JBL DSP4086 8-Channel Class-D DSP Amplifier
Key features
- Amplifier channels: 8
- RMS per channel at 4 ohms: 40 W
- RMS per channel at 2 ohms: 60 W
- Frequency response (-3 dB): 10 Hz–22 kHz
- Equalizer: 31-band parametric or graphic
- DSP presets: Saves up to 10 configurations
JBL DSP4086 8-Channel Class-D DSP Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Build a multi-channel car audio system with amplification and digital signal processing in one unit. The JBL DSP4086 8-channel Class-D DSP amplifier delivers 40W RMS x8 at 4 ohms or 60W RMS x8 at 2 ohms, with a 31-band EQ, time alignment, and active crossovers.
Its 6 audio inputs feed 8 powered output channels, giving you options for front speakers, rear fill, a center channel, and a subwoofer. Tune the system through a PC interface instead of adding a separate DSP processor.
Key Features & Benefits
- Eight Class-D output channels: Power multiple speakers from one amplifier chassis.
- Integrated DSP: Use selectable graphic or parametric EQ, time alignment, and active crossovers to shape your system.
- Six inputs and eight outputs: Configure a multi-channel layout from a single unit.
- Wired subwoofer level control: Adjust subwoofer level from the driver’s seat across a -30dB to +6dB range.
- Conformal-coated circuit board: The coating is specified as moisture- and vibration-resistant for automotive, motorcycle, marine, and powersports applications.
- Class-D design: The source describes lower heat and current draw, useful when planning a compact installation.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | JBL |
| Model | DSP4086 |
| Amplifier Class | Class-D |
| Input Channels | 6 |
| Output Channels | 8 |
| Power Output (4Ω) | 40W RMS x8 |
| Power Output (2Ω) | 60W RMS x8 |
| Peak Power | 1,000W |
| THD+N | <1% |
| Frequency Response | 10Hz – 22kHz (-3dB) |
| Signal-to-Noise Ratio | >90dB @ 4Ω |
| EQ | 31-Band Graphic or Parametric (Selectable) |
| Time Alignment | Yes (PC Tunable) |
| Active Crossovers | Yes (PC Tunable) |
| Sub Level Control | -30dB to +6dB (Wired Remote) |
| Operating Voltage | 8V – 16V |
| Fuse Rating | 40A |
| PCB Coating | Conformal (Moisture/Vibration Resistant) |
| Weight | Approx. 1 kg (1,000 g) |
Why Choose This Product?
The DSP4086 combines eight amplifier channels with system tuning tools in one chassis. That can simplify a build that needs separate speaker zones and DSP adjustments without adding a standalone processor.
Use the PC tuning interface to adjust EQ, crossover points, and time alignment for your system. The included wired remote gives you a separate subwoofer level adjustment at the driver’s seat.
Installation & Compatibility Notes
The source recommends 8-gauge power and ground wire, with the 40A fuse placed within 18 inches of the battery. Confirm the installation can support the amplifier’s 8V–16V operating range and 40A fuse rating.
A suggested full-active channel layout is channels 1+2 for front tweeters with a 3–4kHz high-pass, channels 3+4 for front woofers with an 80Hz–3kHz band-pass, channels 5+6 for rear fill with an 80Hz high-pass, and channels 7+8 for a subwoofer with an 80Hz low-pass. The PC interface is used to set time alignment and EQ.
The source describes under-seat, behind-panel, and motorcycle-fairing mounting locations. Check available space and installation requirements for your vehicle or application before choosing a location.
Frequently Asked Questions
Does the DSP4086 need a separate DSP processor?
No. It includes a 31-band graphic or parametric EQ, time alignment, and active crossovers.
How do you tune the DSP4086?
Use its PC interface and JBL DSP tuning software to adjust EQ, time alignment, crossover points, and channel levels. The source describes a USB connection for tuning.
Can the DSP4086 run a subwoofer?
A suitable subwoofer can use an individual output channel with an appropriate low-pass filter, within the amplifier’s per-channel power and impedance ratings. The DSP4086’s speaker outputs cannot be bridged. For greater subwoofer power, use a suitable separate amplifier; JBL describes feeding its high-level inputs from the DSP4086 outputs with the output levels adjusted correctly.
What remote control is included?
A wired remote subwoofer level control is included, with an adjustment range of -30dB to +6dB.
Explore More
Shop the JBL DSP4086 at 12 Volt Outlet for a single-chassis approach to multi-channel amplification and DSP tuning. Want to learn more about JBL? Explore our JBL brand profile.
