GuyIsDamGood Posted April 18, 2023 Share Posted April 18, 2023 Hello I was watching a video on the Klipsch RF-7 iii Tower Speakers. I believe someone said that the speakers are really 4-ohms. Anyone know if that is basically true? Thank you Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 18, 2023 Share Posted April 18, 2023 34 minutes ago, GuyIsDamGood said: Hello I was watching a video on the Klipsch RF-7 iii Tower Speakers. I believe someone said that the speakers are really 4-ohms. Anyone know if that is basically true? Thank you No, certenly not , they´re 8 Ohm Speaker Quote Link to comment Share on other sites More sharing options...
babadono Posted April 18, 2023 Share Posted April 18, 2023 they have impedance dips way below 8 ohms, they need an amp with Oomph....IMHO. Are they 8 ohms nominal?.......umm...OK 2 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 18, 2023 Share Posted April 18, 2023 2 minutes ago, babadono said: they have impedance dips way below 8 ohms, they need an amp with Oomph....IMHO. Are they 8 ohms nominal?.......umm...OK @GuyIsDamGood owns a Rotel RB-1582 MK II with 200W / 8Ohm per channel , that fits , and of course there ´re impedance dips like in every speaker 🙂 Quote Link to comment Share on other sites More sharing options...
GuyIsDamGood Posted April 19, 2023 Share Posted April 19, 2023 MicroMara and babadono; thanks for the help/info. (I'm aware (understand) of the speaker impedance-drops. Yesterday; I've watched many videos on Speaker Impedance-drops (Audioholics videos are best). alright. The Klipsch RF-7 iii Tower Speakers impedance Can drop below 8 - 6 ohms. (yesterday; I played a few bass-tracks. The RF-7 iii Tower Speakers delivered really-nice bass response) - it was 51° in the room. The Rotel RB-1582 Mk ii was Warm but not hot during play-back. 2 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 19, 2023 Share Posted April 19, 2023 The minimum watts per channel can be 50 SS. A while back a member used a modern Teac with decent enough sound, and was quite pleased. However, was warned about driving too hard with the lower wattage so. Seems the 7 series can handle impedence dips quite well, as it should. 1 Quote Link to comment Share on other sites More sharing options...
Zen Traveler Posted April 20, 2023 Share Posted April 20, 2023 On 4/18/2023 at 1:41 PM, GuyIsDamGood said: Hello I was watching a video on the Klipsch RF-7 iii Tower Speakers. I believe someone said that the speakers are really 4-ohms. Anyone know if that is basically true? Fwiw, the original RF-7s benifited from power sources rated to drive 4 Ohm speakers, esspessially if used in a multichannel configuration and/or played loud. On 4/18/2023 at 2:17 PM, MicroMara said: No, certenly not , they´re 8 Ohm Speaker Hmm...For some reason I thought because of the explanation below in Europe they couldn't be labeled 8 Ohm: On 4/18/2023 at 2:38 PM, babadono said: they have impedance dips way below 8 ohms, they need an amp with Oomph.... Fwiw, both the first couple of generations had a couple of dips below 4 Ohms. On 4/18/2023 at 2:38 PM, babadono said: Are they 8 ohms nominal? I believe Klipsch calls it "8 Ohm compatible." 😎 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 20, 2023 Share Posted April 20, 2023 1 hour ago, Zen Traveler said: Fwiw, the original RF-7s benifited from power sources rated to drive 4 Ohm speakers, esspessially if used in a multichannel configuration and/or played loud. Hmm...For some reason I thought because of the explanation below in Europe they couldn't be labeled 8 Ohm: Fwiw, both the first couple of generations had a couple of dips below 4 Ohms. I believe Klipsch calls it "8 Ohm compatible." 😎 True...that nominal th...ing Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted April 21, 2023 Share Posted April 21, 2023 On 4/18/2023 at 3:17 PM, MicroMara said: No, certenly not , they´re 8 Ohm Speaker At what Frequency ?? Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted April 22, 2023 Share Posted April 22, 2023 It is normal for impedance to vary with music. Dips can below 3 or up to well above 8. Most amp will push the 7"s without a problem. You will cause not only speaker damage but, damage to your ears. On my tube amp in a 20x20 room open to other spaces I rarely exceed 3 watts. 2 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 22, 2023 Share Posted April 22, 2023 22 hours ago, the real Duke Spinner said: At what Frequency ?? According to the official tec specs they´re 8 Ohm nominal speaker as we know . I have a impedance measurement graphic from a german audio cinema forum in my personal data showing this results. Kindly built your own opinion 🙂 1 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 22, 2023 Share Posted April 22, 2023 Forgot to tell you what I think about the above Impedance graphic ..every good 8 Ohm SS Amp can handle these dips without any problems, maybe some tube amps can´t handle these impedance dips . Quote Link to comment Share on other sites More sharing options...
