{"product_id":"dd-audio-atc-400-1-kanal-verstaerker","title":"ATC-400","description":"\u003cp\u003eDiscover 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.\u003c\/p\u003e\n\u003ch2\u003eDD Audio ATC-400 – 1 Channel Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Highlights of the ATC-400\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eExtremely 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.\u003c\/li\u003e\n  \u003cli\u003eTwo 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.\u003c\/li\u003e\n  \u003cli\u003e1-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.\u003c\/li\u003e\n  \u003cli\u003eFlexible 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.\u003c\/li\u003e\n  \u003cli\u003eBass remote included: Adjust volume directly from the driver's seat – especially helpful for optimizing bass in everyday use or with changing music styles.\u003c\/li\u003e\n  \u003cli\u003eStable connections for power (25 mm²) and speakers (4 mm²): Minimizes losses and ensures a secure power supply even at high currents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Data Overview – ATC-400\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 8–16 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS Power @ 4 Ω:\u003c\/strong\u003e 100 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS Power @ 2 Ω:\u003c\/strong\u003e 225 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS Power @ 1 Ω:\u003c\/strong\u003e 325 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDynamic Power:\u003c\/strong\u003e 500 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Current Draw:\u003c\/strong\u003e 40 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamping Factor:\u003c\/strong\u003e 150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e 1 %\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e SUB 30–80 Hz \/ FR 80–20,000 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Pass Filter:\u003c\/strong\u003e 80 Hz (FR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubsonic Filter:\u003c\/strong\u003e 30 Hz (SUB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Pass Filter:\u003c\/strong\u003e 80 Hz (SUB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Connection:\u003c\/strong\u003e up to 25 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeaker Connection:\u003c\/strong\u003e up to 4 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (mm):\u003c\/strong\u003e 74.5 × 95.5 × 52.2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote Control:\u003c\/strong\u003e Cable bass controller included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Area \u0026amp; Compatibility – ATC-400\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\n\u003ch2\u003eWhat to Consider When Installing – ATC-400\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrectly dimension the power supply: 25 mm² power cable and a 40 A fuse close to the battery ensure stable supply and protect against failures.\u003c\/li\u003e\n  \u003cli\u003eSeal the mounting opening: The terminal opening on the enclosure should be airtight to avoid bass losses due to leaks.\u003c\/li\u003e\n  \u003cli\u003eSet filters cleanly: Choose SUB mode for pure subwoofer applications, FR mode only for specific bandpass or full-range solutions.\u003c\/li\u003e\n  \u003cli\u003eSelect 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConclusion on the ATC-400 Mono Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e","brand":"DD Audio","offers":[{"title":"Default Title","offer_id":53333680128267,"sku":"ATC-400","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/ATC-400-terminal-cup-amplifier2_1.png?v=1788871889","url":"https:\/\/masori.de\/en\/products\/dd-audio-atc-400-1-kanal-verstaerker","provider":"Masori | Shop","version":"1.0","type":"link"}