Bass Cab wiring. - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps

Instruments and Amps Everything that makes music, Especially including instrument amps.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 12th January 2006, 12:50 PM   #1
Snoo is offline Snoo  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Bristol
Default Bass Cab wiring.

Hello, I'm new here and after some help if you could..

I've just obtained an old bass cab with 2 x 15" HH Acoustics B15L drivers inside. This drivers are quoted as 100W 16 Ohm.

They were wired badly before with each one connected to a seperate jack at the back. i.e, they both had to be plugged in separately.

I want to wire them to a single jack to use with a solid state amp and 16 or even 32 ohms seems high. I would expect 8 or 4 so was confused when i read the back of the drivers.

Can anyone advise on wiring? I'm guessing if I wire them both in parallel then the total will be 8 ohm and more sensible? Correct?

Any advice appreciated.

Thanks,
Snoo.
  Reply With Quote
Old 12th January 2006, 12:53 PM   #2
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Default Re: Bass Cab wiring.

Quote:
Originally posted by Snoo
Can anyone advise on wiring? I'm guessing if I wire them both in parallel then the total will be 8 ohm and more sensible? Correct?
Hi Snoo, and welcome to diyAudio.

Parallel will work fine, and was probably the way they were set up initially.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 12th January 2006, 12:54 PM   #3
quasi is offline quasi  Australia
diyAudio Member
 
quasi's Avatar
 
Join Date: Sep 2004
Location: Adelaide, Australia
Yes, if you wire them in parallel you will get an 8 ohm impedance and a total power handling of 200 watts ie; 100 watts per speaker.

Cheers

.....and it seems I am way too slow.....
  Reply With Quote
Old 12th January 2006, 12:58 PM   #4
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
I had an advantage- as Snoo is a new member I had to read and approve his post before it was shown here.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 12th January 2006, 01:59 PM   #5
Snoo is offline Snoo  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Bristol
Thanks guys.

Much appreciated.
  Reply With Quote
Old 12th January 2006, 02:19 PM   #6
Snoo is offline Snoo  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Bristol
Incidently, how accurate would you expect the quoted impedence on a set of drivers to be?

They say 16 but both read 12.7 on a meter!

Not worried, just curious.
  Reply With Quote
Old 12th January 2006, 02:28 PM   #7
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Sounds about right. Impedance is related to AC, so DC measurements are only useful for a rough guide.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 12th January 2006, 05:28 PM   #8
diyAudio Member
 
Join Date: Jul 2005
Location: North Derbyshire
Quote:
Originally posted by pinkmouse
Sounds about right. Impedance is related to AC, so DC measurements are only useful for a rough guide.
Yes, DC measurements read lower than the impedance, generally an 8 ohm speaker reads about 6 ohms, a 4 ohm about 3 ohms, so a 16 ohm would read about 12 ohms (which is what you got). You don't need to get technical about it, just pick the standard value that's next highest above your DC reading - although you do get occasional 'special' values, like 6 ohm impedance!.
__________________
Nigel Goodwin
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bass Cabinet Speaker Wiring DAVID WARD Multi-Way 6 9th July 2009 11:15 PM
Wiring a bass cab Freddie123 Instruments and Amps 4 21st November 2006 10:26 AM
Focusing on wiring cable for gainclone!!!Share ur experience in wiring cable.... thomgun_lc Chip Amps 38 31st August 2005 02:46 PM
I'm wiring my 4 channel 8 parallel LM4780 boards... check my wiring :) Audiophilenoob Chip Amps 9 16th August 2005 04:37 AM
bass guitar cabinet wiring stupid m0nkey Multi-Way 3 8th March 2004 01:15 PM


New To Site? Need Help?

All times are GMT. The time now is 10:45 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2