Small Room: 604's, 14's, or 19's?

[stlblue]

I think Chrome has one too.. What cabs do you think you want to use then..The 620 or 612 ?

ALTEC 604-8G & 620 ENCLOSURES

Looking for a cabinet maker in St. Louis right now.

I am considering baltic birch for these, but would like a darker finish than I've typically seen such plywood (maybe appleply would be darker?). Are there better sonic alternatives? Not sure I want to add a laminate finish due to added expense.

[bowtie427ss]

ALTEC 604-8G & 620 ENCLOSURES

Looking for a cabinet maker in St. Louis right now.

I am considering baltic birch for these, but would like a darker finish than I've typically seen such plywood (maybe appleply would be darker?). Are there better sonic alternatives? Not sure I want to add a laminate finish due to added expense.

If you want to build 620's that sound like original 620's, you'll have to build them from the same material that originals were built from and damp them as the originals were damped.

Plywood will have different resonant characteristics, and some of the larger surfaces are likely to "ring" unless alternative damping and bracing are used.

I'm sure that ply construction can be made to sound nearly the same as original cabinets. But, it's going to get a lot more involved than just simply following a working drawing.

[zelgall]

Here's a partial TS for a 604:

Buffer[0] Q,Fs Ver 5.00
Completed: Sun Jul 15 12:48:58 2012
Drive level 100.000 % [ 3.599 mA]
Sine,LoZP(LV/LA)->Q/Fs,85 pts
;------------------------------------------------------------------
Re 11.934 ohms
Fs 24.175 Hz
Zmax 227.233 ohms
Ro 51.907 ohms
F0 20.547 Hz
F1 53.580 Hz
Fmin 237.314 Hz
Qes 0.1770
Qms 3.1935
Qts 0.1677
Le 2.461 mH @1k
XLe 26.472 ohms @1k
PLe 35.737 Degrees @1kHz
;------------------------------------------------;
; Approximate Impedance Fitting Constants ;
; (Improved with Completion of Vas Test) ;
;------------------------------------------------;
Krm 12.724E-03 ohms Freq dependent resistance
Erm 734.479E-03 Rem=Krm*(2*pi*f)^Erm
Kxm 52.692E-03 Henries Freq dependent reactance
Exm 652.952E-03 Xem=Kxm*(2*pi*f)^Exm, Lem=Kxm*(2*pi*f)^(Exm-1)

I have guests this weekend that were unexpected by me (my wife neglected to mention them) I'll get the full specs early this week.

[stlblue]

I have guests this weekend that were unexpected by me (my wife neglected to mention them) I'll get the full specs early this week.

So VERY appreciated!!!

[Altec Best]

As long as the cab is properly braced and damped ? I wouldn't worry about that too much..