Dear All, I had a blow out of DIY naim clone.
There was no speaker protection installed and I fear my speakers have been damaged as well. I do not want to check speakers on another amplifier just in case I ruin that amplifier as well.
Nominal impedance of QA 3050 as per specs sheet is 6 ohm, when I check resistance across terminals it is now 4 ohms. Is this normal? If anyone else has the same speakers would they be kind enough to check the resistance across the terminals.
I have opened up the cross over and there is no obvious damage to it. Also the speakers have no impedance markings on them and they all check as 4 ohm except tweeters which check as 6 ohm.
I would appreciate any guidance for checking or verifying the integrity of speakers
Many Thanks
Sajjad
There was no speaker protection installed and I fear my speakers have been damaged as well. I do not want to check speakers on another amplifier just in case I ruin that amplifier as well.
Nominal impedance of QA 3050 as per specs sheet is 6 ohm, when I check resistance across terminals it is now 4 ohms. Is this normal? If anyone else has the same speakers would they be kind enough to check the resistance across the terminals.
I have opened up the cross over and there is no obvious damage to it. Also the speakers have no impedance markings on them and they all check as 4 ohm except tweeters which check as 6 ohm.
I would appreciate any guidance for checking or verifying the integrity of speakers
Many Thanks
Sajjad
Yes, it is perfectly normal for a nominal 6-ohm loudspeaker to measure 4 ohm DC resistance. Nominal impedance, 6-ohm here, is average (sort of) AC impedance, not DC resistance you are measuring.
Thank you for your guidance. I have to admit I am out of my depth here. Am I safe to assume I should check the speakers with an alternative amplifier ?
Many Thanks