IPodPJ
MOT: Bellatone Audio
Caution: Incomplete customer orders
- Joined
- Apr 17, 2006
- Posts
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I received mine too but don't have a scanner here at home. Mine is much closer to kelvinz than it is to vai-777.
The certificate itself, which is custom digital printed with our names and serial numbers on it at the top, includes this bit of text:
"Standardized for High Performance
The curve shown below is the result of a comparison between the perceived volume
and the measured SPL. The goal of such a comparison is to measure the necessarily
subjective elements of high sound quality in a standardizable way.
The reference measurement on which it is based takes several days and involves no
fewer than 16 acoustics experts; it takes over 10 hours just to calibrate the sound field.
Only by going to these extraordinary lengths can we keep our promise:
HD 800 -- Crafted for perfection.
(I will provide the graph in numbers (as close as possible to the nearest 0.1 dB) so you can see what the curve is: )
Your Individual Diffuse Field Frequency Response
HD800 silver. Serial no.: 00685. Loudness diffuse field - Frequency response.
100 Hz -------- 3.2 dB
125 Hz -------- 3 dB
150 Hz -------- 2.8 dB
200 Hz -------- 2.6 dB
250 Hz -------- 1.4 dB
300 Hz -------- 2.6 dB
400 Hz -------- 2.9 dB
500 Hz -------- 2.7 dB
600 Hz -------- 2.6 dB
800 Hz -------- 2.3 dB
1 kHz --------- 2.6 dB
1.2 kHz ------- 3 dB
1.5 kHz ------- 3.25 dB
2 kHz --------- 2.5 dB
2.5 kHz ------- 1.4 dB
3 kHz --------- 0.3 dB
4 kHz --------- 1.1 dB
5 kHz --------- 1.6 dB
6 kHz --------- 3.5 dB
8 kHz --------- 2.2 dB
10 kHz -------- 2.8 dB
12 kHz -------- 2.5 dB"
Here is what the included letter says:
"Dear Mr. --------
Thank you for your interest in an individual frequency response for your HD 800.
We are pleased to be able to send you your own personal copy today.
The enclosed certificate documents just one of numerous quality tests conducted to
ensure that all HD 800 headphones meet our very strict standards for sound reproduction
and sound quality.
But this test is undoubtedly one of the most impressive: It is based on reference
measurements taken over several days by no fewer than 16 of our best acousticians.
We have recorded the results just for you.
We hope you continue to enjoy your very own piece of hand-made perfection!
Yours sincerely,
Maurice Quarre
Product Manager
Home Audio
Axel Grell
Senior Acoustical Engineer
Headphones"
But here's the most interesting thing! On the frequency response graph, on the top next to the serial number it says "HD800 silver." Does this imply that any color other than silver is going to be released? If not, why even mention it?
The certificate itself, which is custom digital printed with our names and serial numbers on it at the top, includes this bit of text:
"Standardized for High Performance
The curve shown below is the result of a comparison between the perceived volume
and the measured SPL. The goal of such a comparison is to measure the necessarily
subjective elements of high sound quality in a standardizable way.
The reference measurement on which it is based takes several days and involves no
fewer than 16 acoustics experts; it takes over 10 hours just to calibrate the sound field.
Only by going to these extraordinary lengths can we keep our promise:
HD 800 -- Crafted for perfection.
(I will provide the graph in numbers (as close as possible to the nearest 0.1 dB) so you can see what the curve is: )
Your Individual Diffuse Field Frequency Response
HD800 silver. Serial no.: 00685. Loudness diffuse field - Frequency response.
100 Hz -------- 3.2 dB
125 Hz -------- 3 dB
150 Hz -------- 2.8 dB
200 Hz -------- 2.6 dB
250 Hz -------- 1.4 dB
300 Hz -------- 2.6 dB
400 Hz -------- 2.9 dB
500 Hz -------- 2.7 dB
600 Hz -------- 2.6 dB
800 Hz -------- 2.3 dB
1 kHz --------- 2.6 dB
1.2 kHz ------- 3 dB
1.5 kHz ------- 3.25 dB
2 kHz --------- 2.5 dB
2.5 kHz ------- 1.4 dB
3 kHz --------- 0.3 dB
4 kHz --------- 1.1 dB
5 kHz --------- 1.6 dB
6 kHz --------- 3.5 dB
8 kHz --------- 2.2 dB
10 kHz -------- 2.8 dB
12 kHz -------- 2.5 dB"
Here is what the included letter says:
"Dear Mr. --------
Thank you for your interest in an individual frequency response for your HD 800.
We are pleased to be able to send you your own personal copy today.
The enclosed certificate documents just one of numerous quality tests conducted to
ensure that all HD 800 headphones meet our very strict standards for sound reproduction
and sound quality.
But this test is undoubtedly one of the most impressive: It is based on reference
measurements taken over several days by no fewer than 16 of our best acousticians.
We have recorded the results just for you.
We hope you continue to enjoy your very own piece of hand-made perfection!
Yours sincerely,
Maurice Quarre
Product Manager
Home Audio
Axel Grell
Senior Acoustical Engineer
Headphones"
But here's the most interesting thing! On the frequency response graph, on the top next to the serial number it says "HD800 silver." Does this imply that any color other than silver is going to be released? If not, why even mention it?