wire connections

[rovingcowboy]

this is just something i forgot.
and need to know again.

but how to i connect two or more speakers to one channel with out lowering
the ohm's of the speakers.

or rasing the ohm's they need to stay at 8 ohms.

so now i have them all connected to the channels by normal wire screws on the back of the amp.

as in each of the speakers running positive to positive and negitive to negitive. making for a lot of wires trying to clamp on the back of the amp.

is that the way to make multiple speakers on one channel and keep them all at the eight ohm's ?

or should i dasiy chain them as in one positive wire from the amp
to the positive post on the first speaker. then the negitive wire from the first speaker, to the positive post of the second speaker. then taking the negitive wire from the second speaker back to the amp?

which is the way not to lower or raise the ohm's and cause my amp to burn out again. i can not remember since its been 20 years since i blew out the last amp, by making the wrong connection in the speakers i built.

i'd like to avoid another toasted amp if i can.

thanks

Archived topic from Iceteks, old topic ID:4922, old post ID:38407

[richardj]

Daisy-chaining them (positive to negative) would result in having to add the resistance of the individual speakers, as this would be a series circuit.

Being wired parallel, each speaker is it's own ciruit, so they maintain their own resistance.

Buy a couple of those crimp on ends, splice them all together with a wire nut & then run one wire to the back of your stereo from the splice.

Archived topic from Iceteks, old topic ID:4922, old post ID:38408

[rovingcowboy]

thanks i did not want to toast dad's amp.

Archived topic from Iceteks, old topic ID:4922, old post ID:38409

[onykage]

dont worry, you would have to apply a voltage across the amps output to toast an amp on the output side. Something you can do to help with daisy-chaining speakers and ohm increase. depending on the wattage, you can put in a cap on the positive lead to aid in the watts drop. Typically add .005uf per watt for anything after 35watts on any speakers past 3 or more. You can also add an extra .001uf per foot after the first 150', AND, you will want to always try to use a minimum of 18awg copper wire as your conductor. Typically you want to use 18/2awg stranded copper and then subtract 1awg per 100watts past the initial first 250watts.

IE.

In a full house audio system, from the amp to the first volume controller, I use 18/4 copper for systems with 3 rooms or less(1 pair of speakers per room @ 50 watts each speaker). For systems with greater then 3 rooms, i run 14/4 to the first volume controller and then 16/4 to each other controller in the run. I also add a .5uf cap to the positive lead on both the right and left channels at the first controller. These specs are also used with a Yamaha 629 receiver on the B zone output.

Archived topic from Iceteks, old topic ID:4922, old post ID:38571

[rovingcowboy]

i thank you for your time in that good answer.

but heres what it is like.

basement stereo unit.

speakers on basement level.
first floor level.
and
second floor level.

all speakers are mixed up types.
factory made home big unit speakers.
automobile 6 x 9, 2 way's
and old boom box speakers from fried boom boxes.

the wire is a mix of single size wire from unit to speaker
and mix size from unit to speaker meaning thin to thick wire or vise a versa.
and phone line wire.

home unit is old very old. pioneer. with 8 track. and fuse's on outside of unit
by speaker wires connections.

i got there and he had made a connection for a auto radio cassette player that he built a portable box to carry it in and use it with home power transformer.
and he had a cdrom disk changer hooked in to the system.
all powered by one power control desk top unit. which he had hooked up to a toggle switch to control the power to it. so he could turn them all off at once.
i looked at the system and said "DAD"
he said " hey it works "

reason for my disbelieving was the fact all the speakers were connected to the right channel and in a manner of such the front and rear switch did not matter.
they where on all over the place or off.

and they were all sounding horrible.

come to the rescue so i did. i hooked up all the wires to the left and right.
and found out the left fuse was blown. dad soddered a thin wire on the ends of the fuse now it works again. not adviseable to do but in a pinch it worked.

hey atleast he did not wrap it in foil.

then i found the speakers did not work.
tossed the front rear switch and still only the right channel.
turned the balance knob and lost all sound upon my touching the knob.
it is shorted out.
the back of the unit is shorted out.
the wires for the connection on the inside of the unit are shorted some place.
all speakers only work on right channel.

so i said why don't you buy a new one.

he said why that one works and i got it given to me by some one that was going
to throw it out.

once again i said " DAD "

so the thing is a big piece of crap but he wants it cause he might want to play
his 8 track tapes.

by the way the cdrom changer was thrown out by some one also.

the automobile radio was one i had bought and was fairly new so that
is the only thing that use to be good when he hooked it up to that system.

while i was there the one speaker stopped working and he could not figure out why it stopped. i told him it was a boom box speaker only about 3 watts and he was putting about 49 to 59 watts threw the system so why do you think it blew.?

by the way the boom box speakers were also all on old thrown out box's that he found on trash day..

any way that is what it was like. now it is the same except
no automobile radio and cassette.

and all the speakers are on the one right channel but now the front and rear is working as up and down switch.
and while i was there i had just put a new computer system in for mom to use.
it has all the songs on the computer he was listening to anyway.
so i had him make a long as..... y adaptor out of strong shielded wire from a yep you guessed it a discarded tell phone anwering system that was used in the factory he use to work at. the system was bad but the wire was good,
so he now has that long y adaptor hooked in to the computer sound card.
and plugged in to the home unit in the aux external tape input jacks.

still plays only right channels. so i put a program plugin on the computer for dsp.
which allows you to make the sound come out as mono.
which i set it to. now he hears all the sound as in both guitar and banjo in the song dualing banjos, but as mono.

before he only heard the guitar and never heard the dualing part..

mom does not need the sound on the computer she said.
she just listens to it from the stereo, along with the whole town.
dad has lost most his hearing on the mid note levels, so he cranks it up
to where he can hear it. and he can't hear the speaker rattle at all so he thinks they sound good.

now all that would and does sound funny.
except i know dad is not the same as he was.
he had a stroke.
and he use to be the fire chief at the factory the head maintance man,
the electrican. and the union rep..

and now he has forgotten how to hook up a stereo unit with proper wires and proper speakers.

he won't use the computer mom has to turn it on for him and start the music.

so that is the only sad thing about the whole situation.




thanks again for your help in the info. but as you can tell now. it is putting
gold on to wet mud and trying to sale it as real gold.









Archived topic from Iceteks, old topic ID:4922, old post ID:38577

[onykage]

aye mate, i totally understand. Sounds like your pop is quite a character. My father is in kind of the same situation. My dad was cripled in an off shore accident about 14 years ago. He gets around, but like you, my pop is not the same. All I can say is I wish you the best, and i hope you can continue to make the family stereo functional.

Archived topic from Iceteks, old topic ID:4922, old post ID:38582

[Wren]

Hey cowboy... Glad your Dad has music now and maybe the wiring is safer. I didn't understand all that but it seemed to be unsafe and you got it rigged up ok now.

Archived topic from Iceteks, old topic ID:4922, old post ID:38594

[rovingcowboy]

thanks Onykage, and Wren,

yep its rough with your dad after any accidents.
I'm sorry for your dad's troubles too.

its not hard to know wren, i was just saying how dad had messed up the wire connections, in that last post of mine. and i was asking how to make them correct in the first post which i had forgotten how to do.



Archived topic from Iceteks, old topic ID:4922, old post ID:38603