Home » Audio » Thermionic Emissions » Hexfreds
Hexfreds [message #8398] Sun, 08 August 2004 11:15 Go to next message
Manualblock is currently offline  Manualblock
Messages: 4973
Registered: May 2009
Illuminati (13th Degree)
To all; This weekend I replaced the stock rectifier diodes in my A.E.S. Pre-amp with Hexfreds. It's a mod offered by A.E.S. for 60$. That may appear pricey but they include wire(pure silver) and a terminal strip. It was somewhat of a pain in the rear due to very tight tolerances in the circuit. I really had to squeeze some of the leads in there. And soldering in such tight quarters ain't easy. However the mod is done and it has made a nice difference in the sound.
What I noticed right off is the sound is decidedly smoother; ie.,less mettallic sounding and more musical. The bass is deeper with more body and low notes are clearer and more easily distinguishable from each other. Clarinet has a little more woody tone and bass drum has less of that one-note character; not a huge difference but definately worth 60$ and 2 hours of work.
Female voices have a little less of that back of the throat sound and more of a full-bodied breath with slightly less sibilance quality. On Cassandra Wilson's album "Blue Light Till Dawn", there is a couple spots in the cut "I Can't Stand The Rain", where her voice transitions from a whisper into a falsetto an octave higher. This would sound slightly strident prior to the change. It's smoother and gentler with the mod. Highs seem a bit more defined with a natural attack instead of that artificial snap some recordings seemed to exhibit before the change.
I never had a/b'd the Hexfreds in any piece before this so I am pleasantly surprised. While the differences are not huge they are noticeable and enjoyable. Recommended!J.R.

Re: Hexfreds [message #8401 is a reply to message #8398] Mon, 09 August 2004 13:34 Go to previous message
Ranier is currently offline  Ranier
Messages: 10
Registered: May 2009
Chancellor
Good info. I'll definitely give hexfreds a try.
Ranier

Previous Topic: ASL Tulip amp mods
Next Topic: tube tester
Goto Forum:
  


Current Time: Thu Nov 28 17:07:45 CST 2024

Sponsoring Organizations

DIY Audio Projects
DIY Audio Projects
OddWatt Audio
OddWatt Audio
Pi Speakers
Pi Speakers
Prosound Shootout
Prosound Shootout
Miller Audio
Miller Audio
Tubes For Amps
TubesForAmps.com

Lone Star Audiofest