View Full Version : Source components for M2 network
johanwholst
11-13-2018, 03:37 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
Capacitors
3.3uF 250V
4.7uF 250V
Resistors
13R 30W
11R 10W
Thanks!
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
johanwholst
11-13-2018, 04:10 AM
Thanks a lot Pos
How critical is the voltage rating of the capacitors?
Earl K
11-13-2018, 04:52 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 ).
:)
srm51555
11-14-2018, 09:49 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.
Thanks,
Scott
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