Today I received a balanced cable for my HD599. It shines with my A & K SR25, truly excellent sound. The volume is of course a lot louder but, to my ears it also sounds better than the 3.5
Sennheiser HD 599 SE Review: Killer Open-Back Headphones on a Budget
Review: Sennheiser HD599 - One Up! - Headfonia Reviews
Sennheiser HD 599 Review
Sennheiser HD 599 SE Review: Killer Open-Back Headphones on a Budget
In the Sennheiser HD 650, audiophiles will experience truly unique natural sound. With sound this good, long concerts in the comfort of your home are a certainty, so the Sennheiser HD 650 also sets standards in comfort and convenience. The Sennheiser HD 650 is a genuine masterpiece, which will satisfy even the most demanding listener.
Sennheiser HD 650 Over-Ear Headphones - Silver
Sennheiser HD599 - first impressions. Headphone Reviews and Discussion
Sennheiser HD 599 Special Edition, Review
The open back HD 599 delivers impressively natural spatial performance. Topping Sennheiser's 500 series, the full sized premium headphone offers near-audiophile levels of sound quality and exceptional wearing comfort thanks to the large ear cups and soft replaceable ear pads.
Sennheiser HD 599 Around-Ear Headphones
Sennheiser HD 599 Headphones Review (Hardware) - Official GBAtemp Review
The open back HD 599 delivers impressively natural spatial performance. Topping Sennheiser's 500 series, the full sized premium headphone offers near-audiophile levels of sound quality and exceptional wearing comfort thanks to the large ear cups and soft replaceable ear pads.
Sennheiser HD 599 SE Around Ear Open Back Headphone - Black