Re: Item Highlight : Knight KN612 HC
my heart is bleedin' !!!!!!!!
I'm too far .................
Bill F. said:This is a really sweet pair of vintage 12" coaxial drivers. They are the bigger, meatier cousin of the much more common EV 12trx. Have you ever hefted a 12trx? Well, believe it or not, these are substantially heavier in construction, standing out among their peers from a bygone age of serious overbuilding. These were built by EV to Knight's unique specifications.
This pair is in really excellent, fully functional shape with perfect whizzer cones around the coaxial alnico tweeter with the unique Knight lense. Really rare birds. I'm going to miss these.
I'm asking $200 for the pair, which amounts to a substantial loss for me.
my heart is bleedin' !!!!!!!!
I'm too far .................

Hi Bill
I was looking for the type of attenuator that I bought from you earlier either an Alps or Noble, and at that price point. This one is probably a whole lot better, but I think I'll pass on this one, thanks.
George
I was looking for the type of attenuator that I bought from you earlier either an Alps or Noble, and at that price point. This one is probably a whole lot better, but I think I'll pass on this one, thanks.
George
Item Highlight : Hamlin's / Lafayette SK98
These drivers are badged "Hamlin's", but they are identical in every other way to the more common Lafayette SK98, which several vintage enthusiasts have compared favorably with highly esteemed standards like the WE 755a.
All flavors of this driver were actually manufactured by Pioneer, whose house version was dubbed the PIM8L.
As a student of driver design, I am very intrigued and impressed by these units with their mechanically-crossed two-way cones. To me, they represent the highest advancment of fullrange cone technology before the market took an (unfortunate?) turn into multi-way design.
As with standard whizzer technology, the outer cone is coupled somewhat flexibly to the voice coil to roll of in the upper octaves, and the center cone is coupled tightly. However, the innovation here is that the center cone is not free-standing, but reattaches to the outer cone, lending effective mechanical transmission-line termination and preventing out-of-phase radiation from the rear which can make the response of freestanding whizzers ragged.
I have two pairs of these Hamlin's drivers, both sets fully functional. One pair has rougher cosmetics (a few stains, etc), and I'd be willing to let those go for $75. For the nicer-looking pair, I'd take $125.
These drivers are badged "Hamlin's", but they are identical in every other way to the more common Lafayette SK98, which several vintage enthusiasts have compared favorably with highly esteemed standards like the WE 755a.
All flavors of this driver were actually manufactured by Pioneer, whose house version was dubbed the PIM8L.
As a student of driver design, I am very intrigued and impressed by these units with their mechanically-crossed two-way cones. To me, they represent the highest advancment of fullrange cone technology before the market took an (unfortunate?) turn into multi-way design.
As with standard whizzer technology, the outer cone is coupled somewhat flexibly to the voice coil to roll of in the upper octaves, and the center cone is coupled tightly. However, the innovation here is that the center cone is not free-standing, but reattaches to the outer cone, lending effective mechanical transmission-line termination and preventing out-of-phase radiation from the rear which can make the response of freestanding whizzers ragged.
I have two pairs of these Hamlin's drivers, both sets fully functional. One pair has rougher cosmetics (a few stains, etc), and I'd be willing to let those go for $75. For the nicer-looking pair, I'd take $125.
Attachments
Item Highlight : 3" 45-ohm wideband drivers.
These are facinating little guys. Their 45-ohm impedance means you can array them in great numbers with no or very few series connections. This can be a big advantage in an array since, if drive parameters differ even a little (and they always do!), series connections in arrays can cause negative driver interacations.
On the other hand, I'd also thought it would be fun to make up some series arrays for over 1k-ohm impedance for direct tube drive sans output transformer. (
Danger--high-voltage idea!
)
I was planning massive square bessel arrays, power/frequency-tapered arrays, etc.
I have maybe 200 of these.
You can buy 'em en masse @ 2 for a dollar, and I might be able to give special deals for large quanties.
