Description

This is a weird system.

I'm a tube guy, you see; but seven years ago the winds of circumstance blew into my room a pair of 1993 B&W Matrix 800s.  So I'm enjoying a (quixotic?) journey to make them sing with valves.  They're designed to mate with big solid-state iron, but surprisingly are 93 dB efficient and drop to 3.4 ohms at lowest.  

I took care of the bottom octave-and-a-half with a pair of REL 212/SE.  They are amazing.  Then with the low end a solved problem, we made our first amp upgrade in a decade:  The Ayon Spirit III Mk 4, a KT150-based push-pull with 65 watts a side.  It's settling in nicely.

I'm delighted with my DAC, a PS Audio Directstream with ethernet rendering from an internal Bridge II. Recent upgrade of its power cord, to an Audioquest Tornado, underscored the importance of source; it was a two-second, no-question improvement.  You can't *improve* the signal downstream from your source -- you can only hope not to muck it up.

Roon on an iPad ties the whole thing together and sends me down a rabbit-hole of discovery nearly every time I sit down.

Comments and suggestions are welcome.
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Components Toggle details

    • Bowers and Wilkins Matrix 800
    Perhaps the finest speaker that could be bought with money in 1992.  (My friend reminds me that you can drive a Honda Civic off the lot today which will smoke a 1992 Lamborghini.)
    • Ayon Audio Spirit III Integrated Class A
    65 watts per side in Pentode mode.  KT150 power section.  Zero negative feedback.
    • REL Acoustics 212SE
    Precision and power.  I use a high-level connection from the amp, and dial the crossover and volume low enough that you can't locate the subs with your ears.
    • PS Audio DirectStream DAC with Bridge II
    This thing is stunningly good for the money.
    • PS Audio Power Plant Premier
    It doesn't have the current to feed an amp, but on source components it's a no-brainer night-and-day improvement.  No problems with this unit for nine years now.
    • MIT Cables Oracle v2.1 spk
    From 2003, custom-terminated at the factory for bi-wiring the 800s.
    • AudioQuest Tornado Source
    From regenerator to DAC.
    • AudioQuest Thunder Power Cord
    From wall to amp.
    • AudioQuest Water XLR interconnect
    From DAC to amp.
    • Pangea Power Cords AC-9
    AC-9s from wall to Power Plant Premier and from wall to subwoofers.
    • Small Green Computer Sonicorbiter SE
    i5 NUC runs Roon Core server in a separate room.
    • Blue Jeans Cable Ethernet Cable, Cat 6a
    This cable blew away the MonoPrice Cat 6a it replaced.  Highly, highly recommended.
    • Boltz Custom
    Not the last word in isolation, but I let the wife pick this one for aesthetics. The glass shelves rest on DIY norsorene half-globes from a scientific supply company.
    • DIY Absorption Panels
    Three hand-wrapped panels of 2"-thick Owens-Corning 703 fiberglass.  They're positioned to kill the first-reflection points on the right wall for the right and left speakers, as well as tame some echo behind the left speaker.
    • GIK Acoustics CT Alpha Series Corner Bass Trap
    In rear corners.
    • PorterPorts AC Outlets
    Another product that hits my sweet spot for price to performance.
    • Melody (Onix) SP-3
    My first hifi purchase, a $500 find on Craigslist!  38-watt push-pull. Tubed with Russian NOS 6P3S-E's in lieu of 5881s. I shall never part with it.

Comments 41

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Owner
Hahaha thanks Jon, it was neat to get a nod from Steve.

cymbop

Owner
Thanks Rix!  I'm lucky to have a wife that likes minimalist design, even when it's maximum size. ;-)  She digs their looks so much I think I may never be able to convince her to try a different speaker.

I'm an amateur bassist, so yeah, got to get that bottom end right.

The Ayon amp has been here over a year and it is a peach.  Class A and no negative feedback means it doesn't have iron-fisted control the Matrix 800 woofers; but on the flip side I've got immediacy and imaging for days.

