crawlinss Posted May 17, 2007 Report Share Posted May 17, 2007 i just put one infinity reference speaker in the door in place of the bose speaker, then i got rained out. so im messing around going left to right front to back, and i notice that thru the infinity speaker the sound quality is horrible....like when you get a crappy download of a song, cymbals sound like breaking glass and so forth....what ohm output comes through the bose amp, does anyone know??? why would this happen? ive been out of the custom audio loop for about 3 years which in this game is a lifetime....any help? Quote Link to comment Share on other sites More sharing options...
NoLegs Posted May 17, 2007 Report Share Posted May 17, 2007 Bose uses 2 ohm speakers. Your infinity's may require more power than the Bose amp outputs @ 4 ohms to sound decent. Then again, I don't really like inifinity speakers, and it is possible that what you are hearing is just what an inifinity speaker sounds like... Quote Link to comment Share on other sites More sharing options...
mgawlik1 Posted May 17, 2007 Report Share Posted May 17, 2007 The Bose system is all made to work together. It could very well be an issue with impedance. The new speakers would sound so much better if you upgrade the amp to. Quote Link to comment Share on other sites More sharing options...
SS Silv Posted May 18, 2007 Report Share Posted May 18, 2007 Hmmm, I hooked up some new JBL components to the bose amp and they sound great. What kind of headunit do you have? Quote Link to comment Share on other sites More sharing options...
Chevrolet SS Posted May 18, 2007 Report Share Posted May 18, 2007 I still dont really understand why everyone chages there speakers on a bose system... but it shouldent sound HORRIBLE, did you use speaker harnesses? If not are you SURE you have EVERYTHING in phase? Quote Link to comment Share on other sites More sharing options...
NoLegs Posted May 19, 2007 Report Share Posted May 19, 2007 I still dont really understand why everyone chages there speakers on a bose system... Once you hear someting that actually sounds good, the Bose system loses it's appeal pretty quick. The whole Bose system sounds like the music is being played through a paper towel and those tweeters are a joke. Quote Link to comment Share on other sites More sharing options...
Bluess24 Posted May 19, 2007 Report Share Posted May 19, 2007 The best thing you can do is by pass the factory amp. This way you don,t have to worry about all the facory harness BS and you will have better out put with an after maket amp. Quote Link to comment Share on other sites More sharing options...
waynefi Posted May 19, 2007 Report Share Posted May 19, 2007 I still dont really understand why everyone chages there speakers on a bose system... but it shouldent sound HORRIBLE, did you use speaker harnesses? If not are you SURE you have EVERYTHING in phase? Myself included, I always thought it was a nice upgrade, factory installed, from the standard crap. Especially if leasing and only having the vehicle a few years. It all depends, and like all things audio, is somewhat subjective to a persons needs. Myself, I listen seriously in the home, but find the Bose in my vehicle just fine. Quote Link to comment Share on other sites More sharing options...
Chevrolet SS Posted May 21, 2007 Report Share Posted May 21, 2007 Once you hear someting that actually sounds good, the Bose system loses it's appeal pretty quick. The whole Bose system sounds like the music is being played through a paper towel and those tweeters are a joke. no doubt... but upgrading the speakers in a bose system dosent usually seem to help anything from my experience it makes it worse and is only worth doing if your current speakers are blown. espically with bose Home theator stuff change one thing and everythings sounds like chrap. So change it all or dont change anything IMO BTW 800watts RMS to the front stage sounds GREAT in these trucks Quote Link to comment Share on other sites More sharing options...
crawlinss Posted May 25, 2007 Author Report Share Posted May 25, 2007 well i dont know what you mean by everything "in phase", but i do know i have the polarity correct. i did not use harness, they are soldered/shrink wrapped the way ive always done installs, which IMO is better than plugs. anyway, i ohmed them out and yes, the bose are 2 ohm the infinitys are 4 ohms, which explains a lot. im probably going to put the stock speaker back in there as the earthquake speakers i have are 4 ohm as well. heres another situation im having... so i got my new subthump box (which for the price is very nice), i got the shallow one with the amp rack, which is essentially 2 truck boxes with a board attaching them, but contoured to the floor etc etc. ive got a volfenhag 7170 amp with 2 sets of rca's in, so i ran 2 sets of rca's from the pac24 unit (stock head unit BTW), one into the "front" one into the "rear" and started tuning. ive got 2 big ass jl audio 10"s with dual voice coils, theyre older but in very good conditon. anyway, so that being said, i started tuning and i cant get them to sound good. i think part of the problem is that the amp gives me between 4-8 ohms tolerance for subs, and when i have it wired for dual voice coils that puts me at like 12 ohms. so i disconnected the one side and just wired it pos/neg, which should put the sub at 6 ohms, and noticed no change in sound. i cant get any real bottom end out of this system, it sounds SORT of good, but not how it should, this amp is 400x2 bridged....that should be more than plenty to shake my truck apart but its got NO low end. help? Quote Link to comment Share on other sites More sharing options...
