Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


RGP

RGP

38 posts

Geek


#111160 25-Oct-2012 22:32
Send private message

Hi - I am installing a sound system throughout the house for background music - doesn't need to be extra loud or of great quality . I have 5 of these speakers from Jaycar

http://www.jaycar.co.nz/productView.asp?ID=CS2445&form=CAT2&SUBCATID=1008#4

each with this volume control

http://www.jaycar.co.nz/productView.asp?ID=AC1685&keywords=attenuator&form=KEYWORD

connected in series. I am using an old Denon amp to drive them. It dosen't like it - it's getting hot!

What am I doing wrong?

thanks Ross 


Create new topic
B1GGLZ
1960 posts

Uber Geek


  #706660 26-Oct-2012 08:41
Send private message

Well if you have them wired in parallel and they are 8 ohm speakers then you are presenting your amp output with 1.6 ohms.
No wonder it's complaining. It's being somewhat stressed. If they are 4 ohm speakers the problem is even worse (0.8 ohms).
Can you supply some more info?

Jaxson
7109 posts

Uber Geek

Trusted

  #706666 26-Oct-2012 08:48
Send private message

Yeah the website doesn't list the 'ohm' rating for these speakers. With some careful configuration you could probably get even numbers of pairs to work ok, but yeah, it's not just as simple as connecting them all up.

 
 
 
 


RGP

RGP

38 posts

Geek


  #707082 26-Oct-2012 17:55
Send private message

Yes, I've connected them in parallel. No markings on the speaker as to what ohm they are rated at.
Thanks Ross

HiDefinition
19 posts

Geek


  #707208 26-Oct-2012 21:54
Send private message

Your Denon amp, does it have A+B speakers?

RGP

RGP

38 posts

Geek


  #707221 26-Oct-2012 22:27
Send private message

no -its an old one, may need to upgrade

thanks Ross

Dunnersfella
3870 posts

Uber Geek


  #707227 26-Oct-2012 22:52
Send private message

Hang on, have you connected them in series, or in parallel?

Have a look at this YouTube video to get an idea on how to connect them in series.
That way you can match the speakers to your amp correctly (assuming your amp can drive the Jaycar cheapies).

HiDefinition
19 posts

Geek


  #707241 26-Oct-2012 23:45
Send private message

Sorry, do you have 5 speakers (2x pairs +1) or, 5 pairs?
I assume it's 5 pairs since, you have 5 volume controllers?
And each pair goes from your amp, via a vol control, to the left and right of each pair?
And you've connected all the -lefts together, all the +lefts together, ditto for the rights and then connected them to the respective speaker terminals on the amp?

 
 
 
 


RGP

RGP

38 posts

Geek


  #707310 27-Oct-2012 09:15
Send private message

thanks Hidefinition - thats exactly how I've connected them although these speakers are stereo speakers ie each speaker has a left and right connection, so there are five speakers in total.

Hi Dunnersfella - connected in parallel - got it wrong in my original post. No link to youtube but will search for it

thanks guys

richms
23594 posts

Uber Geek

Trusted
Subscriber

  #707807 28-Oct-2012 11:11
Send private message

you cant series them if you want individual volume control as they will all effect each other.

I just ended up getting several dirt cheap class T amps off ebay. 12V in and speaker out. google on bypassing the tone controls because they are crap. PC powersupply running 3 of them no worries.




Richard rich.ms

RGP

RGP

38 posts

Geek


  #711910 4-Nov-2012 21:20
Send private message

Thanks for your replies -the T amps look like the way to go if I was doing it again. Looks like I should have purchased these http://www.jaycar.co.nz/productView.asp?ID=AC1665&keywords=attenuator+volume&form=KEYWORD as they maintain a correct impedance match between amp and speaker - up to 8 speakers. Will see if Jaycar will take the ones I have back

cheers
Ross


Create new topic




News »

Amazon introduces new Echo devices
Posted 25-Sep-2020 11:56


Mad Catz introduces new S.T.R.I.K.E. 13 Mechanical Gaming Keyboard
Posted 25-Sep-2020 11:34


Vodafone NZ upgrades international submarine network
Posted 25-Sep-2020 09:09


Jabra announces wireless noise-cancelling airbuds, upgrade existing model
Posted 24-Sep-2020 14:43


Nokia 3.4 to be available in New Zealand
Posted 24-Sep-2020 14:34


HP announces new HP ENVY laptops aimed at content creators
Posted 24-Sep-2020 14:02


Logitech introduce MX Anywhere 3
Posted 21-Sep-2020 21:17


Countdown unveils contactless shopping with new Scan&Go tech
Posted 21-Sep-2020 09:48


HP unveils new innovations for businesses adapting to rapidly evolving workstyles and workforces
Posted 17-Sep-2020 15:36


GoPro launches new HERO9 Black camera
Posted 17-Sep-2020 09:45


Telecommunications industry launches new 5G Facts website
Posted 17-Sep-2020 07:56


New Zealand ranks 3rd in world in GSMA index
Posted 15-Sep-2020 10:13


Trend Micro Security Suite adds web monitoring to prevent identity theft
Posted 14-Sep-2020 15:37


NVIDIA to acquire Arm for US$ 40 billion
Posted 14-Sep-2020 12:27


Epson launches its next gen A3+ colour EcoTank multi-function printer
Posted 10-Sep-2020 16:08



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.