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Edp 's . System
Last Update: April 21, 2002 at 09:11:48 IP Address:
Amplifier: Audio Mirror P-SET Monoblocks with 6C33C power tubes

Houston GM-260 Monoblocks - Push/Pull 6550 based selectable Ultra/Triode operating mode (seems locked in that Triode mode now days). Svetlana 6550C, RCA clear top side getter 12AU7.

Rotel RA-985BX integrated, presently amp section used to feed Focal based sub.

Rotel RA-932 MKII - in 10 year old sons room/setup.

Marantz 2225 Receiver for computer station tunes.

Preamplifier (or None if Integrated): Melos MA-111 with Amperex Orange Globe 6922

Creek OBH-10 Passive Pre - used as motor drive DIY physically connected to volume pot on Melos for remote volume operation
Also used at times for passive pre operation.

Speakers: Many different sets right now.

Main Units - DIY Vifa M26 bass 2ft cube enclosure 31 Hz tune, Vifa 13cm Alinco open baffle mounting, Hi-Vi 6" ribbon tweeter no baffle mounting.

Old Main units - DIY Scan Speak 2905/9500 tweeter/Scan Speak 8545k midbass two way 15 litre enclosure, QB3 reflex tuned to F3 37 hz

Secondary set - DIY Morel MDT 30 tweeter/Focal 5NV4211 midbass. 6 litre enclosure with F3 42hz.

Third setup - Little Whispers DIY Morel MDT 31 tweeter/Focal 5K013L midbass. 6 litre enclosure reflex aligned, tuned to F3 66hz.

Subwoofer - DIY Focal 12V726 woofer in 106 litre SBB4 reflex alignment, tuned to F3 of 24hz Low pass F6 57hz

Computer set-up - DIY Vfia M13SG in 8 litre box tuned to 48hz, Tang Band/GR-Research GR-1 tweeter. 4th order acoustic xover.

CD Player/DAC: NAD 515 player used as Transport
Cal Sigma II DAC, Raytheon 5751 NOS.

Marantz CC-65SE in my 10 year olds soms setup.

Turntable/Phono Stage: Technics SL-Q2, Shure V15MIII cart

Phono stage included in Melos Ma-111 Preamp

Other Accessories/Room/Misc.:
Speaker Cables/Interconnects: DIY Interconnect. Some are 89259 based, some are silver/teflon ribbon cable based, some are Monster coax based.
Long run speaker wire (>40 feet) Good ol Monster XP

Short run (rare occations when pull monoblocks into listening room) DIY Speakerwire. New one is out of copper foil from xover inductors.

Other (Power Conditioner, Racks etc.): DIY equipment rack - FleXy design.

DIY amp trollies - match DIY equipment stand, and included HD wheels.

Tweaks: I tend to dim lights when listening.

Rubber washers in FleXy rack.

Door knob bumper cushions under tube preamp at times.

Good to Great quality xover parts. Poly this, Foil that, Wire wound things.

Use measuring devices less, more confidence in just going with what I hear.

Room Size (LxWxH): 15 x 23 x 8
Room Comments/Treatments: Acoustic Cottage Cheese Ceiling. Carpets. Piano.
Music Preferences and Comments:
Music Used (Genre/Selections): Growing interest in Vocal music. Album/FM/Jazzadelic Rock, New Age, Small Chamber Classical, and that undieing obsession with Cool Jazz.
System Goals/Comments: To DIY as much as my skills allow me, a high resolution, little comprimise at frequency extremes music illusion machine.

Foray into tube based source/electronics has refocused interest in midband performance and vocal selections.

Each of the DIY speakers are to meet a specific design/performance goal
Main - For serious listening only, full scale and dynamics goal, while not excluding refinement on "little girl with guitar" music.

Old Main - best all around in smallest package. Results are the finest DIY creation I have ever made. One of the finest speakers I have ever heard. There are better, and I hope to be the designer.

2nd set - Vocal purity with no grain/silibance/fatigue no matter how old/bad the media

3rd set Little Whispers - No limits on detail/decay, not designed to do vocals, but crystaline, immediate, extended midrange treble for strings, cymbals, bells, hammered dolcema. Exceptional performance at extremely low volumes. Headphone time without center of skull presentation.

System Strengths: Hi-resolution playback with satisfaction of creation via DIY and keeping separate component price less than $1000 each.

Small size with large sound. No more 5 way giants taking up visual space in listening room.

Can have both involving sound and/or hi-fi sound with all the visuals (soundstage, imaging) depending on what is connected to what.

Main system performance makes music effortlessly. Results in quick transition from my "system performance" mindset to "is it time to turn off the illusion machine already".

System Weaknesses: Not yet the perfect xover. Never to be achieved of course.

In triode mode bass is slightly less tight than desired on main system.

Sub performance at rise/fall time (system Q) is comprimised to achieve in room the magic 20 hz. Far from muddy, but would like a lower Q. - As of 2/2002 this has been fixed/addressed.

Yet to cure me of "I think my next project will be...."

Video/HT System: Separate
TV/Projector: Sony 36" ( that whines like a banshee and only 8 months old, nice)
Processor/Receiver/Amplifiers: Nad
Speakers (Center, Surrounds, Sub): DIY dual Vifa based MTM center channels, DIY Vifa based 3 way L/R, Vifa based Rears, DIY Pioneer DVC sub
Sources (DVD/VCR): Stereo VCR
Gift DVD (RCA brand, left over DIVX drives no doubt HA!)
Other HT Gear: Cable box results in best channels for viewing are PBS nature shows.
Comments on HT System: It makes my family happy, but they really could care less about all the HT/multichannel stuff. Kid knows how to play his favorite videos, wife can turn it all on an operate without feeling intimidated.
I got a chance to build 7 speaker setups.

If I could lift the TV, I would throw it out the window to get rid of the whine!

Edit My System

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