Why does my system now have shrill top end.


The equipment in my system (listed below) has not changed but I now find on both CD and Vinyl a high end shrillness to the sound (treble is very harsh) that has become very annoying, especially at high volume levels. I have no idea why this happened all of a sudden.

Endevour E-3
Pass 30.8
Pass XP 20
Esoteric K01x
Linn LP12 (Ortofon Black cartridge)
Linn Linto Phono Preamp
PS Audio P5 (Amp plugged in directly to wall)
JL Audio F112 v2 sub
OCOS Speaker cable (15 feet)
Pass XLR interconnect (Preamp to Amp)
Harmonic Technology Cable Magic Link (not current version). RCA termination

Any ideas?
proacman
All I can say is what worked for me...
dont want my advice, don’t take it.

liquidsky
3 posts                                                                               12-02-2017 9:45am

That may be true in your case. More than likely with poorly designed audio equipment. Pass Labs on the other hand is well designed audio equipment.

At least here in the USA GFCI protection in residential dwelling units is here to stay. At present, Kitchen above counter top outlets, Laundry room outlets, bathroom outlets, garage outlets, outside receptacle outlets, receptacle outlets in unfinished areas, is required per NEC code. (Depending if the AHJ, Authority Having Jurisdiction, adopted that provision of the NEC. 2002, 2005, 2008, 2011, 2014)

AFCI protection is now required on all 120V 15 and 20 amp lighting and receptacle outlet circuits in new homes built pretty much after 2015. (Depending if the AHJ, Authority Having Jurisdiction, adopted that provision of the NEC. 2002, 2005, 2008, 2011, 2014).

 Slowly NEC is expanding where GFCI protection is required. With improvements in dependability/reliability made for combination AFCI/GFCI circuit breakers it is only a matter of time before NEC will require all 120V 15 and 20 amp lighting and receptacle outlet circuits be AFCI/GFCI protected.


Your welcome, Jim. Looking further at the Linto specs, though, based on the specified input loading of "150 Ohms in parallel with 4.7nF " (i.e., 4700 pf) it would seem clear that the 2M Black (which is a moving magnet design) is not the cartridge that is being used, and presumably what is being used is an LOMC. So let’s wait for further word from the OP on that.

Best regards,
-- Al

Does anyone else use your equipment? I've heard (and seen) situations in which the owner's children have shown off the system to their friends...sometimes with dyer consequences (causing a tweeter to be blown back out of it's magnetic field, etc). Just curious as it seems almost everything else has been accounted for. Otherwise...any utility work performed in the area of your home? Best of luck!. 

@kosst _amojan

You seem to have some relevant advice to give the OP, and that's great, but please refrain from the insulting manner, in which you address others, based on your disagreement with them. This is supposed to be a civil environment.