TOA / DA-250F Digital amplifier

TOA（ティーオーエー）/ DA-250Fは、定格出力250 W×4（4 Ω負荷）でスイッチング電源を使用した、軽量、コンパクト、高出力、高効率を備えた高音質4チャンネル・デジタルパワーアンプです。

■ Power supply: AC100V 50 / 60Hz
■ Amplification method: Class D amplification method (digital amplifier)
■ Power consumption:
・ 1200W (4Ω x 4 at rated output)
・ 200W (according to the Electrical Appliance and Material Safety Law)
■ Input: 4 circuits + 4dB * (1.23V) (maximum input attenuator), 10kΩ electronic balance wear
■ Detachable terminal block (3P)
■ Rated output:
4 channels: 250W x 4 (4Ω), 170W x 4 (8Ω)
2 channels (BRIDGE): 500W x 2 (8Ω)
M4 screw terminal, barrier interval 8.8mm
■ Frequency response: 20-20,000Hz (± 1dB)
■ Total harmonic distortion: 0.15% (1kHz), 0.3% (20-20,000Hz)
■ Protection circuit: Overcurrent due to overload, short circuit, abnormal DC voltage output, heat sink temperature rise
(110 ° C or higher)
■ S / N ratio: 100dB (JIS-A)
■ Crosstalk: 70dB (JIS-A)
■ Cooling method: Forced air cooling
■ Operating temperature range: -10 ℃ to + 40 ℃
■ Operating humidity range: 90% RH or less (no condensation)
■ Finish:
・ Panel: Aluminum black (Munsell N1.0 approximate color) anodized
・ Case: Plated steel sheet
■ Dimensions: 482W x 44H x 401.4D (mm)
■ Weight: about 6.6kg