Description

Hifi is a journey, not a destination.

I played piano, alto sax and clarinet, subscribe to the symphony, and enjoy the jazz and blues scenes in Seattle. I'm familiar with live music. My music interests span from classical to jazz, blues, and other stuff (rock, folk, funk, electronica, etc). Favorites include Michelangeli, Argerich, Furtwangler, Montoya, Piazzolla, Melvin Taylor, Junior Wells, Lionel Hampton, Jimmy Smith, Brubeck, Jeff Beck, Stanley Turrentine, Jeff Buckley, (early) Chicago, Zeppelin, Cream, Groove Armada, Massive Attack, Nightmares on Wax, Daft Punk, etc., depending on mood.

I've been interested in hifi since I was a kid. Pioneer in the 70s, Counterpoint in the 80s, Audio Research in the 90s... I grew cynical of the direction the hobby took in the 2000s. For this system, I wanted to express my personal sonic priorities beyond what is available in the commercial market. My goal is to communicate music's impact, soul, emotion, and nuance. I want my system to play with alacrity, gravitas, affection, protest, or just funkin' good times. If it can't conjure a wide range of emotional reactions, than it simply won't satisfy. After years of effort, this system plays small-scale music with softness and delicacy, while large-scale music like Rachmaninoff, Mahler and Zepplin is sublime, projected with bone-crushing power like a big Steinway D or Audi RS6.

Creating a memorable sound system is like cooking a delicious meal. In the beginning, I bought great ingredients, all the components and parts that comprise my playback. I quickly learned that ingredients without experience and talent aren't enough to create a memorable sound system. It took many years, failed experiments, and a few successes to get here.

Experiencing thoughtfully-implemented multi-way horns was an epiphany. My high points are Josh's wonderful Electronluv system at VSAC 2003, and Romy's Macondo in Boston.

The speakers are the heart and soul of my system. I named them Shibusa, a Japanese word describing an aesthetic of simple, natural beauty. Shibusa refers to things that exhibit: Elegant simplicity. Effortless effectiveness. Understated excellence. Beautiful imperfection. They began as Edgarhorns, purchased new in 2005. After years of learning, stupid mistakes, and epiphanies, I could write a book on horn speaker design and still barely scratch the surface. Horns are like F1 race cars - silly high performance under skilled hands, while unforgiving of fools (I made my share of foolish mistakes). My Edgarhorns evolved with the addition of stereo sub-bass channels (Danley Sound Labs horn subs, used in IMAX theaters), upper bass (full-size 142 hz tractrix horns from John Hasquin loaded with Fane Studio 8M drivers), mid-range (Coral M-100 drivers in 400 Hz tractrix horns), and HF (magnesium Fostex T500A Mk II), and crossovers and amps to support them. There is literally nothing leftover from the original Edgarhorns, but they were a great education.

There are a total of 10 drivers and channels (5 per side). All filters except sub-bass are first order, with both speaker-level and line-level filters. First order filters are beneficial to minimize phase spinning and other time domain pollution, but require better performing drivers due to more overlap between the drivers. Integrating all the horns, drivers, amps, and crossovers in my room was challenging, more difficult than I ever anticipated, and a required a very long learning curve. I use both measurements and subjective listening to balance speaker placement and individual channels. Listening room is 16' x 18'. The effortless and deep-bass, startling dynamics, and full-range clarity distinguish Shibusa from conventional speaker designs. There is NO harshness or 'horn' sound in Shibusa, according to visitors - even those with anti-horn bias.

Without the kind and generous support of horn thought-leaders like Dr. Bruce Edgar, John Hasquin, Steve Schell and Rich Drysdale, Romy, Jeffrey Jackson, and ESO, it would have been very difficult for me to achieve as much as I have. Thanks to all who shared in this journey!
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Components Toggle details

    • Shibusa Horn Speakers
    Having learned and designed these horns over a 6 year period, I could write a book....

    Shibusa is Japanese for the aesthetic of simple, natural, and unobtrusive beauty. The Shibui spirit captures my goals for music reproduction.

