Description

Room Treatment
5/2016 - New room treatment with absorption for main room modes and lots of diffusion. Now working on improving lateral first reflection room treament. 
Results tested with my ears and with Earthworks M30/Roland Quadcapture/REW. 

Performed several mods to the Dunlavy SC-VI speakers: 

(A) External crossovers with original circuit topology:
     (i) upgraded caps and inductors to Duelund CAST copper for the main path,
     (ii) all resistors to Path Audio (sound better than Duelund cast in my crossover),
     (iii) Duelund RS caps for the secondary path and
     (iv) Duelund cast/Mylar for the 220uf in the secondary path,
     (v) Duelund cast silver bypass caps for high and mid CAST copper caps,
     (vi) Changed binding posts to Furutech FT-806R.
     (vii) Kept the two original crossovers for reference, and
     (viii) Final form of external enclosure and vibration control completed in 2017.
     (viii) Put the crossovers on top of two Finite Elemente Pagode Master Reference Mk.II

(B) changed the tweeters to top of the line Seas Crescendo (listened and measured frequency response and impulse response - great improvement, if they did not sound and measure better I would have put back the original Vifa tweeters - yes, this is a radical change),
 
(C) Plan to replace the internal rewiring of the speakers with top hook up wires from Neotech and Mundorf. 

Thanks for your suggestions of additional changes. 

SYSTEM HISTORY: 

DIGITAL SOURCE
**  Taiko Extreme 8TB with USB Card (7/2022).
** Totaldac Server (2/2018) upgraded to Totaldac Sublime Reclocker (6/2023)
Innuos Zenith Statement 4Tb as Roon Core (2019)
Innuos Zenith SE as NAS (2017)
Caps Zuma with two Mojo Audio Joule III - one for 12V (main) and one for 9V (USB) (2013) 
Mac Mini 8gb, i7, 256gb SSD (2011) 
Mark Levinson 37 (1995) 
Accuphase CDP (1994) 

DAC
** Totaldac DAC Sublime (6/2023) with Live Power 
Totaldac Twelve SE (2/2018) w/ Live Power.  Upgrade to Mk.3 (7/2022).
Playback Designs MPS-5 (2012) 
Playback Designs MPD-5 (2011) 
EMM Labs DCC2 SE (2007) 
Mark Levinson 360S (1995) 

PREAMP
**2x Totaldac D1-Driver Sublime XLR (2024) w/ Live power
2x Totaldac D1-Driver XLR (2021) w/ live power 
CH Precision L1 (2017)
CH Precision X1 (2017)
Krell Phantom (2011) 
Levinson 380S (1995) 
Audio Research LS3 (1994)

POWER AMP
** CH Precision M10 stereo (9/2022)
Krell FPB 750mcx monos (2011), re-capped (2011), re-capped with Nichicon Gold (2020), replaced original fuses with SR Blue Fuses (2020).  Sold 9/2022
Krell FPB 700cx (2002) 
Krell FPB 600c (1999) 
Krell KSA-300S (1995) 
Aragon 8008 (1994) 

EXTERNAL PASSIVE CROSSOVERS
 
** Duelund components (2013-2014) 

SPEAKERS 
** Modded Dunlavy SC-VI (2013-2014) 
Dunlavy SC-VI (1998) 
Dunlavy SC-V (1995) 

XLR INTERCONNECTS
** 1 pair Purist Audio Design Diamond 35th Aniv. XLR interconnects 1m
** 1 pair or Echole Limited Edition Model 2 XLR 7ft (2021)
1 pair of Echole Limited Edition Model 2 RCA 3ft (2021)
1 pair or Echole OMNIA XLR 7ft (2017)
1 pair of Echole OMNIA XLR 3ft (2017) 
1 pair of Echole Signature XLR (2013) 
2 pairs Echole Obsession XLR 7ft (2011 and 2013) 
2 pairs NBS Black Label II (2012 and 2013)  (FOR SALE - EMAIL ME)
NBS Omega 0 (2007) 
NBS signature II (1995) 
Kimber (1994)

