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<blockquote data-quote="stang2004" data-source="post: 4890970" data-attributes="member: 599037"><p>cliffs at bottom</p><p></p><p>Just finished installing my new system yesterday it sounds great and I'm very happy with it, however there is one thing I have noticed.</p><p></p><p>Background Info - Mustang GT with Mach 460 audio system.</p><p></p><p>My original setup was a Mach 460 system with a Sub added to the rear. It was wired up with a Line output converter on the rear amp data converters Setup was as follows.</p><p></p><p>5 gauge wire throughout</p><p></p><p>700 Watt amp feeding a cheap brand sub.</p><p></p><p>(The sound was not great but it pounded pretty hard)</p><p></p><p>I now ripped out the complete mach 460 system and replaced it with</p><p></p><p>Kenwood Excelon X991 headunit</p><p></p><p>700 Watt amp feeding the sub</p><p></p><p>MB Quart Components in custom kick panels being fed by a 400 watt amp.</p><p></p><p>Wiring - 5 gauge wire from battery feeding to a distribution block, splitting two 9 gauge wires to the amps. Ground wire size remained the same.</p><p></p><p>The sound is great however my sub output is SEVERLY lacking now and I'm not sure why. With the old setup, i could not turn the bass up on the headunit at all, and the gain was set very low. Even with these settings when the system was cranked the sub would be on the verge of letting go. The rear view mirror would shake, side mirrors would shake, etc.</p><p></p><p>WIth the new setup there is hardly any bass output. When I first turned it on I did not think I had hooked up the sub! I fiddled with the settings and was able to get some <strong>mediocre</strong> bass. But I had to turn up the Gain on the amp all the way, and set the subwoofer volume on the headunit to the max. Even with this the sub does not start pounding untill it hits at least 1/2 max volume. If I move the Subwoofer volume down (from the headunit) the bass is almost non existant. With the volume at 50-75% then the sub will start pounding where it used to. But the volume of the speakers are ear splitting. I used to get more bass response at lower volumes with the old setup. Now for me to get bass response everything has to be cranked to the max.</p><p></p><p>I figured I would get alot better bass output from the sub being that it is now wired directly to the headunit. So i'm kind of at a loss. Could it be that the 9awg wire feeding the amp now just cant supply the power? Is it that now with the extra amp there just is not enough power being generated to support that volume?</p><p></p><p>I'm ordering a 0/1 gauge wire setup plus a capacitor because it couldnt hurt. Just looking for any input as to why the bass response is so much less in a setup that should produce much more.</p><p></p><p>Other notes -</p><p></p><p>SVC 4 Ohm sub</p><p></p><p>Amp is running bridged</p><p></p><p>The Amp does not have a crossover setting (Cheap pioneer).</p><p></p><p>Settings are</p><p></p><p>Gain - set to max</p><p></p><p>LPF - set on</p><p></p><p>Bass boost -set to maximum level</p><p></p><p>Thanks for any help</p><p></p><p>-Frank</p><p></p><p>Cliffs - Old setup hit decently hard with just all stock setup with only a Sub added via line output converter.</p><p></p><p>Replaced entire system and now bass is barely existant from sub. Only thing changed was addition of another amplifier, and stepping down a awg or two wire due to distribution block.</p><p></p><p>Am I missing a setting on the X991 to effect bass (Already have sub at +15, gain at max, etc) Or is it totally due to the fact of the awg wire being smaller and the extra amp drawing power.</p></blockquote><p></p>
[QUOTE="stang2004, post: 4890970, member: 599037"] cliffs at bottom Just finished installing my new system yesterday it sounds great and I'm very happy with it, however there is one thing I have noticed. Background Info - Mustang GT with Mach 460 audio system. My original setup was a Mach 460 system with a Sub added to the rear. It was wired up with a Line output converter on the rear amp data converters Setup was as follows. 5 gauge wire throughout 700 Watt amp feeding a cheap brand sub. (The sound was not great but it pounded pretty hard) I now ripped out the complete mach 460 system and replaced it with Kenwood Excelon X991 headunit 700 Watt amp feeding the sub MB Quart Components in custom kick panels being fed by a 400 watt amp. Wiring - 5 gauge wire from battery feeding to a distribution block, splitting two 9 gauge wires to the amps. Ground wire size remained the same. The sound is great however my sub output is SEVERLY lacking now and I'm not sure why. With the old setup, i could not turn the bass up on the headunit at all, and the gain was set very low. Even with these settings when the system was cranked the sub would be on the verge of letting go. The rear view mirror would shake, side mirrors would shake, etc. WIth the new setup there is hardly any bass output. When I first turned it on I did not think I had hooked up the sub! I fiddled with the settings and was able to get some [B]mediocre[/B] bass. But I had to turn up the Gain on the amp all the way, and set the subwoofer volume on the headunit to the max. Even with this the sub does not start pounding untill it hits at least 1/2 max volume. If I move the Subwoofer volume down (from the headunit) the bass is almost non existant. With the volume at 50-75% then the sub will start pounding where it used to. But the volume of the speakers are ear splitting. I used to get more bass response at lower volumes with the old setup. Now for me to get bass response everything has to be cranked to the max. I figured I would get alot better bass output from the sub being that it is now wired directly to the headunit. So i'm kind of at a loss. Could it be that the 9awg wire feeding the amp now just cant supply the power? Is it that now with the extra amp there just is not enough power being generated to support that volume? I'm ordering a 0/1 gauge wire setup plus a capacitor because it couldnt hurt. Just looking for any input as to why the bass response is so much less in a setup that should produce much more. Other notes - SVC 4 Ohm sub Amp is running bridged The Amp does not have a crossover setting (Cheap pioneer). Settings are Gain - set to max LPF - set on Bass boost -set to maximum level Thanks for any help -Frank Cliffs - Old setup hit decently hard with just all stock setup with only a Sub added via line output converter. Replaced entire system and now bass is barely existant from sub. Only thing changed was addition of another amplifier, and stepping down a awg or two wire due to distribution block. Am I missing a setting on the X991 to effect bass (Already have sub at +15, gain at max, etc) Or is it totally due to the fact of the awg wire being smaller and the extra amp drawing power. [/QUOTE]
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