075 dcr low but plays fine.

[scott fitlin]

The only thing I can think of is the guys meter calibration is off, and isnt a correct reading.

[kingjames]

The only thing I can think of ois the guys meter calibration is off, and isnt a correct reading.

My feelings exactly Scott, I asked him to recheck with another meter.I'm waiting for the new readings.

[hjames]

The only thing I can think of is the guys meter calibration is off, and isnt a correct reading.

Yeah - have him pop a new battery in that meter!
That kind of reading must be some kinda fluke ...

[louped garouv]

I thought flukes were good meters

[kingjames]

I thought flukes were good meters

You're really on a roll today.

[kingjames]

He just had them checked by another shop and the dcr's are 2.0 ohms per speaker. My question then is, can the ohm's be this low and still play fine? These have now been checked by 2 shops with one giving a sine wave test and they sound great.A,b tested them with another set and no difference in sound or volume level.

Dumbfounded to say the least!

[edgewound]

Either there is shorted turns in the voice coil, or a terminal lug is shorted to the top plate....maybe through some corrosion built up on the ancient structure.

Have your tech do a continuity test from both leads directly to the top plate. It should read open. if there is continuity to the top plate, there is something wrong.

I bet they don't sound fine for 075's. A sweep test with normal test voltage will kill small animals...and your ears.

2 ohms DCR is just wrong. It should range 5.7-6.7 to be within factory spec.

[Earl K]

- If these coils do prove to be partially shorted ( after following Edgewounds' advice on measuring the terminal lugs ) / then take the drivers back and resell them as "cores" in need of voice-coils .
- Chock this all up to experience.

<. Earl K

[kingjames]

- If these coils do prove to be partially shorted ( after following Edgewounds' advice on measuring the terminal lugs ) / then take the drivers back and resell them as "cores" in need of voice-coils .
- Chock this all up to experience.

<. Earl K

If I have learned anything from this is that a dcr test is crucial and not like most people who say it isin't. In this case the ears are not hearing it all. These were checked by 2 shops with both shops saying they sounded fine.

[scott fitlin]

Yeah - have him pop a new battery in that meter!
That kind of reading must be some kinda fluke ...

OR, the guy isnt using a Fluke meter?

Fluke always gives me a good reading!

[hjames]

OR, the guy isnt using a Fluke meter?

Fluke always gives me a good reading!

Sure - I got my classic fluke at home too - but when the battery dies the meter brand doesn't matter any more - it might as well be from Mannny, Moe, and Jack!

[scott fitlin]

Yeah, its true, weak batteries give wrong readings!