DS18 V5HL 5-Channel Line Out Converter, High-Level Speaker Signal to Low-Level RCA Adapter with Built-in Audio Sensing Technology; Produces Remote Trigger Output to Control Your Aftermarket Equipment

I purchased this product back in March of 2018 to install into my 2013 Ford Fusion with the small 4" factory head unit. It's been installed since then and this has been my experience this far: I wanted to install a four channel amp to power aftermarket speakers and a sub (front four speakers on channels 1&2 and sub bridged on channels 3&4). The product did not include instructions (why I docked ease of install a star), which would have been helpful, but not necessary. I was able to pretty much figure everything out with some common sense, a little experience and online diagrams to assist with vehicle specific wiring. People with less experience would probably benefit more from instructions, should they ever include them. So far, it sounds great and works great. It feels sturdy, I like that it has the clipping indicator lights and it's small enough to hide in my glove box. I'm glad I didn't spend over 2x for a comparable Audio Control LC unit.

This product allowed me to install a sound system in my car without messing with the touch screen head unit. 4 component speakers, 1 subwoofer, 2 amps. Just tapped into each of the four speaker interior speakers.Pros:-Best price for a 5 channel line out converter-Great product that allowed me to run 4 component speakers, 1 subwoofer through 2 amps.-Tapping into my head unit was a No Go, I was not going to touch that madness. So, I needed something to be able to run a system without touching the head unit. And this worked great for me.-Each channel is adjustable-Small size and fairly each instructionsCons:-You will need a small screw driver, similar to the ones for eye glasses.- I had to figure out how to get power to the "remote in" (so my amp will turn on and off) without using the head unit, if you have a harness for the head unit, then no need to solve this issue that I had.Overall: I love the product. Hopefully it lasts me many years. And my system sounds amazing and pretty loud as well.

This converter does indeed convert high level speaker input to low level line output. Also, it turns on automaticallyit senses input. There is also a very handy REMOTE out signal that I use to turn on my amps and EQ.However, as stated in other reviews, there is a very high-pitch whine when the engine is running. It is very low and seems to come and go. I used a power line filter but it did not stop the whine. Some reviewers stated that the whine is from the alternator but I m not so sure...the whine does not change change in pitch or volume with the engine revving.I am planning to run a separate 12 power supply to the converter as a test to determine if the car power is the source of the issue. Without the converter there is NO whine.UPDATE: The whine is from the alternator. Initially I didn't think it was but the pitch does indeed change with RPM. I tried several grounding schemes and added a 3300uf. capacitor as a filter but to no avail.I also tried a separate AC power supply (12VDC output) but the supply added hum (poor supply filtering). However, the whine did disappear. I think the issue is with the converter being in the trunk and not near the head unit and a ground loop is formed. Next step is to move it behind the head unit (a lot of work).

I have an android head unit with tons of features that I want to keep but it's only problem is that the RCA output voltage is terribly low. After adding the DS18 V5HL, the output is now a solid, clean 4V. The gain increase in my amp is awesome. Volume is much higher. I like the fact that it has built-in distortion lights. It's very effective and costs much less than the audio control counterparts

i Bought the 5 channel unit to hook up my 4 Channel AMP and my 2 channel AMP for my SUB. Worked great for about 3 months then lost a channel for my right rear speaker. 1 Month after that I lost my front left speaker so had to switch the wiring up and now have only 3 out of 5 channels working .

Not used in my vehicle.... My Denon receiver has 2 zones, main and zone 2, awesome but my basement 'man cave' area has a TV room, office and music room with each speaker system on its own amp. I could have run speaker wires all over the place and put in new speakers and barely driven by the Denon at < 1 ohm... lol, or taken my chances with a high/low. There's a bunch of passive junk out there for pennies but I wasn't too concerned about spending $50 on the right converter. After double checking with Anthony at DS18 about rigging it up to a 12V adapter and a jumper to the remote in, I plugged it in and cranked the sucker up. It has a lot of headroom! The Denon is 125 Watts per channel. Even though the V4HL is rated for 50 Watts or so, it doesn't clip even at high volume. Even when the clip lights are lighting up there's very little discernable distortion and most likely it's on the inputs of the other room's amps. I went with the 4 channel even though I am using 2 for the front channel L/R from the Denon. Since the Denon does surround sound, I wanted to have the option to combine the front channel output to the L/R. Frankly, I like 7 channel multi channel stereo more so for music anyway. The V4HL is well built, very good engineering behind it, active rather than passive, adjustable and supported. Highly recommended.

i hooked evrything up right trust maybe i need the dccs one but its 80 dollarBut this thing lights up so i dk whats wrong