The one component that you wish you had not bought


Most of us have a component that we spent good money on and then wished that we had not bought.
In my case, it was a Musical Fidelity X-Can V3....which I mistakenly acquired after reading a rave review by
Sam Telling....( yes, I know...that was pretty stupid!). 

What is the one component that you acquired that quickly went back on A'gon?
128x128daveyf
Some massive KR Audio amp, I forget the model number, but it weighed like a 100 lbs and was wide and very deep in terms of dimensions and almost impossible to move. Plus it used very expensive KR Audio tubes, their 300B variant the 842vhd and of course one burned out very quickly. Sold it as soon as I could. Sounded fine when it was running but nothing special to my ears.
Placette Audio Passive.  I am a passive enthusiast, and had been on the lookout for an exceptional passive line stage with the convenience of a remote control.  After reading all of the reviews, it seemed that my long sought-after goal had been realized.  Unfortunately, that was not the case - even a $500 Audio Synthesis Passion far outperformed the Placette.
Miltek Aurora cartridge. Warm and woody. No detail.
Solid silver cables from a great guy. They just weren't as good as cheap 14 gauge mains wire.
CV4004 tubes. Dull as bedamned.
soundlabs. good speakers for certain music, but not all. And I like Motorhead.