Hi All,
First post - I hope this is the right place to post. Sorry if not. Well, I have been amazed at the amps on show here and thinking of dipping my toe into building one. My speakers are the Yamaha NS1000-M, a 90 dB sensitivity sealed 3-way built in the 80s. The ideal match is supposedly a Yamaha B-2 V-FET 2x 100W into 8 ohm amp, but finding one in good shape is unlikely and likely expensive.
The speakers are in a largish room so need a bit of power. Right now I am using a Wyred4Sound Mint integrated (100W/ch ICE powered class D) and that seems adequate.
So, would the F-6 be a better match? It seems to me, though I am no expert, that it would be closer in spirit to the B-2 than the Mint.
Finally, what would the build cost roughly end up being? I realize there's lots of options, so looking for a ballpark number. This would be my first build, so no recycling of PSUs or cases. I'm in the US and would like to buy from here rather some dodgy ebay knock off.
cheers,
meeker
First post - I hope this is the right place to post. Sorry if not. Well, I have been amazed at the amps on show here and thinking of dipping my toe into building one. My speakers are the Yamaha NS1000-M, a 90 dB sensitivity sealed 3-way built in the 80s. The ideal match is supposedly a Yamaha B-2 V-FET 2x 100W into 8 ohm amp, but finding one in good shape is unlikely and likely expensive.
The speakers are in a largish room so need a bit of power. Right now I am using a Wyred4Sound Mint integrated (100W/ch ICE powered class D) and that seems adequate.
So, would the F-6 be a better match? It seems to me, though I am no expert, that it would be closer in spirit to the B-2 than the Mint.
Finally, what would the build cost roughly end up being? I realize there's lots of options, so looking for a ballpark number. This would be my first build, so no recycling of PSUs or cases. I'm in the US and would like to buy from here rather some dodgy ebay knock off.
cheers,
meeker
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Well the F6 presents an ultra clear sound stage but without top end harshness or sibilance.
This means that it would not be exaggerating any good or bad features of the speakers.
Build cost is
PCB & transformer kit from the store
Power supply PCB from the store
Case from the store
LSK jfets from the store
Mains transformer Digikey
Small components and Mosfets Digikey
That is the lazy boys way with everything delivered to your door!
Do a little study and you should get a price.
It is such a good and simple amp that it is not worth compromising on parts quality to save a couple of dollars
IMHO!
This means that it would not be exaggerating any good or bad features of the speakers.
Build cost is
PCB & transformer kit from the store
Power supply PCB from the store
Case from the store
LSK jfets from the store
Mains transformer Digikey
Small components and Mosfets Digikey
That is the lazy boys way with everything delivered to your door!
Do a little study and you should get a price.
It is such a good and simple amp that it is not worth compromising on parts quality to save a couple of dollars
IMHO!
90/db speaker with a 4.5 ohm min.
F6 should drive those to loudish levels, not insanely loud levels but 85db ish at the listening position should be in its comfort zone. F5 would work well as well.
Build cost...probably $600 min with case. Of course you can spend more.
If you are a fan of classical or listening loud I would choose something with more power. If you listen to small scale music or something without large dynamic swings you should be fine. I use an f5 with 89db 3-ways in a large room. It's on the edge, power-wise for me. Loud listening for me is 85-90db at the listening seat.
Also, those are fairly valuable vintage speakers with no replacement parts available. I'd be sure your build is stable and use speaker protection if you care about the speakers a lot.
You will need a preamp if you don't have one already, obviously. You are not going to get by with a passive preamp and those speakers.
You might find this interesting:
6moons audio reviews: FirstWatt M2
F6 should drive those to loudish levels, not insanely loud levels but 85db ish at the listening position should be in its comfort zone. F5 would work well as well.
Build cost...probably $600 min with case. Of course you can spend more.
If you are a fan of classical or listening loud I would choose something with more power. If you listen to small scale music or something without large dynamic swings you should be fine. I use an f5 with 89db 3-ways in a large room. It's on the edge, power-wise for me. Loud listening for me is 85-90db at the listening seat.
Also, those are fairly valuable vintage speakers with no replacement parts available. I'd be sure your build is stable and use speaker protection if you care about the speakers a lot.
You will need a preamp if you don't have one already, obviously. You are not going to get by with a passive preamp and those speakers.
You might find this interesting:
6moons audio reviews: FirstWatt M2
Thanks, all for the input. The 6moons article was an interesting read. If the f-6 is on the edge power wise, I may be better off with the Pass Labs x-150 or similar considering I do like a broad variety of music.
http://www.diyaudio.com/forums/mult...much-voltage-power-do-your-speakers-need.html
Do this. See how many watts you are using now and you will know if 25w is enough for you.
Do this. See how many watts you are using now and you will know if 25w is enough for you.
Meeker - are you in your namesake town? If you find yourself in Denver, I'll loan you my F6 if you want to try it 🙂
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