What impedance tap choices do your tube amps have?
Bearing in mind some are internal: which are you using?
I hate to type, thus: see if any of this helps-
https://www.dhtrob.com/overige/tubefriendly_lsp_en.php
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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Efficiency and sensitivity are not the same. My speakers are JBL 4435 monitors and have a sensitivity of 96 dB SPL @ 1 watt @ 2 meters @ 8 Ohm and have an efficiency of 2.7%. See the JBL manual below specifications section, last page. As for the difference between sensitivity and efficiency see the link below JBL technical note first page section C. All three specifications, impedance, sensitivity and efficiency are important and must be looked at together to better understand their meaning and correlation to what you hear. Also, amplifiers produce more distortion in lower impedances then higher impedances. Hope that helps. 😎 Mike http://www.lansingheritage.org/html/jbl/specs/pro-speakers/1984-4430-35.htm http://www.lansingheritage.org/html/jbl/reference/notes/tech1-3a.htm http://www.sengpielaudio.com/calculator-efficiency.htm @rodman99999 +2. Great article. |
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