DIGITAL INTERCONNECTS
** 2x Echole Limited Edition Model 2 AES-EBU for Totaldac DAC mk3 (2021)
** 1x Transparent Reverenc XL AES-EBU for Totaldac reclocker mk2 (2022)
** Intona Ultimate USB 1,5m cable from Taiko to Totaldac (2022)
** Sablon Reserva Ethernet Cable from  to Totaldac (2019)
Totaldac Gigafilter USB cable at server/reclocker (2019)
3 Echole Limited Edition AES-EBU for Totaldac DAC (2019)
3 Echole Omnia AES-EBU (FOR SALE - EMAIL ME)
3 Kubala Sosna Realization AES-EBU for server and DAC (2018)

SPEAKER CABLES
** Kubala Sosna Realization 2m (2018)

Kubala Sosna Elation (2015)
NBS Black Label II 4ft (two pairs) (2011) (FOR SALE - CONTACT ME)
NBS speaker jumpers (2011) 
NBS Omega 0 (2007)
NBS signature (1995) 
Kimber 8TC (1994) 

POWER CABLES
* 3x Nordost Odin II.  2x20amp for CH M10 and 1x15amp for Totaldac Drivers live power
* Echole Limited Edition Model 2 Power Cable 6ft (2020) for Totaldac D1-Drivers XLR
* Echole Omnia Power Cable 6ft (2018) for Totaldac live  power supply for DAC
* Echole Omnia Power Cable 6ft (2018) for Innuos Zenith Statement
Echole Omnia Power Cable 6ft (2018) for CH X1 
Kubala Sosna Realization (2018) for preamp (X1)
Genesis Absolute Fidelity (2012) for DAC  (FOR SALE - EMAIL ME)
Kubala Sosna Elation (2015) for Preamp
several NBS Black Label II (2011) - Other components (FOR SALE - EMAIL ME)

POWER CONDITIONING
** Synergistic research orange fuses for totaldac power supplies and Innuos (2021)
** Telos Audio Design GNR 3.1 Grounding Box (2019)
** Totaldac Twelve directly to Futurech GTX-X dedicated 220V line (2018)
** Fuse box with Siemens SITOR fuses to dedicated circuits (2015)
** FPB750mcx monoblocks and CH L1+X1 each to a dedicated 220V circuit, three in total with Furutech GTX-R(2013)

**PS Audio P10 (2014): for the Innuos Zenith SE, projector, Apple TV and other components (except for monoblocks, pre, dac and phono that use no conditioning and have dedicated lines)
Synergistic Research Blue fuses for Power amps, preamp and DAC (2018-2020)
Synergistic Research Black fuses for preamp, dac and phono (2016)
Playback designs DAC, Mastergroove mk.II phono directly to Futurech GTX-X dedicated 110V line (2015)
Audience AR6-TS (2011) sold 
RSA Elgar 220V (for preamp) no longer in use (FOR SALE - EMAIL ME)
PS Audio Powerplant (2008) no longer in use
PS Audio P30 (1998) no longer in use

ACTIVE CROSSOVER for two pairs of mono amps (no longer in use)
Pass XVR-1 (2013)

ANALOG FRONT END (gave up on analog in 2017, focusing on upgrading digital)
Technics SP10 mk3 120V modded by Steve Dobbins (sold 2021)
Schroder LT Tonear (sold 2021)
Lyra Atlas (Sold 2017)
Tom Evans Mastergroove mk2 (Sold 2017)
Read more...

Room Details

Dimensions: 43’ × 15’  X large
Ceiling: 9’


Components Toggle details

    • Taiko Router, Switch, and DC power distributor
    Taiko router, Taiko switch, and Taiko DC power distribuitor with Plixir Statement 12V DC power supply and statement DC cable. All linked to a dedicated fiber modem and separate internet supplier. Completely separate, dedicated audio network.
    • Taiko Extreme 8TB with USB card
    Taiko Extreme running XDMS Alpha
    Fiber Cable box: GBIC SFP with ifi Elite linear powe supply
    Router/switch:  Taiko Rounter, Taiko Switch and DC distributor with Plixir Statement
    Ethernet cable between Fiber Cable modem and Taiko Router:  Synergistic Atmosphere X ethernet cable
    Cable cable between Taiko Router and Taiko Switch: Taiko dac cable
    USB from Taiko to Totaldac:  Intona Ultimate 1.5m USB cable.
    Daisa platform
    Transparent Opus Gen 6 power cable
    Purchased a Taiko Olympus XDMI.  Wating for delivery 1S2024

