Otari Mx-55 N-M

Tape Transport

Track Configuration	1/4" (6.3 mm) Width Tape, 2-track 2-channel, NAB or DIN Stereo
Nom. Tape Speed	38.1 & 19.05 cm/s (15 & 7.5 ips) switchableChangeable to 19.05 & 9.5 cm/s (7.5 & 3.75 ips)
Speed Accuracy	Within ±0.2%
Speed Deviation	Less than 0.2%
Pitch Control	±20% continuously variable control.Percentage or ips readout with 0.01% precision multiturn encoder servo system.
Fast Wind Time	60 Hz = 100 s, 50 Hz = 110 s (2,500 ft tape)
Reel Size	NAB 10.5", 7", 5", EIA (cine), DIN ReelTape Max. Length = 3,280 ft (tape thickness 50 μm)
Motor	Capstan = DC Brushless Motor, Quartz PLL Controlled Direct DriveReel = AC Induction Motor
Head	Plug in head block with full access to independent head height, tilt and azimuth adjustment
Start Time(Time to reach within twice specified wow & flutter.)	38.1 cm/s = Less than 0.5 s19.05 cm/s = Less than 0.3 s9.5 cm/s = Less than 0.2 s
Wow & Flutter(PEAK WTD, DIN45507, IEC Pub.386)	38.1 cm/s = Less than ±0.06%19.05 cm/s = Less than ±0.08%9.5 cm/s = Less than ±0.12%
Tape Timer	Seven segment LED readout from tachometer/logic measurement circuit; indicates tape time in Hours, Minutes and Seconds.
External Speed Control Range	-50%, +100% at all speeds (4.8 to 19.2 kHz)
VEM Tape Speed	+100% with VEM optional accessory and continuous lower speed change accompanying tone change

Electronics (Measured with AMPEX #456 tape. 0 dBu = 0.775 V)

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

Miscellaneous

Power Requirement	100/110/117/200/220/240 VAC, ±10%, single phase 50/60 Hz
Power Consumption	150 VA
Operating Environment	Temperature: 5 to 45°C, Relative Humidity: 20 to 80%
Storage Environment	Temperature: -20 to 45°C, Relative Humidity: 10 to 80%
Weight	30 kg
Dimensions (W x D x H)	440 x 222 x 488 mm
Standard Accessories	NAB Reel Adapter10.5" Empty Reel (MX-55N only)DIN 12" Empty Reel (MX-55D only)Power CordFuse 1 A x 2Fuse 2 A x 4Fuse 5 A x 1Fuse 5 A (slow blow) x 1Lubrication Oil (PZ9E003)Case FootOperaiton Manual
Optional Accessories	CB-127-S Remote ControllerZA-81G-S Stand (with Reel Spacer. Tilt Adjustable)ZA-81B-T Stand (without Reel Spacer)ZA-81D-S Reel Spacer (for ZA-81B-T)ZA-5CG Rack Mount BracketSB-12S ScissorsZA-5CU Fader Control KitPB-1AXAS VEM (Voice Edit Mode) PCBZA-5CW Proximity Switch KitZA-5CX Multi Purpose Phone Jack KitZA-5CL Input TransformerZA-5CM Output Transformer