audio inductors question

ChaS3 · 13th September 2005, 04:18 PM

Has anyone ever used the SuperQ audio inductor from ERSE ?

I am looking to build my own crossovers and really like the specs and features of this coil, just interested if anyone has tried these or not, thanks.

- Cha S3

Cal Weldon · 13th September 2005, 04:22 PM

You might get a better response over in loudspeakers section. Would you like me to move it?

Cal

Magura · 13th September 2005, 04:44 PM

If you take a closer look at those inductors, you will find that they are plain vanilla , relatively heavy gauge, steel core inductors, and actually of relatively low precision.

You could do a lot better winding you own air cores.

Magura

ChaS3 · 14th September 2005, 02:11 PM

But, wont an air core coil have a much higher DCR?

I am interested in the 5mH 14Ga SuperQ
I have linked to the DCR of the specific part.

14Ga 5mH Air Core Coil
I have linked to the DCR of the specific part.XQ

The XQ is the air core coil, the DCR is much higher.

Magura · 14th September 2005, 02:30 PM

Without going overboard in crazy gauge wire, you can make a 5mH air core that is around 0.25R DC

0.09R would not keep me awake at night

Magura

Lars Clausen · 14th September 2005, 03:00 PM

Magura: But can you beat this:

Quote:

Electrical Conductivity: 101.5%

Magura · 14th September 2005, 03:03 PM

Quote:

Originally posted by Lars Clausen
Magura: But can you beat this:

I had a laugh about this one as well. According to the specs, this is to be categorized as a power supply, as it actually adds power

Magura

ChaS3 · 7th October 2005, 05:38 PM

Im sorry but I do not understand why you feel that the specifications of the SuperQ are specified as a power supply. Could you please be more clear or explain?

According to the ERSE website when you search for inductance versus dcr of their xq air core coils, a 5mH with that DCR would be a 10Ga wire, this would be a very large and expensive coil compared to the SuperQ.. right?

Thanks in advance.

Tweeker · 11th October 2005, 08:15 PM

Cross-Over Network; Air Core Inductor Calculator

Air cores have less hysteresis and will vaporize long before any saturation whatsoever. You can buy a 10lb spool of 12 gauge magnet wire off Ebay to make 2 5mH inductors for ~$30. .4 DCR. The elimination of the iron core and is easily worth the added resistance.

Tweeker · 11th October 2005, 08:21 PM

While silly the 101.5% conductivity claim isnt completely ridiculous, its referenced against the International Annealed Copper Scale (IACS) standard.

13th September 2005, 04:18 PM	#1
ChaS3 diyAudio Member Join Date: Sep 2005	audio inductors question Has anyone ever used the SuperQ audio inductor from ERSE ? I am looking to build my own crossovers and really like the specs and features of this coil, just interested if anyone has tried these or not, thanks. - Cha S3

13th September 2005, 04:22 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	You might get a better response over in loudspeakers section. Would you like me to move it? Cal __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

13th September 2005, 04:44 PM	#3
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	If you take a closer look at those inductors, you will find that they are plain vanilla , relatively heavy gauge, steel core inductors, and actually of relatively low precision. You could do a lot better winding you own air cores. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

14th September 2005, 02:30 PM	#5
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	Without going overboard in crazy gauge wire, you can make a 5mH air core that is around 0.25R DC 0.09R would not keep me awake at night Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

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14th September 2005, 02:11 PM	#4
ChaS3 diyAudio Member Join Date: Sep 2005	But, wont an air core coil have a much higher DCR? I am interested in the 5mH 14Ga SuperQ I have linked to the DCR of the specific part. 14Ga 5mH Air Core Coil I have linked to the DCR of the specific part.XQ The XQ is the air core coil, the DCR is much higher.

7th October 2005, 05:38 PM	#8
ChaS3 diyAudio Member Join Date: Sep 2005	Im sorry but I do not understand why you feel that the specifications of the SuperQ are specified as a power supply. Could you please be more clear or explain? According to the ERSE website when you search for inductance versus dcr of their xq air core coils, a 5mH with that DCR would be a 10Ga wire, this would be a very large and expensive coil compared to the SuperQ.. right? Thanks in advance.

11th October 2005, 08:15 PM	#9
Tweeker diyAudio Member Join Date: Dec 2004 Location: Cincinnati, Ohio	Cross-Over Network; Air Core Inductor Calculator Air cores have less hysteresis and will vaporize long before any saturation whatsoever. You can buy a 10lb spool of 12 gauge magnet wire off Ebay to make 2 5mH inductors for ~$30. .4 DCR. The elimination of the iron core and is easily worth the added resistance.

11th October 2005, 08:21 PM	#10
Tweeker diyAudio Member Join Date: Dec 2004 Location: Cincinnati, Ohio	While silly the 101.5% conductivity claim isnt completely ridiculous, its referenced against the International Annealed Copper Scale (IACS) standard.

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