Performance Specifications

MX-5050 Performance Specifications↑ TOP

Tape Width & Channels: ¼ inch (6.3 mm) 2 channel (0.075 in. or 1.9 mm track width) 4 channel (0.040 in. or 1.0 mm track width)

Tape Speeds: 7½ and 15 ips (19 and 38 cm/s) 3¾ and 7½ ips (9.5 and 19 cm/s) Maximum deviation 0.15% measured with 1.5 mil (0.038 mm) tape (hysteresis synchronous motor)

Reel Size: 5 and 7 inch plastic or 10½ inch, EIA or NAB

Heads: Two channel versions: Model MX-5050-2S Half-track, Model MX-5050-4S Quarter-track Four head stacks: MX-5050-2S: ½ erase, ¼ reproduce, ½ record, ½ reproduce MX-5050-4S: ¼ erase, ½ reproduce, ¼ record, ¼ reproduce Four channel version: Model MX-5050-QX Four head stacks: erase (tracks 1 and 3), erase (tracks 2 and 4), record (four track), and reproduce (four track) Other head configurations available on special order

Motors: Capstan: Two speed hysteresis synchronous or dc servo controlled motor Reels: Two induction torque motors

Connectors: Line input and line output, standard three-pin XLR. Microphone, standard ¼ inch phone jack

Inputs: Line: Minimum −15 dBm, unbalanced 50 k ohms Minimum −15 dBm, balanced 600 ohms with optional transformer Microphone: Minimum −70 dB, unbalanced, nominal 50 k ohms (high impedance)

Outputs: Line: Level: +4 dBm or −10 dBm rear panel switch selectable Headroom: +19 dBm before clipping Impedance: MX-5050-2S: 600 ohms unbalanced (balanced standard in U.S. and Canada) MX-5050-4S and MX-5050-QX: 600 ohms unbalanced (600 ohms balanced with optional transformer) Headphone Jack: −24 dB, nominal 8 ohms unbalanced

Equalization: NAB standard for 3¾, 7½ and 15 ips (EIA, CCIR, and IEC also available)

Frequency Response: 15 ips: 35 Hz to 22,000 Hz ±2 dB 7½ ips: 30 Hz to 18,000 Hz ±2 dB 3¾ ips: 30 Hz to 12,000 Hz ±2 dB

Signal to Noise Ratio:

Tape Speed	Two Track Weighted	Two Track Unweighted	Four Track Weighted	Four Track Unweighted
15 ips	68 dB	65 dB	65 dB	62 dB
7½ ips	68 dB	65 dB	65 dB	62 dB
3¾ ips	67 dB	64 dB	64 dB	61 dB

Specifications referred to 1000 Hz reference when recorded on 3M 250 or Ampex 456 or equivalent tape using unbalanced output.

Crosstalk: At 1000 Hz on adjacent tracks: Two track: greater than 60 dB Four track: greater than 55 dB

Flutter and Wow: (Measured per NAB weighted): 15 ips: less than 0.05% 7½ ips: less than 0.06% 3¾ ips: less than 0.15%

Distortion: Less than 1% at 1000 Hz at 200 nWb/m

Test Oscillator Frequency: Nominal 1000 Hz

Operating Position: Vertical or horizontal

Power Requirements: 117 volts, 60 Hz, single phase ac, 100 watts. Or 220/240 volts, 50 Hz, single phase ac, 100 watts.

Operating Environment: 40° to 104°F (5° to 40°C) 20 to 80% RH.

Storage Environment: −5° to 113°F (−20° to 45°C) 10 to 80% RH.

Weight: Cabinet: two channel 50 lbs (22.7 kg), four channel 60 lbs (27.2 kg). Portable case: two channel 62 lbs (28.2 kg), four channel 75 lbs (34 kg).

Mounting: Walnut finish cabinet, portable case, or rack mounting kit.

Standard Accessories: Empty 10½ inch NAB reel, NAB reel precision hold down knob, fuse, NAB reel shims.

Otari reserves the right to change specifications without notice or obligation.

Otari Corporation • 981 Industrial Road • San Carlos, California 94070 (415) 593-1648 TWX: 910-376-4890

Printed in USA—B-103A-9-75