1: High Efficiency Speaker Asylum, RE: JBL 2446 (0.00)
Posted by ACMINC on 2021-11-06, 09:32:31 (71.229.18.73)
YES common sense says that the 2 inches count towards the axially length of the horn. I looked at the JBL 2382A horn. Its axially length is 9.3 inches. Its also an exponential horn. Hornresp calculate .......

2: High Efficiency Speaker Asylum, JBL 2446 (0.00)
Posted by ACMINC on 2021-10-29, 07:37:36 (71.229.18.73)
The picture shows a JBL 2446. It shows where one attaches a horn. The exit hole in the center of the driver is about 2 inches deep and 2 inches in diameter. Is that hole part of the throat chamber .......

3: High Efficiency Speaker Asylum, RE: Re-thinking the building of a 350Hz tractrix horn (0.00)
Posted by ACMINC on 2021-08-12, 08:49:54 (71.229.18.73)
19x30 vaulted to 15 .......

4: High Efficiency Speaker Asylum, RE: Re-thinking the building of a 350Hz tractrix horn (0.00)
Posted by ACMINC on 2021-08-11, 13:11:09 (71.229.18.73)
I HAVE MY OWN WOOD WORKSHOP. The custom wood bass horn is 8ft by 5ft by 3ft. 20-150 Hz. The custom wood 105 Hz mid-bass is a 4-sided full length tractrix horn. It will run from 150-700 Hz. So that l .......

5: High Efficiency Speaker Asylum, RE: Re-thinking the building of a 350Hz tractrix horn (0.00)
Posted by ACMINC on 2021-08-08, 11:00:46 (71.229.18.73)
Yes I should of included the driver. JBL 2446 .......

6: High Efficiency Speaker Asylum, RE: Re-thinking the building of a 350Hz tractrix horn (0.00)
Posted by ACMINC on 2021-08-07, 11:49:14 (71.229.18.73)
A tractrix horn properly designed is designed for the low cutoff frequency. (350 Hz) Every frequency higher starts to lose from the benefit of the horn. Therefore the restriction of 3 octaves per hor .......

7: High Efficiency Speaker Asylum, Re-thinking the building of a 350Hz tractrix horn (0.00)
Posted by ACMINC on 2021-08-07, 07:50:39 (71.229.18.73)
When you design a 3-way system taking into account the 3 octave horn rule, and the knowledge that a 350 Hz horn doesn't load properly until a couple of hundred hertz higher (500-550) that would be fin .......

8: High Efficiency Speaker Asylum, RE: Proper arrangement of drivers (0.00)
Posted by ACMINC on 2021-05-27, 15:51:51 (71.229.18.73)
The system consists of 4 separate horns. The bass is a copy of John Inlow's spiral bass horn but with 18" woofers. (Radian 2218 neo) The mid-bass is a copy of the Aries Cerat model Contendo Reference .......

9: High Efficiency Speaker Asylum, Proper arrangement of drivers (0.00)
Posted by ACMINC on 2021-05-25, 06:08:02 (71.229.18.73)
Let's start this thread with two assumptions. First: Room size is not an issue Second: Each of the drivers/horns (tweeter, midrange, mid-bass, woofer) are physically separate items (not contained i .......

10: High Efficiency Speaker Asylum, Mid-bass Hornresp (V51.30) simulations (0.00)
Posted by ACMINC on 2021-05-19, 13:53:22 (71.229.18.73)
I am going to show two different simulations for a 105Hz tractrix horn with the same 8"driver (B&C 8PE21). The parameter values for these two simulations are quite different. However the simulations .......

11: High Efficiency Speaker Asylum, Hornresp 2446 Tractrrix (0.00)
Posted by ACMINC on 2021-01-11, 09:53:12 (71.229.18.73)
1. I have a pair of JBL 2446's 2. I want to build a tractrix horn for these. 3. There are no T/S parameters in print anywhere to be found. 4. Throat is 2 inch so S1 is a known value 5. I want a lowe .......

12: High Efficiency Speaker Asylum, RE: HornResp (0.00)
Posted by ACMINC on 2020-07-25, 15:48:33 (71.229.18.73)
I guess that I should not have just said "conical" horns. I really meant "round" and not 4 sided. I am going to go either exponential or tractrix (But round). So I am guessing that you have a 3 or so .......

