I recently had my Sennheiser HD 600 and 650 headphones recabled with differing types of his Dragon cabling as well as getting 1/4" to 1/8" adaptors so that I can use the Sennheisers either with a stationary or portable headphone amplifier. It was not cheap, but the work on the fittings is uniformly excellent. Only good quality materials were used. Most importantly, it made those Sennheisers sound like good headphones for the first time. With the exception of Stax, I think that I have the top models available of every major headphone (and earphone) manufacturer. I could never understand why listeners kept talking about how great Sennheiser cans sound. I thought the the sound always seemed veiled. The Denons, Ultrasone's and Grado's never sounded like they were not performing at their best. Since I got the Senns recabled, I think that they sound marvelous. The difference is not subtle. It makes me wonder why Sennheiser sells their cans with such crappy cables. Although, enthusiasts may want to choose their own upgrades and the recabling really does add a significant cost to the end price. It is worth it to me.
Additionally, it appears to me that Drew will be able to provide upgraded cables for my AKG's, Grado's, Beyerdynamics, Ultrasone's, Denons, and Audio-Technicas. I think that the open ended 1000 and 2000 serious Audio-Technicas are easily worth recabling. I uniformly prefer them to the closed style headphone. The AKGs already sound much better with a tube amplifier. I have not recabled them yet, but the tube sound really improved their performance. With recabling, I am hoping that the AKG 701 can be turned into really good headphones.
I can also tell you that the Qables portable headphone amplifier is a quality product that is classically designed. It gives a wonderful sound experience. It's styling is excellent and it works for a long time on a charge. The sound seems quite nuetral and transparent. It is a bit pricey--particularly since the cable to charge the unit is an additional $25.00, but it is a very good product.
Last, but not least, Drew gets that Paypal invoice to you as a client quickly and the product is shipped quickly and efficiently. I know that I will certainly be using Moon Audio in the future.