Question for audio wizards
Thread Starter
Instructor
Joined: Nov 2001
Posts: 102
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From: East Brunswick, NJ
I just replaced my Bose head unit with a Kenwood, but it doesnt seem like it made any difference in loudness. When I had the same headunit in my old car I think it was much louder. Oh and is the stock amp only for the sub or for door speakers too, because I unplugged it. I also have a pair of Pioneer TS-A1648 speakers. Are they better then the bose in the front doors??? And if they are can I just plug them into original wires or do I have to re-wire??? Does anybody have pics or instructions on door speakers installation. I know I can just go and get it done, but I enjoy doing it myself, just to kill time on the weekends.
The bose speakers are probably a lot less efficient, therefore they need more power to reach the same sound level.
As for installing door speakers, just do a search in this forum. A couple of guys have posted messages with really good instructions and photos of every step in the process...
As for installing door speakers, just do a search in this forum. A couple of guys have posted messages with really good instructions and photos of every step in the process...
Pro
Joined: Feb 2002
Posts: 698
Likes: 0
hey sask, how you been? Did you check out the terminator scope pics? I thought they would be of particular interest to you...
sooslik,
There is a common electronic technique used to get the maximum out of an amplifier fed by 12volts WITHOUT going to extra measures. This utilizes a bridged push-pull stage for each speaker line with the negative side floating from chassis ground. This will give you around 12-20watts rms into 4ohms depending upon the actual alternator voltage and the efficiency of the amplifier output stage.
That being said... MOST head units will employ this same type of design and therefore, give you the same amount of power out. UNLESS the headunit is larger in size or MUCH heavier, or has an additional power amp stage, I would guess that the BOSE headunit and your Pioneer headunit put out the same power. This would be very typical. Something that would put out more power than this, would require a radical design change. It's just straight physics. The extra power can be made, but it takes work and space to do it. So unless your Pioneer head unit bragged about how much power it could produce IN TRUE RMS, then it's probably just using the standard technology which would produce the same output as the BOSE.
Since you don't hear any louder of an output, I would definitely have to say that that is the case. Actually the BOSE speakers are quite efficient. They will produce a louder SPL than any aftermarket speaker driven at teh same level. However, they suck! All of their sound is midrange without bass punch or highs...
Aftermarket speakers can be put into the doors... You do have to cut off the factory connector and recrimp two terminal lugs per speaker. Some speakers fit without much of a hassle, and others require custom spacers and the door panel to be worked on, etc. While the factory speakers are supposed to be 6-1/2 inch speakers, they are SMALL... You only have 2-1/2 inches of mounting depth before you hit the window, and the door hole cutout is only slightly bigger than 4 inches. With that in mind, choose something on the small side for 6-1/2 or try 5-1/4 inch replacements.
Good luck!
Southbound
sooslik,
There is a common electronic technique used to get the maximum out of an amplifier fed by 12volts WITHOUT going to extra measures. This utilizes a bridged push-pull stage for each speaker line with the negative side floating from chassis ground. This will give you around 12-20watts rms into 4ohms depending upon the actual alternator voltage and the efficiency of the amplifier output stage.
That being said... MOST head units will employ this same type of design and therefore, give you the same amount of power out. UNLESS the headunit is larger in size or MUCH heavier, or has an additional power amp stage, I would guess that the BOSE headunit and your Pioneer headunit put out the same power. This would be very typical. Something that would put out more power than this, would require a radical design change. It's just straight physics. The extra power can be made, but it takes work and space to do it. So unless your Pioneer head unit bragged about how much power it could produce IN TRUE RMS, then it's probably just using the standard technology which would produce the same output as the BOSE.
Since you don't hear any louder of an output, I would definitely have to say that that is the case. Actually the BOSE speakers are quite efficient. They will produce a louder SPL than any aftermarket speaker driven at teh same level. However, they suck! All of their sound is midrange without bass punch or highs...
Aftermarket speakers can be put into the doors... You do have to cut off the factory connector and recrimp two terminal lugs per speaker. Some speakers fit without much of a hassle, and others require custom spacers and the door panel to be worked on, etc. While the factory speakers are supposed to be 6-1/2 inch speakers, they are SMALL... You only have 2-1/2 inches of mounting depth before you hit the window, and the door hole cutout is only slightly bigger than 4 inches. With that in mind, choose something on the small side for 6-1/2 or try 5-1/4 inch replacements.
Good luck!
Southbound
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