My 10th pair of GRF's...this one in American Walnut, on Euro Birch ply. Extra bracing.
Denim/wool lining.
Plinths 50mm.
Monitor Gold's 15's, with standard xovers.
Sounding fantastic.
Denim/wool lining.
Plinths 50mm.
Monitor Gold's 15's, with standard xovers.
Sounding fantastic.
Attachments
Beautiful!
But after 10 pairs don't you think it is about time to take the next step up and try yourself on an Autograph? ;-)
But after 10 pairs don't you think it is about time to take the next step up and try yourself on an Autograph? ;-)
Are measured plans for the Westminster available? That'd be a challenge
Just did some minor refinishing on a 1988 era pair of these. Quite a luscious sound with the right upstream gear - in this instance a QUAD QII integrated - a nice little piece as well.
Just did some minor refinishing on a 1988 era pair of these. Quite a luscious sound with the right upstream gear - in this instance a QUAD QII integrated - a nice little piece as well.
Yes.. Westy plans are available.. Google Is your friend.
In truth tho I'm surprised by someone building 10? grf's.
Once was more than enough for me 😱
Odd one note bass overpowering the mids.. Not good (bad even) by most yardsticks.
A fairly common observation/result as well.
Mine soon became firewood.
Genuine shame as it involved a lot of work and worse; dashed hopes.
This one reads as promising... I'm considering trying it .. one day ?
truefi: The TrueFi Tannoy Enclosure –*The Manufacture
In truth tho I'm surprised by someone building 10? grf's.
Once was more than enough for me 😱
Odd one note bass overpowering the mids.. Not good (bad even) by most yardsticks.
A fairly common observation/result as well.
Mine soon became firewood.
Genuine shame as it involved a lot of work and worse; dashed hopes.
This one reads as promising... I'm considering trying it .. one day ?
truefi: The TrueFi Tannoy Enclosure –*The Manufacture
Charles, I've built these for others...not mine...though I quite enjoy the 'grumbly' nature of the bass.
Bare, that is a very interesting link...look like a great design.
I'd build the Westminster Royal, but not the Autograph...simply too large and time consuming.
Kind regards.
Andrew
Bare, that is a very interesting link...look like a great design.
I'd build the Westminster Royal, but not the Autograph...simply too large and time consuming.
Kind regards.
Andrew
Andrew, these are beautiful. Thanks for sharing. I'm something of a huge sucker for all things walnut, to boot. 🙂
Frankly that cab makes very little sense to me.
The acknowledged problem with the GRF is that it throws the frequency response out of kilter by horn-loading the bass but doing nothing for the mids.
Hence the Westminster and Autograph are generally accepted as the better solution as they load the mids requiring just the treble to be padded down a little bit less (compared to a simple vented cab).
If you do nothing to the GRF crossover you end up with the smiley-face eq curve which is quite popular.
This one loads the mids but does even less than a ported box to load the bass. I expect the result to be virtually unlistenable without some major reworking of the crossover. That would require padding the mids back down to the level of the unsupported woofer to get a balanced FR.
Generally OB and Tannoy are not a good combination.
OBs want a high Qts woofer to minimise the need for electronic eq while Tannoys though are very low Qts drivers requiring radically different solutions.
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