In Reply to: RE: Listening to my New Korneff Clone 45 SET Amps ................. posted by deathtube 667 on March 27, 2021 at 06:28:00:
A few reasons.... First of all, it is working perfectly now. It is seamless, powerful and Musical. And I am not Bi-Amping the 115db Oris Horns. I am Bi-Amping the Entire System, which includes the 100db Khorn Bass Bins. The only Amp attached to the 115db Oris Horns ARE the TAL 45s.
When I got my Oris Orphean Horn System, the designer Bert Doppenberg of Holland recommends the Bi-Amp Configuration. And specifically the Hypex Amplifiers for the Bass Bins of your choice. All of his Bass Bins use a separate Bass Amp. Even with High Power Solid State Amps on his Horns. (Bert Prefers Solid State Amps). The Hypex Amps have a built in Active Crossover for the Bass Bin. The Orphean Horn Mid-Range and Tweeter use a passive crossover for cutoff Freqs of 270hz and 7,000 Hz. I have the Khorn Bass Bin cutoff Freq set at 270 Hz. --
Before I got the Oris Horns, I was using Altec Multicells and the Bass was sorely lacking even though the Khorn/Altec System was 104db. This was with 45 amps and 2A3 Amps. Amps were driven into clipping when volume hungry friends came over. Did the Bass bins make noise? -- Yes, but it was not the Controlled, Quick and Powerful Bass that I have now. And it also 'taxed' the SET amplifiers to clipping during Big orchestral performances (Think Firebird Suite and 1812 Overture) and Heavy Rock.
So, Been there, done that and 45 amps alone won't do it for me across all music spectrums. I switched to Oris Horns/Bi-Amping 7 years ago and have never looked back.
If you're ever in the Minneapolis Area, give me a shout and you can listen for yourself. I'll even provide the libations of your choice. :-)
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Follow Ups
- RE: Listening to my New Korneff Clone 45 SET Amps ................. - Cut-Throat 07:05:37 03/27/21 (43)
- RE: sounds good to me ... - deathtube 667 08:29:20 03/27/21 (0)
- RE: Listening to my New Korneff Clone 45 SET Amps ................. - Tre' 07:20:45 03/27/21 (41)
- RE: Listening to my New Korneff Clone 45 SET Amps ................. - Cut-Throat 07:29:23 03/27/21 (40)
- RE: Listening to my New Korneff Clone 45 SET Amps ................. - Tre' 07:41:54 03/27/21 (39)
- RE: tried the input cap mod ... - deathtube 667 18:54:14 03/28/21 (5)
- I asked the guy that Designed my Horn System this question ......... - Cut-Throat 13:11:03 04/01/21 (0)
- I have no explanation for that. nt - Tre' 17:27:00 03/30/21 (1)
- RE: It might be ... - deathtube 667 02:51:42 04/01/21 (0)
- RE: tried the input cap mod ... - Cut-Throat 07:01:48 03/29/21 (1)
- RE: tried the input cap mod ... - deathtube 667 07:40:53 03/29/21 (0)
- "100k input impedance of the 45 amplifier"........ - Cut-Throat 14:49:33 03/27/21 (1)
- I was looking at the wrong schematic, yours is 1meg nt - Tre' 17:26:31 03/27/21 (0)
- My 300B monoblocks have a 100K input resistor to ground... - Ivan303 11:36:43 03/27/21 (2)
- Yes and yes. nt - Tre' 13:47:12 03/27/21 (1)
- except I get 72.34Hz for that combo. nt - Tre' 13:49:16 03/27/21 (0)
- RE: Listening to my New Korneff Clone 45 SET Amps ................. - Tre' 08:01:35 03/27/21 (0)
- OK, Thanks ........... - Cut-Throat 08:00:45 03/27/21 (25)
- That's not the circuit I thought it was - Tre' 08:10:05 03/27/21 (24)
- OK, Great ........................ - Cut-Throat 08:12:38 03/27/21 (23)
- RE: OK, Great ........................ - Tre' 08:40:01 03/27/21 (22)
- RE: OK, Great ........................ - 91derlust 17:02:12 03/27/21 (3)
- RE: OK, Great ........................ - Tre' 17:30:17 03/27/21 (2)
- RE: OK, Great ........................ - 91derlust 20:36:56 03/27/21 (1)
- "some of the compromises mentioned can be overstated". Agreed. nt - Tre' 06:50:37 03/28/21 (0)
- Why did he select 100 Hz ? .... Why not 200 Hz or ?? ........nt - Cut-Throat 08:53:46 03/27/21 (16)
- No, I selected it - Tre' 09:19:31 03/27/21 (15)
- Got a Source for some .0015 uf Caps ? .................. - Cut-Throat 13:05:51 03/27/21 (13)
- RE: Got a Source for some .0015 uf Caps ? ......yes............ - awsjr 04:07:39 03/28/21 (0)
- RE: Got a Source for some .0015 uf Caps ? .................. - Tre' 13:28:17 03/27/21 (11)
- E-Bay has quite a few .......................... - Cut-Throat 14:27:48 03/27/21 (1)
- RE: E-Bay has quite a few .......................... - Tre' 14:46:42 03/27/21 (0)
- On my setup... - Tre' 13:40:33 03/27/21 (2)
- Here are some very Spendy Ones from England ...... - Cut-Throat 13:44:31 03/27/21 (1)
- RE: Here are some very Spendy Ones from England ...... - Tre' 14:19:21 03/27/21 (0)
- "Why is the grid resistor 1 meg?" ....................... - Cut-Throat 13:39:48 03/27/21 (5)
- Well, if your preamp don't mind... - Tre' 13:52:23 03/27/21 (4)
- RE: Well, if your preamp don't mind... - RPMac 15:32:47 03/28/21 (3)
- RE: Well, if your preamp don't mind... - Tre' 16:24:21 03/28/21 (2)
- RE: Thanks a lot nt - RPMac 05:00:20 03/29/21 (0)
- Link to online calculator - Tre' 16:47:46 03/28/21 (0)
- OK, makes sense..................... nt - Cut-Throat 10:21:40 03/27/21 (0)
- I'll definitely try this ...................... - Cut-Throat 08:44:17 03/27/21 (0)
- A .015uf cap will do the job. nt - Tre' 07:49:21 03/27/21 (0)