1 waxhead 9 years ago Guitar used - 2004 Gretsch Jet Firebird 6131. PUP switch was kept in mid position for all recordings (ie both PUPs activated). Tone in mid position, PUP volume dials maxed. Amp used was a Mesa Boogie Express 5:50. Has 6L6 power tubes. Runs on 5w and 50w and has 4 amp voices. Amp EQ settings were the same throughout - used 5w in Class A, spring reverb engaged at 11 oclock. Distortion used was an MI-Audio Crunchbox pedal run thru the clean channel of the Mesa. Mic used was a Sennheiser e906. Audio interface - M-Audio Fast Track Ultra. DAW was Sonar 8.5.3. Recorded tones are fully raw with no post EQ or compression. Both mp3's are 7-8 MB.1st mp3 is with the stock Gretsch HS Filtertrons.http://www.mediafire.com/?j...2nd mp3 with TV Jones Classic in neck and TV Jones Classic Plus in bridge position.http://www.mediafire.com/?t...I chose music you'll probably know to showcase the differences in clean, OD and distortion tones of both PUPs. These were all quick and nasty first takes. You guys decide for yourself what the differences between the PUPs are.Not sure how much of this will be audible on the mp3's but.... IMO The TV Jones PUPs are brighter & crisper than the HS Filtertrons. TV Jones have slightly better string articulation. The recording levels in the DAW showed they're also higher output. The TV Jones are more prone to give an ice-picky tone when distorted and I'll need to make some amp EQ adjustments to counter it. The HS Filtertrons are slightly darker & mellower. The TV Jones create bigger differences between the 3 PUP settings than the HS Filtertrons so they do extend versatility a little. The bridge PUP only with the TV's is brighter and hotter than with the HS Filtertrons. The neck PUP only is fatter My opinion - not much in it really but I do prefer the TV Jones so it's money well spent to swap them in IMO. The HS Filtertrons are still fantastic PUPs though IMO.Hope this helps people decide whether or not the upgrade is worth it in Jet series guitars. Comments please.