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The Down4Sound JP95 is a powerful 5-channel Class‑D amplifier designed for full car-audio systems — running four full-range speakers and a dedicated sub channel. With a total RMS power output of 1,500 W, it’s well suited for balanced, high-performance setups. A built-in fan helps keep the amp cool, and a remote bass knob gives you real-time control of the sub channel and system voltage/temperature.

Key Benefits

• Versatile Power Configuration:
• CH5 (sub): 900 W RMS @ 1 Ω 
• Full-range channels (CH1–CH4): 200 W × 4 + 700 W × 1 @ 2 Ω 
• At 4 Ω: 120 W × 4 + 400 W × 1 
• Bridged (4 Ω): 400 W × 2 
• Tuning Flexibility:
• High-pass filters: CH1–CH2 = 20 Hz – 5 kHz; CH3–CH4 = 20 Hz – 500 Hz 
• Low-pass filters on CH3–CH4 with x1 / x10 multiplier. 
• Sub channel (CH5): subsonic filter (10–50 Hz), low-pass (35–250 Hz), and 0–9 dB bass boost. 
• Remote Bass Knob: Includes a wired knob that displays voltage and temperature so you can monitor and adjust while driving. 
• Robust Cooling: Dedicated cooling fan on output side to maintain thermal stability. 
• Protection Circuitry: 4‑way protection (thermal, high/low voltage, speaker short, DC) to safeguard the amp and your system. 
• High Current Design: 0-ga power / ground terminals for handling high power demands. 
• Classic Design Influence: Uses a heatsink design carried over from the JP23 model, blending performance with visual legacy. 

Technical Specifications

• Frequency Response:
• CH1–CH4: 10 Hz – 30 kHz 
• CH5 (bass): 10 Hz – 240 Hz 
• Input Sensitivity: 0.2 – 6 V 
• Signal-to-Noise Ratio: ~95 dB 
• Total Harmonic Distortion (THD): < 0.1% @ 4 Ω 
• Operating Voltage: 9 – 16 V 
• Fuse Rating: 160 A 
• Physical Dimensions & Weight
• Dimensions: 17.71″ L × 7.40″ W × 2.24″ H 
• Weight: (Not clearly specified in spec sheets) — estimated based on similar models

Installation & Compatibility

Ideal for a full-system setup: power your car’s front and rear speakers (or components) + a sub with the same amp.

Use the remote bass knob to fine-tune the sub level from your dash.

Make sure to use high-quality 0-gauge wiring for power and ground to support its high current demands.

Given the amp’s power, ensure proper ventilation — mount in a location where the built-in fan can operate effectively.

Tune crossovers: set appropriate high-pass for your speakers and low-pass + subsonic filter for the sub channel.

FAQS

• What makes the D4S JP95 amplifier unique?
  It’s a versatile multi-channel amp that delivers strong output to mids, highs, and even small subwoofers in one compact unit.
• Can the JP95 power an entire car audio system?
  Yes—its multi-channel layout allows it to run door speakers, tweeters, and a small sub, depending on system design.
• Does the JP95 offer clean sound at high volume?
  Definitely—its Class D architecture keeps distortion low while delivering high-efficiency power.
• Is the JP95 compatible with DSP processors?
  Yes, pairing it with a DSP provides better tuning control and improved overall audio performance.