Colin,
Measuring speaker impedance with an Ohm meter doesn't give you an accurate
reading because an ohm meter measures resistance, not impedance, which is a
combination of resistance and reactance.
Steve
----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, September 05, 2007 12:53
Subject: Re: OT stereo question
> most home audio amplifiers are fine down to four ohms.
> If you can find the manual for your sherwood, it'll let you know what the
> minimum impedance load should be per channel.
> Its an interesting fact that speakers rated at 8 ohms often check out with
> an ohm meter at an ohm or two less then their rated impedance.
> Sometimes this is because while in operation, they are rated at 8ohms or
> show an 8ohm load to the amplifier, but when nothing is being sent into
> them, they are slightly less.
> Then you get crap speakers that are rated at 4 or 8 ohms, and show a 32
> ohm
> impedance...I bought a 12 inch sub rated at 1000 watts from a liquidation
> depot and when i finally got my ohm meter and tested the impedance of the
> speaker, it showed 32 ohms....not terribly good for a 1000 watt car
> amplifier rated at 4 ohms.
> I guess that's what happens when you only pay 15 bucks for such an item.
> 73
> Colin, V A6BKX
> ----- Original Message -----
> From: "Robert Clark" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, September 04, 2007 8:19 PM
> Subject: OT stereo question
>
>
>> Well I hope I did the right thing, ordered a Sherwood stereo
>> receiver.
>> Quewastion I ahve is, I have 2 pairs of speakers which are 6 ohms.
>> Should
> I
>> bother with them, get matching transformers, or look for 8 ohm speakers?
>>
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