ATC-400
Technical Highlights
- 1-Ohm-stabil, bis 325 W RMS-Leistung für optimale Soundqualität.
- Kompaktes Design, 74,5x95,5x52,2 mm, ideal für platzsparende Montage.
- Flexible 8-16 V Betriebsspannung und 40 A Maximalstromaufnahme.
- More technical details
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ATC-400 by DD Audio
Discover the ATC-400 from DD Audio, an ultra-compact 1-Channel Amplifier designed specifically to directly replace the terminal in DD Audio LE series enclosures. The ATC-400 offers an easy way to convert subwoofer enclosures to active operation without needing extra space for large amplifiers. With its flexible use in various setup modes and 1-ohm stability, this amplifier provides a practical solution for everyday-oriented SQ setups. Thanks to its clever turn-on logic and stable connections, it is compatible with almost all radio systems, while the included bass remote allows for easy volume adjustment.
DD Audio ATC-400 – 1 Channel Amplifier
The DD Audio ATC-400 is an ultra-compact 1-Channel Amplifier designed specifically to directly replace the standard terminal in DD Audio LE series enclosures. This makes the ATC-400 ideal for users who want to easily and space-efficiently convert their subwoofer enclosure to active operation – without the need for additional installation of large amplifiers or complicated wiring through the trunk. I like to install the ATC-400 when a coherent subwoofer upgrade is needed that also excels in everyday-oriented SQ setups with clean transitions.
Technical Highlights of the ATC-400
- Extremely compact design (74.5 × 95.5 × 52.2 mm): Allows for direct mounting instead of the terminal field – saves installation time and provides a tidy look without additional brackets.
- Two operating modes via crossover: With SUB mode (30–80 Hz) for subwoofer operation and FR mode (80 Hz–20 kHz) for full-range applications, it is flexibly usable – ideal when different setups or bandpass solutions are required.
- 1-ohm stable with up to 325 W RMS: Delivers enough power for many compact to medium subwoofers while remaining absolutely practical for everyday use – no clipping, no overheating under sensible operation.
- Flexible turn-on logic: Either classic remote, signal-sense via RCA, or high-level/DC trigger (adapter optional) – practical for factory radios without a dedicated remote output.
- Bass remote included: Adjust volume directly from the driver's seat – especially helpful for optimizing bass in everyday use or with changing music styles.
- Stable connections for power (25 mm²) and speakers (4 mm²): Minimizes losses and ensures a secure power supply even at high currents.
Technical Data Overview – ATC-400
- Channels: 1
- Operating Voltage: 8–16 V
- RMS Power @ 4 Ω: 100 W
- RMS Power @ 2 Ω: 225 W
- RMS Power @ 1 Ω: 325 W
- Dynamic Power: 500 W
- Max. Current Draw: 40 A
- Damping Factor: 150
- THD: 1 %
- Frequency Response: SUB 30–80 Hz / FR 80–20,000 Hz
- High Pass Filter: 80 Hz (FR)
- Subsonic Filter: 30 Hz (SUB)
- Low-Pass Filter: 80 Hz (SUB)
- Power Connection: up to 25 mm²
- Speaker Connection: up to 4 mm²
- Dimensions (mm): 74.5 × 95.5 × 52.2
- Remote Control: Cable bass controller included
Application Area & Compatibility – ATC-400
The ATC-400 was developed as a drop-in solution for DD Audio LE subwoofer enclosures but can also be installed in any other enclosure with a suitable mounting area. The amplifier is particularly practical in vehicles where there is little space for traditional amplifiers or where a discreet installation is desired. The flexible turn-on logic makes it compatible with almost all factory and aftermarket radios. It is sensible to combine it with pre-assembled power kits (25 mm²) and, depending on the vehicle, additional insulation in the trunk.
What to Consider When Installing – ATC-400
- Correctly dimension the power supply: 25 mm² power cable and a 40 A fuse close to the battery ensure stable supply and protect against failures.
- Seal the mounting opening: The terminal opening on the enclosure should be airtight to avoid bass losses due to leaks.
- Set filters cleanly: Choose SUB mode for pure subwoofer applications, FR mode only for specific bandpass or full-range solutions.
- Select turn-on logic suitable for the radio: REM for aftermarket radio, RCA signal-sense for factory radio without remote, use DC trigger only with suitable high-level adapter.
Conclusion on the ATC-400 Mono Amplifier
The ATC-400 is the smart choice for anyone looking to activate subwoofer enclosures elegantly and without extensive additional wiring. For pure SPL setups, there are larger models – but for everyday use, SQ, or quick, hidden installation, the ATC-400 offers a well-thought-out solution with practical features.