 Χ (32dB)
Input sensitivity @4Ohms 1Vrms
Input clipping 22dB)
Input impedance 10kOhms unbalanced, 20k Ohms balanced 56(36dB)
Controls
Front :AC switch ,CH1&CH2 Gain knobs
Rear :Limiter bridge selector
Indicators (1per channel)
Power-on : Blue LED
Operation/Protection: Dual Color(green/red LED)
Limit: Red LED
Clip: Red LED
Connectors, each channel
Input: Active balanced XLR
Parallel output: XLR
Output: NEUTRIK speaker and binding posts
Cooling Continuously variable-speed fan, rear-to front air flow
Load protection
On/off muting, DC-fault load grounding relay, internal
fault fuses.
Power requirements 200-240(100-120)VAC 50-60Hz
Dimensions
19”(48.3cm) rack mounting, 3.5”(8.9cm) tall (2rackspaces)
15.9”(40cm)deep (rack mounting to rear support ears
)
weight 12.9kg (Net) 14.8kg (Net)