perk03z06 Posted May 25, 2007 Report Share Posted May 25, 2007 i think part of the problem is that the amp gives me between 4-8 ohms tolerance for subs, and when i have it wired for dual voice coils that puts me at like 12 ohms. so i disconnected the one side and just wired it pos/neg, which should put the sub at 6 ohms, and noticed no change in sound. i cant get any real bottom end out of this system, it sounds SORT of good, but not how it should, this amp is 400x2 bridged....that should be more than plenty to shake my truck apart but its got NO low end. help? When you're wired for 4-8 ohms for the subs ... you should get 4, or 2 or 1 ohms resistance, if you wired correctly. If your subs rated 4-8 (dual voice), then wire your subs 2-4. For the most part, wiring a single dual voice coil sub is like wiring 2 subs in one. 2 voice coils = twice the resistance, so a 4 ohm circuit should really measure 1 ohm of resistance. (1 ohm is twice as much as 4. 4x2 = 1 ... weird math, I know. But, google ohms law and it'll make sense, or check it out here) Quote Link to comment Share on other sites More sharing options...
torqueaholic Posted May 25, 2007 Report Share Posted May 25, 2007 (edited) The Bose system is equalized to compensate for the suckiness of the Bose speakers. As soon as you hook up good speakers, they will end up being equalized with the wrong corrections!!! This is why JL Audio came out with this recently: http://mobile.jlaudio.com/products_cleansw....php?page_id=79 Impedence (ohm) mismatches will account for loudness insuffiencies, which is a different issue than improper equalization. Edited May 25, 2007 by torqueaholic (see edit history) Quote Link to comment Share on other sites More sharing options...
TxCrew Posted May 25, 2007 Report Share Posted May 25, 2007 make sure your wires arent crossed. its and easily made mistake. Quote Link to comment Share on other sites More sharing options...
crawlinss Posted May 25, 2007 Author Report Share Posted May 25, 2007 When you're wired for 4-8 ohms for the subs ... you should get 4, or 2 or 1 ohms resistance, if you wired correctly. If your subs rated 4-8 (dual voice), then wire your subs 2-4. For the most part, wiring a single dual voice coil sub is like wiring 2 subs in one. 2 voice coils = twice the resistance, so a 4 ohm circuit should really measure 1 ohm of resistance. (1 ohm is twice as much as 4. 4x2 = 1 ... weird math, I know. But, google ohms law and it'll make sense, or check it out here) i think that might be part of my problem ive got something wired wrong. im pretty familiar with ohms law, however i really never deal with the wattage part of the equation, at least in an audio sense. i dont understand how you say 1 ohm of resistance is twice as much as 4?? if it takes one amp to push one ohm of resistance per ohms law, how could one ohm be twice as much as four? im not being a dick, im just seriously confused with this system, ive never had this much trouble. the way you say to have the subs wired is how?? really quick heres what ive got and how its wired, ive got a 4 channel amp. ive got it set up so its 2 channels bridged, positive on channel one negative on channel two, positive on three, negative on four....thats set up correctly for bridged out put, right? either that or it could be +1 -3 +2 -4, im not sure but as far as the amp is concerned i have it set up per their instructions. now on the subs, ive got a set of +/- on either side of the sub, with a jumper across from one positive to the other negative, then out of the amp ive got a positive to the remaining positive, and a negative to the remaining negative. is this correct? this is confusing the shit out of me, i could put up pix if that might help. ALSO..........what is the benefit of dvc??? ALSO......... should i stuff my box?? LOL that sounds diirrrrty Quote Link to comment Share on other sites More sharing options...
perk03z06 Posted May 26, 2007 Report Share Posted May 26, 2007 i think that might be part of my problem ive got something wired wrong. im pretty familiar with ohms law, however i really never deal with the wattage part of the equation, at least in an audio sense. i dont understand how you say 1 ohm of resistance is twice as much as 4?? if it takes one amp to push one ohm of resistance per ohms law, how could one ohm be twice as much as four? im not being a dick, im just seriously confused with this system, ive never had this much trouble. the way you say to have the subs wired is how?? really quick heres what ive got and how its wired, ive got a 4 channel amp. ive got it set up so its 2 channels bridged, positive on channel one negative on channel two, positive on three, negative on four....thats set up correctly for bridged out put, right? either that or it could be +1 -3 +2 -4, im not sure but as far as the amp is concerned i have it set up per their instructions. now on the subs, ive got a set of +/- on either side of the sub, with a jumper across from one positive to the other negative, then out of the amp ive got a positive to the remaining positive, and a negative to the remaining negative. is this correct? this is confusing the shit out of me, i could put up pix if that might help. ALSO..........what is the benefit of dvc??? ALSO......... should i stuff my box?? LOL that sounds diirrrrty Can you post a schematic? Quote Link to comment Share on other sites More sharing options...
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