
4-Channel Lossless Audio Line Output Converter with Auto Turn-On And Speaker Emulator









4-Channel Lossless Audio Line Output Converter with Auto Turn-On And Speaker Emulator
Sale $127.46 / EACH
Reg.$149.95
15% OFF FOR MOVING SALE!
-
Key Features
- Line Output Converter
- 4 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
-
Technical Data - Manual
DOWNLOAD THE USER MANUAL
SPECS
SKU
QHL4
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
15Hz-20KHz
Total Harmonic Distortion
0.07% (1KHz)
Input Impedance
6 ohms (Speaker Emulator)
Output Impedance
600 ohms
Features
Speaker Level Input
Yes, 4Ch
Selectable Auto Turn-On
Yes, Audio (3v) / DC (2.5v)
Remote Output
Yes, 12v DC 100mA max
Amplifier Outputs
4 Channels RCA (FL/FR/RL/RR)
Level Matching Controls
Yes, (Low Power / High Power)
Led Indicators
Yes, ON led indicator
Housing Material / Color
Aluminum / Black
Wiring Connector
Single Molex
Noise Rejection
Transformers with Galvanic Insulation
Step-Down Method
High Quality Lossless Transformers
Measurement
Overall Length
3.9" / 99mm
Overall Wide
2.4" / 61mm
Overall Height
1.1" / 28mm
Gross Single Unit Weight
0.55 Oz (0.25kg)
-
Product Overview
Product Overview
DS18 QHL4 Upgrade your vehicle's sound system with DS18’s QHL4. This compact line output converter is your key to unlocking superior audio quality and seamless integration.
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.
Disclaimer: Ensure your vehicle's electrical system operates at 12V DC with a negative ground.




Hey {Recipient's Name},
{Your Name} wanted to help you out with some gift ideas ;)
Here's a super cool gift.
Cheers,
DS18

4-Channel Lossless Audio Line Output Converter with Auto Turn-On And Speaker Emulator
Default Title
Related products
- Line Output Converter
- 4 Channel
- Speaker Emulator
- Remote Out with Signal Sensing
- Power LED
- Compact Design
- Line Output Converter
- 4 Channel
- Speaker Emulator
- Remote Out with Signal Sensing
- Power LED
- Compact Design
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 2 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
- Line Output Converter
- 2 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 4 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
- Line Output Converter
- 4 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 2 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
- Line Output Converter
- 2 Channel
- Lossless Audio ~ Double Step Down Ratio
- Compact ~ Level Matching Controls(High/Low)
- Selectable Auto Turn On ~ Remote Out
- Noise Rejection ~ Speaker Emulator
- Line Output Converterr
- 2 Channel
- Speaker Emulator
- Remote Output with Signal Sensing
- Power LED
- Compact Design
- Line Output Converterr
- 2 Channel
- Speaker Emulator
- Remote Output with Signal Sensing
- Power LED
- Compact Design
- Line Output Converter
- 6 Channel
- 6 X Inputs
- 6 X Outputs
- Channel Summed Indicators
- Bass Knob Control
- Line Output Converter
- 6 Channel
- 6 X Inputs
- 6 X Outputs
- Channel Summed Indicators
- Bass Knob Control
- Line Output Converter
- 5 Channel
- Subwoofer Output
- Remote Out with Signal Sensing
- Power LED
- Compact Design
- Line Output Converter
- 5 Channel
- Subwoofer Output
- Remote Out with Signal Sensing
- Power LED
- Compact Design
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 2 Channel
- Level Matching Controls(FL,FR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Channel:
Power Rating:
Channel:
:
Color:
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
- Line Output Converter
- 4 Channel
- Level Matching Controls(FL,FR,RL,RR)
- Remote Out ~ Auto Turn On
- Speaker Emulator ~ Compact
- Step-Down Method: Electronic / SMC
Let customers speak for us
from 3628 reviewsFits well!!! Looks good!!! Priced well!!! Performs as expected. The only thing I would change applies to all the DS18 products that have RGB Chasing LEDs in them. Change the wire coloring from Red (12V+) Black (12v-) White (Data) to either Red Black Green , Red Black Yellow, or Red White Green. Having the data wire in white can make it confusing when adding to an LED setup. It would be more inline with the normal practices.

Overall great sound quality and improved my sounds tremendously from a voice perspective it elevated it to a differnt level will definitely recommend to others!

Love the way it works and easy to install

Delivery was fast, and showed up on time. Very powerful amp, and so far the best amp I have ever had. Make sure you have the proper electrical system to power this monster. Haven't had any problems with it so far. Definitely will be buying 2 of the hool-x15.1 dhe
high excursion subwoofer to try them out as well

I replaced a skar 100.4 with this one and my speakers came alive, love this amp and also very small

These speakers are beautifully made and sound awesome! Very loud and clear and the LED lighting is the perfect touch.

Popped right into my factory speaker slot! Great quality gives you that organized clean look your heart desires 🤣

I have ordered a few things from DS18. I have their equipment in my motorcycle and I am enjoying it. I had an issue with one speaker that didn’t work but I was able to get online and get a replacement sent under warranty. Fast shipping.

Very simple to install and everything is self explanatory

When it's comes to quality and clean music ds18 is the way to go

Good speakers sound clean, my cousin has some on his truck, and I could hear them pretty far, it was only like at 30 %, and was nothing I'd say a 5-star review, make them a little bit louder, and they will sound good

I love them. Great build quality and sound.

I am glad I picked these for my soundbar. They don't light up but that's ok. They sound awesome!!!

Fits nicely under the front passenger seat excellent sound for the price.

Sound is crystal clear I came from a power bass 10 which the Bluetooth went out and the sound quilling of the da 18 is the same or even alittle better then the power bass.