    4-way speaker system
    ~ 107dB sensitivity
    First-order crossovers
    Alnico magnets
    Time aligned

    HF: [greaterthansign]10kHz
    Fostex T500AMkII horn tweeter

    MF: [greaterthansign]800 Hz
    Coral M-100 compression drivers loading 600Hz tractrix horns

    Lower Mid Range: 120 - 800 Hz
    Fanse Studio 8M loading 142 Hz tractrix horns, built by John Hasquin. The horns are 30 inches in diameter, 27" deep, with 6" backchamber. They weigh around 140 pounds each. Sub-Bass: <100Hz Danley TH-SPUD tapped horn subs Crossover: 1st order Caps - Duelund and Mundorf SO Coils - Erse Copper foil (2005)
    • Lamm Industries ML-2 SET (modified)
    Dedicated 18 W SET for [greaterthansign] 100 Hz channels.

    Replaced unreliable, failure-prone stock 6C33C tube sockets with Johnson sockets.
    6/2013 Added a HP PLLXO filter to the input stage to remove large value caps from speaker level crossover and dump excess bass from the upper bass horn. Phil Marchand kindly and generously provided support with advice on how to best implement. Settled on a Rike 0.047uf for a first order filter at 77hz.
    10/4/2013
    - added -15dB voltage divider at input stage to match gain structure with high sensitivity system. The silence is absolute - can not tell if the system is powered on, even adjacent to speakers.
    - the divider network increased input impedance from 41k to 46k Ohms
    - increased cathode resistor value to 168k Ohms to improve V1 voltage regulator bias stability
    (2009)
    • Danley Sound Labs TH SPUD Subwoofers (x2)
    Two tapped horn subs. Crossed to main speakers via Dahlquist DQ-LP1 bass filter @3rd order, 85 Hz. Powered with Crown K2 power amplifier (2012)
    • Crown International K-2
    Dedicated subwoofer amplifier driving Danley tapped horns.

    500w/ch in to 8 ohms, damping factor [greaterthansign] 3,000 from 10 - 400 Hz.
    Bone crushing bass!
    (2013)
    • Dahlquist DQ LP-1 Sub Bass Filter (modified)
    Analog 3rd order low-pass filter for integrating subwoofers with main speakers.

    Modified with quieter, high capacity, outboard PSU, replaced plastic PC mount RCA sockets with sturdier chassis mount sockets, replaced signal caps with modern film caps

    Replaced Velodyne SMS-1 digital crossover (11/2013)
    • Lamm Industries L-1 Preamp (modified)
    Lamm's original linestage. Tube regulated and rectified power supply and solid-state signal path. I owned the two-box L2 at the same time and kept the L1 based on it's slightly warmer tone.

    Modified by replacing volume pot with a Goldpoint stepped attenuator.

    (2007)
    • Micro Seiki SX-8000 Turntable
    200 lb. turntable with 45 lb air-suspended platter and HS-80 high speed flywheel. The bass digs deep and punches as hard as granite. Supported on Vibraplane air suspension platform. (2009)
    • SME 3012R / Ortofon SPU-85 Limited (Stereo)
    SME 12" arm and limited edition SPU for stereo.
    • Micro Seiki MAX-282 / Denon 103S
    For non-pristine LPs
    • SME 3012 S2 Ortofon SPU (Mono)
    For mono LPs
    • Vibraplane 2210
    Vibration isolation platform beneath Micro Seiki TT (2013)
    • Bent Audio Mu / S & B TX-103 SUT Ag / Cu hybrid
    SUT, loaded @ 100R with SPU 85th Anniversary cartridge
    • Wright Sound WPP-100 Phono Stage (modified)
    Tube phono amp, separate tube regulated and rectified power supply, copper signal chassis, hand-assembled point to point construction.

    Dead quiet. Not super extended or transparent, but the midrange is beautiful. Very engaging and a joy to listen

