| Line Input |
3-pin XL Type Connector (female)
Transformerless Active Balanced
Input Impedance: 10 kΩ
Ref. Input Level: +4 dBu (0 to +10 dBu), -16 dBu (-10 to -20 dBu)
Max. Input Level: +30 dBu |
| Mic Input |
3-pin XL Type Connector (female)
Transformerless Active Balanced
Input Impedance: 10 kΩ (20 Hz to 20 kHz)
Min. Input Level: -70 dBu
Microphone Impedance: 150 to 10 kΩ
With Supply Channel (CH1/BOTH/CH2) Selection Switch |
| Line Output |
3-pin XL Type Connector (female)
Transformerless Active Balanced (bal/unbal. switchable)
Output Impedance: 5Ω
Ref. Output Level: +4 dBu (0 to +13 dBu), -16 dBu (-7 to -20 dBu)
Load Impedance: min. 200Ω
Max. Output Level: +26 dBu (bal. load), +21 dBu (unbal. load) |
| Bias and Erase Frequency |
150 kHz |
| Magnetic Flux Level |
MX-55N = 185/250/370 nWb/m (switchable)
MX-55D = 250/320/510 nWb/m (switchable) |
Frequency Response
(Rec/Rep. 0 dB = 250 nWb/m) |
38.1 cm/s = 30 Hz to 20 kHz ±2 dB (0 dB)
19.05 cm/s = 20 Hz to 18 kHz ±2 dB (-10 dB)
9.5 cm/s = 20 Hz to 10 kHz ±2dB (-20 dB) |
Frequency Response
(Sel-Rep) |
38.1 cm/s = 30 Hz to 12 kHz ±3 dB
19.05 cm/s = 20 Hz to 5 kHz ±3 dB
9.5 cm/s = 20 Hz to 2.5 kHz ±3 dB |
| Distortion (38.1 cm/s, 1 kHz, 250 nWb/m) |
Less than 0.3% |
| Crosstalk |
MX-55N = min. 55 dB
MX-55D = min. 50 dB |
Depth of Erasure
(38.1 cm/s, 1 kHz, 1040 nWb/m) |
MX-55N = min. 75 dB
MX-55D = min. 70 dB |
Rec/Rep Signal-to-Noise Ratio
(30 Hz to 18 kHz BPF, UNWTD) |
MX-55N NAB 38.1 cm/s, 1040 nWb/m = 69 dB
MX-55N NAB 19.05 cm/s, 1040 nWb/m = 71 dB
MX-55N NAB 9.5 cm/s, 740 nWb/m = 64 dB
MX-55N IEC 38.1 cm/s, 1040 nWb/m = 71 dB
MX-55N IEC 19.05 cm/s, 1040 nWb/m = 68 dB
MX-55N IEC 9.5 cm/s, 740 nWb/m = 64 dB
MX-55D IEC 38.1 cm/s, 1040 nWb/m = 72 dB
MX-55D IEC 19.05 cm/s, 1040 nWb/m = 69 dB
MX-55D IEC 9.5 cm/s, 740 nWb/m = 65 dB |
| Test Signal Oscillator Frequency |
100 Hz, 1 kHz, 10 kHz Sine Wave, switchable |
