SA4.500
Technical Highlights
- 125 W Leistung je Kanal bei 2 Ω, 4 Kanäle, maximale Stromaufnahme 50 A.
- Stufenlos einstellbarer Hochpassfilter 30–5000 Hz, Lowpass bis 20.000 Hz.
- Micro-Gehäuse misst 121 × 81 × 43 mm, MOSFET-Technik, THD 1,0 %.
- More technical details
Availability for pickups could not be loaded.
Shipping cost calculator
Shipping cost calculator
Rob
Max
Unsure if this product fits your car?
We help you – quickly, personally, and without obligation.
Fill out the form and we'll send you a personalised offer
This product is not universally compatible. Send us your vehicle details and we will check fitment for your model free of charge.
SA4.500 by DD Audio
The 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.
DD Audio SA4.500 – 4-channel Amplifier
The 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.
Technical Highlights of the SA4.500
- Extremely 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.
- 125 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.
- Continuously 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.
- Integrated 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.
- Robust MOSFET technology, oversized components: Ensures low distortion and reliable operation even during long listening sessions at higher levels.
Technical Data Overview – SA4.500
- Channels: 4
- Operating Voltage: 9–16 V
- RMS Power @ 4 Ω: 4 × 75 W / 2 × 250 W bridged
- RMS Power @ 2 Ω: 4 × 125 W
- Max. Current Draw: 50 A
- Damping Factor: 100
- THD: 1.0 %
- Frequency Response: 20–20,000 Hz
- High-Pass Filter: 30–5000 Hz
- Low-Pass Filter: 40–20,000 Hz
- Power Connection: up to 10 mm²
- Speaker Connection: up to 1.5 mm²
- Dimensions (mm): 121 × 81 × 43
- High-Level to RCA Adapter: included
Application Area & Compatibility – SA4.500
The 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.
What to Consider When Installing – SA4.500
- Choose 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.
- Crimp 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.
- Set filters practically: High-pass for front systems usually at 60–80 Hz, separate Subwoofer with appropriate low-pass when bridged.
- Don't forget ventilation: Even small amps generate heat – always ensure some air circulation, especially when installed under seats or in tight niches.
Conclusion on the SA4.500 Amplifier
The 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.