4340 & 4341 references thread

[hjames]

Worthwhile improvements to the 4340/4341 Monitors

Considering that the 4340/41 and the 4343 are basically the same components, recommended updates for the 4343 ought to apply to the 4340/41

To save Giskard from posting these tips yet again, I'll quote his post from The JBL 4345 Club thread.

One last time:

Stock 4343
1. Bi-amp and build a biased bi-amp only 3143 filter
2. Aquaplas the 2420 diaphragm

Upgrade to 4344
1. 2231 => C8R2235
2. 2121 => C8R2122
3. 2420 => aquaplased D16R2421 or D16R2425 diaphragm
4. Bi-amp and build a biased bi-amp only 3144/3145 filter

In a discussion with Oznob, Mr. Widget commented:

...with the 4341s... I'd also update them to 4344s, but do so in a manner that was reversible for the collector market.

For a really detailed version of the phrase "Convert the 4343s to 4344s" please read Porschepm's post detailing the 2 1/2 year upgrade of his 4343s - see #228 at http://www.audioheritage.org/vbullet...&postcount=228
Highly recommended!