High Efficiency Mini DIY Speakers for T-amp

DreadPirate · 21st September 2008, 02:43 PM

I want to build something small and cheap for my first DIY speaker project. An 8x10 or so box, 2-way. I like the looks of the bargain mini at zaph, but its efficiency is 80dB and its an 8-ohm design. It is desirable, but not imperative, that it work well with my sureelectronics t-amp clone. I currently am running a pair of Klipsch KG-2 (90dB, 4ohm) on it and I must say it is going to be hard to beat this combination sound-wise, but these speaks are a bit bulky, looking for something smaller.

Anyway, are there any small high efficiency DIY designs out there with total driver price around $30 each with size and performance like the "bargain mini"?

audiosteve · 2nd February 2009, 03:16 PM

I know this reply is late but I just happened upon the post.
I just built two pair of bargain minis for my daughters. They are using them with their computers driven by TA-20204 tripath amps. The same chip as the Sonic Impact. They sound excellent and will play plenty loud for the intended use. If you want real volume then this will not work. But if you are OK with moderate volume then I think you will be very pleased with the results.
Having said that, my oldest teenager is not happy with the volume level. I think it's fine. She wants louder.

tinitus · 2nd February 2009, 03:37 PM

http://home.versatel.nl/chiararomee/diy/indexeng.htm

Looks ok...and cheap, ALL drivers together cost 55USD

seagrasser · 2nd February 2009, 07:13 PM

This one looks promising

http://www.madisound.com/catalog/pro...oducts_id=8525

MisterTwister · 3rd February 2009, 01:47 PM

I think you'll need to look for bipole design, so sensitivity is not wasted by baffle step correction.

DreadPirate · 4th February 2009, 11:16 PM

That RB-1 kit looks quite the deal! A bit on the large side size-wise. I've been considering going the Tri Trix route since I have a set of unused Dayton D28s...

JoshK · 5th February 2009, 03:13 PM

Hoffman's Iron Law implies hi-efficiency + small size = no bass.

bobhowell · 6th February 2009, 01:48 AM

I just did a similar project and decided to go the full range route. I got a set of the Fostex 107e, on sale at Madisound and made the box they show plans for. They sound great. I have a small sub for the low end. I got this as a present for my daughter, with a SI G2 T-amp. I tried ZBM4's but it would not drive them.

I found many other horn designs here at the FR section. I will build the Metronomes some day.

In a 16x12 room, I never go past 1/2 power.

21st September 2008, 02:43 PM	#1
DreadPirate diyAudio Member Join Date: Jan 2006 Location: Northern Virginia, USA	High Efficiency Mini DIY Speakers for T-amp I want to build something small and cheap for my first DIY speaker project. An 8x10 or so box, 2-way. I like the looks of the bargain mini at zaph, but its efficiency is 80dB and its an 8-ohm design. It is desirable, but not imperative, that it work well with my sureelectronics t-amp clone. I currently am running a pair of Klipsch KG-2 (90dB, 4ohm) on it and I must say it is going to be hard to beat this combination sound-wise, but these speaks are a bit bulky, looking for something smaller. Anyway, are there any small high efficiency DIY designs out there with total driver price around $30 each with size and performance like the "bargain mini"?

2nd February 2009, 03:16 PM	#2
audiosteve diyAudio Member Join Date: May 2004 Location: Niwot, CO	I know this reply is late but I just happened upon the post. I just built two pair of bargain minis for my daughters. They are using them with their computers driven by TA-20204 tripath amps. The same chip as the Sonic Impact. They sound excellent and will play plenty loud for the intended use. If you want real volume then this will not work. But if you are OK with moderate volume then I think you will be very pleased with the results. Having said that, my oldest teenager is not happy with the volume level. I think it's fine. She wants louder. __________________ Nihilism is best done by professionals.

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2nd February 2009, 07:13 PM	#4
seagrasser diyAudio Member Join Date: Nov 2005	This one looks promising http://www.madisound.com/catalog/pro...oducts_id=8525

3rd February 2009, 01:47 PM	#5
MisterTwister diyAudio Member Join Date: Feb 2006 Location: usa Blog Entries: 1	I think you'll need to look for bipole design, so sensitivity is not wasted by baffle step correction.

4th February 2009, 11:16 PM	#6
DreadPirate diyAudio Member Join Date: Jan 2006 Location: Northern Virginia, USA	That RB-1 kit looks quite the deal! A bit on the large side size-wise. I've been considering going the Tri Trix route since I have a set of unused Dayton D28s...

5th February 2009, 03:13 PM	#7
JoshK diyAudio Member Join Date: May 2004 Location: Toronto, ON	Hoffman's Iron Law implies hi-efficiency + small size = no bass.

6th February 2009, 01:48 AM	#8
bobhowell diyAudio Member Join Date: Dec 2008	I just did a similar project and decided to go the full range route. I got a set of the Fostex 107e, on sale at Madisound and made the box they show plans for. They sound great. I have a small sub for the low end. I got this as a present for my daughter, with a SI G2 T-amp. I tried ZBM4's but it would not drive them. I found many other horn designs here at the FR section. I will build the Metronomes some day. In a 16x12 room, I never go past 1/2 power.

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