Description
DS18 MTLOC4 4-Channel High-to-Low Line Output Converter with Remote Turn-On
A four-channel line output converter that creates clean RCA-level outputs while addressing the turn-on and load requirements common in modern factory audio systems.
Overview
Built for the application
The MTLOC4 accepts as much as 40 volts of speaker-level signal and provides up to 11 volts of preamp output, giving aftermarket amplifiers a strong, adjustable input signal.
Selectable 20-, 60-, and 20k-ohm input loads help the converter work with a wider range of factory radios, including systems that monitor speaker loads or mute when a conventional converter is connected.
At a glance
Why it belongs in the system
- Adds four-channel RCA outputs to factory audio systems
- Accepts up to 40V speaker-level input and delivers up to 11V preamp output
- Selectable 20, 60, or 20k-ohm loads help prevent factory-system errors
- Audio-signal, DC-offset, or remote-trigger turn-on simplifies integration
- 10Hz-20kHz response, 0.01% THD, level controls, and selectable ground isolation
Design and setup
Flexible setup without guesswork
Choose audio-signal, DC-offset, or remote-trigger activation, then match output with the independent level controls and clip indicators. Selectable grounded, 200-ohm, or isolated grounding helps resolve noise during installation.
Four-channel conversion
Converts four speaker-level inputs into four RCA outputs and includes a 2-channel/4-channel input selector.
Remote turn-on output
Provides a dedicated remote output for an aftermarket amplifier when the factory source does not supply one.
Full-range signal path
10Hz-20kHz response, greater than 110dB signal-to-noise ratio, and 0.01% THD preserve the source signal.
| Maximum Speaker Level Input | Up to 40V (400 watts RMS) |
| Maximum Preamp Output | Up to 11V |
| Nominal Conversion Ratio | 4:1 |
| Frequency Response | 10Hz - 20kHz |
| Total Harmonic Distortion | 0.01% |
| Signal To Noise Ratio | >110dB |
| Input Impedance | Selectable 20 / 60 / 20k ohms |
| Output Impedance | 100 ohms |
| Power Draw | 130mA |
| Recommended Fuse Rating | 1A |
| Bass Boost | No |
| Auto Turn-On | Yes (Audio Sens / REM / DC) |
| Remote Output | Yes |
| Level Matching Controls | Yes |
| Dash Remote Level Control | No |
| Led Indicators | Power / Clip |
| Housing Material / Color | Aluminum / Black |
| Wiring Connector | 14ga Quick Connector |
| Ground Isolation | Selectable (200 ohms / Isolated / Grounded) |
| Step-Down Method | Transformer |
| Input Selector | Selectable (2ch / 4ch) |
| Overall Length | 5.7" / 145mm |
| Overall Width | 3.5" / 88mm |
| Overall Height | 1.1" / 28mm |