What kinda factory keeps a PS DAC laying around?

cymbop

Owner
@jond well once we're vaccinated please let me know if you ever make your way to South Carolina.  We'll have ourselves a session.

cymbop

Owner
@jond holy crap!  I'm not a real fan 'cause I lost track of my definitive count after 40ish shows :-).  It's possible you've seen more Phish than any Jon not named Fishman.

cymbop

Owner
Thanks @jond !  Yeah the 800s might not work in your beautiful space!  :-)  

How many shows ya been to?

cymbop

Owner
Thanks Tvad. ;-)  I know it appears capable of blowing you away like the Maxell ad guy, but with tube power it sounds more delicate than it looks.  I'd bet our systems sound more like each other than anybody would guess.

cymbop

Owner
Thanks, TJ!  Like you, we tried really hard to build a listening room that's also a living room.

The Zus ended up with the former owner of the B&Ws.  They were a lot of fun, and great transducers for $1000.  But there's hardly a comparison.  Tone is good and dynamics are lively, but they don't cast images so well and they're not quite as efficient as the company would have you think.  

The Matrix 800s are just a different league of a thing.  With 65 watts of tube power, they sound incredible at listening levels up to about 85 dB, but can lose some image focus if I get greedy for more volume.

cymbop

Owner
Thanks for sending it, Toro!  Your print has found a happy home.

cymbop

Owner
Ketchup, It's funny:  I don't listen to much recorded Phish on the hifi.  In terms of studio recordings, Billy Breathes is tops though I have a soft spot for most of Fuego as well.  For live recordings, a big yes on the Island Tour in '98 and generally anything in '97.   But perhaps my favorite of all is the outtakes from the 5/7/98 Bearsville Studio sessions.  Give a listen to Limb by Limb and NICU as works in progress!

We do a lot of Couch Tour through the hifi.  We put a computer monitor on a stool between the speakers, and USB the audio feed into my DAC.  It's a lot of fun.

cymbop

Owner
Boy-lah, I made the panels from OC-703 fiberglass and wrapped them with custom fabric.  The little orange screw-in discs on back are from ATS.  I have picture-molding across the top of my walls, so moving the panels around was a cinch.  I started with the placement at first-reflection points and then tuned by ear.

cymbop

Owner
It was a blast indeed, Zephyr. Can't wait to hear your rig in the near future.

cymbop

Owner
CT, He'll take the 800s back in a day or a year. Who knows! I kind of like that; it reminds me not to take them for granted, even for a minute. I enjoy every evening I get to spend with them.

Gadman, the PWD can be found at half MSRP since PS Audio will be coming out with a DSD DAC in a few months. I can't recommend it highly enough. Last night I listened to Tony Rice's collaboration with Norman Blake and it completely stole my face. I was swept away by the feeling that I was in the room with the performers. The PWD gets music right, period.

cymbop

Owner
System edited: Big System Edit: I've become the temporary custodian of a pair of B&W Matrix 800 speakers. They are sensitive enough to be driven quite capably by my little tube integrated, which is kind of a hoot. Also picked up a PS Audio Percectwave DAC MkII, and it is a game changer. Frequency extension through the stratosphere, but in a completely liquid and non-fatiguing manner. I can hardly stop listining lately.

cymbop

Owner
Hey Chris, yeah: I got the Zu's about 1.5 years ago but neglected to update my system page until now. For $1200 speakers, they are very, very good. I understand that Zu will unveil a Mk. II Omen in the next couple of weeks and will offer an upgrade kit with nano driver, tweeter, and capacitor. I plan to jump on that when it's available.

Buddah sits there to 1) remind me that this is all about being present and experiencing music, rather than fretting over gear and 2) cover the amp's blue LED that beams in my face while I'm listening in the dark!

cymbop

Owner
Oh, that door to the porch stays well-locked. :-)

I like the PPP and have had zero problems with this unit for two years now. My prior home had two dedicated lines, and the integrated amp sounded better straight into the wall -- more lively and lit up. For digital, it's great.

cymbop