รายละเอียดย่อ :
Driver Unit (Horn Driver). ยูนิตฮอร์น 
Variable 70 / 100V Line Impedance Transformer. 
30W Rated Input. 150 - 6,000Hz.
 
รายละเอียดทั้งหมด :
 
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TOA TU-631M Driver Unit (Horn Driver). Transformer.  ยูนิตฮอร์น 50W Rated Input Horn Driver Unit with Variable 70/100V Line Impedance Transformer and 150-6,000Hz Frequency Response and 110dB Sound Pressure Level. (In compliance with IP 65)
 
 
| Specifications |  
| Applicable Horns | TH-650, TH-660, TH-100* and TH-200* |  
| Rated Input | TU-631M: 30 W TU-651M: 50 W
 |  
| Line Voltage | 100V line or 70V line |  
| Rated Impedance | TU-631M: 100V line; 330Ω (30W), 670Ω (15W), 1kΩ (10W), 2kΩ (5W) 70V line; 170Ω (30W), 330Ω (15W), 670Ω (7.5W), 1kΩ (5W), 2kΩ (2.5W)
 TU-651M: 100V line; 200Ω (50W), 330Ω (30W), 670Ω (15W)
 70V line; 100Ω (50W), 200Ω (25W), 330Ω (15W), 670Ω (7.5W)
 |  
| Sensitivity | 110 dB (1W, 1m) (When operated with JIS C 5504 standard horn.) |  
| Frequency Response | 150 - 6,000 Hz (When operated with JIS C 5504 standard horn.) |  
| IP Code | IP 65 (When a driver is operated with a horn.) |  
| Horn Coupling | 1-3/8, 18 threads (inch screw) |  
| Polarity | Hot; Black, Com; White |  
| Operating Temperature | TU-631M: -20ºC to +60ºC (-4°F to +140°F) (must be free from dew condensation) TU-651M: -20ºC to +55ºC (-4°F to +122°F) (must be free from dew condensation)
 |  
| Finish | Flange; Aluminum, gray, powder coating/Rear cover; ABS resin, gray/Screws; Stainless steel/Speaker cable; Polyvinyl chloride insulated cabtyre cable (6mm in diameter, 600mm in length) |  
| Dimensions | ø139 x 149 (D) mm (ø5.47" x 5.87") |  
| Weight | TU-631M: 1.9 kg (4.19 lb) TU-651M: 2.7 kg (5.95 lb)
 |  
| Option | Driver unit cover; UC-200A |    |