Taxed1 Posted February 16, 2023 Report Share Posted February 16, 2023 (edited) Has anyone successfully set up this amp with a DD1+? I just finished running my new RCAs & wires for my mids & highs. The amp came in today. Wired it all up. My Kenwood head unit plays up to 34 out of 35 clean. Checked using my DD1+. This is not my first rodeo with the great DD1+, I have used it to set up Sundown & Skar amps before. I first checked my RCAs like I always do, clean up to volume 34, 2.1 volts. Plugged the RCAs into the DS440, gain was already set down to the lowest. Slowly turned the knob & immediate distortion light on the DD1+. OK?? Checked the other side of the amp, same shit. This was using track 2, 1khz, 0dB. I checked all 4 speaker outputs & same result, distortion on every channel with little to no gain. So after a few attempts I said screw it & hit the "read" button. I then changed to track 4. It was around 11dB gain overlap. I tried turning down the knob but I am so close to no gain adjustment, the lowest I can go is 7dB overlap then it's virtually off. I decided that I may have to bust out my O-Scope to see what is up. I did hook up the speakers & they sound amazing with the DD1+ set to 12dB gain overlap. I am lost with the minimal turn of the gain & immediate distortion light. I used this same DD1+ to set up my bass amp a few months ago with no issues except when I sparked it on my amp, you can check my profile & find that story. Any advice here? Edited February 16, 2023 by Taxed1 Quote Link to comment Share on other sites More sharing options...
Taxed1 Posted June 24 Author Report Share Posted June 24 (edited) Bringing this old question back to life. I found the answer was that the DS440/4 does not like any RCA voltage over 1.8 volts. It will immediately distort in the preamp section in the amp. I ended up just lowering the RCA voltage using the crossover section of my Kenwood head unit to -6 and I am able to set the amp up normal with the DD1 with a -5 tone. My Kenwood has 3 volts on the RCA. Edited June 24 by Taxed1 Quote Link to comment Share on other sites More sharing options...
Joe X Posted June 25 Report Share Posted June 25 DS440X4 has an input sensitivity 250mV to 4v depending on how the gain knob is set, don't know if you tried to change that or not. Taramps knobs are known not to work as specified anyways. Quote Link to comment Share on other sites More sharing options...
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