TOA TU-651M – 50 W Horn Speaker Driver Unit, IP65
TOA TU-651M – 50 W Horn Speaker Driver Unit, IP65 is backordered and will ship as soon as it is back in stock.
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TOA TU-651M Overview
The TOA TU-651M is a 50-watt driver unit for the TH-650 and TH-660 series horn speakers. Designed for 70V and 100V constant-voltage PA systems, it delivers 110 dB sensitivity (1W/1m) across a 150 Hz to 6 kHz frequency range. The IP65-rated enclosure makes it appropriate for outdoor and demanding indoor installations, and its wide operating temperature range (−20°C to +55°C) covers most exterior environments. Transformer taps for both 100V and 70V line voltages are provided.

Key Features
- 50 W rated power; compatible with TOA TH-650 and TH-660 horn speaker enclosures
- 110 dB sensitivity (1W/1m) over 150 Hz – 6 kHz for high-SPL outdoor PA coverage
- IP65-rated enclosure: dust-tight and protected against water jets for outdoor use
- 100V line taps: 200 Ω, 330 Ω, 670 Ω; 70V line taps: 100 Ω, 200 Ω, 330 Ω, 670 Ω
- Wide operating range: −20°C to +55°C (−4°F to 131°F)
Technical Specifications
| Rated Input Power | 50 W |
|---|---|
| 100V Line Taps | 200 Ω (50W), 330 Ω (30W), 670 Ω (15W) |
| 70V Line Taps | 100 Ω (50W), 200 Ω (25W), 330 Ω (15W), 670 Ω (7.5W) |
| Sensitivity | 110 dB (1W/1m) |
| Frequency Range | 150 Hz – 6 kHz |
| IP Rating | IP65 |
| Operating Temperature | −20°C to +55°C (−4°F to 131°F) |
| Dimensions | Ø139 × 149 mm (Ø5.47″ × 5.87″) |
| Weight | 2.7 kg (5.95 lb) |
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- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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