Blast King speaker

slideman82 · 28th June 2010, 01:42 AM

I've recently purchased a Blast King 15" woofer, model BKW 1556, and the only technical data I have is 300W peak power, 2.5" coil (I think this is big!), magnet weight and nothing else... do anyoneknow something about it, as RMS power, SPL, etc? Thanks!

BTW, sounds great!

chris661 · 28th June 2010, 01:11 PM

RMS power is usually about half, so think 150w RMS.

What kind of cabinet are you using it in?

Th3 uN1Qu3 · 28th June 2010, 08:20 PM

You can measure its thiele/small parameters with a piece of software, an amp, and your soundcard. That way you can build a proper box for it.

slideman82 · 29th June 2010, 07:56 PM

Quote:

Originally Posted by Th3 uN1Qu3

You can measure its thiele/small parameters with a piece of software, an amp, and your soundcard. That way you can build a proper box for it.

Hey hey hey! That's too much work! I wanted the easy way! I'm using it in a 1 x 15 cabinet, it has about 110 litres of internal volume (without the speaker), just for play the bass guitar with my band. Sounds great!

Th3 uN1Qu3 · 29th June 2010, 10:14 PM

Well that cabinet size sounds about right for a 15". If it sounds fine then why bother.

slideman82 · 30th June 2010, 03:36 PM

Quote:

Originally Posted by Th3 uN1Qu3

Well that cabinet size sounds about right for a 15". If it sounds fine then why bother.

Just curious... I wanted an Eminence Beta 15 with 98dB, but got this for less than the half of the other, but no technical data... 2.5" coil diameter is quite big for 150W RMS, isn't it?

chris661 · 30th June 2010, 03:50 PM

Nah, just depends on the motor structure (over huge vs under hung etc). I've heard of 15" drivers with 4" voice coils, but they'd handle a very large amount of power...

Can you post pictures of the woofer? This might give us some clues about it. The Eminence driver will likely have more sensitivity, meaning you can go louder per watt. Handy if you happen to like that sort of thing.

Chris

Cal Weldon · 30th June 2010, 03:54 PM

2" - 2.5" is pretty normal for that power rating. Altec has 3" coils for 75 watts.

slideman82 · 30th June 2010, 04:11 PM

Quote:

Originally Posted by chris661

Nah, just depends on the motor structure (over huge vs under hung etc). I've heard of 15" drivers with 4" voice coils, but they'd handle a very large amount of power...

Can you post pictures of the woofer? This might give us some clues about it. The Eminence driver will likely have more sensitivity, meaning you can go louder per watt. Handy if you happen to like that sort of thing.

Chris

I like more SPL better, and more if they are Eminence speakers, they are great! Also there isn't enough variety of brands here... and current conversion aren't helping us very much.

I use a 1 x 12 and this 1 x 15 cabinet with semi-open back (just 10 cm in the middle, at the back) and this allows me for a bit more treble, and also my drummer can listen me a bit more...

GM · 30th June 2010, 05:05 PM

Blast King is owned by Intermark now, so contact them for more info: Intermark Industries, INC.

GM

28th June 2010, 01:42 AM	#1
slideman82 diyAudio Member Join Date: Oct 2007	Blast King speaker I've recently purchased a Blast King 15" woofer, model BKW 1556, and the only technical data I have is 300W peak power, 2.5" coil (I think this is big!), magnet weight and nothing else... do anyoneknow something about it, as RMS power, SPL, etc? Thanks! BTW, sounds great!

28th June 2010, 01:11 PM	#2
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	RMS power is usually about half, so think 150w RMS. What kind of cabinet are you using it in? __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

30th June 2010, 03:50 PM	#7
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Nah, just depends on the motor structure (over huge vs under hung etc). I've heard of 15" drivers with 4" voice coils, but they'd handle a very large amount of power... Can you post pictures of the woofer? This might give us some clues about it. The Eminence driver will likely have more sensitivity, meaning you can go louder per watt. Handy if you happen to like that sort of thing. Chris __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

30th June 2010, 03:54 PM	#8
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	2" - 2.5" is pretty normal for that power rating. Altec has 3" coils for 75 watts. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

30th June 2010, 05:05 PM	#10
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Blast King is owned by Intermark now, so contact them for more info: Intermark Industries, INC. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.


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28th June 2010, 08:20 PM	#3
Th3 uN1Qu3 diyAudio Member Join Date: Feb 2010 Location: Bucharest	You can measure its thiele/small parameters with a piece of software, an amp, and your soundcard. That way you can build a proper box for it.

29th June 2010, 10:14 PM	#5
Th3 uN1Qu3 diyAudio Member Join Date: Feb 2010 Location: Bucharest	Well that cabinet size sounds about right for a 15". If it sounds fine then why bother.

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