The ARG6800+ analog audio remote gain distribution amplifier (DA) is a high-performance amplifier that offers remotely controlled audio gain that can be increased for specific applications. Control is selectable to either remote or local. Flat frequency response, carefully controlled roll-off and very low distortion ensure a virtually transparent transmission path. The ARG6800+ DA is designed for use in the 6800+™ modular core processing platform.
The input is over-voltage protected up to 120 V AC or DC. The transformerless, balanced input is normally bridging, but can be terminated by installing a suitable resistor. Unbalanced input is converted to balanced output. Isolation between modules in the mounting frame is better than 90 dB over the entire audio frequency band.


Block Diagram

Block Modules
| ARG6800+ S | ARG6800+ D |
![]() | ![]() |
Specifications and designs are subject to change without notice.
| Balanced Analog Audio Input | |
| Number of Inputs | ARG6800+SR: 1 input
ARG6800+DR: 2 inputs |
| Connector | 3-pin audio connector |
| Signal Type | Balanced |
| Input Impedance | HiZ, >30 ohms |
| Maximum Input Level | +28 dBu |
| CMR Range | ±20 V |
| CMRR | 90 dB @ 60 Hz @ 8 dBu |
| Gain Range | -95.5 to 31.5 dB in 0.5 dB steps
(gain increment tolerance ±0.05 dB) |
| Gain Trim | Local front adjust potentiometers provide ±1.5 dB to set exact unity |
| Balanced Analog Audio Output | |
| Number of Outputs | ARG6800+SR: 4 outputs
ARG6800+DR: 8 outputs |
| Connector | 3-pin audio connector |
| Signal Type | Balanced |
| Output Impedance | 66 ohms |
| Maximum Output Level | +28 dBu |
| Performance | |
| SNR | >90 dB @ unity gain, 20 Hz to 20 kHz relative to +8 dBu signal, unweighted |
| Frequency Response | ±0.05 dB 20 Hz to 20 kHz relative to 1 kHz @ unity gain |
| THD | <0.02%, 20 Hz to 20 kHz @ 24 dBu |
| IMD | <0.02%, SMPTE @ 18 dBu |
| Crosstalk | >85 dB isolation, 20 Hz to 20 kHz |
| Output Isolation | >70 dB, 20 Hz to 20 kHz |
| Channel Monitoring | |
| Channel State | Inactive state if channel <-40 dBu for 5 sec
Active state if channel >-40 dBu for 5 sec |
| Channel Overload | Overload condition if channel >23.5 dBu for 1 sec |
| Power Consumption | 3 W |
| ARG6800+S | 1x4 DA, analog audio remote gain, balanced, 1 slot |
| ARG6800+D | Two 1x4 or one 1x8 DA, analog audio remote gain, balanced, 2 slots |