Amplifier to Drive small speakers

haseeb · 28th April 2008, 01:11 PM

Guys,

I have a query ,hope this may help people who plan to drive tiny speakers with power amplifier.

I want to drive 4" speakers with impedence 4ohm and 20wattage rating by an power amplifer of 200w rms into 4ohm.

How many tiny speakers(above mention ratings) should I connect in series/parallel to attain an optimum results from the amplifier?.

My assumption if we connect 2 set of speakers( connected in series) connected in parallel ,the complete set i.e 4 speakes rating becomes 80watts into 4 ohms.

Please correct me if this is wrong.

Haseeb

sreten · 28th April 2008, 05:17 PM

Hi,

Your assumption is correct but I am not sure how meaningful it is.
9 drivers can be wired to be 4ohms giving you apparently 180W power handling.

/sreten.

Cal Weldon · 28th April 2008, 08:26 PM

Hi Haseeb,

Perhaps you can tell us a little more and we can be more helpful.

Why a 200 wpc amp? Do you own it already?
Why 4" speakers, do you have those already?

If you don't already own both, then maybe we can get you going in the right direction.

haseeb · 29th April 2008, 11:35 AM

Hi Cal Weldon,

Thanks for posting the reply.

Infact I do not own both.

But, I am working on a 240watts power amp into 4ohm project.

The main design of the amp is to drive the speech at the best possible.

since the tiny speakers are good for mids and highs(I suppose) I want to drive tiny speakers with my amp.

Yes, I accept huge speakers are readily available to my maching watt ratings ,but they are prone to lows.

suggestions welcomed

sreten · 29th April 2008, 02:29 PM

Quote:

Originally posted by haseeb

The main design of the amp is to drive the speech at the best possible.

suggestions welcomed

Hi,

Then I'd say a line array will be your best option, 9 or 16 drivers.

/sreten.

haseeb · 29th April 2008, 04:27 PM

How to design a line array ?.

Can I do it with same 4" speakers ,do I need to use passive crossovers to dirve the tiny speakers ?.

Infact I am new to this line array terminology.

sreten · 29th April 2008, 05:07 PM

http://stevebunting.com/downloads/linearrays.pdf

Hi,

Column speakers have been around for years, a vertical stack of
identical drivers. Generally used in reverberant enviroments, e.g.
a railway station to improve vocal clarity of announcements etc.

http://www.pispeakers.com/ssdm_99.pdf should help somewhat.

/sreten.

haseeb · 30th April 2008, 04:24 PM

Thanks guys......!

Thats really a good stuff.

28th April 2008, 01:11 PM	#1
haseeb diyAudio Member Join Date: Feb 2008	Amplifier to Drive small speakers Guys, I have a query ,hope this may help people who plan to drive tiny speakers with power amplifier. I want to drive 4" speakers with impedence 4ohm and 20wattage rating by an power amplifer of 200w rms into 4ohm. How many tiny speakers(above mention ratings) should I connect in series/parallel to attain an optimum results from the amplifier?. My assumption if we connect 2 set of speakers( connected in series) connected in parallel ,the complete set i.e 4 speakes rating becomes 80watts into 4 ohms. Please correct me if this is wrong. Haseeb

28th April 2008, 05:17 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Your assumption is correct but I am not sure how meaningful it is. 9 drivers can be wired to be 4ohms giving you apparently 180W power handling. /sreten. __________________ There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow

28th April 2008, 08:26 PM	#3
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Hi Haseeb, Perhaps you can tell us a little more and we can be more helpful. Why a 200 wpc amp? Do you own it already? Why 4" speakers, do you have those already? If you don't already own both, then maybe we can get you going in the right direction. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

29th April 2008, 05:07 PM	#7
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	http://stevebunting.com/downloads/linearrays.pdf Hi, Column speakers have been around for years, a vertical stack of identical drivers. Generally used in reverberant enviroments, e.g. a railway station to improve vocal clarity of announcements etc. http://www.pispeakers.com/ssdm_99.pdf should help somewhat. /sreten. __________________ There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow

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29th April 2008, 11:35 AM	#4
haseeb diyAudio Member Join Date: Feb 2008	Hi Cal Weldon, Thanks for posting the reply. Infact I do not own both. But, I am working on a 240watts power amp into 4ohm project. The main design of the amp is to drive the speech at the best possible. since the tiny speakers are good for mids and highs(I suppose) I want to drive tiny speakers with my amp. Yes, I accept huge speakers are readily available to my maching watt ratings ,but they are prone to lows. suggestions welcomed

29th April 2008, 04:27 PM	#6
haseeb diyAudio Member Join Date: Feb 2008	How to design a line array ?. Can I do it with same 4" speakers ,do I need to use passive crossovers to dirve the tiny speakers ?. Infact I am new to this line array terminology.

30th April 2008, 04:24 PM	#8
haseeb diyAudio Member Join Date: Feb 2008	Thanks guys......! Thats really a good stuff.

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