Our featured product this Winter is Yamamoto Sound Craft's line of ebony audio bases.

African ebony is an exotic hardwood that is well-known for its rich resonant properties, and this wood is widely used for making many different musical instruments, including clarinets and oboes.

For a number of years now, Yamamoto Sound Craft - a high-end audio company hailing from Japan - has been using African ebony to construct a wide range of audio isolation devices. Venus Hi-Fi is pleased to introduce the following three best-selling Yamamoto audio bases to North America:

1) The PB-9. These ebony cones can be used under nearly any source component (CD player, turntable, etc.), preamplifier, or amplifier, and will impart a more precise yet tonally richer sound. Retail price is $40 per set of four.

2) The PB-10. These ebony cups are meant to be used under any standard spike or cone. Not only will these cups improve the sound quality of a component, they will also guard against the scratches and indentations that spikes and cones can leave on unprotected surfaces. Retail price is $35 per set of four.

Note: The PB-9 can be used in conjunction with the PB-10, and we strongly recommend this combination under any audio component for the best sonic results!

3) The PB-12. This is essentially a PB-9 ebony cone that rests inside a large Japanese cherry base. The PB-12 is meant to be used under either loudspeakers or speaker stands. Retail price is $75 per set of four.

All of the above isolation devices are quite popular in Japan, and for good reason. The Yamamoto audio bases receive our highest recommendation!

Venus Hi-Fi
www.venushifi.com (http://www.venushifi.com)
812-320-4004

Hmmm, The PB-9 + PB-10s are tempting. Are the "cones" solid ebony?
I'm curious.
Jack

Brian, what is the weight limit on the cones and their bases?

Brian, does the base allow the cones to sit free or do they fit tightly together

Okay, here are some answers to everyone's questions.

1) Jack: Yes, both the PB-9 and the PB-10 are solid ebony.

2) VinylHanger: There is plenty of "wiggle room" in the fit between the PB-9 cones and the PB-10 cups.

3) Upstateaudio: I will check with Yamamoto Sound Craft regarding the weight limit of their audio bases, but I suspect that a set of any of these isolation devices would be able to support at least 75 pounds with no trouble.

Cheers,
Brian

Hello, Upstateaudio!

According to the manufacturer, the upper weight limit of the PB-9 and PB-10 audio bases is 50 kgs (about 110 pounds) per set of four.

Happy listening!

Brian are there dimples on BOTH sides of the PB-10's? I'm guessing they are on one [1] side only. MikE

Originally posted by MikE
Brian are there dimples on BOTH sides of the PB-10's? I'm guessing they are on one [1] side only. MikE

one side would be my guess(hope).
Any measurements?
Thickness? diameter?
Are the 9s 1" thick(plus spike)?
how thick are the 9s + 10s?
curious,
Jack

MikE: The PB-10 is dimpled on only one side - the other side is perfectly flat.

Jack: Both the PB-9 and the PB-10 have a diameter of 1 and 1/4 inches. The PB-9 stands 3/4" tall (including the spike), the PB-10 stands 1/2" tall, and the two together stand 1 and 1/8 inches tall.

Here's how they look...

Hiya ProAc!

For the sake of both stability and sonics, I would strongly recommend NOT using the Yamamoto audio bases (or any small isolation devices, for that matter) directly under the existing feet of your components. Rather, the upper surface of the audio bases should be in direct contact with the chassis.

Cheers,
Brian

One more tip: Although these audio bases come in sets of four, don't feel that you have to use all four under any given component. In particular, if the component weighs less that 75 pounds, then you might find a tripod configuration to be preferable...

Originally posted by BrianB
Hiya ProAc!

For the sake of both stability and sonics, I would strongly recommend NOT using the Yamamoto audio bases (or any small isolation devices, for that matter) directly under the existing feet of your components. Rather, the upper surface of the audio bases should be in direct contact with the chassis.

Cheers,
Brian

I was actually going to say the same thing. Putting them under spikes would defeat the purpose.
Yes, 3 can actually be more stable in some situations.
Jack