| Author |
Topic: Another Speaker Ohm Question |
Danny Letz
From:
Old Glory,Texas, USA 79540
|
Posted 3 Apr 2019 4:36 am |
|
| I have a Peavey Black Widow 1501. It has a neo magnet on it. The little white Peavey tag on the basket by the terminals says 4 ohm. The big sticker on the neo magnet has 8 ohm on it. Am I I right in assuming the magnet doesn’t affect the ohms and that it is still a 4 ohm speaker? |
|
|
 |
Jerry Overstreet
From:
Louisville Ky
|
Posted 3 Apr 2019 5:00 am
|
|
| Yes, you are correct. The impedance is determined by the voice coil in the speaker basket. Mike has stated previously that the tag on the mag was in error. It has no impedance. |
|
|
|
Tommy Boswell
From:
Virginia, USA
|
Posted 3 Apr 2019 5:05 am
|
|
| I have one like that too. Started life as a 1501-4 with original heavy magnet. I bought one of the Neo magnets recently sold on the Forum that had 8-ohm label on it. But the magnet does not determine ohms, so the speaker is still a 4-ohm speaker. The magnet can be used on a 4-ohm basket or an 8-ohm basket. |
|
|
|
Danny Letz
From:
Old Glory,Texas, USA 79540
|
Posted 3 Apr 2019 8:16 am
|
|
| Got it. Thanks, I must have missed the part about Mike Brown or my feeble memory failed me again. |
|
|
|
George Kimery
From:
Limestone, TN, USA
|
Posted 3 Apr 2019 8:21 am speaker ohm question
|
|
| Just went through this issue with GD Walker recently when I got my Stereo Steel cabinets. The JBL speakers had 16 ohm stickers on them and an odd model number. He said it doesn't matter how the speakers he used are labeled, when he re-cones them, they become 4 ohm D-130's. I checked them with my meter, and they are indeed 4 ohm speakers. To be sure, check them with a meter. One of those cheap $3.00 Harbor Freight meters should work just fine, assuming it has ohms setting on it. |
|
|
|
Danny Letz
From:
Old Glory,Texas, USA 79540
|
Posted 3 Apr 2019 8:31 am
|
|
| Good point George. I think even I could do that. |
|
|
|
Jim Sliff
From:
Lawndale California, USA
|
Posted 23 Apr 2019 4:08 pm
|
|
Every player who is going to swap speakers around should own a decent multimeter to measure the DC resistance of the speaker (or speaker cabinet).
It's best NOT to rely on any stickers or printing on the frames or magnets, especially on older speakers. If they have been reconed they could have been changed to a different impedance.
Noe - the DC resistance (in ohms) will always read slightly less than the speaker's actual impedance, but is close enough to figure it out. 8 ohm speakers usually read 7.3-7.6 ohms; 4 ohm 3.2-3.5 ohms or so.
_________________
No chops, but great tone
1930's/40's Rickenbacher/Rickenbacker 6&8 string lap steels
1921 Weissenborn Style 2; Hilo&Schireson hollownecks
Appalachian, Regal & Dobro squarenecks
1959 Fender 400 9+2 B6;1960's Fender 800 3+3+2; 1948 Fender Dual-8 Professional |
|
|
|
