TOA DA-250F Digital Power Amplifier

Name: TOA DA-250F Digital Power Amplifier
Brand: TOA Electronics
SKU: TOA-DA-250F CU
Price: 1970 USD
Availability: InStock

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DA-250F CU

Model #:

DA-250F CU

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The TOA DA-250F is a 4-Channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 250 W × 4 channels (4 Ω output) using a switching power supply. Each channel is equipped with an independent power section. It can be mounted in an EIA Standard equipment rack (1 unit size).

Description

The DA-250F power amplifier utilizes advanced digital technology to provide multi-channel high power outputs. Featuring high efficiency amplifier topology, the low impedance DA-250F is ideal for various installed sound applications. The lightweight construction and compact dimensions of the DA Series allows for easy placement in virtually any venue, as well as for use in stacked configurations as required. Each amplifier is equipped with low-noise constant speed fans for adequate cooling and designed for ultra-reliable long-term operation with multiple independent power supplies that ensure uninterrupted operation even if a channel fails. Redundant protection circuitry monitors amplifier status and protects the amplifier and system in case of problems.

Features

4x 250W (4 ohms)
170W (8 ohms)
2x 500W bridged mode (8 ohms)
Class D design – 85% efficient
30% lower power consumption than conventional amplifiers
Compact, single rack-space design
Stack up to 5 units without open spaces between units
Lightweight
Independent power supply for each channel
Low heat dissipation
Recessed stepped attenuators
Comprehensive protection circuitry
Removable dust filters for easy maintenance

Specifications

Total output all channel driven	1,000W (1kHz, 4Ω), 680W (1kHz, 8Ω)
Output voltage per channel	31.6V (1kHz, 4Ω), 36.9V (1kHz, 8Ω)
Output current per channel	7.9A (1kHz, 4Ω), 4.6 A (1kHz, 8Ω)
Frequency response	20Hz – 20kHz, ±1dB
Crosstalk at 10kHz (A weighted)	70dB
DC offset	±5mV
Damping factor	100 (1k Hz, 8Ω)
S/N Ratio (A weighted)	100dB
Cooling	Continuously constant speed fan with front-to-rear airflow,50,000 hours life time at 25°C (77°F)
Operating Temperature	–10°C to +40°C (14°F to 140°F)
Operating Humidity	Under 90% RH (no condensation)
Finish	Panel: Aluminum, alumite process, blackCase: Plated steel sheet
Dimensions	1.73" (44 mm) x 18.98" (482 mm) × 15.82" (401.8 mm)
Weight	14.6 lbs (6.6 kg)