|  | 
08-08-2011, 01:29 PM
| | |  Head and Speaker's watts... HELP
Sign in to disble this ad
Hiho, I just need an answer which will maybe lead me to buy my new amp.
If my Head is a 400W one (4Ohms) and then, I use 2x210 (250W,8Ohms)...
Is that dangerous if my head runs 400w and my speakers can only take 250? 
If no, is there a way to limit my amp to 250W ?
Thanks!  |
08-08-2011, 02:21 PM
|  | And I went BING BOP. BINGA BINGA BING BING BOP. | | Join Date: Jun 2011 Location: Waukesha, Wisconsin | | If your head delivers 400w @ 4 Ohms, it'll deliver a whole lot less watts to an 8 Ohm load. Like half-ish. And besides, that's its maximum watts. Most of the time you presumably won't be running it at full tilt 
And besides, besides... those tens will reach maximum excursion and start farting like elephants way before you deliver enough wattage to fry the drivers. I think.
Last edited by scottfeldstein : 08-08-2011 at 02:23 PM.
|
08-08-2011, 02:28 PM
| | Registered User | | Join Date: Apr 2011 Location: Left Coast | | | Your 210's are rated for 250 watts each. if your running two of them, (8-ohm parallel = 4 ohm load) then your combined speaker load rating is 500 watts. Plenty of safety margin. |
08-08-2011, 02:31 PM
| | And I went BING BOP. BINGA BINGA BING BING BOP. | | Join Date: Jun 2011 Location: Waukesha, Wisconsin | | Ah, I totally misread the OP! You're running TWO 210 cabs, each rated at 8 ohms. That equals a 4 ohm load. The amp is going to deliver 400w @ 4 ohms, but each cab will only be getting 200w--well within their rated 250w ceiling.
Disregard my previous statement on the matter |
08-08-2011, 03:11 PM
| | Registered User | | Join Date: Jul 2007 Location: Dallas, TX | | | However, the spkrs rating is the thermal limit of the drivers. Real world use, they can handle approx. HALF that wattage. The rig will be fine if you remember this: ANY amp can blow ANY speakers. It's up to the user to use common sense.
__________________
edit signature
|
08-08-2011, 03:24 PM
| | Registered User
Owner, Bill Fitzmaurice Loudspeaker Design | | Join Date: Sep 2004 Location: New Hampshire | | | |
08-08-2011, 03:58 PM
| | Registered User
Endorsing: Ampeg | | Join Date: Apr 2005 Location: Apopka, FL | | | If your amp has a volume knob and you have some common sense, you will be fine.
__________________
Ampeg Portaflex Club #1
|
08-08-2011, 04:14 PM
|  | Registered User | | Join Date: Jan 2010 Location: KY USA | | | Speaker cab wattage / thermal ratings are typically meaningless. Use your ears and turn down the volume or lessen the low frequencies with EQ adjustments if the speakers start to complain.
__________________
Spector club # 232
|
08-08-2011, 04:19 PM
| | Registered User | | Join Date: Feb 2004 Location: Bristol, Connecticut, USA | | |
__________________
Hoof Hearted |
08-08-2011, 04:37 PM
|  | Registered User | | Join Date: Jul 2006 Location: Norway | | Quote: |
Originally Posted by Noobassguy If no, is there a way to limit my amp to 250W ? | Yes, there is, the volume knob. 
Like others said, use some common sense and you will be fine.
__________________
Out of time - out of tune |
08-08-2011, 09:35 PM
| | Registered User | | Join Date: Apr 2009 Location: San Francisco Bay Area, CA | | | If you start hearing awful farty sounds, turn down the volume, or the lows, or both.
__________________
Anime-ted Bass Players Group member #5. Mediocre Bassist Club member #316. 15" Club member #8. Metal Bassist Club Member #27
| | Thread Tools | Search this Thread | | | | 
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off | | | |
