| Power Source | AC mains 50/60Hz, or 24V DC (M4 screw terminal) | 
| Output | 30W | 
| Power Consumption | AC operation: 80W (rated output), 37W (EN60065) 24V DC operation: 2.0A (rated output), 1.0A (EN60065)
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| Frequency Response | 50 - 20,000Hz ±3dB | 
| Distortion | Under 2% at 1kHz, rated power | 
| Input | MIC 1: -60dB*, 600Ω, electronically-balanced, combined type of XLR-3-31 equivalent and phone jack DIN socket (5 pins) MIC 2, 3: -60dB(*1), 600Ω, electronically-balanced, combined type of XLR-3-31 equivalent and phone jack
 AUX 1(MOH): -20dB*, 10kΩ, unbalanced RCA pin jack
 AUX 2: -20dB(*1), 10kΩ, unbalanced, RCA pin jack
 AUX 3: -20dB(*1), 10kΩ, unbalanced, RCA pin jack combined type of XLR-3-31 and phone jack
 TEL(*2): -20dB*1, 10kΩ, electronically-balanced, M3 screw terminal
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| Output | REC: 0dB(*1), 600Ω, unbalanced, RCA pin jack LINE 1,2(*3): 0dB(*1), 600Ω, unbalanced, RCA pin jack
 MOH: 0dB(*1), 600Ω transformer balanced, M3 screw terminal
 SPEAKER SELECTOR:
 2 zone, high impedance (100V line/330Ω), individual selector switch, M4 screw terminal
 DIRECT SPEAKER OUT:
 High impedance (100V line/330Ω),M4 screw terminal
 Low impedance (4 - 16Ω), M4 screw terminal
 (Both Low and High impedance terminals cannot be used at the same time.)
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| Phantom Power | ON or OFF for each MIC 1 - 3 with switch setting | 
| S/N ratio (Band Pass: 20 - 20,000Hz)
 | Over 100dB (Master volume: min) Over 76dB (Master volume: max)
 Over 60dB (MIC 1 - 3))
 Over 76dB (AUX 1 - 3)
 Over 90dB (TEL)
 Over 96dB (EMERGENCY)
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| Control Input | Bass: ±10dB at 100Hz, Treble: ±10dB at 10kHz TEL: No-voltage make contact input, open voltage: 24V DC, short-circuit: under 5mA, M3 screw terminal
 EMERGENCY (*4): No-voltage make contact input, open voltage: 24V DC, short-circuit: under 10mA, M3 screw terminal
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| Control Output | Power remote: Open collector output, withstand voltage: 35V DC, control current: under 50mA, M3 screw terminal | 
| Indicator | 5 point LED output level meter, Power indicator LED, Zone indicator LED, Emergency LED, TEL LED | 
| Priority | EMERGENCY: Overrides other inputs TEL: Overrides other inputs except “EMERGENCY”, ON/OFF selectable with switch setting
 MIC 1: Overrides other inputs except “EMERGENCY & TEL”, ON/OFF selectable with switch setting
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| Operating Temperature | -10ºC - +40ºC | 
| Finish | Panel: ABS resin, black, hair line Case: Steel plate, black
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| Dimensions | 420 (W) x 107.7 (H) x 367 (D)mm | 
| Weight | 8.1kg | 
| Accessory | Power cord x 1, Terminal block cover x 1,
 Terminal block cover mounting screw x 2
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| Option | Rack mounting bracket: MB-25B, Volume control cover: YA-920,
 Input transformer: IT-453A
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| Note* | (*1) 0dB = 1V (*2) Can be transformer-balanced with the addition of optional IT-453A input transformer.
 (*3) LINE 1 and LINE 2 outputs can be interlocked with ZONE 1 and ZONE 2 speaker selectors, respectively. (This function needs internal modification.)
 (*4)Operation when activated can be selected from the following: Turning ON the unit's power (factory-preset) or OFF. (The OFF function needs internal modification.)
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