"Shadow of The Colossus" build thread

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#281
Legis said:
Yes detached house with two floors. I installed sound isolation double-door between the floors, hifi room is in the basement that is partially under the soil. The separate "guest house" has even greater sound isolation😊

Ushers look so good that I cant put colossus back in anymore😅 The low q sealed setup also does not go deep enough in this big space, with 3-way active would work better.

Old pic with feat. Logans

View attachment 1121934
Click to expand...

Vent the FC-123F02s and put the cabs on massive stands?

1671759061872.png
 
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#283
diyiggy said:
Congrats Legis for the house 🙂 , nice area.

I like the brick walls, were the bricks there or did you add them as decorative ? Ziegler sorta carpets are nice, very warm living room 👍

ahaha the Logans seems toys in front of the Ushers, does it sound better in the mid-treble range ?
Click to expand...

The original builder has done the brick wall. The basement is made of "stone" bars and concrete, the brick upholstery is just for the looks but they are real bricks, not "fashion bricks". Contruction specific english not my strong point😂 This room was originally a billiard room. The main living room is upstairs, i have small white genelecs there😁

Persian carpets are the best. These are huge 3x4m and weight like 60kg per carpet. They are from 80-90's iirc, bought them second hand. They can last for decades or even couple centuries if looked after properly.
 
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#286
Legis said:
Venting them has crossed my mind🤔 Maaybe at some point.
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The FC-123F02 is designed for ported enclosures. What's the capacity of the mid modules, around 250-300 litres?
I'm pretty sure venting the mid modules will lead to good results. 4x FC-123F02 in 300 liter BR gives an almost ideal -3 dB of slightly above 50 Hz.
 
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#288
That is Davis Acoustics that made them on specs (OEM) ? they actually has a famous here in France where they are from : RCA 15 ref something : wooden carbon and T&S parameter very close from the old Altec 😉 . Great for Onken and all....
 
#293
diyiggy said:
That is Davis Acoustics that made them on specs (OEM) ? they actually has a famous here in France where they are from : RCA 15 ref something : wooden carbon and T&S parameter very close from the old Altec 😉 . Great for Onken and all....
Click to expand...
Pick your poison 😉

39-GCA-15-1.jpg39-GPA-15-1.jpg39-RCA-15-2.jpg39-RPA-15-1.jpg

I prefer the last one.
 

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#294
However, I like the parameters of the old version even better:
  • resonance frequency fs = 34 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 97 dB (2,83V; 1m)
  • DC resistance Re = 7,8 Ohm
  • force factor BL = 19,26 N/A
  • voice coil inductance L = 1,1 mH
  • effective mechanical mass incl. air load mms = 84 g
  • equivalent volume of compliance Vas = 238 l
  • total Q factor Qts = 0,35 (Qms=3,92, Qes=0,38)

1672027205899.png1672027228048.png
 
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#295
Ro808 said:
However, I like the parameters of the old version even better:
  • resonance frequency fs = 34 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 97 dB (2,83V; 1m)
  • DC resistance Re = 7,8 Ohm
  • force factor BL = 19,26 N/A
  • voice coil inductance L = 1,1 mH
  • effective mechanical mass incl. air load mms = 84 g
  • equivalent volume of compliance Vas = 238 l
  • total Q factor Qts = 0,35 (Qms=3,92, Qes=0,38)

View attachment 1123063View attachment 1123064
Click to expand...
Great Driver. I have used the 4ohm version and it was lovely.
 
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