| Tape Transport |
| Track Configuration |
Tape Width: 1/4 inch
BIII-F (Full Track) = Repro (2T) x 1, Erase (FT) x 1, Rec (FT) x 1, Repro (FT) x 1
BIII-2 (2-Track NAB) = Erase x 1, Rec x 1, Repro x 1
BIII-2E (2-Track DIN) = Erase x 1, Rec x 1, Repro x 1 |
| Motor |
Capstan x 1 (DC brushless PLL servo motor)
Reel x 2 (AC Induction Motor) |
| Reel Size |
max. 10.5 inch NAB |
| Tape Speed |
High Speed Version: 15 ips/7.5 ips
Low Speed Version: 7.5 ips/3.75 ips |
| Tape Speed Accuracy |
max. ±0.2% |
| Tape Speed Deviation |
max. 0.2% |
| Wow and Flutter (Peak Weighted per DIN 45507) |
15 ips: max. ±0.06%
7.5 ips: max. ±0.08%
3.75 ips: max. ±0.12% |
| Start Time (Time required to accelerate to double the specified W&F value) |
15 ips: max. 0.5 s
7.5 ips: max. 0.4 s
3.75 ips: max. 0.3 s |
| Stop Time (Time to stop from Play mode) |
15 ips: max. 0.5 s
7.5 ips: max. 0.3 s
3.75 ips: max. 0.3 s
Time to Stop from Fast Wind: max. 3 s |
| Fast Wind Time |
max. 110 s for 2500 ft (50 Hz)
or max. 90 s for 2500 ft (60 Hz) |
| Line Inputs |
| Mode |
Transformerless Active Balanced |
| Input Impedance |
100 kΩ (20 Hz to 20 kHz) |
| Nominal Level |
+4 dBu |
| Max. Level |
+30 dBu |
| Connectors |
XLR Female type |
| Mic Input |
| Mode |
Transformerless Active Balanced |
| Input Impedance |
+10 kΩ |
| Min. Level |
-70 dBu/-50 dBu/OFF switchable |
| Mic. Impedance |
min. 150Ω |
| Line Outputs |
| Mode |
Transformerless Active Balanced |
| Output Impedance |
max. 5Ω (20 Hz to 20 kHz) |
| Load Impedance |
min. 200Ω |
| Nominal Level |
+4 dBu/-16 dBu switchable |
| Max. Level |
+26 dBu for 200Ω |
| Connectors |
XLR Male type |
| Headphone Output |
| Load Impedance |
8Ω |
| Connector |
1/4" Standard Stereo Phone Jack |
| Electronics |
| Equalization |
NAB/IEC Selectable |
| Standard Reference Flux (*open circuit flux) |
BIII-2, BIII-F: 185/250/320* nWb/m
BIII-2E: 250/320/510* nWb/m |
| REC/REP Frequency Response |
15 ips: 30 Hz to 20 kHz ±2 dB
7.5 ips: 30 Hz to 18 kHz ±2 dB
3.75 ips: 20 Hz to 10 kHz ±2 dB |
| REC/SEL-REP Frequency Response |
15 ips: 250 Hz to 7.5 kHz ±3 dB
7.5 ips: 25 0Hz to 5 kHz ±3 dB
3.75 ips: 250 Hz to 2.5 kHz ±3 dB |
| Signal-to-Noise Ratio (WTD, Track width = 2 mm) |
15 ips: 73 dB (IEC), 72 dB (NAB)
7.5 ips: 70 dB (IEC), 73 dB (NAB)
3.75 ips: 67 dB (IEC), 67 dB (NAB) |
| Total Harmonic Distortion |
max. 0.3% (15 ips 1 kHz, 250 nWb/m, AMPEX 456) |
| Crosstalk |
min. 55 dB |
| Depth of Erasure |
min. 75 dB |
| Test Oscillator |
Sine wave, 1 kHz/10 kHz |
| Bias Frequency |
133 kHz |
| Erase Frequency |
133 kHz |
| Physical |
| Operating Environment |
5 to 40°C (41 to 104°F), 20 to 80% RH |
| Storage Environment |
-20 to 45°C (-4 to 113°F), 10 to 80% RH |
| Dimensions |
525 x 430 x 275 mm (H x W x D) |
| Weight |
28 kg |
| Specifications are subject to change without notice or obligation. |
