Power Amplifier

charlestpt · 11th June 2012, 09:38 AM

can somebody suggest a power amplifier to run a pair of these boxes

Ahuja Sound Solutions

KatieandDad · 11th June 2012, 10:33 AM

PA speakers don't need anything exotic.

charlestpt · 11th June 2012, 10:40 AM

why do you think like that?

KatieandDad · 11th June 2012, 10:46 AM

If you wanted a decent sound you would buy decent speakers.

PA speakers are designed for a specific purpose, Hi-Fi isn't one of them.

Any half decent Class AB or Class D amp will suit even the best PA speakers.

Jay · 11th June 2012, 11:53 AM

For PA speakers you need an amp that can drive difficult load. People usually prefer a high power one, but it doesn't always guarantee a good drive. And power specs is often a lie.

Amplifier with good drive must have paralleled output transistors. Bipolar is better, but there are many cheap/fake bipolars that sound "hard".

If you are after DIY, here at DIYA you can search for "dirty harry" or "NBIP quasi amp" for example. Or find out about "DX amplifier".

AndrewT · 11th June 2012, 01:01 PM

the speaker is specified as 101dB/W @ 1m
and
127dB @ 1m max.

That implies 200W of input, plus an allowance for compression at high power.
3dB of compression is not unknown, so a 400W amp will allow the speaker to reach 127dB @ 1m.

Buy any 400W into 4ohms PA amplifier.

KatieandDad · 11th June 2012, 02:05 PM

As AndrewT has re-iterated. This is a PA speaker. Any Class AB/B/D/T amp will suit it.

charlestpt · 11th June 2012, 03:43 PM

Quote:

Originally Posted by AndrewT

Buy any 400W into 4ohms PA amplifier.

Why i have to buy an amplifier?
I want to diy a good decent amplifier from this forum please suggest me if you have one

KatieandDad · 11th June 2012, 03:45 PM

Any cheap 400W amp will do the job.

Cheaper to buy one than to build one for those speakers.

charlestpt · 11th June 2012, 03:49 PM

Quote:

Originally Posted by KatieandDad

Any cheap 400W amp will do the job.

Cheaper to buy one than to build one for those speakers.

Here in India amplifiers are not cheap to buy but cheap to diy

11th June 2012, 09:38 AM	#1
charlestpt diyAudio Member Join Date: May 2012	Power Amplifier can somebody suggest a power amplifier to run a pair of these boxes Ahuja Sound Solutions

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11th June 2012, 10:33 AM	#2
KatieandDad diyAudio Member Join Date: Nov 2011 Location: UK	PA speakers don't need anything exotic.

11th June 2012, 10:40 AM	#3
charlestpt diyAudio Member Join Date: May 2012	why do you think like that?

11th June 2012, 10:46 AM	#4
KatieandDad diyAudio Member Join Date: Nov 2011 Location: UK	If you wanted a decent sound you would buy decent speakers. PA speakers are designed for a specific purpose, Hi-Fi isn't one of them. Any half decent Class AB or Class D amp will suit even the best PA speakers.

11th June 2012, 11:53 AM	#5
Jay diyAudio Member Join Date: Feb 2003 Location: Jakarta	For PA speakers you need an amp that can drive difficult load. People usually prefer a high power one, but it doesn't always guarantee a good drive. And power specs is often a lie. Amplifier with good drive must have paralleled output transistors. Bipolar is better, but there are many cheap/fake bipolars that sound "hard". If you are after DIY, here at DIYA you can search for "dirty harry" or "NBIP quasi amp" for example. Or find out about "DX amplifier".

11th June 2012, 01:01 PM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	the speaker is specified as 101dB/W @ 1m and 127dB @ 1m max. That implies 200W of input, plus an allowance for compression at high power. 3dB of compression is not unknown, so a 400W amp will allow the speaker to reach 127dB @ 1m. Buy any 400W into 4ohms PA amplifier.

11th June 2012, 02:05 PM	#7
KatieandDad diyAudio Member Join Date: Nov 2011 Location: UK	As AndrewT has re-iterated. This is a PA speaker. Any Class AB/B/D/T amp will suit it.

11th June 2012, 03:45 PM	#9
KatieandDad diyAudio Member Join Date: Nov 2011 Location: UK	Any cheap 400W amp will do the job. Cheaper to buy one than to build one for those speakers.