Comments on: Phonofone II by Tristan Zimmermann

By: davide

davide — Tue, 21 Apr 2009 09:30:00 +0000

where is bought this?

By: Travis

Travis — Thu, 25 Dec 2008 16:16:58 +0000

I just got mine in black for my XMAS present. It is indeed very cool, yes it works, and no you don’t need 2 (but…). I had to hook up my Kangeroo IPOD amp to get enough volume to make it worth listening to and will now figure a way to get some more amp through it but it sounds great. For those of you non geeks, the ceramic material is often used in top quality speakers since the transmission characteristics are so good. Horn design is also a high end product design (check out Klipsh Horns) to get big sound from low power. This product is a winner. Thank you Rachel you are the best wife ever! Travis

By: alfa

alfa — Wed, 21 May 2008 09:47:28 +0000

Just as you say. My horn is a exponential horn and calculated in length and sice. The diameter at the hornend supports sound of 300 Hz frequency.
Of course, if you want a real basshorn going down to 50 Hz you need round about 2 meters of diameter!!! But that wouldn´t make sense if the earphone sound pressure level is ca. 114 dB!!!

you´re right. These things are more a anachronistic statement than good hi-fi equipment.

By: Will

Will — Wed, 21 May 2008 00:50:01 +0000

I’ve built speakers but I am no expert on horns; Horn speaker design is an art in itself- the drive unit characteristics have to suit horn loading and the flare of the horn has to match the spec of the drive unit. The length of the horn doesnt adversly affect sound quality- some fantastic old school folded horn designs are the size of a small room

By: alfa

alfa — Tue, 20 May 2008 21:28:49 +0000

Frustrating! I had the same idea, but mine looks better ;-) and I´m sure it works better, too.

I call it “Hendekagram”

http://www.rybol.com/