olds97_lss 10+ year member
Junior Member
Sorry for the long post, but would really appreciate opinions and guidance.
My current setup:
Kenwood KDC-BT945U (bought off ebay as mfr refurb)
- HU amp off
Kenwood 4 channel amp KAC-9452 (70w rms x 4 @ 4 ohms)
Polk Audio DB571 front (100W rms max, 4ohm)
Polk Audio DB691 rear (100W rms max, 4ohm)
Factory speaker/power wire.
Before buying the amp:
Setup/install went without issue. Have installed 10+ HU's over the years. Blue-tooth works great, USB jump drive works great, sound quality is phenomenal.
Running at 70mph with the windows down requires a decent amount of volume to get sound worth listening too. I listen to a lot of metal (ozzy, metallica, puddle of mud...), so the louder the better. After about 10 minutes or so of running at 25/35 (USB as source), the volume drops dramatically and crackles. I turned it down for a minute, rolled up the windows, turned it back up to 22 and it was all good. Bumped it up to 25 again and it dropped the volume again within a few minutes.
After buying the amp:
Figured I needed an amp to push the polks. In comes the KAC-8452 (70w rms x 4). Have best buy install it with a kicker AWG 4 power wire and twisted pair RCA's along with a 3rd set of RCA's in case I wanted to throw in a sub later. I haven't run an amp since I was a teen (15 years ago or so), so I figured I'd let someone else deal with crawling around and installing stuff. Did a great job with the install, also ran new heavy wire to the front doors and rear deck for the speakers.
Readjusted all the EQ settings and whatnot on the HU, shut off the internal amp, turned the low end boost off, adjusted the low end of the EQ to sound good when loud so I could bump it up when I have the volume down and windows up. Pounds hard, sounds awesome after some further tweaking of the EQ.
Rolling along this morning (first hour long commute after install of amp), volume at 25, sounds great, hitting hard... volume drops out...
So... Love the features, used to the features (playlists are a must), have run kenwood HU's for years... contemplating setting it on fire.
My last HU was a KDC-X693 running a cheaper set of pioneer 5x8/6x9 speakers. I could consistently run it about 3 points from max for extended periods of time without issue. I figured I'd bump up the quality and feature list a bit so I could have a blue-tooth speakerphone (which works great). Only to end up with something that can't even power it's low level outs? What's going on here? Did I get a dud? Is there a setting I'm missing?
I upped the gain on the amp to about 90% on both front/rear channels (was at about 40%) and the HU runs at about 22-24/35 and it's loud and sounds great. But I can't shake the feeling that I'm on the verge of something melting down in the dash of my car.
I know the volume issue was discussed int he past, but they were pretty old threads and I didn't see any make mention of my HU directly.
Was looking at a KDC-X995 and just consider my 3 week old 945 a lost cause... but afraid I'll have the same issue since the "kenwood" logo is still on it... lol. I just really like the playlist feature and the fact that I have software that builds playlists very easily out of my folder structured music library.
Do I just cut my losses and look for a new head unit that does what I want or what do I do? Is there something I'm overlooking?
My current setup:
Kenwood KDC-BT945U (bought off ebay as mfr refurb)
- HU amp off
Kenwood 4 channel amp KAC-9452 (70w rms x 4 @ 4 ohms)
Polk Audio DB571 front (100W rms max, 4ohm)
Polk Audio DB691 rear (100W rms max, 4ohm)
Factory speaker/power wire.
Before buying the amp:
Setup/install went without issue. Have installed 10+ HU's over the years. Blue-tooth works great, USB jump drive works great, sound quality is phenomenal.
Running at 70mph with the windows down requires a decent amount of volume to get sound worth listening too. I listen to a lot of metal (ozzy, metallica, puddle of mud...), so the louder the better. After about 10 minutes or so of running at 25/35 (USB as source), the volume drops dramatically and crackles. I turned it down for a minute, rolled up the windows, turned it back up to 22 and it was all good. Bumped it up to 25 again and it dropped the volume again within a few minutes.
After buying the amp:
Figured I needed an amp to push the polks. In comes the KAC-8452 (70w rms x 4). Have best buy install it with a kicker AWG 4 power wire and twisted pair RCA's along with a 3rd set of RCA's in case I wanted to throw in a sub later. I haven't run an amp since I was a teen (15 years ago or so), so I figured I'd let someone else deal with crawling around and installing stuff. Did a great job with the install, also ran new heavy wire to the front doors and rear deck for the speakers.
Readjusted all the EQ settings and whatnot on the HU, shut off the internal amp, turned the low end boost off, adjusted the low end of the EQ to sound good when loud so I could bump it up when I have the volume down and windows up. Pounds hard, sounds awesome after some further tweaking of the EQ.
Rolling along this morning (first hour long commute after install of amp), volume at 25, sounds great, hitting hard... volume drops out...
So... Love the features, used to the features (playlists are a must), have run kenwood HU's for years... contemplating setting it on fire.
My last HU was a KDC-X693 running a cheaper set of pioneer 5x8/6x9 speakers. I could consistently run it about 3 points from max for extended periods of time without issue. I figured I'd bump up the quality and feature list a bit so I could have a blue-tooth speakerphone (which works great). Only to end up with something that can't even power it's low level outs? What's going on here? Did I get a dud? Is there a setting I'm missing?
I upped the gain on the amp to about 90% on both front/rear channels (was at about 40%) and the HU runs at about 22-24/35 and it's loud and sounds great. But I can't shake the feeling that I'm on the verge of something melting down in the dash of my car.
I know the volume issue was discussed int he past, but they were pretty old threads and I didn't see any make mention of my HU directly.
Was looking at a KDC-X995 and just consider my 3 week old 945 a lost cause... but afraid I'll have the same issue since the "kenwood" logo is still on it... lol. I just really like the playlist feature and the fact that I have software that builds playlists very easily out of my folder structured music library.
Do I just cut my losses and look for a new head unit that does what I want or what do I do? Is there something I'm overlooking?