    6/8/2014 further parts upgrades: 1) replaced tiny generic 0.1uf mica caps with Mundorf SIO 2) replaced tiny generic electrolytics with Elna Silmics. 5/17/2014 replaced tube rectifier with ss soft recovery diodes. Contrary to expectations, this resulted in very audible improvements in clarity, air, and bass. Will not be going back to the rectifier tube. 10/22/2013 upgraded input with nude Vishay TX2575 47k resistor and copper foil polystyrene 100pf cap
    Modified with Mundorf S/O output caps
    (2013)
    • Peerless 4611-8 / WE 618B SUT
    Rare, vintage, sublime-sounding line input transformers.
    • EAR 834PT (Thorsten-ized) Phono Stage (modified)
    Circuit mods and parts suggestions courtesy Thorsten Loesch: http://www.audioasylum.com/cgi/t.mpl?f=vinyl&m=108318 Implemented all of Thorsten's mods and replaced or removed around 75% of the stock parts. RIAA eq caps: Evox Rifa PFR and Nissei polystyrene Cu film, after living with silver mica. Coupling and output caps: V-Cap CuTF and Mundorf SO PS Caps: Nippon Chemi Con VX and Elna Silmic Resistors: Caddock Mk132 Highs are sweet and shimmery over a floor of bass. I like the balance of warmth, resolution and deep bass (post-mod), with a dash of raucousness the EAR brings. (2008)
    • Museatex BiDat Plus DAC (modified)
    Ed Meitner design DAC, upgraded by John Wright.

    10/20/2013 - removed 16 green ceramic bypass caps from PS.

    (2005)
    • Sonos Digital playback network
    Feeds DACs in both systems. Convenient. Not especially musical
    • Oppo BDP-83 Video
    Plays movies
    • PurePower APS 2000+
    Supplies regenerated power from dedicated 20A circuit to all compenents except Lamm ML-2s

    (2013)
    • Purist Audio Design Dominus (ICs and speaker wires)
    Pain to use due to ridiculous size, weight, and stiffness. Wonderful colorful tone and extended sound, effortless dynamics, with weight and texture. Anti-hifi.
    • Purist Audio Design Dominus Power Cable
    Wonderful - so natural and quiet.
    • Pranawire Satori Power Cables
    05-29-14 Terminated with Acrolink carbon fiber plugs. For Lamm ML2 power amps.
    • Klaudio Ultra-Sonic Record Cleaning Machine
    Contact-less record cleaner using ultra sound technology. No brushes or special fluids. Simply insert an LP, and the machine automatically cleans and vacuum drys. Feels sturdy as a brick.

    This is the most effective and easiest to use RCM in my experience.

    (2013)
    • Audio Control SA-3050A Real Time Analyzer Measurement Tool
    essential!
    • Holm Acoustics Holm Impulse Measurement Tool
    Windows-based measurement software for visualizing loudspeaker and room response
    • SMUG Fuzzmeaure Pro Measurement Tool
    Mac OS- based RTA software tool for visualizing loudspeakers and room response
    • Dedicated Power Circuits (analog, digital, power amps)
    added 3 new circuits to listening room
    • SRA Silent Running Audio VR Series isoBase
    Isolation platforms supporting Lamm ML-2s power amps, Lamm L-1 preamp, Yamaha B2 power amp, and Oppo DVD player
    • Various Equipment Stands SolidSteel, Zoethecus, Target, SRA
    Equipment racks: Zoethecus for digital gear SolidSteel for analog Target for PurePower regenerator

Comments 194

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Hi Scott,
I just did the reverse digital dance. For years I enjoyed various transports with my Wright modded BiDat. I tried all different combos of computer audio, nothing stuck until I plugged an old MacPro G5 into the BiDat via USB converter. I went on a 4 year spree of tweaking and modding this combo with no regrets. That is until I put a CEC TL0 in the system. I had to try it and see if it would live up to its reputation and throw more data at the BiDat than a rip with error correction. This 1990's combo is playing the most interesting digital I have heard to date. The speed of the TL0 is very refreshing, but the amount of new detail is striking. For example the decay of a cymbal strike holds far longer than i have ever heard in digital. It's not unlike analog decay that keeps trailing into the ambience of the room. Very interesting and exciting to hear all this new information I thought didn't exist on the CD. It comes with some problems though. The TL0 is ruthless and exposes everything. This fact combined with my Placette Active Line Stage's transparency is exposing some things I don't like much in other places. It's the classic process when a system takes a step forward, something gets left behind. For me it's the tweeters in my Audio Note AN/E Spe Hemp. The Alnico versions would help a lot, but Peter won't sell them to me as an upgrade. :-( Enjoy your new found digital freedom and keep an eye out for a TL0 or TL0X. Your BiDat has proven to be a great match with the TL0. Of course, this advise is ultimately worth exactly what you paid for it. ;-) Cheers! - Tim

glaesemann