@rodman99999 great article thanks for that.
15 ohm speakers yea or nay?
I just bought Falcon speakers that are 15 ohms. I have Harbeths that are 6 ohms. Both have the same sensitivity rating of 83db. I am using both with the same tube amps.
What has me scratchin’ my head is that the Falcons are much louder with the volume set the same on my preamp.
Any opinions on why a 15 ohm speaker would be that much different than a 6 ohm speaker with the same sensitivity specs?
THX
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@yogiboy, how do the Q7 compare to the P3. Which crossover did you go with? |
Maybe the Falcons play louder then the Harbeths because a 16 Ohm woofer has a lighter and thinner voice coil then an 8 Ohm woofer. So the Falcons have higher, efficiency, just guessing. 😎 Mike
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In the 1950’s all amplifiers were tube, and many loudspeakers 16 ohm (nominally). The move to solid state amps and lower impedance loudspeakers at the same time (mid-to-late 60’s) was not a matter of coincidence. One reason the QUAD ESL sounds better with tube amps is because of it’s insane modulus of impedance. Nominally 16 ohm, but up to 32 ohms at low frequencies, down to 1 ohm at high. Used with a typical tube amp (with their relatively high output impedance, and resultant frequency response deviations), the ESL is missing high frequencies, used with solid state missing bass. |
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