| MX-55 Analog Audio Tape Recorder |
| This product has been discontinued. |
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Specifications
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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) switchable
Changeable 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 Reel
Tape Max. Length = 3,280 ft (tape thickness 50 μm) |
| Motor | Capstan = DC Brushless Motor, Quartz PLL Controlled Direct Drive
Reel = 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 s
19.05 cm/s = Less than 0.3 s
9.5 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 |
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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 |
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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 Adapter
10.5" Empty Reel (MX-55N only)
DIN 12" Empty Reel (MX-55D only)
Power Cord
Fuse 1 A x 2
Fuse 2 A x 4
Fuse 5 A x 1
Fuse 5 A (slow blow) x 1
Lubrication Oil (PZ9E003)
Case Foot
Operaiton Manual |
| Optional Accessories | CB-127-S Remote Controller
ZA-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 Bracket
SB-12S Scissors
ZA-5CU Fader Control Kit
PB-1AXAS VEM (Voice Edit Mode) PCB
ZA-5CW Proximity Switch Kit
ZA-5CX Multi Purpose Phone Jack Kit
ZA-5CL Input Transformer
ZA-5CM Output Transformer |
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Specifications are subject to change without notice or obligation.
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