82 Cornwalls Posted April 22, 2023 Share Posted April 22, 2023 7 hours ago, MicroMara said: Forgot to tell you what I think about the above Impedance graphic ..every good 8 Ohm SS Amp can handle these dips without any problems, maybe some tube amps can´t handle these impedance dips . Why would you think they may present a problem to tube amps? 2 1 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 22, 2023 Share Posted April 22, 2023 1 minute ago, 82 Cornwalls said: Why would you think they may present a problem to tube amps? a powerfull push and pull or single ended tube amp ( for example 20 W / 8 ohm ) can handle the impedance dips without any problems , may a tube amp with 3 to 5 watt can get problems. These will shut off on higher volume levels. Quote Link to comment Share on other sites More sharing options...
82 Cornwalls Posted April 22, 2023 Share Posted April 22, 2023 16 minutes ago, MicroMara said: a powerfull push and pull or single ended tube amp ( for example 20 W / 8 ohm ) can handle the impedance dips without any problems , may a tube amp with 3 to 5 watt can get problems. These will shut off on higher volume levels. Why would a tube amp shut off? I have never heard of such a thing. FWIW I have hooked up four 6 ohm drivers in parallel to a 2 watt set, it never shut off. 3 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 22, 2023 Share Posted April 22, 2023 7 minutes ago, 82 Cornwalls said: Why would a tube amp shut off? I have never heard of such a thing. FWIW I have hooked up four 6 ohm drivers in parallel to a 2 watt set, it never shut off. as long as 6 ohms is the lowest impedance dip , they don´t shut off , impedances below 4 Ohms can cause a shut off. Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 22, 2023 Share Posted April 22, 2023 The RF 7 MK II has impedances below 4 Ohms as you can see here Quote Link to comment Share on other sites More sharing options...
82 Cornwalls Posted April 23, 2023 Share Posted April 23, 2023 2 hours ago, MicroMara said: as long as 6 ohms is the lowest impedance dip , they don´t shut off , impedances below 4 Ohms can cause a shut off. 4 x 6 ohm drivers in parallel is 1.5 ohm nominal and lower in dips. What does shut off mean? Protection circuitry? Never owned a tube amp with that. Do you actually have any tube amp experience/knowledge? 1 Quote Link to comment Share on other sites More sharing options...
MicroMara Posted April 23, 2023 Share Posted April 23, 2023 7 hours ago, 82 Cornwalls said: 4 x 6 ohm drivers in parallel is 1.5 ohm nominal and lower in dips. What does shut off mean? Protection circuitry? Never owned a tube amp with that. Do you actually have any tube amp experience/knowledge? There are three ways to connect speakers together: Parallel connection, series connection or the combination of both. If the loudspeakers are connected via a crossover, the load of the crossover apply. So what shell be the sense of your posts if you´know everything so well ? And yes I got tube amps at home . Kindly finish any reply now ! I´m no longer willing to communicate at this level. Quote Link to comment Share on other sites More sharing options...
stormin Posted April 23, 2023 Share Posted April 23, 2023 I'll stick with my 1200 wpc @8ohms / 1600 wpc @4ohms ss monoblocs. What dips? 😁 Quote Link to comment Share on other sites More sharing options...
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