MAIN FEATURES
DLS Signature S4 4-Channel Class AB Amplifier
The DLS Signature S4 is a premium 4-channel Class AB amplifier engineered to deliver exceptional audio quality with ultra-low distortion and an extremely high signal-to-noise ratio. As part of the flagship DLS Signature Series, it provides the warm, natural DLS sound signature with outstanding clarity, dynamic range, and precise speaker control for high-end car audio systems.
Every aspect of the S4 has been meticulously refined, from its precision-tuned power supply to its advanced cooling system and individually calibrated channels. When paired with a Digital Sound Processor, Direct DSP Mode bypasses the preamp circuitry, allowing a pure, unaltered signal to reach the amplifier for maximum sound quality and precise system tuning.
Key Features:
- 4-Channel Class AB Amplifier
- Premium DLS Signature Series Design
- 4 × 130W RMS @ 2 Ohms
- 4 × 90W RMS @ 4 Ohms
- 2 × 260W RMS Bridged @ 4 Ohms
- Ultra-Low Distortion Audio Performance
- High Signal-to-Noise Ratio (116 dB A-Weighted)
- Frequency Response: 10 Hz – 60,000 Hz
- Adjustable High-Pass Filter (50 Hz – 500 Hz)
- Adjustable Low-Pass Filter (50 Hz – 500 Hz)
- Direct DSP Input Mode for Pure Signal Path
- High Damping Factor (>300) for Superior Speaker Control
- High-Level and Low-Level Inputs
- Internal Cooling Fan
- Precision-Tuned Power Supply
- Individually Calibrated Channels
- Warm, Natural DLS Sound Signature
- Ideal for Premium Front Stage and Full-System Installations
- Dimensions: 129 × 320 × 54 mm
- Weight: 2.4 kg
UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).
Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).
Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.
Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.
More information (including international delivery on our Delivery Information page.
MAIN FEATURES
DLS Signature S4 4-Channel Class AB Amplifier
The DLS Signature S4 is a premium 4-channel Class AB amplifier engineered to deliver exceptional audio quality with ultra-low distortion and an extremely high signal-to-noise ratio. As part of the flagship DLS Signature Series, it provides the warm, natural DLS sound signature with outstanding clarity, dynamic range, and precise speaker control for high-end car audio systems.
Every aspect of the S4 has been meticulously refined, from its precision-tuned power supply to its advanced cooling system and individually calibrated channels. When paired with a Digital Sound Processor, Direct DSP Mode bypasses the preamp circuitry, allowing a pure, unaltered signal to reach the amplifier for maximum sound quality and precise system tuning.
Key Features:
- 4-Channel Class AB Amplifier
- Premium DLS Signature Series Design
- 4 × 130W RMS @ 2 Ohms
- 4 × 90W RMS @ 4 Ohms
- 2 × 260W RMS Bridged @ 4 Ohms
- Ultra-Low Distortion Audio Performance
- High Signal-to-Noise Ratio (116 dB A-Weighted)
- Frequency Response: 10 Hz – 60,000 Hz
- Adjustable High-Pass Filter (50 Hz – 500 Hz)
- Adjustable Low-Pass Filter (50 Hz – 500 Hz)
- Direct DSP Input Mode for Pure Signal Path
- High Damping Factor (>300) for Superior Speaker Control
- High-Level and Low-Level Inputs
- Internal Cooling Fan
- Precision-Tuned Power Supply
- Individually Calibrated Channels
- Warm, Natural DLS Sound Signature
- Ideal for Premium Front Stage and Full-System Installations
- Dimensions: 129 × 320 × 54 mm
- Weight: 2.4 kg
UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).
Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).
Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.
Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.
More information (including international delivery on our Delivery Information page.





























































































