View Full Version : Source components for M2 network

11-13-2018, 02:37 AM
Hi all!
I decided to try the network on my M2 clones after "riding bareback" for 2 years.
I have a hard time sourcing the components. Especially the resistors.
Anybody knows a good source?
The components are

3.3uF 250V
4.7uF 250V

13R 30W
11R 10W


11-13-2018, 02:50 AM
caps are WIMA MKP10
There are different models in this series, with different tolerance rating and leg spacing.
IIRC I got mine there: https://www.ebay.fr/usr/electricslee?_trksid=p2057872.m2749.l2754

As for the resistors, I used 3 of these 39 ohm 25W resistors (https://www.toutlehautparleur.com/resistance-non-inductive-haute-precision-tlhp-rni25-39-ohm-5-25w-9x65-mm.html) in parallel for 13 ohm (75W) and 2 of these 22 ohm 16W resistors (https://www.toutlehautparleur.com/resistance-non-inductive-haute-precision-tlhp-rni16-22-ohm-5-16w-9x56-mm.html) in parallel for 11 ohm (32W).

Wattage rating is very relative, and can be exceeded on peaks, but here is a comparison:
The original lpad with 30W/10W resistors can take around 50W in, resulting in about 6W into the D2
This version here with 75W/32W resistors can take around 120W in, resulting in about 15W into the D2

11-13-2018, 03:10 AM
Thanks a lot Pos
How critical is the voltage rating of the capacitors?

Earl K
11-13-2018, 03:52 AM
Thanks a lot Pos
How critical is the voltage rating of the capacitors?

Not very critical at all!

OTOH, some people presume ( myself included ) that higher voltage capacitors can sound better ( it's a very nuanced difference ) due to their construction usually employing thicker parts and a tighter wrapping technique ( so goes the lore ) resulting in a capacitor that's slightly less prone to micro-phonic resonances ( as one plus ).


11-14-2018, 08:49 AM
Per Thomas, if you use your 2450SL's you will need to add an autoformer

Here is what he recommended:
https://www.ebay.com/itm/Audio-Autotransformer-Pair-Klipsch-Crossover-T2A-Pair-MADE-IN-THE-USA/382404871179?hash=item59091b440b:g:oSAAAMXQgPFRHow X:rk:1:pf:0

I've been using this for a year or so now with good results. He had super fast shipping and excellent communication.