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Old 28th April 2008, 01:11 PM   #1
haseeb is offline haseeb  India
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Default 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
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Old 28th April 2008, 05:17 PM   #2
sreten is offline sreten  United Kingdom
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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.
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Old 28th April 2008, 08:26 PM   #3
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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.
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Old 29th April 2008, 11:35 AM   #4
haseeb is offline haseeb  India
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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
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Old 29th April 2008, 02:29 PM   #5
sreten is offline sreten  United Kingdom
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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.
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Old 29th April 2008, 04:27 PM   #6
haseeb is offline haseeb  India
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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.
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Old 29th April 2008, 05:07 PM   #7
sreten is offline sreten  United Kingdom
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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.
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Old 30th April 2008, 04:24 PM   #8
haseeb is offline haseeb  India
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Thanks guys......!

Thats really a good stuff.
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