Harmonic characteristics of the larger amps

[Yep, this blog was down yesterday morning – have no idea why except that it was not us who were responsible. One of the few times these days where I can pt fingers at someone else for a change! :-)]

Here is where we are currently with the dynamic side of things…

// MICRO < - less .... more ->
Soulution – McIntosh – BAT – CAT – VTL – ARC – Pass – Boulder – Krell – FM Acoustics – Spectral – Halcro – Vitus – MBL – Ayre – Sanders – Goldmund – Edge (early NL series)

// MIDI < - less .... more ->
VTL – BAT – CAT – ARC – McIntosh -Vitus – Edge – Sanders – Goldmund – FM Acoustics – Pass – Ayre – MBL – Spectral – Halcro -Krell – Soulution – Boulder

// MACRO < - less .... more ->
Spectral – Vitus – Edge – Ayre – Pass – CAT – Halcro – Sanders – Goldmund? – FM Acoustics – MBL – McIntosh – Krell – Soulution – ARC – Boulder – BAT – VTL

Let’s look at harmonics. We might want to think about this by looking a several aspects of harmonics: about harmonic color, purity and resolution? Guess I am kind of assuming that the amps are tonally accurate, otherwise… otherwise they probably shouldn’t even be on the list? Are all these amps really tonally accurate up and down the frequency spectrum?

Harmonic Color: amount of harmonics (opposite of ‘lean sounding’):

// COLOR < - less .... more -> FIRST PASS at this list – there WILL BE CHANGES
Krell – VTL – ARC – FM Acoustics – Pass – Boulder – Vitus – CAT – BAT – Soulution – Halcro – Goldmund – Spectral Sanders – Edge – Ayre – MBL – McIntosh

Harmonic Purity: lack of contamination of fundamental harmonic with other odd and bizarre harmonics (i.e. a tuning fork compared to a steel barrel – they might both primarily resonate at the same harmonic, but… one is purer than the other). I think solid-state amps do better here than many of the tube amps – which are often all over the place w/r to harmonics.

// PURITY < - less .... more -> FIRST PASS at this list – there WILL BE CHANGES
VTL – ARC – McIntosh – BAT – CAT – Krell – Pass – Boulder – Soulution – FM Acoustics- Halcro – Vitus – Goldmund – Spectral – Sanders – Edge – Ayre – MBL

Harmonic Resolution: amount of subtleties in the harmonic – most real instruments, like a pluck on a guitar or striking of a piano, have lots of things going on besides the harmonic (and its fundamentals) at one single freq of the note.

From Wikipedia: “The untrained human ear typically does not perceive harmonics as separate notes. Instead, they are perceived as the timbre of the tone. Bells have more clearly perceptible partials than most instruments. Antique singing bowls are well known for their unique quality of producing multiple harmonic partials or multiphonics”

// HARMONIC RESOLUTION (detail) < - less .... more -> FIRST PASS at this list – there WILL BE CHANGES

OK. So what do you think?

AXPONA ANNOUNCES ITS SECOND ANNUAL HIGH PERFORMANCE AUDIO SHOW FOR SPRING 2011

AXPONA ANNOUNCES ITS SECOND ANNUAL HIGH PERFORMANCE AUDIO SHOW FOR SPRING 2011
Greetings!

DAYTONA BEACH — With just under five weeks before attendees come through
the doors of Jacksonville’s Wyndham Riverwalk Hotel for the first annual AXPONA High
Performance Audio Show, the show’s sponsor, Audio Expo of North America, has
announced the second event, scheduled for Spring, 2011.

Audio Expo, whose debut event will take place March 5-7, will showcase the latest-and-greatest in high performance home audio for an expected more than 4,000 enthusiasts from all over the country and around the world.

“When we decided to launch AXPONA, nearly a year ago, we felt there was a need
for this kind of show and we hoped it would succeed,” said Andrew Spaulding,
AXPONA president, “but we did not anticipate the tremendous enthusiasm from
exhibitors and the public that we found.” Many of our exhibitors, as well as those
who were unable to show this year, suggested that we make this an annual event,
Mr. Spaulding added.

The show’s early success has provided an unexpected opportunity, Mr. Spaulding
continued. “We’ve gotten the kind of buzz you really want,” he said. “The folks in
Jacksonville want us back – and we’ve been approached by some other cities, as
well. While I can’t tell you specifically where we’ll be next year, I can tell you
that the show will be in the Southeast in the spring.”

Audio Expo North America’s mission is to further the faithful reproduction of music.
Its outreach, by education and demonstration, is to dealers and consumers. It is
dedicated to the proposition that living with music is different and better than living without music. The organization’s first event, AXPONA, is scheduled for March 5-7,
2010. For further information, visit the AXPONA website: www.axpona.com
We would like to offer a very special thanks to Stereophile Magazine for all the efforts they have put forth and the media sponsorship they have provided. We look forward to next years event with hopes they will be as much a part as they are this year.

We want to thank the over 200 manufactures and suppliers as well as the dealers, distributors, and press that have been so instrumental in the future of this event. Attendees are already numbering in the thousands and it is hard to measure the level of appreciation we are feeling.
Sincerely,
Andrew Spaulding

1st Annual Capital Audiofest!

1st Annual
Capital Audiofest!

Welcome to the 2010 Capital Audiofest! WWW.Capitalaudiofest.com
The date for this unique event is set for June 11-13, 2010 at the historic Glenview Mansion located on the grounds of the Rockville Civic Center, 5 minutes from downtown Rockville, MD and approximately 10 miles north of Washington DC. The Glenview Mansion is a charming old world structure constructed in the 19th century and is surrounded by lovely parkland and well groomed grounds. The structure is well constructed with stone, brick, plaster, and old growth woods and has high ceilings and hardwood floors throughout. These qualities are near perfect for the reproduction of music and is already a favorite venue for local musical performances. We believe it to be an ideal setting to hold the first ever hi-fi audio show in the capital area. For more information on the room configurations, view the on-line floor plan www.rockvillemd.gov/glenview/ .

We plan to make this a casual fun-filled event for audiophiles, music lovers, collectors, hobbyists, DIYers, dealers and manufacturers and will have table space, booths and rooms available for rent. Families will also enjoy the beautiful setting and great food. The event is expected to attract those interested in vacuum tube and transistor audio equipment, analog and digital playback sources, buying and selling of LP records and CDs, and manufacturers of audio accessories. The event will be catered by high quality food and beverage vendors and plan to have live music performances from well known artists on one or two evenings. Last but not least we plan to offer an audio swap meet on Sunday morning. We hope to provide something of interest to all music lovers!
We hope you can join us for this exciting event!

For any questions please contact capitalaudiofest@gmail.com or Gary Gill at 703-839-5684.