Good evening guys, my friend asked me to try my AP20 on his Kef speakers. Kef impedence is 4 ohm. I don't remember if our ampli is designed to work with 4 ohm speakers. I am ising NVA speaker cables.
kef 103/4 reference from the 90's.
Thanks in advance
4 ohm speakers?
- savvypaul
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Re: 4 ohm speakers?
It depends on the shape of the curve - how long it is down around that number, and at what frequencies.
Can you post the plot for it?
Can you post the plot for it?
- karatestu
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Re: 4 ohm speakers?
If that 4 ohms is the nominal figure quoted by the manufacturer then it is likely to dip even lower than 4 ohms.
DIY FREE ZONE
- savvypaul
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Re: 4 ohm speakers?
Yes, but if it is in the high frequencies it will be benign to NVA amps. If it is in the low frequencies, the NVA amps will not like it.
- savvypaul
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Re: 4 ohm speakers?
Required power: 50 to 200 watts.
The AP20 is around 35 watts.
Complex looking crossover.
Not what NVA is designed for.
- savvypaul
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Re: 4 ohm speakers?
Keep a check on the temperature of the amp (place your hand under and along the acrylic base). NVA amps should run moderately warm, at the very most. If it is too hot to touch, it's too late.
I cannot see the AP20 being a good match for those KEFs, regardless.
I cannot see the AP20 being a good match for those KEFs, regardless.
- Latteman
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Re: 4 ohm speakers?
Don’t risk it
Analogue Source -
Denon DP47f; AT-VM95SH- RigB 9
GL-59; ARB uni pivot; AT- Signet mc
Nva phono mm/mc
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources
Denon DP47f; AT-VM95SH- RigB 9
GL-59; ARB uni pivot; AT- Signet mc
Nva phono mm/mc
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources