TOA Digital Amplifier technology redefines the very concept of amplifiers.
The power supply unit is the heart of the amplifier.To ensure consistently high performance and reliable operation, TOA engineers have given the DA Series a system that provides power independently to each channel. This testifies to TOA’s attitude to product development, which is always totally motivated by the desire to provide high-quality products that offer worry-free use.
Specification Power Requirement 220-240V AC, 50/60Hz Number of Channels 4 Total output All Channel Driven 2200W(1kHz 4Ohm) 1400W(1kHz, 8Ohm) – DA-550F/ 2000W (1kHz, 20Ohm: 100V line) – DA-500FH Output Voltage per Channel 46.9V, 52.9V – DA-550F / 100V – DA-500FH Output Current Per Channel 11.7A, 6.6A – DA-550F / 5A – DA-500FH Frequency Response 20Hz – 20kHz DA-550F / 50Hz – 20 kHz DA-500FH THD 0.1% (1kHz) 0.15%(20Hz-20kHz) – DA-500F / 0.1% (1kHz) 0.3%(100Hz-20kHz) – DA-550DF S/N Ratio 100dB Crosstalk at 10kHz 70dB DC Offset +/-5mV Voltage Gain 32.6dB – DA-500F / 38.2dB – DA-550FH Damping Factor 95 – DA-500F / 240 – DA-550FH Operating Temperature -10°C to +40°C Operating Humidity Under 90% RH (no condensation) Dimensions 482(W) x 88.4(H) x 404.2(D) mm Weight 9kg Finish Panel: Aluminium, alumite process, black. Case: Plated steel sheet