Sony TA-F606ES-- anyone know it?
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Here are photos of one, looking like its big brothers the 707ES and 808ES except for color. Power is 80w/ch (vs 90 and 100 for the other two) into 8 ohms, with "dynamic" ( = momentary, not continuous) ratings down to 1 ohm! MOSFET, of course.
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Turns out it's a very nice amp. Smooth, with an air of authority that borders on the smug. Has what I've come to think of as that can-do MOSFET sound. Floated Rachael Yamagata nicely in the air between two Ohm Walsh speakers; she didn't complain.
Has a single pair of Toshiba 2SJ201 / 2SK1530 per channel.
Mine runs cool, cooler than my other MOSFET amps. Most owners of the 707/808 mention that theirs run hot.
Has that interesting SOURCE DIRECT function with the ability to bypass everything but the volume control.
Built very solidly, but with none of the anti-vibration gewgaws of the 808.
Compared to 707/808: gives up the pre-out switch, the MC phono load selector switch, the direct-input selector, and one of the three tape inputs. Probably also the MOSFET driver stage.
THD spec is about twice the 707/808's.
IM spec is about 50% greater.
I'd say it's a nice frugal choice for someone who wants to step up from, say, a Hitachi HA-7700, keeping in mind that there weren't too many MOSFET integrateds to step up from. Well, there was the Marantz PM94, but time hasn't been good to that one.
It's a bit of a sleeper. You might just get one for a reasonable price.
Has a single pair of Toshiba 2SJ201 / 2SK1530 per channel.
Mine runs cool, cooler than my other MOSFET amps. Most owners of the 707/808 mention that theirs run hot.
Has that interesting SOURCE DIRECT function with the ability to bypass everything but the volume control.
Built very solidly, but with none of the anti-vibration gewgaws of the 808.
Compared to 707/808: gives up the pre-out switch, the MC phono load selector switch, the direct-input selector, and one of the three tape inputs. Probably also the MOSFET driver stage.
THD spec is about twice the 707/808's.
IM spec is about 50% greater.
I'd say it's a nice frugal choice for someone who wants to step up from, say, a Hitachi HA-7700, keeping in mind that there weren't too many MOSFET integrateds to step up from. Well, there was the Marantz PM94, but time hasn't been good to that one.
It's a bit of a sleeper. You might just get one for a reasonable price.
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Thank you, and I agree: the F606ES is a serious, well-built amp. You can see how far Sony had come since the VFET integrateds of the '70s. The 606 is mechanically much more solid.
The nice thing about the 606 is that if my experience is anything to go by, one of them shouldn't cost that much more than the early-'80s MOSFET amps I've been fooling with.
My only complaint is the odd afterthought tone controls. Even the TOTL 808ES has the same plain bass and treble knobs. No midrange control, no turnover-frequency choices. A nice, well-judged bass boost switch would've been handy too. But I'm just happy it works.
Haven't tried the 606's phono section yet.
The nice thing about the 606 is that if my experience is anything to go by, one of them shouldn't cost that much more than the early-'80s MOSFET amps I've been fooling with.
My only complaint is the odd afterthought tone controls. Even the TOTL 808ES has the same plain bass and treble knobs. No midrange control, no turnover-frequency choices. A nice, well-judged bass boost switch would've been handy too. But I'm just happy it works.
Haven't tried the 606's phono section yet.
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IsakAlexande
Active Member
:thmbsp:
IsakAlexande
Active Member
Yes it´s my own. Trying to figure out why the left channel are muffled in the top end. There are 2 caps close to the bias adjustment and some transistors, they get a lot of heat. Could this be it? Have a thread over at diyaudio also.
The alps pot is a 4 pin type with a loudness tap.. 120k(?)x2
The alps pot is a 4 pin type with a loudness tap.. 120k(?)x2