Audio System AS 300.2 Car Audio Power Amplifier
250,00 €
Audio System AS 300.2 is a two-channel car audio power amplifier designed for in-car sound systems. Its high-level input allows connection to a factory head unit without RCA outputs, while the RCA input accepts a conventional low-level signal. Output is rated at 300 W RMS × 2 at 4 ohms or 600 W RMS × 2 at 2 ohms. A remote controller with a 5-metre cable is included.
Audio System AS 300.2 is a two-channel car audio power amplifier designed for in-car sound systems. It accepts a signal from a factory head unit or a source equipped with RCA outputs. Its different power ratings apply to specific loads, so speaker impedance is an important consideration when selecting system components.
What this amplifier is designed for
The full-range Class A/B design can amplify the complete audio signal or limit selected frequencies using the integrated filters. Its two-channel configuration suits systems that need to power two speakers or two speaker circuits with impedance matching the amplifier requirements.
A single-channel power rating is also specified, but this connection requires a 4-ohm load. Choose the wiring configuration according to the intended number of speakers, their impedance and their permitted power handling.
Two signal connection options
With a factory head unit, you can use the high-level input. This carries the signal when the head unit does not have low-level preamp outputs.
If your source has RCA outputs, use the low-level RCA input. This is the conventional connection method when replacing the head unit or using another compatible signal source.
A remote controller with a 5-metre cable is included. The cable is long enough to route the controller from the amplifier to a conveniently accessible position in the passenger compartment.
Adjusting the filters and bass boost
The low-pass filter is adjustable from 40 to 4000 Hz and attenuates the higher part of the signal. The high-pass filter is adjustable from 15 to 500 Hz and reduces the lower-frequency content.
Select each crossover point according to the purpose of the connected speakers. Begin with a moderate setting and then make adjustments in small steps. Evaluate the result from your normal listening position inside the vehicle.
The bass boost can be adjusted from 0 to 12 dB. Set it to 0 dB initially. Increase the boost only after adjusting the filters and balancing the overall system volume.
Power and load
With a 4-ohm load, the stated output is 300 W RMS per channel. With a 2-ohm load, it reaches 600 W RMS per channel. The 600 W figure therefore applies only to the specified 2-ohm load.
Single-channel output is stated as 1300 W RMS at 4 ohms. When choosing speakers, consider their impedance and permitted power handling rather than focusing only on the amplifier’s highest figure.
Planning the installation location
The amplifier measures 43 × 18.5 × 5.1 cm. Measure the intended installation area before fitting it and allow room for cables and connections. Secure the housing firmly and do not cover it in a way that prevents air from circulating around it.
Plan the controller cable route before permanently securing the amplifier. This helps avoid an unnecessarily short route, sharp cable bends and an inconvenient controller position.
Technical specifications
| Type | Two-channel car audio power amplifier |
| Operation | Full-range Class A/B |
| High-level input | For a factory-type head unit without preamp outputs |
| Low-level input | RCA |
| Low-pass filter | 40-4000 Hz |
| High-pass filter | 15-500 Hz |
| Bass boost | 0-12 dB |
| Power at 4 ohms | 300 W RMS × 2 |
| Power at 2 ohms | 600 W RMS × 2 |
| Single-channel power at 4 ohms | 1300 W RMS × 1 |
| Dimensions | 43 × 18.5 × 5.1 cm |
| Included | Remote controller with a 5-metre cable |
FAQ
Do I need to replace the factory head unit?
No, provided that the head unit can supply a speaker-level signal. In that case, RCA preamp outputs are not required.
How do I choose the correct speaker impedance?
Impedance is directly related to the power delivered by the amplifier. Your chosen wiring configuration must match the specified 2-ohm or 4-ohm load.
How should I begin adjusting the filters?
Use the low-pass filter to attenuate the higher part of the signal and the high-pass filter to reduce the lower-frequency content.
Where should I install the amplifier in the car?
Check that there is enough room for the 43 × 18.5 × 5.1 cm housing, that the connections remain accessible and that the 5-metre controller cable can be routed safely to the chosen position in the passenger compartment.
