{"product_id":"dd-audio-sa4-500-4-kanal-verstaerker","title":"SA4.500","description":"\u003cp\u003eThe 4-channel Amplifier SA4.500 from DD Audio offers a compact and powerful solution for your vehicle. It is equipped with four full-fledged channels and allows for flexible and discreet installation due to its small micro housing of 121 × 81 × 43 mm. With a power of 125 W per channel at 2 Ω and continuously adjustable high-pass and low-pass filters, it provides versatile customization options for various speaker setups. The integrated high-level input allows you to connect the amplifier directly to OEM radios or modern head units, even if no RCA output is available. The robust MOSFET technology ensures reliable operation even during longer music sessions.\u003c\/p\u003e\n\u003ch2\u003eDD Audio SA4.500 – 4-channel Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe DD Audio SA4.500 brings a real power upgrade in a small space: With four full-fledged channels and a compact micro housing, the SA4.500 is perfect for vehicles where classic amplifiers hardly fit. I like to install it in modern cars when a speaker upgrade is due, and both sound quality and performance are more important than pure show. Especially recommended for SQ-oriented setups or as an all-rounder for front\/rear systems with plenty of power reserves.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Highlights of the SA4.500\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eExtremely compact housing (121 × 81 × 43 mm): Fits under the seat, in the glove compartment, or other hidden areas – ideal for a clean installation without visibly mounted amplifiers.\u003c\/li\u003e\n  \u003cli\u003e125 W per channel at 2 Ω (4 × 125 W RMS): More than enough power for high-quality component systems, powerful coaxial speakers, or even bridged channel pairs for small Subwoofers.\u003c\/li\u003e\n  \u003cli\u003eContinuously adjustable high-pass and low-pass filters (HPF 30–5000 Hz, LPF 40–20000 Hz): Allow precise adjustment for any speaker setup, without external DSP or crossover box.\u003c\/li\u003e\n  \u003cli\u003eIntegrated high-level inputs including adapter: Allows direct connection to the factory radio or OEM head unit, even if no RCA output is available – saves time and simplifies retrofitting.\u003c\/li\u003e\n  \u003cli\u003eRobust MOSFET technology, oversized components: Ensures low distortion and reliable operation even during long listening sessions at higher levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Data Overview – SA4.500\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 9–16 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS Power @ 4 Ω:\u003c\/strong\u003e 4 × 75 W \/ 2 × 250 W bridged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRMS Power @ 2 Ω:\u003c\/strong\u003e 4 × 125 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Current Draw:\u003c\/strong\u003e 50 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamping Factor:\u003c\/strong\u003e 100\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e 1.0 %\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20–20,000 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Pass Filter:\u003c\/strong\u003e 30–5000 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Pass Filter:\u003c\/strong\u003e 40–20,000 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Connection:\u003c\/strong\u003e up to 10 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeaker Connection:\u003c\/strong\u003e up to 1.5 mm²\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (mm):\u003c\/strong\u003e 121 × 81 × 43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Level to RCA Adapter:\u003c\/strong\u003e included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Area \u0026 Compatibility – SA4.500\u003c\/h2\u003e\n\u003cp\u003eThe SA4.500 is the solution for anyone who wants to implement a 4-channel setup in a tight installation space – for component or coaxial systems in the front and rear or for bridged applications with small Subwoofers. Thanks to high-level inputs, the amplifier is ideal for vehicles with OEM radios or modern head units without RCA output. The flexible filter section makes it universally applicable. A combination with high-quality speakers and a 10 mm² power kit is sensible. For even more sound quality, pre-installed door damping is recommended.\u003c\/p\u003e\n\n\u003ch2\u003eWhat to Consider When Installing – SA4.500\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eChoose the power supply correctly: Despite its compact dimensions, the SA4.500 requires a 10 mm² cable and a 50 A fuse for clean power supply without drops.\u003c\/li\u003e\n  \u003cli\u003eCrimp speaker cables cleanly: Up to 1.5 mm² is possible, always ensure a firm fit and correct connection, otherwise power losses or disturbances may occur.\u003c\/li\u003e\n  \u003cli\u003eSet filters practically: High-pass for front systems usually at 60–80 Hz, separate Subwoofer with appropriate low-pass when bridged.\u003c\/li\u003e\n  \u003cli\u003eDon't forget ventilation: Even small amps generate heat – always ensure some air circulation, especially when installed under seats or in tight niches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConclusion on the SA4.500 Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe SA4.500 is perfect for anyone who wants to retrofit a daily vehicle with modern speakers uncompromisingly but has little space for classic amplifiers. It delivers enough power, a flexible filter section, and is also a real recommendation for SQ fans with OEM head units. For SPL extremists, there are larger models – here the practical upgrade is the focus.\u003c\/p\u003e","brand":"DD Audio","offers":[{"title":"Default Title","offer_id":53333680193803,"sku":"SA4.500","price":159.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/9478\/5927\/files\/SA5.500-4-ch-amplifier-04_1.jpg?v=1788871782","url":"https:\/\/masori.de\/en\/products\/dd-audio-sa4-500-4-kanal-verstaerker","provider":"Masori | Shop","version":"1.0","type":"link"}