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Has there been any inexpensive item that enhanced your system's sound?

For me it was an inexpensive power cord that was laying around for years, a Pangea AC9.  I have it connected to my Yamaha A S2000.  I've tried the stock cord on the Yamaha and then some of my other cords, (Wireworld, VH Flavor 4, Acronlink/Oyaide custom cord and a MAC). I've had lots of amps and integrated amps over the years, and this is the first time the Pangea contributed to making better sound. It surprised me because I had tossed it aside and forgot about it.  Power cord performance is such a crap-shoot and dependent on so many other variables in the audio chain.  Any inexpensive item you've come across that enhanced your system's sound? 
foster_9
jtcf's avatar
jtcf
303 posts
 
I fastened spruce boards on top of metal speaker stands cut to the size of the speaker bottoms.Sounds so much better when they are supported firmly.Cost$0.00
brayeagle
206 posts
 
Like Elizabeth: Retired

My Reed Sound Level/Pressure Meter. Really helped set up my speakers to best possible position and rearrange furniture to reduce standing wave reflections.

For goeff: Quit flying Immelmans as it disturbs vestibular perception.
wolf_garcia
4,650 posts
 
Vibrapods under speakers on a suspended wood floor...mo bettah all day.
geoffkait's avatar
geoffkait
14,147 posts
 
Freezing things in the home freezer. CDs, LPs, Blu Ray, CD players, headphones, cables, power cords, what have you.
elizabeth
6,726 posts
 
Refrigerator magnetic dry erase board... Under the CD player. (on shelf). I have been delighted to have Earl Hines play piano in my living room for several hours today. No on the stereo, in my living room.                
If you have any small crystals.. a baggie of them on the magnetic mat below the transformer in the CD player, and maybe below the main decoding chips.     
$20 for the mat. Crystals ...?               
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