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Aphex 124A - Bi-Directional Audio Level Matching Interface
The 124A Audio Level Interface from Aphex is designed to allow the connection and use of consumer hi-fi equipment and electronic keyboards, with professional and industrial audio systems. It provides an extremely clean, reliable two-way buffer, so that both systems can operate at maximum performance levels, matching both impedance and operating levels.
Plugging a -10dBV level output (such as is commonly found on synthesizers or consumer hi-fi systems) into a +4dBu professional level source results in very low audio levels. The reverse is also true, except that here, the output is too hot for the unbalanced inputs. Noise and dynamic range are compromised when compensating for such a hookup by boosting or cutting signal.
The inputs and outputs of the 124A are transformerless, for wide, flat frequency response. Hum and noise rejection is very high, while distortion is almost non-existent. The unit is actively balanced and buffered in both directions, with very low output impedance. In addition, all inputs and outputs are carefully filtered to provide freedom from RF interference.
- Matches consumer IHF equipment to professional equipment
- Dual buffered interface
- Transformerless outputs
- Servo-balanced inputs and outputs
- Push-button 600Ω input termination
- Clip indicator
- Recessed controls
- Internal power supply
| Frequency Response | 5Hz to 100kHz, +0/-0.5dB |
| Noise Level | Not specified by manufacturer |
| Maximum Input Level |
Unbalanced: +15dBV (referenced 1V) Balanced: +30dBm |
| Maximum Output Level |
Unbalanced: +18dBV (referenced 1V) Balanced: +25dBm |
| Input Connectors |
2 x RCA 2 x XLR |
| Output Connectors |
2 x RCA 2 x XLR |
| Input Impedance |
Unbalanced: 18kΩ Balanced: 100kΩ with front panel 600Ω termination switch |
| Output Impedance |
Unbalanced: 150Ω Balanced: 65Ω |
| Dimensions (WxDxH) | 8.25 x 7.25 x 1.75" (210 x 184 x 45mm) |
| Weight | 3.5 lbs (1.6 kg) |
Cables
-
- Original: $3.99
- Save: $0.40
- Price: $3.59
Rack Accessories
- Price: $45.00
This is a special order item. Est. arrival at B&H is 7-14 days (subject to availability). Your order will be charged at the time of shipment.
What's in the Box
- AC Power Cord
- One Year Warranty
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