Whirlwind HATT- AES Headphone Amplifier, Made in USA The Whirlwind HATT-AES is an active headphone amplifier that converts a digital AES3 stream into a high fidelity, low distortion stereo headphone signal optimized for modern 32 Ohm headphones. Sample rates from 32 kHz to 192 KHz are recognized by the HATT-AES D/A converters. Features include an analog 3.5mm TRS stereo input jack, analog signal present LEDs, and a buffered AES loop-thru output. _____________________________________________________________________________ Echo tone Music is a long time E-commerce Audio and Musical instrument dealer since 1998. We take pride in selling quality gear for musicians, sound engineers and broadcast applications. Shipping --Items are well packed and shipped USPS, FEDEX and UPS. Items purchased on Friday may not ship till monday. We want to get your item out as fast as we can. Returns/Refunds- If there is truly a manufacturing defect a return tag will be provided, otherwise customer pays for return shipping costs. Refunds are for the product price only and will be less all shipping charges and 15% restocking fee if the item was delivered with no defects. If the item was listed as free shipping then the cost of the shipment will be deducted. Gear returned with out all its original packaging, warranty cards and accessories or that shows signs of wear from use, will be subject to an additional restocking fee. This item is now used and it would be unfair to resell to another customer as new. Happy customers, that's music to our ears!