MTX TX480D – 4-Channel Class D Amplifier 4 × 120 WRMS 2 Ohm
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Delivery information
Delivery information
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Description
Description
Four channels, a compact format, multiple possibilities
The MTX TX480D is a wideband Class D amplifier designed for speakers and subwoofers. It delivers up to 4 × 120 W RMS at 2 ohms, or 480 W RMS in total, in an aluminum chassis measuring 125 × 215 × 50 mm.
at 4 ohms
at 2 ohms
bridged at 4 ohms
in addition to the RCA inputs
Highlights
Versatile amplification
- Four wideband Class D channels.
- Compatible with 2 ohms in stereo and 4 ohms in bridged mode.
- Four-channel or three-channel configurations with a subwoofer.
Flexible settings
- Adjustable high-pass filter from 40 to 400 Hz.
- Adjustable low-pass filter from 40 to 400 Hz.
- Filter slopes of 12 dB/octave.
Compact integration
- All-aluminum construction with surface-mounted components.
- Elna and IRF components.
- Thermoregulated connector for an external fan.
Description
The TX480D allows you to build a four-channel system for front and rear speakers, or a three-channel configuration combining front speakers with a subwoofer or passive enclosure. Its Class D operation aims to provide efficient amplification while maintaining a small footprint.
Available from Sound Auto Concept, this amplifier combines adjustable active filters with a connection set including a high-level input and RCA inputs with a sensitivity of 200 mV to 6 V. You can thus adapt the filtering to the speakers used and reserve the low frequencies for the subwoofer in a mixed system.
- Four channels: amplification of front and rear speakers.
- Three channels: front speakers and two bridged channels for a subwoofer, respecting the 4-ohm load in bridged mode.
- Two bridged channels: 2 × 240 W RMS at 4 ohms.
- 125 × 215 × 50 mm format to make choosing the location easier.
- Distinction mentioned in the source: "best Class D amp" by Car&Hifi magazine, September 2017 issue.
Technical specifications
| Feature | Value |
|---|---|
| Model | MTX TX480D |
| Architecture | 4-channel wideband Class D amplifier |
| Use | Speakers and subwoofers |
| Indicated power certification | CEA2006 |
| Power at 4 ohms | 4 × 80 W RMS, THD+N ≤ 1 % |
| Power at 2 ohms | 4 × 120 W RMS, THD+N ≤ 1 % |
| Power in bridged mode at 4 ohms | 2 × 240 W RMS, THD+N ≤ 1 % |
| Total power at 2 ohms | 480 W RMS |
| Indicated compatible loads | 2 ohms in stereo, 4 ohms in bridged mode |
| High-pass filter | Adjustable from 40 to 400 Hz, 12 dB/octave |
| Low-pass filter | Adjustable from 40 to 400 Hz, 12 dB/octave |
| Signal-to-noise ratio at 1 W | > 80 dB |
| THD + noise at 1 W | ≤ 1 % |
| Frequency response | 5 to 30000 Hz, ± 1 dB |
| RCA input sensitivity | 200 mV to 6 V |
| High-level input | Yes |
| Construction | All aluminum, SMD technology, Elna and IRF components |
| External cooling | Thermoregulated connector for external fan |
| Dimensions | 125 × 215 × 50 mm |
Why choose it
- To amplify front and rear speakers with a single compact device.
- To build a front + subwoofer system thanks to the bridging option.
- To adapt the filtering with adjustable high-pass and low-pass filters over a range of 40 to 400 Hz.
- To have a high-level input in addition to the RCA inputs.
- To benefit from an aluminum construction with SMD components in a format of only 50 mm in height.
⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier to the impedance recommended by the manufacturer and to use the recommended cable size. For amplifiers over 2000 W RMS, the vehicle's original battery is no longer sufficient. It is strongly recommended to adapt the electrical power supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of failure and guarantee optimal performance. CAUTION: Any voltage drop below 12 V can damage the product.
Choose your configuration before wiring
Respect the stated compatibility of 2 ohms in stereo and 4 ohms in bridged mode. Adapt the power handling of the speakers or subwoofer to the RMS power of the chosen setup. Since the power cable section is not specified in the provided data, refer to the manufacturer's manual.
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