DA-250FH CU | DIGITAL POWER AMPLIFIER- 4X 250 W @ 70V- 2X 500 W @ 140V (1U)

DA-250FH CU
DIGITAL POWER AMPLIFIER- 4X 250 W @ 70V- 2X 500 W @ 140V (1U)

The TOA DA-250FH is a 1U, four-channel Class-D power amplifier engineered for constant-voltage distributed audio. It delivers 250 W x4 at 70 V (19.6 O), with bridge mode available for 500 W x2 at 140 V (39.2 O). Each channel has an independent power section and electronically balanced inputs, with a convenient “CH1-to-All” link for single-source distribution. Performance highlights include 20 Hz–20 kHz frequency response (±1 dB, HPF off), =0.1% THD at 1 kHz, 100 dB S/N (A-weighted), and 70 dB crosstalk. Integrator-friendly touches include recessed level controls with security covers, low-noise constant-speed fans, removable front air filters, stacking capability, tamper-resistant covers, and comprehensive protection (over-current/short, DC, over-temp with per-channel relays and turn-on delay). Power is efficient—~200 W at 1/8 power and 1,200 W at full rated output—and the chassis is 1RU (19" W x 1.7" H x 15.8" D) and 6.6 kg. For galvanic isolation from the 70 V speaker line, add the MT-251H matching transformer (optional). Ideal for BGM, paging, and multi-zone 70 V systems in education, hospitality, transportation, corporate, and worship spaces.

Use Options: 70 V distributed audio in schools/campuses, hotels, retail, offices, transportation hubs, and worship spaces.  Multi-zone BGM + paging where compact 1RU footprint, low maintenance (cleanable filters), and CH1-to-All signal linking speed up installs.