How good are the cheap fullrange drivers? - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 9th April 2013, 10:26 PM   #1
diyAudio Member
 
Join Date: Feb 2013
Default How good are the cheap fullrange drivers?

I was thinking of building some cheapo speakers for my desktop using these drivers: FR88 - Fountek 3 inch full range aluminum basket - Europe Audio

And a Lepai 2x6 watt t-amp.

But then I was just wondering how good sound quality will such setup have?

Can it beat other cheap multimedia speakers, like:
these
Samson Media One 3a - Thomann Verkkokauppa
or
M-Audio AV30 Studiophile - Thomann Verkkokauppa these?

Any opinions?
  Reply With Quote
Old 10th April 2013, 01:12 AM   #2
Jay is offline Jay  Indonesia
diyAudio Member
 
Join Date: Feb 2003
Location: Jakarta
THE DRIVER. Multimedia speakers rarely used good quality drivers. The Fountek looks a lot better to me even tho I have never heard it. Fullrange is often a better option than multi-way in low price level such as this.

THE AMP. Class-A amp is best to hide cheap speaker deficiencies and display the midrange strength that will justify the lack of bass from the driver. But is expensive and not practical. So common option is chip amp which sound good (low THD) at listening power and at selected speaker load. At 5W output power, my favorite is TDA2030A (the chip can be coupled with bipolar output if 7W is needed). But there are better discrete options but you have to search and need to have some skill.

THE BOX. Very important in this game. You want a vented box, especially with driver having Fs of 105Hz. Many multimedia cut the cost down by using plastic box (plastic is easy to form to look good) which sounds boxy. You can do better with DIY. Expensive multimedia speakers use aluminum box.
  Reply With Quote
Old 10th April 2013, 01:30 AM   #3
diyAudio Member
 
Join Date: Jun 2011
You might like to look at this thread started by sreten.

Computer Speakers - what you can get for 25 USD or 15GBP

His conclusion is that you can spend a lot of effort (and some money) and not get performance as good as the particular speakers mentioned in the thread.

'A self build without some active EQ could easily tonally be worse.'
__________________
Now I am Become Death, the Destroyer of Words
  Reply With Quote
Old 10th April 2013, 02:29 AM   #4
diyAudio Member
 
Join Date: Nov 2007
FR88 in a small vented box with a little passive eq would sound KILLER compared to commercial offerings!

Larry
  Reply With Quote
Old 10th April 2013, 03:12 AM   #5
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
You can get a lot out of a small speaker with a little ingenuity. A Cornu spiral comes to mind as does a downsized version of planet10's FHIII. They have both been done recently and can be made from foam core board and then dressed up quite nicely. It really comes down to box size. Are these going to be actually on your desk? If so, both of those are eliminated, if not you might start thinking about them.
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 10th April 2013, 03:33 AM   #6
diyAudio Member
 
picowallspeaker's Avatar
 
Join Date: Apr 2007
The 15 W amplified boxes ranging from 69 to 99 , they both employ a
tweeter. The definition given by a 1"dome is unreacheable by larger drivers.

One may argue that for the very high frequencies given their short wavelenght
also from the apex of the dome you'll hear 'discrepancy' ( interference) versus the sound emitted from the base ... But that's academic ....
  Reply With Quote
Old 10th April 2013, 02:02 PM   #7
diyAudio Member
 
Join Date: Feb 2013
Thanks for the great responses, and also the Logitech X140 speaker link, very good read and surprised of their performance. They seem to use tangband drivers in them.

To add some more detail;
1. I would use these drivers with some dipole subwoofers, so will cross over at 100-200hz, I don't need any much bass from these tiny speakers. Was planning to build the enclosures of metal actually, but don't have any plans yet.

2. I will use minidsp for the crossover, so I think I can also eq the drivers with that if needed.

What I want is basically very accurate midrange, with decent? highs that would at least be better than some cheapo multimedia speakers..

Last edited by hedphones; 10th April 2013 at 02:22 PM.
  Reply With Quote
Old 10th April 2013, 02:11 PM   #8
diyAudio Member
 
vacuphile's Avatar
 
Join Date: Apr 2011
Location: Not where whatever I am looking for is at.
Hi Hedphones.

I work with the Fountek FR88EX and find it to be an excellent driver, but I do use a tweeter on it. The problem as with all full range speakers is beaming if you don't employ a 2 way. Some don't seem to care, but I think building good speakers is all about controlling directivity.

The Maudio AV30 is a speaker I bought because it received good reviews, and I wanted to know what the competition is doing. It superficially sounds nice, but the FR is all over the map. Plays pretty loud, though.

Quality wise, I would go for the Fountek with a small tweeter.

On amplification, classD such as the Tripath based Lepai, really punches above its weight. I have no experience with the Lepai, but I know the Sure and 41Hz implementations with the 2020 chip, and you can't go wrong with these. Just add a wall brick PS and you are ready to go.
__________________
Everything is somewhere. Where the @!#$ is it.

Last edited by vacuphile; 10th April 2013 at 02:15 PM.
  Reply With Quote
Old 11th April 2013, 07:11 PM   #9
diyAudio Member
 
Join Date: Dec 2012
Location: Newark, DE
I don't know the cost in Europe, but the Mark Audio CHR-70 v3 goes for $36 each in the US. There also is a wide range of enclosure designs available that are optimized for these drivers from Planet 10, Mark Audio, etc.
  Reply With Quote
Old 11th April 2013, 10:13 PM   #10
diyAudio Member
 
Join Date: Feb 2013
Quote:
Originally Posted by vacuphile View Post
Hi Hedphones.

I work with the Fountek FR88EX and find it to be an excellent driver, but I do use a tweeter on it. The problem as with all full range speakers is beaming if you don't employ a 2 way. Some don't seem to care, but I think building good speakers is all about controlling directivity.

The Maudio AV30 is a speaker I bought because it received good reviews, and I wanted to know what the competition is doing. It superficially sounds nice, but the FR is all over the map. Plays pretty loud, though.

Quality wise, I would go for the Fountek with a small tweeter.
What do you exactly mean by beaming? Does it mean off-axis coloration or something?

Could you also add more info/pics of the 2-way speaker you made with the EX88? What tweeter did you use and what crossover freq?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
a bass reflex using two fullrange drivers. A good idea ? hornophile Full Range 10 27th January 2009 11:50 PM
Cheap 6 1/2 inch fullrange drivers dpuopolo Full Range 4 4th December 2007 07:12 PM
Searching for good 16cm (6.5') fullrange Drivers ... youyoung21147 Full Range 23 28th August 2005 03:23 PM


New To Site? Need Help?

All times are GMT. The time now is 11:44 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2