    • Intona Ultimate 1.5m USB cable
    Between Taiko Extreme and Totaldac Reclocker Sublime
    • Totaldac Sublime Reclocker
    with livepower power supply
    • Transparent Reference XL AES-EBU cable
    Transparent Reference XL AES-EBU cable from Totaldac Reclocker Sublime to Totaldac Sublime DAC.
    • Echole Limited Edition AES-EBU Model 2 interconnects
    Two Limited Edition Model 2 AES-EBU from the dac reclocker to the two DAC boxes.
    • Totaldac Sublime DAC
    Fantastic DAC. The Sublime upgrade improved dynamics, bass detail, and timbre realism.
    • Totaldac Live Power Power Supply for Totaldac sublime recloker, and sublime DAC
    Five output Totaldac live power supply for the Totaldac Sublime DAC, and sublime reclocker.  Transparent Opus Gen 6 power cord.
    • Purist Audio Design Diamond 35th Aniv. XLR interconnects 1m
    Between Totaldac Sublime DAC and Totaldac Sublime Drivers
    • Totaldac Sublime Drivers XLR
    Two Todaldac Sublime Drivers XLR between DAC and CH M10
    • Echole Limited Edition Model 2 XLR 7ft
    from the Totaldac Sublime Drivers to the CH Precision M10
    • CH Precision M10 stereo
    Fed by two Nordost Odin 2 20amp cables.
    Two Critical Mass Systems Olympus Ultra amp bases
    • Kubala Sosna Realization 2m Spades
    Great speaker cables from top to bottom
    • Duelund CAST external crossover
    Pair of external crossovers for the Dunlavy SC-VIs using Duelund CAST caps and inductors (for the main signal path), Duelund RS caps (for secondary paths). Path Audio resistors.

    The two external crossovers are now on top of Finite Elemente Pagode Master Reference mk.2 platforms (8/2019).
    • Dunlavy Audio Labs SC-VI
    with upgraded Duelund external crossovers, upgraded tweeters, and other upgrades.
    • Nordost Odin 2 power cords
    Two power cords for the CH Precision M10. One power cord for the Totaldac Drivers mk2. power supply.
    • Echole Limited Edition v2. power cord
    Power cables for the totaldac Twelve mk2. live power.
    • Critical Mass Systems Olympus Ultra
    Two amp stands for the CH M10
    • Silent Running Audio Scuttle Mk.3 rack
    SRA Scuttle mk3 rack for the DAC and preamp. Makes a big difference.
    • Finite Elemente Pagode Master Reference Mk.II Platform
    Two Pagode Master Reference plaforms under the external crossovers improved timbre and soundstage.
    • Varios Accoustic Treatment
    Wall on back of speakers:
    - Center with 3 difusers
    - Center with lateral difusers
    - Center with 150hz absortion for room mode
    - Corners: two 40hz ressonators for room mode
    Ceiling:  Difuser
    Side wails: Two Difuser/absorption for first reflection - movable
    Floor: Rug and large foot rest
    • Screen Innovations Solo 3 Slate 1.2 133"
    Top notch motorized ALR screen
    • Dreamvision EOS Signature L 2023 projector
    The Dreamvision EOS Signature L 2023 is a modification of the JVC NZ9 8k laser projector.
    • Kaleidescape Strato C + Terra Prime 22TB
    Kaleidescape Strato C player with Totaldac spidf coax cable
    Kaleidescape Terra Prime 22TB
    • Apple Appletv X
    Extensively modded Appletv. Feeding one of the two HDMI inputs of the projector.
    • audiodharma Cable Cooker Anniversary Ed. 3.5
    Cooks interconnects, cables, and capacitors
    • Earthworks M30, Roland Quadcapture, REW
    Room accoustic measurement, for speaker positioning, room treatment, and maybe DRC
    • Cara 2.2 plus
    Room Simulation and positional optimization software

