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Down4Sound JP454 GREY | 4000W RMS - 4 Channel Amplifier
In stock
Regular price
$649.99
Sale price
$649.99
Regular price
$1,299.99
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Description
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Description
The Down4Sound JP454 is a high‑power, 4‑channel Class D amplifier built for demanding car audio systems. With a total RMS output of 4,000 W, it's designed to drive big door speakers, subwoofers, or full 3‑way setups. The amp offers flexible filter options, clipping indicators, and a control knob for real-time voltage, temperature, and clipping status, making it ideal for serious audio enthusiasts.
Key Benefits
- Massive Output: Delivers 888 W × 4 at 2 Ω and 454 W × 4 at 4 Ω, with a bridged output of 1,645 W × 2.
- Flexible Crossover Controls: Variable high-pass (20 Hz – 800 Hz) and low-pass (50 Hz – 800 Hz) filters, with ×1 and ×10 multipliers for precise tuning.
- Bandpass Mode: Can operate in bandpass configuration on CH1/2 and CH3/4.
- Clipping Indicators: “Signal Clipping IN” and “Clipping OUT” LEDs help monitor distortion levels.
- Remote Control Knob: Aluminum remote with voltage, temperature, thermal, and clipping readouts.
- Robust Build: Dual 1/0-gauge power and ground inputs for heavy-duty wiring.
- Wide Operating Voltage: Supports 9 V to 15.5 V — good for high-power systems.
- High Fidelity: 10 Hz–21 kHz frequency response and 94 dB signal-to-noise ratio for clean, accurate audio.
Technical Specifications
- Frequency Response: 10 Hz – 21 kHz
- Signal-to-Noise Ratio (SNR): 94 dB
- Damping Factor: 170 (tight control over speakers)
- Input Sensitivity: 0.2 V – 6 V
- Filters:
- High-pass: 20–800 Hz (×1 / ×10)
- Low-pass: 50–800 Hz (×1 / ×10)
- Power Ratings:
- 888 W × 4 @ 2 Ω
- 454 W × 4 @ 4 Ω
- 1,645 W × 2 (bridged) @ 4 Ω
- Working Voltage: 9 – 15.5 V
- Clipping Indicators: Red / Blue / Violet LEDs
- Physical Dimensions & Weight
- Dimensions (L × W × H): 15.74″L × 9.37″W × 2.71″H
- Weight: ~25.00 lb (according to Crystal Audio Solutions)
Installation & Compatibility
Use heavy gauge wiring (1/0‑gauge) for both power and ground to reliably deliver the needed current.
Mount in a well-ventilated area to allow the internal cooling fan to work efficiently.
Use the provided remote knob to monitor voltage, temperature, and clipping during tuning.
Set crossovers appropriately:
High-pass: around 80–100 Hz for mid/high speakers (or based on your tuning)
Low-pass: around 80–120 Hz for subwoofers (or per your system needs)
Verify that your electrical system (alternator, battery, wiring) can support the high current draw this amp may demand.
FAQS
- What makes the JP 454 a strong choice for mids and highs?
The JP 454 provides clean, powerful multi-channel output, perfect for midrange drivers and tweeters in high-volume builds. - Can the JP 454 be used in combination with a monoblock amplifier?
Yes, it pairs perfectly with subwoofer amplifiers, allowing you to build a complete multi-amp system. - Does the JP 454 offer good sound quality at high volume?
Definitely—its clean signal and stable power delivery make it ideal for loud, distortion-free playback. - Is the JP 454 compatible with DSP tuning?
Yes, using a DSP enhances system control, providing better crossover points and improved sound definition.
Shipping Information
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
Shipping from the warehouse after you place your order is same day in most cases, but if it's the holidays or a seasonal rush, in most cases it takes 1 to 3 days. If anything comes up, we will notify you via email or call you. Packages usually arrive in 3 to 10 business days, depending on the service. If anything happens after your product is shipped, please contact the service provider (UPS or USPS first), as we can’t act on your behalf once the item is shipped.
Shipping is FREE over $100.00 in the Continental US. Hawaii, Alaska, and US territories will have shipping calculated at checkout. Orders below $100.00 have a shipping cost starting at $25.00, with the final price calculated per order depending on the item or items purchased. International shipping is calculated by Zonos, a third-party international shipping partner. If there are any issues or exclusions with your purchase, we will reach out to notify you.
When you place an order, we will estimate shipping and delivery dates based on item availability and the shipping option you select. Depending on the shipping provider, estimated shipping dates may appear on the shipping quotes page.
IMPORTANT DELIVERY NOTICE: If you feel you live in an unsafe area where a package could be stolen, please ship your order to a safer address. Once the package has been shipped and scanned as delivered, it becomes the responsibility of your home or homeowners insurance. Please be diligent to ensure safe delivery.
We are happy to offer signature-required delivery if requested. If you would like your package to require a signature, please include this request in your order notes. Please note that shipping rates for many items are weight-based. Item weights can be found on the product detail page and are rounded up to the next full pound to comply with shipping carrier policies.
Route Package Protection: We’ve partnered with Route, a package protection and tracking solution, to provide an enhanced delivery experience. Route offers low-cost shipping protection in case your package is lost, stolen, or damaged during transit.
Route also offers a mobile app that allows you to visually track all your online orders in one place—no need to search emails for tracking numbers. Dynamic maps and real-time shipping updates keep you informed throughout the delivery process. The Route app is available on both Android and Apple app stores.
If you experience an issue with your order, please file a claim directly with Route’s support team.
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