| |
FEATURES |
|
APPLICATIONS |
 |
Servo-Balanced input and outputs |
|
Radio and TV broadcasting |
|
Individual output level controls |
|
Press feeds |
|
Wide bandwidth and dynamic range |
|
Sound Reinforcement |
|
Compact 1/2 rack steel package |
|
Dubbing facilities |
|
Cost Effective |
|
Tape duplication facilities |
|
Sonically transparent |
|
Recording studios |
|
+25dBm output level into 600 Ohms |
|
Telephone line driver |
|
Short-circuit proof |
|
Mobile Radio and TV units |
|
Fully RF protected |
|
Post production facilities |
|
Recessed output level controls |
|
|
 |
| PERFORMANCE |
|
The 120 was designed to be as transparent as possible. This means wide, flat frequency response,
excellent transient reproduction and a dynamic range surpassing digital. This allows the 120 to be used in the most critical applications, as
well as distributing SMPTE time code if necessary. Compact, rugged package provides maximum shielding and is equally at home on the ground in
a location shoot or mounted in a studio's rack.
|
| INPUT |
|
The input circuit is a true instrumentation type, adjusted for good common-mode rejection. Servo-balancing
compensates for high common-mode voltages, so headroom isn't sacrificed. The high input impedance allows bridging of the input signal with minimum
loading. This way several amplifiers can be easily driven from the source. The input circuit is fully RF protected.
|
| OUTPUTS |
|
The individual output amplifiers are very low impedance so long lines and capacitive loads are
easily driven with no loss of stability or high frequency response. Servo-balancing permits the outputs to be used single-ended at any time without
a change in gain by simply grounding the unused pin. Individual output level controls are recessed for bump-proof operation, yet can be easily
adjusted without tools. Each output is RF protected and fully short-circuit proof with a front panel clip indicator.
|
| APPLICATIONS |
|
The 120 will find use in a wide variety of applications, including TV and radio broadcast, production
and post production, recording studios, tape duplication and dubbing stages anywhere a high quality, reliable signal distribution system is required.
|
|
|
| SPECIFICATIONS - Aphex Model 120A Servo-Balanced Distribution Amp |
| AUDIO |
|
|
| |
Frequency Response |
5Hz - 100 kHz (+0, -0.5dB) |
| |
Dynamic Range |
94 dB |
| |
Hum and Noise |
Better than -90 dBm at unity gain |
| |
THD |
0.002% @ +4dBm, 0.005% @ +20dBm |
| |
IMD |
0.002% @ +10dBm |
| |
Channel Isolation |
> 70dB |
| |
Slew Rate |
13 V/usec |
| INPUT |
|
|
| |
Connector |
XLR 3-pin Female |
|
| |
Type |
Transformerless, differential servo balanced |
| |
Impedance |
100k ohms balanced |
|
| |
Maximum Level |
+25 dBm |
|
| |
CMRR (typical) |
> 45 dB |
|
| OUTPUT |
|
|
| |
Connector |
XLR 3-pin Male |
|
| |
Impedance |
65 ohms |
|
| |
Maximum Level |
+25dBm into 600 ohms balanced, +21dBm unbalanced |
| |
Output Gain Range |
±15 dB |
|
| OTHER SPECIFICATIONS |
| |
Power Requirements |
100, 120, 220, OR 240 VAC, 50-60Hz (specify voltage) |
| |
Dimensions |
1.75"H x 8.25"W x 7.25" D (44.5mm
x 209.5mm x 184.2mm) |
| |
Net Weight |
3.5 lbs (1.6 kg) |
|
|
|
|
|
|
|
|
|
|
|
