XIaudio is a new brand which is created by a guy who isn't new at all when it comes to high end audio. XIaudio is the brain child of Michael Xiao, a person who was behind the infamous Lotoo Paw Gold, a dap that shall remain a true DAP reference for many of DAP enthusiast for a long time. The brand currently has three products, one of which is ready for Prime time and two of which due in a near future. For now They are: Formula S: (3-4 K USD I think) Their current flagship, designed closely for Abyss 1266. Broadway: (2099 USD) Class A, fully discrete balance in/out Broadway S: (1299 USD) Class A, fully discrete single in and balance out/single ended out. I dont have a lot of detail at this stage about all the amps but below are the detail that I received regarding the two amps that I have a very deep interest and I have the permission to share the specs for. ================= Broadway : Full Balanced, Class A design with more output power, and is made for the headphones which are hard to drive. For example Abyss 1266phi, Abyss Diana, Hifiman HE1000, and Sennheiser HD800 which are High impedance or/and Low in sensitivities. MSRP : USD 2,099 Input : XLR Output : XLR 4 pins and 4.4 mm Battery life: 6 hours Broadway S : Single End, Class A design, and tuned for the low impedance or/and high sensitive headphones/IEM. Examples can be brands such as Grado headphones, Focal Utopia, Fostex TH900, Final audio, Sony, and Denon headphones. MSRP : USD 1,299 Input : RCA Output : XLR 4 pins and 6.35 mm Battery life: 11 hours *We still use XLR 4 pins in Single End model is for being friendly to the users, just like Formula S. Broadway and Broadway S, they are all battery powered headphone amplifier. By using 18650 batteries, they provide very pure power to the headphones. You can charge the battery and listen to music at the same time. All power come from batteries even it's on charging. The performance of Broadway series is wonderful, especial the noise floor is incredible low. So it's no problem to drive IEM at all. it's designed in special way. With the compact dimension, it's movable amplifier, and being able to go with you in traveling, and also is perfect desk top amplifier. Dimension of Broadway and Broadway S : 212 mm *38 mm (not include feet)*156 mm (not include in/output terminal and VR) ============ ==== Link: http://xiaudio.net/ ======= I have requested to purchase Broadway S however I don't know at this stage how the balance out works on it and more importantly which model will have the new Sony Pentaconn balance out. All I know is I trust the designer of this amplifier and I can't wait to see what he will release next year, maybe true successor of LPG, one can hope.