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JL Audio® System Tuning DSP

Model #: TWK88
JL Audio
At a Glance
JL Audio® System Tuning DSP with control by TüN software and 8 channel analog/digital inputs
Available in Store Only
$549.99Save $NaN
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Get to know this product.

System Tuning DSP with 8-ch. Stereo RCA Inputs / 2 Digital (Optical and Coaxial) Inputs / 8-ch. Stereo RCA Outputs / 1 Digital Optical Output

The TwK™ 88 is a state-of-the-art digital signal processor engineered to deliver world-class system tuning capabilities in an easy-to-use format. Equipped with an advanced 24-bit DSP processor, the TwK™ 88 includes flexible input/output options, 80 total bands of equalization and powerful mixing tools. The included DRC-200 Digital Remote Controller offers dual level controls, toggles up to six presets, and has an LED indicator.

Control the TwK™ 88’s entire feature set by connecting it to your PC via USB, using the companion TüN™ 2.0 Software interface.

  • Flexible input design with 8 differential-balanced, line-level analog inputs (RCA), accepting line-level signals up to 7.1V (RMS)
  • Separate optical (Toslink) and coaxial digital inputs for connection to digital S/PDIF sources.
  • Flexible input mixer allows input channels to be combined with full control over each input’s level and polarity.
  • 8 banks of 10-band graphic or parametric equalizers with configurable EQ assignment
  • Powerful crossover section with fully variable, high-pass and low-pass filters, crossover slopes are selectable from 6 dB/octave to 48 dB/octave (in 6 dB/octave increments)
  • Configurable polarity and delay settings, with separate entries for speaker distance plus offset control; fully linkable with other channels, in any combination, for adjustment
  • Precise output level controls, adjustable in 0.5 or 0.1 dB increments, fully linkable with other channels, in any combination
  • 8 analog, line-level RCA output jacks (4V RMS)
  • Optical (Toslink) output jack provides a pass-through digital audio (S/PDIF) signal from any pair of input channels, with no signal processing applied.
  • Remote turn-on output (+12VDC) for activating aftermarket audio equipment.
  • JLid™ Port allows connection of the included DRC-200 Digital Remote Controller to add dual configurable level controls, preset selection and LED status reporting from the driver's seat.


  • Power Supply Type: Regulated DC-DC SMPS
  • Input Operating Voltage: 10 - 16 VDC
  • Standby Current Draw: <1.5 mA
  • Operating Current Draw: 0.7 A
  • Recommended Fuse Value: 1 A
  • Input Channels: Eight
  • Input Type: Line-level, Differential-Balanced
  • Input Voltage Range: 250 mV - 7.1 V RMS
  • Minimum Input Voltage: 10 mV RMS
  • Input Level Setting: Eleven discrete selections from 250 mV - 7.1V RMS
  • Output Channels: Eight
  • Analog Output: Unbalanced, stereo RCA jacks
  • Digital Output: Optical (Toslink) output (S/PDIF)
  • Output Impedance: 450 Ω
  • S/N Ratio: 98 dB (A-Weighted, referred to 4V RMS Output)
  • THD+N: @ Rated Output: 0.02% (20 Hz - 20 kHz)


  • Analog - Analog: 5.425 mS
  • Analog - Optical: 5.470 mS
  • Optical - Optical: 4.860 mS
  • Optical - Analog: 4.805 mS

Signal Processing

  • Audio Resolution: 24 bit / 48 kHz
  • Number of EQ Bands: 10 x 8 Channels
  • Remote Level Control: Included (DRC-200)
  • Remote Level Functions: Master Volume Control + Trim; Master Volume Control + Fader; Zone Control, LED Status Reporting
Useful Documents


USB Port:Yes
Analog Audio(RCA) Input:4
Analog Audio(RCA) Output:4

Misc. Specs

Product Weight (lbs.)2.58
Depth (in.)6.14
Width (in.)4.29
Height (in.)1.85
Manufacturer Warranty2 Year
WarningProposition 65 Warning for California Residents