They are an authorized dealer for Sennheiser: https://en-us.sennheiser.com/dealer-locator

These are only shipped by Amazon, they are sold by Buy Top Tech. I'd make sure they are a legitimate retailer for Sennheiser or at least have a decent return policy.

Use promo code HolidayVortex20 to get an additional 20% off and also free shipping for B-stock and pre-owned items. I believe they just added the free shipping today as shipping was ~45 dollars per IEM yesterday.

Great Seller! Good communication and fast shipping. Would highly recommend.

Tidal HiFi or HiFi Family 3mo subscription (via Best Buy) for 1.00, automatically renews at 14.99 or 22.49. https://www.bestbuy.com/site/tidal-hifi-music-3-month-subscription-starting-at-purchase-auto-renews-at-14-99-per-month-digital/6407162.p?skuId=6407162...

If you sign up for their newsletter they send you a promo code for 10/30/50 off 150/350/550. Was able to get an additional 30 dollars off for a total of 419.

Not really a deal, but Monoprice has the Monolith THX AAA 887 Balanced Headphone Amplifier in stock for the regular price of 399. https://www.monoprice.com/product?p_id=39359 This unit was measured by ASR to be similar, if not better than the Massdrop THX AAA 789 and it is available...

Price just dropped to 124.88

Ordered the HD600 from the same deal and just received them today; however, they shipped the HD650. Looks brand new with no signs of wear. Too bad I already own the HD650 and will likely be shipping these back.

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Refurbished Oppo PM3's back in stock:   https://www.oppodigital.com/products.asp?cat=39

There is a 100 dollar Ebay gift card or iTunes gift card for 95 or 80 dollars respectively.   There is also an open-boxed Hifiman HE-560 from Razordogaudio for 659 with 1 year warranty:   http://www.ebay.com/itm/HiFiMAN-HE-560-full-size-Planar-Magnetic-Headphone-AUTHORIZED-DEALER-/201435017525

  If you don't have anything particular in mind, I typically get gift cards (Amazon, Ebay, gas, etc). They have a 50 dollar iTunes gift card for 40 right now and was hoping to stack it with the 20% off. 

Same here, I think this code is used up or expired.   Regardless, Amazon Lightening deals has the Meelectronics Air-Fi Matrix2 for 69.99 til 1PM EST:   http://smile.amazon.com/dp/B00DOP3NPW

New Sennheiser Momentum On-Ears at Woot.com for 69.99 (+5 for S&H)   http://electronics.woot.com/