Hi folks.
Looking for a narrow bore low D whistle without heavy wind noise. Holes may be not too big.
Any recommendations from you experts?
Hauke
Goldie makes fine narrow bores, we have a medium-hard blower narrow low d and I wouldn’t say it’s tone is breathy (windy noise) at all, very reedy in fact. Holes are perfectly fine.
Sounds good. Although Goldie is one of the most expensive ones. Does any other brand exist?
Here’s a discussion from a while back
https://forums.chiffandfipple.com/t/goldie-narrow-bore-low-d/105874/1
Thank you. 
I own a Goldie narrow bore low D, with a medium hard blower mouthpiece. While I consider the overall sound of the whistle to be more complex in overtones over that of some low D’s, it is in line with all Goldie instruments. I would not call it scratchy or breathy.
Thanks Byll. 
Yes getting a Goldie Narrow Bore Low D is on my bucket list!
BTW Byll I don’t know how your name is supposed to be pronounced but in my head I’m pronouncing it to rhyme with the last syllable of Llanfairpwll.
The only other maker I can think of who might make a narrow bore low D (as a custom job) would be John Bushby at Shearwater Whistles. I’ve seen mention of NB Shearwaters as low as G but not low Ds, so far. Might be worth asking.
I have a Goldie NB low D (1.0 windway), which is my go-to whistle for the higher register. As for tone, it’s usually described as ‘throaty’ with perhaps more audible overtones than other low Ds. Also, the whistle I have was made in 2015, so the newer ones may have undergone some subtle design changes since then.
Great! Thank you stiofan.
How narrow is the Goldie narrow bore low D in millimetres?
My Goldie narrow-bore tenor D has an interior dimension of 20mm. I’m pretty sure that’s the same bore size as the alto F (at least in 2015).
Thanks for that information - that happens to be the internal diameter I chose for an experimental low D whistle that I’m currently building, so I’ll now know not to blame the size if it doesn’t sound good.
My Goldie Mezzo/Alto F measures at 18.16mm.
My Goldie Low D measures at 21.8mm while the Low E (natural) Overton I used to have measured 21.9mm.
My Alba Low E (natural) measures 18.4mm and is a very sweet player.
An example of how wide-bore Burkes are for a given size is the Burke Mezzo/Alto F that I owned which measured 19.8mm.
I didn’t measure the Burke Low D that I used to have but someone said his was around 23mm which goes to figure.
Thanks - that’s all really helpful too. I’ve been making wooden whistle heads (mouthpiece converters) for quenas and quenillas and it’s hit or miss as to what works, so it’s important to know which factors not to blame. Got one good one at last for a high C quenilla. Now need to start from scratch for the low D.