Sunday, January 9, 2011

Friday, January 7, 2011

Retro Hi-Fi Girl Friday

University Speaker Systems

Mid Century Modern design is my fave. I'm starting to horde this kind of furniture.



I saw a pair of these KwikKits at a store in Austin for $145. This drove me crazy because I flew in and couldn't buy them. I did let a friend know about them. The good news is that they used Jensen components.

Thursday, January 6, 2011

Koa Klipschorn Jubilee by Jorjen

I am working on a history of the Klipschorn Jubilee for a lengthy post but in the mean time I can't help but post this eye candy. This is DIY believe it or not. I've recently heard the baby cheeks and they are really good. The mid horn is a tractrix horn which I have also heard but not with a TAD driver. This system just has to sound good. The cabinet work is just over the top.






I don't have specifics on the crossover design but they are pretty.

Incredible work Jorjen.

Wednesday, January 5, 2011

Decware FRX Full Range Driver

This looks really cool. I've never heard any Decware gear just a little window shopping. It is very interesting. I've been looking for an interesting driver to try.

The FRX represents an obsessive effort on my part to perfect the full-range point-source driver for Open Baffle speakers at a sane cost. While the build quality of this driver will compete with with other brands costing many times the price, I don't believe any of them will hold up sonically because of the side effects of high flux low mass designs. Side effects like the occasional shouty mid-range and forward presentation or ringing that comes with the tipped up response that is characteristic of these types of drivers. The FRX overcomes these side effects with a unique motor assembly that uses electromotive coupling between the amplifier and the voice coil. There is no other single driver in the world with this technology.

I personally hand build these drivers to order. Build time on a pair of these fine drivers is 6 to 8 weeks.

-Steve Deckert

FEATURES

High sensitivity/minimal distortion—an ideal match for lower powered amplifiers

Electromotive amplifier to voice coil coupling eliminates ringing and stabilizes response

Machined motor assembly with optimized neodymium magnet provides high motor strength

Solid bass performance, thanks to usefully high excursion capability (>4 mm Xmax)

Cast frame with under spider venting for excellent cooling and low mechanical noise

Narrow spokes eliminate reflections behind the cone for cleaner response

Motor shape acts as a rear wave guide to enhance dispersion.

Parasitic HF cone and carefully engineered phase plug extend on- and off-axis response

Low-mass copper clad aluminum voice coil increases high frequency response and speed

Copper cap and copper ring on pole piece reduce voice coil inductance and distortion

Kevlar reinforced paper cone is lightweight yet rigid and well controlled for cleaner bass


PRINCIPAL OF OPERATION

The varying current entering the FRX motor from your amplifier creates a varying magnetic flux in an air gaped grain-oriented silicon steel laminated core via a primary coil winding and thus a magnetic field through a secondary winding is developed. This varying magnetic field induces a varying electromotive force (EMF) in the secondary winding called mutual induction. Once this secondary winding is properly tuned with a resistive load, AC current is allowed to flow to through this air-gaped circuit via the primary and out to the voice coil. Since the EMF at a given flux density increases with frequency, the secondary (tuning coil) absorbs the artificial rise in response and ringing caused by the high strength motor assemblies used in this type of low mass driver. Despite appearances, when the tuning load is removed no current can flow to the voice coil.

This exotic approach to magnetically coupling current from the amplifier to the voice coil is what gives the FRX it's uniquely smooth and highly present sound.

This approach works by designing a driver that is over the top in high frequency projection and then offsetting it with electromotive force. The result is smooth linear response without loosing the hyper speed and insane detail that comes from the overly strong neo magnet.

The FRX design also brings significant if not profound improvements to the overall phase angle and sense of timing and pace when compared to normal drivers. I believe it is part of what brings absolutely lucid imaging to the table when a pair of these are used with good tube amplification.

Visit the Decware site http://www.decware.com/newsite/FRX.html .

Acoustat III







Steve Jobs with a pair of Acoustat speakers.

I need a pair of speakers for my living room so I'm trying to figure out what i want to experiment with next perhaps a pair of quads or RCA LC1 or even a 604 based system.

Friday, December 31, 2010

Thursday, December 30, 2010

RCA MI-12499 Two Way System Fec 1952

Another vintage RCA I can dream about finding. This is a great looking speaker. It could be the start of a good mono system.

Wednesday, December 29, 2010

Goodman King Of Audio

Goodman King of Audio by artist Hiroshi Araki. This is beautiful. Robot audio :)


JBL Hartsfield

A beautiful creation and the JBL response to the Klipschorn. I'd love to compare the two.







Monday, December 27, 2010

Saturday, December 25, 2010

E.C. Wente Patent

From the really cool patent dept.

Merry Christmas or Gary Crimble Beatles Xmas Message



And because the Sgt Pepper costumes remind me of Xmas.


Just because it rocks.

Friday, December 24, 2010

Retro Hi-Fi Girl Friday

Found another Julie Newmar from this series.

Thursday, December 23, 2010

Tannoy 1976 Ad

HiFi toon

Wednesday, December 22, 2010

High Fidelity by Craftsmen Ad

Austin Record Scores

Well the Austin trip was a blast as usual. Saw some great live music and hit a couple record stores. Record shopping was cut short due to credit card being stolen which was a major bummer but a decent haul at least. I managed to hit End Of An Ear and Breakaway but my card was stolen before I hit Antone's Records. I went to a few other stores I won't name but because their prices were just insane.

End Of An Ear


Breakaway Records


Double LP Analog Africa set.



Triple LP Soundway Record set.


Triple LP Soundway Record set.


Double LP Soundway Record set.


Worthy Records reissue. Mulatu is one of my favorite vibe guys.


I picked this up in a thrift store. How could I leave it lol.


This was the bargain of the trip $5 1956 Beat Tropicale.


I also hit a large Arthur Lyman stash. I'll only post one of these but it is a xmas record. I typically hate xmas music and this is only my second xmas record. This is a good one if you are into exotica.