Altec Lansing 288-8K HF DRIVER User Manual

Specifications and Main Features

Modular Construction: Power Amplifier blocks rated at 70.7 volts and 78 watts can be connected in parallel to any configuration.
Remote Fault Indication: Capable for remote monitoring of faults during operation.
Flexible Input Configurations: Inputs can be fitted with one of two different types of modules (with or without stepped attenuators) available.
Continuous Rated Output Power:
- One Output Power Module at 64Ω will offer 78 watts output
- Eight channel together at 8Ω would provide 624 watts
Maximum Midband Output Power(1kHz, 1% THD):
- One Output Power Module at 64Ω will provide 110 watts of output.
- Eight channel together at 8Ω would provide 725 watts.
Frequency Response: 10Hz to 50kHz +/- 0.75db at 8 ohm 1 watt output.
Power Bandwidth: 20Hz to 20 kHz.
Voltage Gain: 39.5 dB at a frequency of one kilohertz as reference.
Input Sensitivity for rated output power: 0 dBu at 1kHz and +0.5dB.
Maximum Input Level:
- 2285A (compression): +15dBu
- 2284A: +1 dBu
Input Impedance: 15k ohm 1 kilohertz balanced.
Damping Factor: Greater than 35 for 100 Hz.
Cross Talk: Greater than 50 dBr re 1 kHz.
Noise Level: Greater than 95 dB with A weighting filter.
Stepped Attenuation: Down to -63 dB in one dB steps for each channel
AC Power: 100/120/200/220/240 Vac, 50/60 Hz; rated output of 1200W and idle of 100W.
Size:
Height: 7 inches (17.8 cm)
Width: 19 inches (48.3 cm)
Depth: 17.5 inches (44.8 cm)
Weight: 70 lb. (31.7kg) with 8 power amplifier modules.
Color: Black.
Accessories: Range of input/output modules and plug-in options offered.

Frequently Asked Questions

Q1: What is the output of power of the 2280B Incremental Power System?

A1: The 2280B Incremental Power System has a continuously rated output of 78watts for a single output power module (64 Ohms) and a 624watts for 8 channels in parallel (8 ohms).

Q2: Is the 2280B only usable on set speaker configurations?

A2: Not in any way, the amplification blocks can be paralleled as required, allowing for variety of audio applications with up to eight 70 volt speaker zones.

Q3: Are there alternatives of input modules compatible with the 2280B?

A3: Yes, the two input modules compatible with the 2280B, one is the 2285A with stepped attenuators, the other is the 2284A without stepped attenuators.

Q4: What is the frequency range that the device can operate in?

A4: The frequency response of the device works in the range of 10Hz to 50kHz (around 1 KHz it is 1 watt output of +0/-3 dB).

Q5: What is the process involved in the fault indication feature?

A5: This system is designed for remote indications of operational faults and thereby enables the user to keep track of the condition of the amplifier modules.

Q6: Does the amplifier has any noise specifications?

A6: Power amplified noise is over 95 dB (Using the A-weighted filter, below the rated output power).

Q7: What is the reading of the input impedance for this device?

A7: It is 15 kΩ (ref. 1 kHz, balanced input) .

Q8: How big is the dimension of the 2280B?

A8: Specifying the dimensions, the unit is 7 inches thick by 19 inches wide along with 17.5 inches depth .

Q9: What sort of power supply is required for the 2280B?

A9: As for the device, it may be used with an AC supply of 100/120/200/220/240 Vac: 50/60 Hz.

Q10: What is the total weight of the 2280B?

A10: Total weight is 70 lbs (31.7 kg) with 8 power amplifier modules.