yamaha b-2 amp

[karma67]

im thinking of getting one to drive my ns1000's has anyone heard one of these monsters?
other amp recommendations welcome up to £1000,please take into consideration the speakers when making suggestions chaps

[karma67]

no one?

[StanleyB]

The NS-1000M sounds fantastic with V-FET and MOSFET amps. The B-2 is a VFET amp, and a very good one at that.
I have the NS-1000M and I have been driving it with a V-FET power amp for close to a decade now. I tried other amps using valves or bipolar transistors, but they never sounded anywhere as good as my V-FET amp. The depth of the bass, soundstage, and clarity with V-FET is my type of sound. I would go for that Yamaha myself if I was looking for a new amp to drive my NS-1000M.

[jandl100]

Nope, not heard. Seriously sexy, though!
Mid 70s - will have needed TLC and a thorough service.

http://www.thevintageknob.org/yamaha-B-2.html
... "it IS one of the best amplifiers of all time "

The NS1000M speakers started 1974, so same period as the amp.
Whether or not they were designed to work together I have no idea, but I wouldn't be surprised.

Go on, get it, you know you want to.

[karma67]

Nope, not heard. Seriously sexy, though!
Mid 70s - will have needed TLC and a thorough service.

http://www.thevintageknob.org/yamaha-B-2.html
... "it IS one of the best amplifiers of all time "

The NS1000M speakers started 1974, so same period as the amp.
Whether or not they were designed to work together I have no idea, but I wouldn't be surprised.

Go on, get it, you know you want to.

ive read the vintage knob page a few times lol
its a 220v apparently,will that be ok on our mains?

[walpurgis]

Bear in mind that VFET amps like these and the Sonys are a gamble. As far as I'm aware, VFET's are now unobtainable, so if it goes 'pop', you've had it!

[StanleyB]

Bear in mind that VFET amps like these and the Sonys are a gamble. As far as I'm aware, VFET's are now unobtainable, so if it goes 'pop', you've had it!

The trick is not to play the amp at full blast.

[Beobloke]

Bear in mind that VFET amps like these and the Sonys are a gamble. As far as I'm aware, VFET's are now unobtainable, so if it goes 'pop', you've had it!

It's also worth checking that any VFET amplifier you buy actually has VFETs in it!

For those who don't know, I have an amplifier that looks exactly like the Yamaha B-2 pictured that I bought unseen for a very low price. Unfortunately, on investigation, it turned out to have had its VFET output stages removed and replaced (not very well) by some MOSFET output modules. I was rather gutted but, actually, when the installation was tidied up and made safe and properly working, and the meters re-connected and calibrated, it sounded really nice. So much so that I still use it in the lounge today. And it's probably going to be the most reliable 'Yamaha B-2' out there!

As an aside, my good friend Tim helped me with the restoration effort and took a good deal of hilarity from the whole experience. Luckily I was able to retaliate in kind when he bought a Sony VFET amplifier a few months back to find it had been subjected to exactly the same treatment! Who is this mystery VFET/MOSFET bodger, I wonder....?

[Bigman80]

ive read the vintage knob page a few times lol
its a 220v apparently,will that be ok on our mains?

It entirely depends on the amp itself. I needed a bucking transformer for the Sony as the UK voltage was too high in my area for the tolerance of the Capacitors inside. Personally, I'd suggest being prepared for extra spend to ensure it is made safe.

This is from experience.

Sent from my EVA-L09 using Tapatalk

[karma67]

thanks stanley,im very tempted but its unknown Territory for me,hence my caution