Car audio speaker selection?

[ajlelectronics]

Amplifiers do output a higher voltage than they are supplied.

Certainly, but cannot output more POWER than you put in.

 

[MetalMonkey]

Certainly, but cannot output more POWER than you put in.

Nobody has claimed or inferred that they do...

 

[dobbslc]

church organs at 10hz

Isn't that the sort of frequency that makes you sxxt yourself?

 

[My_Teenage_Self]

Okaaaaay... I'll bite... Although I think you're trolling us/being selectively obtuse...

You can have 100A fuses and cables the size of your leg, but the physics tells you that 13.8V driving a 4R load equals 40W regardless.

How? 13.8V into 4R doesn't compute.

My front sub (yes, I have 2 in the car; they play different frequencies) is a 4 ohm driver, supplied by a different helix Amp. Again, with all gains set properly, it also supplies the speaker with over 30v at full tilt - around 250watts. Again, these are real figures, not made up.

 

[tom2207]

Okaaaaay... I'll bite... Although I think you're trolling us/being selectively obtuse...





My front sub (yes, I have 2 in the car; they play different frequencies) is a 4 ohm driver, supplied by a different helix Amp. Again, with all gains set properly, it also supplies the speaker with over 30v at full tilt - around 250watts. Again, these are real figures, not made up.

isnt it just all down to .... P I V , are we not missing the function of an amplifier altogether ?

 

[JOEPRO]

Here is the Blue Magic speakers.(Insert cringe emoji here) They definitely go to 11



Actually they look like 2 way speakers and potentially decent enough? Obviously ill clean up the covers and repaint the grills. Or I could keep the surrounds and insert new 3 way speakers

 

[tom2207]

Here is the Blue Magic speakers.(Insert cringe emoji here) They definitely go to 11

View attachment 515438

Actually they look like 2 way speakers and potentially decent enough? Obviously ill clean up the covers and repaint the grills. Or I could keep the surrounds and insert new 3 way speakers

foam looks intact , so as long as they are working they will probably be grand ,,,, they certainly look the part

 

[JOEPRO]

foam looks intact , so as long as they are working they will probably be grand ,,,, they certainly look the part

Well in the context of a classic car, they are period correct looking and in a prominent position. So replacing them entirely is out of the question. But I think I will re wire all with quality new copper speaker cable and try them for a while and see.

 

[tom2207]

Well in the context of a classic car, they are period correct looking and in a prominent position. So replacing them entirely is out of the question. But I think I will re wire all with quality new copper speaker cable and try them for a while and see.

it wont make a jot of a difference ,,, never bother . Without starting another ten page discussion , too many folk talk garbage about cables ,,, some of the chat may be true and some not , but at the end of the day will you hear it on oem speakers and head unit ,,,,, nope.

 

[JOEPRO]

it wont make a jot of a difference ,,, never bother . Without starting another ten page discussion , too many folk talk garbage about cables ,,, some of the chat may be true and some not , but at the end of the day will you hear it on oem speakers and head unit ,,,,, nope.

Not sure why you appear triggered about mere suggestion of new cables.

Its for other reasons. Such as knobs having butchered the audio wiring before over the past 3 decades. And a factory fader part of the harness which is likely to be defunct now I need to check that out. But it will be better to re-run new speaker cables direct to each speaker into a new standard iso plug at the head unit undoing all the previous bodges by others.

 

[tom2207]

Not sure why you appear triggered about mere suggestion of new cables.

Its for other reasons. Such as knobs having butchered the audio wiring before over the past 3 decades. And a factory fader part of the harness which is likely to be defunct now I need to check that out. But it will be better to re-run new speaker cables direct to each speaker into a new standard iso plug at the head unit undoing all the previous bodges by others.

not triggered , but if oem stuff was in decent nick , its not worth upgrading , if its been messed with why wouldnt you fix it ,,, different scenarios only running on information given.

 

[JOEPRO]

Unfortunately the new Pioneer 3 way speakers clash with the dash speaker covers. So no go. Will have to find new speakers which are flush on top or not 3 way etc.

But I also noted the old speakers on the left have a considerably larger magnet than the new speakers?



Is this an indication of less power in the new speakers(?) No spec as such noted on the old ones.

 

[My_Teenage_Self]

magnet size doesn't mean anything. The Pioneer will be a vast improvement.

 

[tom2207]

Unfortunately the new Pioneer 3 way speakers clash with the dash speaker covers. So no go. Will have to find new speakers which are flush on top or not 3 way etc.

But I also noted the old speakers on the left have a considerably larger magnet than the new speakers?

View attachment 515503

Is this an indication of less power in the new speakers(?) No spec as such noted on the old ones.

dont worry . . a lot of the newer magnets seem smaller physically but the strength of the magnet may have gone up and thats what counts , some of the new professional horns are crazy to look at compaired o the older ones , those mounting tabs can come off if thats whats in the way , if its depth you could get some spacers 3d printed maybe ,,, just thinking outloud.

 

[PhillipM]

Certainly, but cannot output more POWER than you put in.

But the amplifier input is probably not 4 ohms of resistance. The speakers may be, but that doesn't mean the input side of the amp is.

 

[JOEPRO]

Oh man - give up already!!

PS I bought Kicker 100mm speakers that should fit, ill post an update in a few days. I think those speakers are a great find