High Efficiency Speaker Asylum

Is an upper first bend reflector helpful for RCA Fan's 70Hz horn?

173.80.184.112

freddyi

hey RCA-Fan

if so, how large would you make the reflector?

how does this look? - baffle and lid are 3/4" BB, rest 5/8" BB

sketchup courtesy of Jesse Brunner

Karlson Evangelist

Follow Ups:

RE: Is an upper first bend reflector helpful for RCA Fan's 70Hz horn? - RCA-fan 09:34:54 09/23/15 (9)
Yes, and you can make it about an inch longer.
The bottom one is fine.
You will get more at 1kHz.

Bill
- VS LaScala horn or Peavey FH1 - Gera 20:42:10 02/02/24 (1)
  any thoughts on how these will compare?
  - RE: VS LaScala horn or Peavey FH1 - freddyi 06:28:49 03/01/24 (0)
    When Bill rebuilt that horn he found a few response problems - so advised me on a build which was wider. Partly because I don't have a reflector at the first turn, my version gets a bit rough above ~350Hz. Its quite a bit smaller than FH1 - must go as deep. FH1, being bifurcated may be smoother. FH1 is a well braced horn - moreso than La Scala.
    If interested -I'll try to dig through my email to see if there's a dimensioned drawing.
    
    Karlson Evangelist
    
    Edits: 03/01/24
- vs Peavey FH1 - Gera 21:23:08 03/27/20 (0)
  I use Peavey HF-1 (similar to LaScala). How does the RCA Fan's 70Hz horn compare?
- RE: Is an upper first bend reflector helpful for RCA Fan's 70Hz horn? - freddyi 10:20:45 09/23/15 (5)
  an inch longer - what size would that be ?
  Karlson Evangelist
  - mouth extension ? - freddyi 16:00:45 09/23/15 (4)
    could a practical folding extension be made - say two hinged pieces on the sides then a trapezoidal piece to connect to those to form a larger mouth and more path?
    Karlson Evangelist
    - RE: mouth extension ? - RCA-fan 16:44:42 09/23/15 (3)
      No.
      What happens is that there is a rising characteristic, negating the present response if you add a flare.
      
      If you E-mail me I will send you drawings with the little angles.
      
      Bill
      - RE: mouth extension ? - freddyi 18:13:34 09/23/15 (2)
        
        In Reply to: RE: mouth extension ? posted by RCA-fan on September 23, 2015 at 16:44:42
        
        thanks - can't find a working email as the asylum mail blocks unsolicited
        Karlson Evangelist
        
        RE: mouth extension ? - Don Reid 18:52:33 09/23/15 (1)
        
        In Reply to: RE: mouth extension ? posted by freddyi on September 23, 2015 at 18:13:34
        
        Freddyi, It's nice to have back on the forum. Quite some while back you mentioned some health problems and not long after that you pretty much quit posting. I'm glad you are back.
        
        Edits: 09/23/15
        
        RE: mouth extension ? - freddyi 19:36:24 09/27/15 (0)
        
        In Reply to: RE: mouth extension ? posted by Don Reid on September 23, 2015 at 18:52:33
        
        appreciate it - - -
        Karlson Evangelist

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors:

Sonic Craft