| swapped the sub, sucks
- Click HERE for Original Thread
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| vqdriver |
i'm not sure how much different my test setup was with what some of the other users are doing here on the forum, but i picked up my gnx from frys last night ($25) and did a test install. listening to the stock bose sub before and comparing it to the gnx after, the gnx was certainly way below the bose in volume. almost non-extistent. i had to get out and put my head right up against it to make sure it was even working. double checked my connections and tried it again, same thing. what gives???? i only changed to subs for a baseline comparison so there shouldn't be any other variables.
given the size difference of the magnets on the two subs, i'm thinking maybe the stock amp isn't pushing enough watts to appreciably move the gnx, but others here are posting substantial gains in volume and quality without having yet installed an aftermarket amp. i witnessed neither of these. granted, the gnx was not properly mounted and sealed to the 'enclosure' but since i test both subs that way, it still should have been a direct comparison.
what gives???
btw, i'd like a buy a mounting plate from someone here. anyone got one? like to make one? |
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| mdx99 |
| try adding a low-pass filter to the polk. |
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| phins2rt |
| Keep in mind that you are replacing a 2 ohm sub with a 4 ohm sub (unless you got the DVC model) so the volume will decrease. Also, IMHO, the Bose sub will not be affected as much as the new sub by not being in the enclosure. I have always told people they will no be happy with simply switching the sub out. You really need to add an amp. YMMV. |
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| DaleB |
There is no doubt it needs an amp. Something I am still gathering the gumption to do...emerald01's selection seems cost-effective.
The filter will keep out signals that don't belong there, but some amps have selective filters bulit-in also.
I think the sub needs the amp even more than the upgraded door speakers, which are likely much more efficient than the stock Bose/Premium. So they can 'get by' with stock amplification quite well (even with the highter impedance) as long as you are not intending on having a true home theater or audiophile rig on wheels.
The greater efficiency of the Polk, will not override the lower power of the stock amp in the case of bass, which needs a lot more energy.
The stock sub provides a small amount of 'boom' but no slam. |
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