I’m imagining that the hard part will be determining the value of the inductors.
Many decent multimeters can do inductance and certainly resistance, and can be as low as around $50, you’ll work it out.
Cheers George
System phenomenon when playing loud
Great Friday Greetings All,
I'm experiencing a phenomenon which I’ve never encountered before. When cranking some tracks to an admittedly on the loud side level, sometimes the highs and mids become suddenly muted. Not gone altogether, but very muted. It occurs like a switch being flipped, no fade-out, it happens in an instant. My system is:
Triangle Volante 260 speakers
Parasound JC-1 mono block amps
Sonic Frontiers Line 1 preamp
Recent purchases are a Panamax power conditioner and a Yamaha Cd-S2100 CD player. Please note, I have experienced this phenomenon several times before acquiring the conditioner and the CD player, so it’s not those. Can anyone guess if it’s the preamp, the amps, or the speakers that’s the culprit?
When I turn the volume down, the upper spectrum returns like nothing happened, and I can turn it back up some, but I’ve been shy about going back to the level it was at when the phenomenon occurred. There are no attendant noises the happen with the suck-out, and there doesn’t appear to be any distortion when playing at that level, and I have listened for it. It’s not like the amps are clipping, audibly. The tracks that this has occurred on are pretty intense rock tracks.
Puzzled, I think I’ll have a Martini. Any thoughts appreciated,
Dave
I'm experiencing a phenomenon which I’ve never encountered before. When cranking some tracks to an admittedly on the loud side level, sometimes the highs and mids become suddenly muted. Not gone altogether, but very muted. It occurs like a switch being flipped, no fade-out, it happens in an instant. My system is:
Triangle Volante 260 speakers
Parasound JC-1 mono block amps
Sonic Frontiers Line 1 preamp
Recent purchases are a Panamax power conditioner and a Yamaha Cd-S2100 CD player. Please note, I have experienced this phenomenon several times before acquiring the conditioner and the CD player, so it’s not those. Can anyone guess if it’s the preamp, the amps, or the speakers that’s the culprit?
When I turn the volume down, the upper spectrum returns like nothing happened, and I can turn it back up some, but I’ve been shy about going back to the level it was at when the phenomenon occurred. There are no attendant noises the happen with the suck-out, and there doesn’t appear to be any distortion when playing at that level, and I have listened for it. It’s not like the amps are clipping, audibly. The tracks that this has occurred on are pretty intense rock tracks.
Puzzled, I think I’ll have a Martini. Any thoughts appreciated,
Dave
Showing 3 responses by georgehifi
Looks like they are not opposed to using iron core chokes to save some money. These could saturate when "cranked up loud" as you put it. http://www.hifishock.org/galleries/speakers/triangle/_cache/altea-esw-2-triangle-280x196.jpg http://www.hifishock.org/galleries/speakers/triangle/antal-ex-2-triangle.jpg http://www.hifishock.org/galleries/speakers/triangle/altea-ex-2-triangle.jpg If they were mine and I experienced the same problem, I would replace them with air core chokes of the same inductance and impedance, if you can find the same, you can get something a bit higher in inductance that’s close to the same impedance and de-wind it down to the right inductance. I did the same with some Yamaha NS-1000X or was it B&W801? long time ago, and the difference was very noticeable for the better when "cranked" up loud Cheers George |
This can happen very much so if the xover in the speakers are using iron core instead of air core inductors, they are cheaper but can saturate at high power and cause compressive effect of the dynamics, same goes for the driver voice coils when they get hot. BTW: your amps JC1's are fine, they are not the problem. Cheers George |