Comments 136

Great system, I almost bought a small pair of IV's HA!
Thats some great stuff you have there and good luck getting the room to perform the way you need, cheers

chadnliz

Owner
I am excited, I may have found the solution for my 31hz (10db)and second order 62hz (5db) room modes: Bag End E-Trap ($1600). I have read a lot about them and seem it will solve the problem. Now I have to get one and have a friend bring to Brazil! I am waiting for the PS Audio PWT which is promising, and also thinking about upgrading the Levinson 380S to Levinson 32 in the future.

vn101606

Owner
Jimateo,
Whenever you visit Sao Paulo, Brazil, you are welcome to come listen to it, just send me an e-mail before arrival.
Cheers,
Vicente

vn101606

CAN I COME OVER FOR A LISTEN!?!?!?!?
APPEARS TO BE AN INCREDIBLE SYSTEM. I WOULD LOVE TO COMPARE THE SOUND TO MY TUBE EQUIPMENT, JUST TO HEAR THE DIFFERENCES.
CONGRATS ON A 1ST CLASS SYSTEM, VICENTE!!!!!

jimateo

Owner
System edited: I moved to a new apartment, with a smaller audio/video room, which is a problem with my Dunlavy SC-VIs speakers. The room is (in meters) 5.2m(d)x4m(w)x2.77m(h). The front and back walls are treated so the mids and highs are exceptional. The measured frequency response of the speakers in this room are within +- 3db for frequencies above 120hz, the sound engineer was amased by the sound and the measurements. However, it has a 10db room mode at 31hz and 5db at 62hz. I used to have a TACT, but I don't find it transparent enought, so I am not using it anymore. The RGPG sonex plate type II only goes down to 40hz so it won't solve this problem. I am considering purchasing the Rives Audio Parc. Anybody with experience using a Parc?

vn101606

Owner
System edited: I just replaced my Levinson 360S. I purchased the EmmLabs DCC2 SE DAC. I first tried it as a DAC only and could hear improvements throughout the frequency range, but more notedly in the bass region. I then conected the DCC2 SE directly to my Krell 700cx using its preamp outs, however, the sound using the Levinson 380S as a preamp was clearly superior, much more detailed, so I am using the DCC2 SE only as a DAC.

vn101606

Owner
Dear friends:

Jimateo - Congrats for your SC-VI. I believe I have the manuals, since I bought my SC-VI (#160) new. I will look for them, and after I find I will scan and send to you. The best place to read about them is really the Stereophile review, still available, with many useful comments.

Pdreher - I am moving in three weeks to a new apartment. The room has much better accoustics and has room treatment in the front and back walls, besides an accoustically isolated wall and door. I had an accoustic engineer model the room and propose the treatment. After installing the equipment we will measure the response to see if it is necessary to install the RPG Plates type II, or not. I will post a photo after I move.

Regarding the pre-amplifier, I noticed a great improvement in sound with the Levinson 380s after using the PS Audio (P300 and now PPP). I just bought the EMM Labs DCC2 SE, so I will experiment with it as a preamp in comparison with the Levinson, but I have to pick up the EMM Labs in Miami and it may take a few months, since I live in Brazil and don´t go there often.

Shadorne - The Krell 700cx provided a great improvement in the sound of the SC-VI, compared with the 200S. I use a Stuart Filmscreen 100" firehawk with a Sharp Z10000, which I plan to upgrade to a Sony VW200 soon.

Cdma - thank you for the suggestion, but it would be hard to bring a new power amplifier to Brazil to test it.

vn101606

In terms of audible improvement/cost, IMO, Pass lab XA-???.5 will be a better option.

??? can be 100, 160 or 200, up to your budget.

cdma

Nice synergy - the Dunlavy's sound great with Krell. This system must be about as transparent as it ever gets - wonderful choices!

I see a screen - are you building an HT system too?

shadorne

Great gear in a great looking room. Very impressive system. Congratulations! My only suggestions are to keep experimenting with room treatments and consider adding a tubed preamp.

pdreher

I love my sc vi's! I was wondering- what are your thoughts on these speakers?
Would you happen to have a manual on them?

jimateo

Showing 126 - 136 of 136 posts