DEQX High-definition power amplifiers are especially suited for its passive and active loudspeaker calibration preamp/processors. Based on N-core D-class technology the fully balanced amplifiers provide state-of-the-art D-class musicality due to unusually low harmonic, intermodulation and Impulse-response distortion. The DEQX amplifiers are available in single-channel, dual-channel, and three-channel versions.
A500x1 (Mono)
A250x2 (Stereo)
A250x3 (Tri-amp)
Primarily, the number of channels - one, two or three. The A500x1 runs in bridged mode and while it will drive a 4 ohm speakers, 8 ohm speakers are recommended.
Generally, the A250x3 is recommended for tri-amped applications, the A250x2 for bi-amped applications, and the A500x1 or A250x2 for full-range passive speakers. If in doubt, ask DEQX for a recommendation for your system and speakers.
The A250x3 is compatible with the HDP-4 and HDP-5. The A250x2 and A500x1 are compatible with the HDP-4, HDP-5, PreMATE and PreMATE Plus.
No, the PreMATE (and HDP-4) do not have a 12V trigger output.
Specifications
| Frequency response | 10 Hz – 50 kHz (+0/−3 dB) |
| Distortion | < 0.0018% (< 10Hz – 20kHz AES17) |
| Dampling factor | > 1000 (f < 20 kHz, Load = 4Ω) |
| A500x1 | A250x2, A250X3 Low/Mid | A250x3 High | |
|---|---|---|---|
| Maximum power, 4 ohms*1 | 400 WRMS | 250 WRMS | 100 WRMS |
| Maximum power, 8 ohms*1 | 500 WRMS | 200 WRMS | 100 WRMS |