13: High Efficiency Speaker Asylum, HornResp (0.00)
Posted by ACMINC on 2020-07-24, 06:30:29 (71.229.18.73)
I have a pair of EV 1823M and T350's. I want to make conical wooden horns for both. I already used Hornresp to model my mid-bass and bass horns. However I can not find the data needed to enter into .......

14: High Efficiency Speaker Asylum, RE: Wood Horns (0.00)
Posted by ACMINC on 2018-04-04, 08:27:36 (71.229.18.73)
Max Cambras pointed me to "inlowsound.com" That site has a horn that runs from 135-900 Hz @ 110db. He also has a Hornresp simulation for what looks like 80-800 Hz @ 116 Hz. So my plans are now to try .......

15: High Efficiency Speaker Asylum, RE: Wood Horns (0.00)
Posted by ACMINC on 2018-04-04, 07:51:52 (71.229.18.73)
Those are 1976 SP-15A's They do have the whizzer and the 2 ohm resistor. I don't know anything about 15L cone kits. .......

16: High Efficiency Speaker Asylum, RE: Wood Horns (0.00)
Posted by ACMINC on 2018-03-25, 07:27:32 (71.229.18.73)
The bass (20-200Hz) will not be a horn. No one has a room that large! I have six EV SP-15A. I am thinking three per channel in a box about 20 cubic feet that could be vented to outdoors. Have not full .......

17: High Efficiency Speaker Asylum, RE: Wood Horns (0.00)
Posted by ACMINC on 2018-03-25, 07:19:59 (71.229.18.73)
The mid bass horn will NOT be folded for the same reasons that you mentioned. Do you have an alternate material in mind for the mid bass horn? .......

18: High Efficiency Speaker Asylum, Wood Horns (0.00)
Posted by ACMINC on 2018-03-24, 12:18:04 (71.229.18.73)
I am both a wood worker and an audiophile. I am going to be making three different sets of 16 sided wood horns. The first set is for the EV T-350 tweeter. The second set is for the EV 1823M midrang .......

19: High Efficiency Speaker Asylum, RE:More T350 lore (0.00)
Posted by ACMINC on 2014-10-17, 07:39:36 (98.192.155.144)
I guess I'm going to leave the stock horns on the T-350's. But I am going to change out the stock horn on the 1823M. Most likely a conical tractrix design. I too have been thinking of raising the OX t .......

20: High Efficiency Speaker Asylum, RE: EV Horns (0.00)
Posted by ACMINC on 2014-09-30, 17:06:09 (98.192.155.144)
Paul Thanks for your reply. I am crossing my 1823M over between 800Hz and 3500 Hz. I plan on upgrading my 3-way passive system to a 4-way active system, therefore I want the 1823M frequency range to s .......

21: High Efficiency Speaker Asylum, EV Horns (0.00)
Posted by ACMINC on 2014-09-26, 06:56:05 (98.192.155.144)
I currently own a 3-way EV system with T-350 and 1823M w/ 8H horns. I want to remove the “Stock” exponential metal horns and replace them with wooden horns that I will construct. I want conical horns .......

22: High Efficiency Speaker Asylum, RE: The Last Speaker Enclosure I'm going to Build (0.00)
Posted by ACMINC on 2012-04-15, 14:36:07 (98.192.155.144)
Paul, I never realized the amount of bad press the 20-20KHz +/-0 db was going to bring. What I trying to say was that I didn’t want -3db at 20Hz. I didn’t want it to start rolling off until 20Hz was r .......

23: High Efficiency Speaker Asylum, RE: The Last Speaker Enclosure I'm going to Build (0.00)
Posted by ACMINC on 2012-04-13, 19:08:05 (98.192.155.144)
My current system is all EV except for a pair of Velodyne FSR-18 subs. Range Model Size SPL/m/w 60-400 SP15A 15” cone driver 103db 400-3500 1823M 1” throat c .......

24: High Efficiency Speaker Asylum, RE: Cut back on the coffee (0.00)
Posted by ACMINC on 2012-04-13, 09:27:53 (98.192.155.144)
Oh course 20-20K +/- 0 is impossible. Maybe I should of started with saying 16-21KHz +/- 3db. But that doesn't change the outcome of this discussion. I am just wondering how many drivers are needed be .......

25: High Efficiency Speaker Asylum, The Last Speaker Enclosure I'm going to Build (0.00)
Posted by ACMINC on 2012-04-13, 05:57:28 (98.192.155.144)
For this discussion I only want to address the correct number of drivers needed to span 20-20000Hz +/- 0 db, assuming that room for the enclosures will not be an issue. I do not want to talk about any .......

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