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Stereopal Featured
System:
Kenneth Shum
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System Components:
CD/SACD:
Marantz SA11S1
Crossover:
Yamaha Digital D2040 4 way stereo (24db/oct slopes)
Amp 1 (Tweeters):
DIY SET 45/2A3 monoblocks
Amp 2 (High Mid):
Quad II monoblocks
Amp 3 (Low Mids):
DIY SET 300B amp monoblocks
Amp 4 (Bass)
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Mcintosh 240 6L6/KT66 PP amp
Amp 5 (Line pre amp):
DIY SET 45 with input & out transformers
Speaker Details:
Tweeters:
Dukane Ionovac plasma - 8khz+
High Mids:
Vitavox CN157 dispersive with Altec 288-16G drivers. - 1khz to
8khz.
Low Mids:
Vitavox CN129 220hz Multicell horn w/ Altec 290-4G drivers- 280hz
to 1khz.
Bass: Onken W with dual Altec 416-16Z woofers <280hz.
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Kenneths Comments:
Music I like:
Classical jazz, Blues, 60's-70's rock, baroque Classical
General:
My current system is based on the 4 way Onken systems I had seen
in the Japanese MJ magazines. Since the wooden Onken horns were almost
impossible to get and way too expensive for my blood, I decided to use the
Vitavox components (salvaged from a local theater) you see here.
I had just about completed assembly of the whole system when I
got posted to the Middle East for work. As a result, much of the tuning hasnt
been done, but the first impressions were pretty positive, especially the sense
of scale. Jazz trios sounded small & orchestral works big. Excellent!!
However, a couple of months ago, I did manage to get back home
for a short vacation and added the; Dukane plasma tweeters (replacing JBL 2405),
Sierra Brooks round wood 500hz horns with Vitavox S2 drivers, the PS Audio P600
& P300 and Mogami 2803 OCC interconnects.
Future plans:
Finish tuning it !
I may make some changes down the road, such as:
Upgrading all the power cables to a special type with ferrite powder
impregnated insulation. (I already have the spool of wire, but just need to get
home and do it)
DIY solid silver speaker cables. Im planning to buy the stuff in
bulk, insulate (Fiberglass tubing) each conductor individually and braid.
Replace the MC 240 with a dedicated solid state bass amp.
Actually this amp was almost complete when I had to go overseas. If you look at
the main picture, it is the lower most component in the rack with the blue
capacitors.
Move the SET 300B monoblocks to high-mid duties and use SET GM70
monoblocks for the mid-lows. One of the completed monoblocks can be seen in the
main picture, left bottom.
Get my turntable (Licensed Western Electric 12D) setup.
Tweaks:
The rear wall behind all the equipment has been treated with 4
inches of mineral fiber damping material and 2 inches of paper pulp soft board
for absorption and undulating strips
of vertical MDF boards for refraction.
C37 lacquer on all the drive unit diaphragms.
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45 / 2A3 Amplifier & Quad II
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DIY 300B Amplifier |
45 Line Preamp |
 Stunning Horns
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Vitavox. |
 Plasma Tweeters |
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