High Efficiency Speaker Asylum

RE: What does one need to look at when buying a pair of these (nt)?

208.61.125.118

In Reply to: RE: What does one need to look at when buying a pair of these (nt)? posted by Steve Jones on May 24, 2007 at 14:14:11

Greets!

Note that if losing ~2 dB of efficiency is OK, then you can add 1 ohm series resistance to get the -8C to 'fill' the cab, then reduce the vent area to ~18.1"^2 to flatten it out and shelve the HF horn to match it.

If you're a DIYer, building your own cabs and buying new components except for the 811 horn is the most cost efficient in the long run IMO and it allows you to shape the cab for better performance without adding on stands or taller bases and making them one piece rather than the leaky, bass degrading three tier assembly of the original.

Or if you're not into woodworking, a dude on the Altec forum is getting ready to offer some repro cabs as well as complete speakers:

GM
Loud is Beautiful if it's Clean!

M19 repro (Open in New Window)

Follow Ups:

RE: What does one need to look at when buying a pair of these (nt)? - Steve Jones 15:27:03 05/24/07 (2)
Hi GM,

Thanks for the info. I'll try that 1 ohm series resistor. Is it OK to simply wire it in series at the binding posts, or do I have to go in to the crossover and wire it in series with the woofer circuit?

New boxes and clones. Of course there are more modern ways to skin the Altec cat. The Model 19 is not magic, but simply a damn good turn-key speaker.

Finding a pair in this shape after lusting for them for 30 years, is like running into your high school homecomimg queen at a reunion. And finding out she's an aerobic instructor, recently divorced, and just had a boob job.

Too much for me to pass up. ;-)

Cheers,
-Steve
- RE: What does one need to look at when buying a pair of these (nt)? - GM 15:43:34 05/24/07 (1)
  Greets!
  
  You're welcome! Yes, no need to do it at the XO. Understood, though the M19s never impressed me, I just added the other info for any interested folks.
  
  GM
  Loud is Beautiful if it's Clean!
  - RE: What does one need to look at when buying a pair of these (nt)? - Steve Jones 07:59:21 05/25/07 (0)
    Hi GM,
    
    Makes sense, as when I auditioned the 19s the owner was using a tubed MacIntosh amp with high output impedance and I'm using solid state chipamp with low output impedance.
    
    I'll try a tube amp with variable NFB to dial in speaker dampening.
    
    Thanks,
    -Steve

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