Now it's promotional price is $55 with free shipping via postal air parcel
2pcs is $50/pc with free shipping
We developed this RCA-->XLR transformer for our DIY-Kits, it's totally new and unused.
It transform unbalanced signal (RCA input) to real balanced signal(XLR output).
We used high quality components to ensure the real balanced signal output.
Main Chip: DVR134
DC: 24V (22v-26v), 10-20mA
Size: 80 x 50 mm
Also, there are some other cost-effective Monoblack 550w amplifiers, all free shipping:
A000 (550w x 1/ch), $299---http://app.audiogon.com/listings/b-o-icepower-125asx2-a000-monoblock-550w-se-ampli
A100B (550w x 1/ch), $309---http://app.audiogon.com/listings/b-o-icepower-125asx2-a100-monoblock-550w-se-ampli
A100P (550w x 1/ch), $359---http://app.audiogon.com/listings/icepower-125asx2-a100p-mono-block-550w-rca-xlr-input
A200B (550w x 2/ch), $589---http://app.audiogon.com/listings/icepower-125asx2-a200-mono-550w-x-2-ch-se-amp
A200P (550w x 2/ch), $669---http://app.audiogon.com/listings/icepower-125asx2-a200-mono-550w-x-2-ch-se-amp
(Note: A000 and A100B run in Mono mode only via XLR input, but A100P via both XLR and RCA inputs.)