SDA 2B HF Inductor Measurements
VR3
Posts: 28,747
L1 - 2.66 MH, 1.35 ohms
L2 - 1.25 MH, .89 ohms
SDA Inductor (L3?) - 16.29 MH, 2.65 Ohms
L2 - 1.25 MH, .89 ohms
SDA Inductor (L3?) - 16.29 MH, 2.65 Ohms
- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
Post edited by VR3 on
Comments
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I forgot one - will update in a sec, sorry- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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Smallest Inductor - in high frequency circuit -
.42 MH, .72 ohms- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
L1 - 2.66 MH, 1.35 ohms
L2 - 1.25 MH, .89 ohms
SDA Inductor (L3?) - 16.29 MH, 2.65 Ohms
.42 MH, .72 ohms
I measured similar values for the stock inductors in my CRS+'s (same crossover as SDA 2B) prior to replacing them. A brief discussion of that mod is in figures 11-13 of this post. The prior CRS+ crossover modification is discussed in this thread.
0.40 mH, 22 AWG
> 0.416 mH, 0.71 ohms.
1.25 mH, 20 AWG
> 1.279 mH, 0.88 ohms.
2.50 mH, 20 AWG
> 2.470 mH, 1.27 ohms.
16 mH, 18 AWG
>16.300 mH, 2.66 ohms.Proud and loyal citizen of the Digital Domain and Solid State Country! -
Did you end up replacing them? If so, what did you find that was similar??
The closest thing I have found ERSE makes but I don't think it would be worth replacing them with the ERSE inductors...- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
NVM, I see you did replace them with the Jantzen inductors ---- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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DK, where did you order those inductors from?
Parts Express does not seem to stock some of the values....
Thanks!- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
The replacement Jantzen inductors (special ordered from Parts Express) had the following measurements:
0.40 mH, 22 AWG
> 0.413 mH, 0.64 ohms.
1.25 mH, 20 AWG
> 1.259 mH, 0.82 ohms.
2.50 mH, 20 AWG
> 2.509 mH, 1.34 ohms.
Jantzen part numbers and prices were:
0.40 mH, 22 AWG, Part No. 1489, $2.86.
1.25 mH, 20 AWG, Part No. 1137, $5.63.
2.50 mH, 20 AWG, Part No. 1695, $8.61.
The 16 mH, 18 AWG SDA inductors in two or my CRS+ pairs were replaced with Northcreek 16 mH, 14 AWG, 1.3 ohm inductors, $114.30 each.
The 16 mH SDA inductors in my third pair of CRS+'s was replaced with Solen 16 mH, 14 AWG, 0.945 ohm inductors, $67.68, part number S1416.0. The Solen inductors outperformed the Northcreeks and cost 40% less. The Solen inductors were ordered from Parts Connexion.Proud and loyal citizen of the Digital Domain and Solid State Country! -
How long did it take you to receive your inductors being a special order?
Thanks!- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
The Jantzen inductors took six weeks to arrive from Denmark. The standard special order delivery period for Jantzen parts is eight weeks. The Solen inductors took eight days to arrive from Canada.Proud and loyal citizen of the Digital Domain and Solid State Country!
