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DS18 QHL4

4-Channel Lossless Line Output Converter with Auto Turn-on and Speaker Emulator

DS18
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• 4-Channel lossless audio line output converter
• Lossless audio, double step down ratio
• Compact size with level matching controls (High/Low)
• Selectable auto turn-on remote out
• Features noise rejection and speaker emulator

Learn more about the qhl4
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List price $179.99
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-17%

$149.95

 with warranty
Starting at $14/mo or 4 payments of $38 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

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Description


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Authorized dealer


DS18 QHL4

Engineered for those who demand nothing but the best, this 4-channel line output converter delivers pure, unfiltered sound with seamless integration into any vehicle system, whether OEM or aftermarket. Advanced transformers and cutting-edge noise rejection technology ensure that your audio remains untouched by interference.

Installation is a breeze thanks to its compact, rugged design, complete with a detachable harness and straightforward labeling. Versatility is at its core, effortlessly handling both high-power (up to 100W) and low-power sources, making it the perfect companion for any setup. With built-in speaker simulation, the QHL4 guarantees flawless integration by ensuring your OEM source detects the original speaker load.

The QHL4 doesn’t just stop at superior sound—it’s smart too. The intelligent +12V remote output automatically triggers your amplifiers, with LED indicators for easy monitoring. And with its durable aluminum housing and tear-proof wiring connector, you can trust it’s built to last.


Product Features:

  • 4-Channel lossless audio line output converter
  • Selectable audio turn-on (3V) / DC (2.5V)
  • Remote output with 12v DC 100mA max
  • 4-Channel amplifier RCA (FL/FR/RL/RR)
  • Level matching controls (Low Power / High Power)
  • Built-in LED light indicators
  • Single Molex wiring connector
  • Noise rejector transformers with galvanic insulation
  • High-quality lossless step-down transformers
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Product Specifications:

  • Maximum Speaker Level Input: 50W (Low Power) / 100W (High Power)
  • Maximum Preamp Output: 2.5V
  • Nominal Conversion Ratio: 4:1 (Low Power) / 6.5:1 (High Power)
  • Frequency Response: 15 Hz - 20000 Hz
  • Total Harmonic Distortion: 0.07% (1000 Hz)
  • Input Impedance: 6 ohms (Speaker Emulator)
  • Output Impedance: 600 ohms
  • Dimensions: 3.9" W x 2.4" D x 1.1" H

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Specifications & Details


Line Out Convertor Specifications
Number of Channels
4-Channel
Frequency Response
15 - 20000 Hz
Speaker Level Input Wattage/Voltage
100 watts
Preamp Output Voltage
2.5 volts
Line-Out Converter Features
Turn on Mode
Remote Wire
Ground Isolation Options
Ground
Remote Turn On Output
Yes
Remote bass/level controller
No
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

QHL4

Weight:

0.40lbs

Internal SKU:

qhl4

Internal Product ID:

216052

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.