Hi, I hope this is the correct forum for questions like this. I've got a pair of vintage Goodmans speakers and was wondering if I could get some info for them. They are approx 2.5" in diameter and around 5-6ohms impedance. Tried Googling but no luck.
Thanks in advance.
Thanks in advance.
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Goodmans Industries Ltd. supplied speakers for radio and T.V. manufacturers. I would suspect that the speakers you have are from this area of their production and not from their Hi Fi and professional speaker range.
Those look like treble speakers. Often used two at a time along with a large bass unit. Boy, the stories those could tell.
You are showing them front and back, we need a sideways or quite slanted picture showing the **frame/"bell"** , please upload a picture.
The ´point is whether the frame is sealed which indicates a Tweeter or has holes to "breath" in which case it´s a small Radio/TV speaker.
I suspect the former but need confirmation.
I think you mean 5-6 ohm *resistance* , which would mean 8 ohm *impedance*
Thanks.
Those holes were WELL hidden 😉
So they *might* be just "small speakers" or real Tweeters meant to be separated from the rest of the cabinet volume by an "egg" shaped cover or a closed back cardboard tube.
Big expensive magnet (for the speaker size) points to Tweeter use; to clear difference mount them in an improvised baffle, a notebook sized piece of thick carboard will be enough , and connect them to some full range audio source, just keep power below 1W, and listen.
If they sound "relatively" balanced, there is a little Bass, what you would expect from a table radio, they are tiny full range speakers.
Cymbals will sound sort of "tinny".
If they are Tweeters you will have NO Bass and cymbals will shimmer.
IF so equipped and inclined, sweep them with REW or something using an electret microphone, even a $1 capsule is flatter than any speaker, frequency curve will speak the Truth.
Response falling like a brick below 160-250Hz and above 5 kHz?: regular speaker.
Faling below 1500Hz and extending above 10-12kHz?: Tweeter.
Those holes were WELL hidden 😉
So they *might* be just "small speakers" or real Tweeters meant to be separated from the rest of the cabinet volume by an "egg" shaped cover or a closed back cardboard tube.
Big expensive magnet (for the speaker size) points to Tweeter use; to clear difference mount them in an improvised baffle, a notebook sized piece of thick carboard will be enough , and connect them to some full range audio source, just keep power below 1W, and listen.
If they sound "relatively" balanced, there is a little Bass, what you would expect from a table radio, they are tiny full range speakers.
Cymbals will sound sort of "tinny".
If they are Tweeters you will have NO Bass and cymbals will shimmer.
IF so equipped and inclined, sweep them with REW or something using an electret microphone, even a $1 capsule is flatter than any speaker, frequency curve will speak the Truth.
Response falling like a brick below 160-250Hz and above 5 kHz?: regular speaker.
Faling below 1500Hz and extending above 10-12kHz?: Tweeter.