Most foreign branded gear are more expensive in Taiwan, when compared to prices in the USA. Blame the lousy import duties and middle men.
But yes, Firestone Audio were running a limited intro special on the Tobby+Bobby combo since December last year.
For a paltry NT$24000 (USD$ 800), you could have both of them, which is utterly ridiculous.
I have had the pair running my HE-500's since January, and it (subjectively) bests many of the imported DACs/Headphone Amps with asking prices way above the US$1000 threshold.
Firestone typifies what you would call the "japanese" sound (in good old hifi lingo). Much like the Accuphase, Luxman and (high-end) Denon of yester-years, they sound clear, tight, slightly analytical, and paces gently. The japanese gear in the 80-90s prized absolute clarity and resolution above pace/drive (or what the hipsters call PRaT). It is never bold or over warm. It lets the recordings do what it was meant to do. By old analogue standards, they were considered 'dry' and 'aneamic' sounding (as opposed to the warm Brit sound or bold/slamming American sound). That's my feeling on all the FIrestone gear since their earlier days. But with the BB 1974 in the Tobby, they have toned down the dryness by adding some warmth. (I've always felt the BB dacs are warmer, Wolfson dacs are faster and dryer, Sabre dacs have drive and detail, while AKM dacs are somewhere in between ... they all have a family signiture when implemented correctly. But no, I cannot A/B them in a blind test. Just subjective bias.)
Anyhow, I digress... this Tobby+Bobby combo should be a no-brainer for just US$800 ...
If you buy this combo, for the love of ___, go fully balanced. The improvements I got from going fully balanced was phenomenal. Better channel seperation, more detail, lower noise floor (blackness of background), tighter bass, smoother treble. Yahdeeyah ... yadeeyah ... (all those old cliches) ... you get the picture.
Basically, it is a discernable leap in sound quality once you go balanced on this setup, all the way to your headphones.
I will never go back to RCA and 6.5mm jacks - at least not with this current system. And I have some decent RCA cables that cost a pretty penny. (Transparent RCAs from my old hifi days).
Caveat ... this combo didn't gel with my Grado cans. It made my SR125s too shrill.
But it sounded good to great with the Senn 598, LCD2s and HE 500 (my current muse).
Are there better options ... yes of course. But for US$800-1200 (for a seperate balanced dac+amp) ... not on this island ... at least not new.
These special US$ 800 combo units may have sold out at most places, but you may call / email X-Wind (situated in store B03 at NOVA 3C Center opposite the southern entrance of Taipei Central Train Station) and ask them nicely if they still have some in stock.
https://www.facebook.com/xwind.R
http://goods.ruten.com.tw/item/show?21303182275420
Good luck.