These are facinating little guys. Their 45-ohm impedance means you can array them in great numbers with no or very few series connections. This can be a big advantage in an array since, if drive parameters differ even a little (and they always do!), series connections in arrays can cause negative driver interacations.
On the other hand, I'd also thought it would be fun to make up some series arrays for over 1k-ohm impedance for direct tube drive sans output transformer. (


I was planning massive square bessel arrays, power/frequency-tapered arrays, etc.
I have maybe 200 of these.
You can buy 'em en masse @ 2 for a dollar, and I might be able to give special deals for large quanties.
Attachments
Hi. How much for the dynaudio d54's NIB? also, what tractrix horns are on the other pair of d54's?
Thanks!
Thanks!
Sale of the NIB D54af pair is pending.
The tractrix horn is a home-made wood bi-radial. I'll post pics if there's interest.
The tractrix horn is a home-made wood bi-radial. I'll post pics if there's interest.
Item Highlight : Coral FE103a pair
Dave (Planet10) is the resident expert on these little beauties, and he wrote a nice summary here. These are the most desirable 8-ohm holey-basket version. Sweet sounding and in great shape.
$75 a pair--a unique bargain considering their performance and rarity.
Dave (Planet10) is the resident expert on these little beauties, and he wrote a nice summary here. These are the most desirable 8-ohm holey-basket version. Sweet sounding and in great shape.
$75 a pair--a unique bargain considering their performance and rarity.
Attachments
Bill F. said:Pink,
Shipping would be $12 for surface or $27 airmail.
Hi Bill, I'm up for these if you still have them. Send me a mail with your paypal addy and I'll get some cash sent over to you.
Send me a mail with your paypal addy and I'll get some cash sent over to you.
YGM.
Re: Item Highlight : Coral FE103a pair
On the off-chance that SWMBO might allow me to get these, (dunno where I'll put them - maybe move the PHLs), what's postage to Australia form where you are (fast and slow)?
Bill F. said:$75 a pair--a unique bargain considering their performance and rarity.
On the off-chance that SWMBO might allow me to get these, (dunno where I'll put them - maybe move the PHLs), what's postage to Australia form where you are (fast and slow)?
Guys,
I'd be scooping them, but for the fact i'm already sitting on 2 pair... the Sony Tapecorders have very nice TamRadio (ie Tamura) SE output transformers, suitable for EL84, 6V6 etc. They also have a 600 ohm tape which would make excellent drive for a sub amp (or to make a real balsy pre-amp)
Here is more info (this set is an early version -- newer ones have captive leads)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5881903773
And i'm surprised no-one has scooped up the Coral coaxes ... if they are the ones i'm thinking of they are pick of the litter...
Bill, can you post a pic of the Admiral all-in-one unut? Very illustrative of the gems that were installed in stuff that was otherwise c$%&
dave
I'd be scooping them, but for the fact i'm already sitting on 2 pair... the Sony Tapecorders have very nice TamRadio (ie Tamura) SE output transformers, suitable for EL84, 6V6 etc. They also have a 600 ohm tape which would make excellent drive for a sub amp (or to make a real balsy pre-amp)
Here is more info (this set is an early version -- newer ones have captive leads)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5881903773
And i'm surprised no-one has scooped up the Coral coaxes ... if they are the ones i'm thinking of they are pick of the litter...
Bill, can you post a pic of the Admiral all-in-one unut? Very illustrative of the gems that were installed in stuff that was otherwise c$%&
dave
planet10 said:Guys,
I'd be scooping them, but for the fact i'm already sitting on 2 pair... the Sony Tapecorders have very nice TamRadio (ie Tamura) SE output transformers, suitable for EL84, 6V6 etc. They also have a 600 ohm tape which would make excellent drive for a sub amp (or to make a real balsy pre-amp)
Here is more info (this set is an early version -- newer ones have captive leads)........................
dave
as always-you are worth of title Master Scavenger!
tnx for another nice tip in your posts-I realized origin of pair of nice OPTs I have (even if I knew that they are from Sony RtR).......... 😉
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