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**Aftermarket Amp/Subwoofer Help using Technic's harness
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11-24-2010, 02:37 PM | #1 |
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**Aftermarket Amp/Subwoofer Help using Technic's harness
Disclaimer:
1. I am a total idiot when it comes to audio, so please be easy. 2. I am in no way claiming that Technic's harness is causing my problem Background... I have a subwoofer setup that I've used in two previous cars that I've owned. It consists of a 400w Kenwood bridgeable amp and two 12" Pioneer IMPP's. The setup is from the late 90's/early 2000's, so I know there are better products out there. Regardless, I know what it has sounded like in other cars using the standard amp power kit/RCA's hooked up to an aftermarket deck. Enter my e90 with L7... I purchased one of Technic's harness and soldered a small fuse holder to the remote wire in between the harness and the remote. I am running some RCA's from the LOC on the harness to my amp, and power and ground from my battery to the amp. The amp is bridged as it's been in previous cars. My problem... Basically, there seems to be too much power or too strong of a signal running to my aftermarket amp. The gain on my aftermarket amp has been turned down all the way, and I still get extreme popping with any oem deck settings Currently, I have the following settings: BASS = -6. The 100hz, 200hz, and 500hz EQ settings are all in the negative as well. Technic was nice enough to send me another harness to ensure that the LOC was not defective. Unfortunately, I found the same results with the newer harness. Has anyone else experienced this or something similar? What could cause this? What are my options? It kills me to invest in a new amp or subs knowing that these sounded fine in other cars. The problem isn't with the individual components, but rather the components when used together. Please Help! |
11-24-2010, 02:42 PM | #2 |
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do you get poping irrespective of volume?
if you are say 5 clicks from minimum on the head unit does it still sound bad? |
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11-24-2010, 03:27 PM | #4 |
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Well, there are three components that could be causing the issue:
1. OEM head unit/amp 2. LOC 3. Kenwood amp Cross out the OEM HU/amp, assuming the system works fine without the harness hooked up. Cross out the LOC since you have tried two separate units Left is the amp. Either the input is overloaded, or the amp is defective. If I were a betting man, I would put my money on the Kenwood. If I were you I would just try another amp. They are so inexpensive these days and the technology just keeps getting better and better. No sense using old outdated crap when there is something much better out there for very little money. Some online stores will even let you "try" the goods for 30 days risk-free. Why even mess around then??? Last edited by kaigoss69; 11-24-2010 at 03:40 PM.. |
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11-24-2010, 04:23 PM | #6 |
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Is your line output converter adjustable. You will most likely need one that is I have this one http://cgi.ebay.com/LINE-OUTPUT-SPEA...item1c175a4997 works great just set the gain all the way down on the amp and adjust the line output convertor until the sound is clean.
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11-24-2010, 04:47 PM | #7 |
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Technic,
I am looking to install an after market amp a JL 300/2 for my Audiobahn sub. Everything I have read on here says to contact you about a harness for the system. What is involved in gettin a harness from you? |
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11-24-2010, 05:09 PM | #8 |
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11-24-2010, 07:57 PM | #9 |
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AMP:
Kenwood KAC-7285 150 watts x 2 @ 4 oms 300 watts x 2 @ 2 ohms 600 watts bridge @ 4 ohms <--my setup Subwoofer: 2 12" Pioneer IMPP **I can only find the model# & specs for the 10" version TS-W252C Rated at 400w |
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11-24-2010, 08:07 PM | #10 |
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i used to have those subs, good quality sub
i think your amp has a max input of 2v your LOC might be overpowering it |
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11-24-2010, 08:11 PM | #11 | |
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It could be possible that the gain potentiometer, or the whole input stage is shot. |
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11-24-2010, 09:05 PM | #13 |
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11-24-2010, 09:07 PM | #14 | |
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11-24-2010, 11:58 PM | #15 |
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I would reccomend an Alpine PDX M6 http://cgi.ebay.com/New-Alpine-PDX-M...item5d2c4045ab that is the cheapest one that has a warranty on ebay. I reccomend that seller I bought my M12 off of them. If you dont already have 4 guage wiring I would reccomend a Rockford Fosgate kit http://cgi.ebay.com/Rockford-Fosgate...item53e4b47d65 kind of expensive but it is very good quality. All this may be over your budget though.
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11-25-2010, 08:31 AM | #16 | |
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he said initially it was a Kenwood KAC-7285 then his picture says KAC-628 and then you say KAC-782 judging by this pic of a 7285 i'd guess the max volume is 2v source of pic http://cgi.ebay.com/Kenwood-KAC-7285...item20b41019d6 Last edited by kmarei; 11-25-2010 at 08:38 AM.. |
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11-25-2010, 09:11 AM | #17 | |
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My amp is infact a Kenwood KAC-7285 What do you mean by Max Volume = 2V? Is this why I get popping sounds? If I have that volume/gain turned all the way down, why would there be a problem? |
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11-25-2010, 09:14 AM | #18 | |
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Are Rockford amps any good? What kind of specs should I be interested in? mono, stereo, peak power? |
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11-25-2010, 09:55 AM | #19 |
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This one looks pretty good for the price, if you don't mind a refurb: http://outlet.crutchfield.com/p_613X...FBrand|Kenwood
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11-25-2010, 10:01 AM | #20 | |
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even if you turn it all the way down, you might still be giving it too much power. |
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11-25-2010, 11:43 AM | #21 |
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11-25-2010, 01:48 PM | #22 | |
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