Alto D4
This is another trusted product from InstrumentPro. They have a great selection of band gear, including the Alto D4 presented on this page.
Alto D4 The ALTO D4 series includes D1, D2, D3, D4. It is a line of high power, low profile, professional Power Amplifiers with advanced features and great reliability. They deliver tremendous power in only two rack spaces, providing high level performance under the most demanding conditions. An automatic speed fan matches cooling capacity with heat requirements. The amplifier frame contains all solid-state circuitry, using complementary silicon output devices. The amplifier is supplied with a single moulded AC cord having an appropriate AC plug for the intended operating voltage. The amplifier employs forced air cooling with a variable speed fan for minimum acoustic noise. Air flow is from rear to front to avoid temperature rise inside the Rack. D1, D3 contain two independent channels and D2, D4 contain four independent channels, with separate AC transformer secondaries, power supplies and protection system. All protection systems, except the main AC one, are self resetting upon removal of fault, and the remaining channel shall continue to operate. Features: Distortion (SMPTE-IM): <0.5%(THD, DIM, SMPTE) Frequency Response: 20Hz-20KHz +/- 0.1dB, -3 dB points: 10Hz-60KHz Damping Factor, at 8 ohms: >300 100Hz: > 500 1KHz: > 200 10KHz: >100 Signal to Noise, 20Hz-20KHz: >105 dB/A VOLTAGE GAIN: 40x (32dB) Input Sensitivity @ 4 ohms: 1Vrms Input Clipping: 10Vrms (+22 dB) Input Impedance: 10K ohms unbalanced, 20K ohms balanced; 56 (36dB) CONTROL: FRONT: AC SWITCH, GAIN KNOBS REAR: LOW PASS FILTER, BRIDGE SELECTOR. Cooling: Continuously 7-variable-speed fan, rear-to-front air flow Load Protection: On/off muting, DC-fault load grounding relay. Internal fault fuses. Power EIAJ @ 1% THD. Both channels driven: 4 750W @ 4 ohm (EIAJ); 4 370W @ 8 ohm (EIAJ) BRIDGE MODE: 2 1500W @ 8 ohm (EIAJ); 2 740W @ 16 ohm (EIAJ) Dimensions (WxDxH): 483 x 376 x 88.8mm (19" x 14.8" x 3.5") Weight 7.9 Kg (17.4lb) Get Your Alto D4 Today!
These were $719 at the time of this posting, but please click on the product link below to find the current price and availability.
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