Skip to content

4ohm amp to 8 ohm speaker

Featured Replies

I have a 1200w at 8ohm PA driver and a 2000w at 4ohm amp, any risk to either bits of the kit If i was to hook it up?

  • Replies 5
  • Views 1.1k
  • Created
  • Last Reply

Top Posters In This Topic

Posted Images

An (transistor) amplifier rated at 4ohm output will not be overloaded by connecting an 8ohm speaker to it.

This will be quiter with an 8ohm speaker than with a 4ohm.

There are lots of arguments about performance but all irrelevant when its a cheap speaker in a car.

Just in case there are any other OldFarts on here.... the above is only true for modern transistor amplifiers, if you have a valve ('tube' if you can't speak English) amplifier then you should only use a lower imediance load not a higher one.

Try it and see if your happy - there is far too much sh**e spoken about this sort of thing with quotes like "it sounded rubbish in my car" - without any thought for why.

Get a noise you are happy with and F**** the rest of the world if they don't think its accurate or appropriate.

Just a thought - those W figures you have sound less honest than a car phone warehouse salesboy.

Enjoy your noise!!

Edited by kbs

  • Author

Its a P-Audio 1200w rms PA driver And a 'the loudest.com' 2000w amp.. and I'm in the army, but i do have a iphone 16gb 5s if your interested ;)

1200w from 12v?

If its 60% efficent, thats ~170A (about twice what your altenator can supply).

I suppose its 1200w for 3 micro-seconds then 20w for 997 micro-seconds?

(moan) in my day RMS was 'root mean squared' I missed the point it changed to 'really meaningless statistics', oddly R&B used to mean 'rythym and blues' I also missed when that changed its meaning to 'ranting and bollo**s'

If its really is 1200w @ 12v, you could fit a a battery next to the amp (about 5 times the size of the one under the bonnet) and use some copper pipe full of lead to connect the battery to the amp. That could give you almost an hour before needing recharging

Thanks for the iphone offer but sureley that 16gb card can really hold 16000 gb (RMS)?

I'll keep my 1990s Nokia 33xx's for now - until my eyes get too old to read the small display anyway.

Enjoy your music - hope all goes well - and hope you can really feel it in your chest.

Hope the nurse arrives soon - I really need the loo.

Edited by kbs

1200w from 12v?

If its 60% efficent, thats ~170A (about twice what your altenator can supply).

(moan) in my day RMS was 'root mean squared' I missed the point it changed to 'really meaningless statistics', oddly R&B used to mean 'rythym and blues' I also missed when that changed its meaning to 'ranting and bollo**s'

Enjoy your music - hope all goes well - and hope you can really feel it in your chest.

Hope the nurse arrives soon - I really need the loo.

post-36925-0-81655800-1426601291.gif

The actual specs are available for their "3000Watt" amp TL-1023.

http://www.theloudest.co.uk/?sectionid=2&page=view_product&product_id=102

A much more realistic

320W RMS into 4ohm at <1% distortion.

80Amp peak current.

82% efficient.

But it's a subwoofer amp with only up to 200 hertz frequency response and probably not the same as their old "2000Watt" amp.

Create an account or sign in to comment

Recently Browsing 0

  • No registered users viewing this page.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.