Mallette Posted August 3, 2014 Author Share Posted August 3, 2014 That 230w Dayton seems almost overkill. It's just loafing. Dave Quote Link to comment Share on other sites More sharing options...
Dr Morbius Posted August 3, 2014 Share Posted August 3, 2014 Me three! Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted August 3, 2014 Share Posted August 3, 2014 That 230w Dayton seems almost overkill. It's just loafing. Dave Yup. I recently recalibrated as a result of AVR swap and I have the the gain knob only a hair off of 0 for proper trim levels. Quote Link to comment Share on other sites More sharing options...
Mallette Posted August 3, 2014 Author Share Posted August 3, 2014 Just finished a solid 70 minutes of my beloved friend George Ellis Mims playing the incredible Schoenberg he designed for St. Martin's, Houston. So far, I'd been sampling this and that, but once I started this I sat mesmerized for the entire 20 tracks. I was sort of well out there when he started an improvisation. Suddenly he resolved the intro and tears filled my eyes at the sound of "Praise to the Lord, the Almighty." That good. While I am sure there are those who could improve on it a bit, it is dialed in pretty much. The instrument sounded as I have heard it live and I was not listening to the recording, but to George and the instrument. That's all I ask. Dave Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 3, 2014 Share Posted August 3, 2014 Any changes in your upper ranges, Michael? I'd be curious to know all your settings on the plate amp. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 3, 2014 Share Posted August 3, 2014 I'm glad that it's working out to your satisfaction and that you let me help. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted August 4, 2014 Share Posted August 4, 2014 Any changes in your upper ranges, Michael? I'd be curious to know all your settings on the plate amp. Subsonic filter and EQ knob set to 20hz crossovers disabled phase set to 0 parametric EQ's bypassed and then whatever magic Audyssey XT32 does. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 4, 2014 Share Posted August 4, 2014 I was curious as to Daves setting as he's perceiving a change in the frequencies above what you'd expect out of a sub. I should have been more clear with my question. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted August 4, 2014 Share Posted August 4, 2014 Oh, i figured you were talking to me since he didn't go with a plate amp Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 4, 2014 Share Posted August 4, 2014 he didn't go with a plate amp I thought he did. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted August 4, 2014 Share Posted August 4, 2014 no he went with this.. http://www.parts-express.com/dayton-audio-sa230-230w-subwoofer-amplifier--300-813 i went with the oAudio bash 500 (no longer available). Quote Link to comment Share on other sites More sharing options...
Marvel Posted August 4, 2014 Share Posted August 4, 2014 Do you feel the in sides of the Khorns are being hurt with the subs so close? I'm curious more than anything. Would love to hear your system, but I don't see a trip to Texas anytime soon. Bruce Quote Link to comment Share on other sites More sharing options...
NOSValves Posted August 4, 2014 Share Posted August 4, 2014 Dave, Where did you get the F-20? I'm kind of shocked that the turntable could withstand those frequencies with the sub so close. I'd imagine the large slab of marble is helping that out! What is the black box under the turntables? How are you powering that beast? Quote Link to comment Share on other sites More sharing options...
Mallette Posted August 4, 2014 Author Share Posted August 4, 2014 I'd be curious to know all your settings on the plate amp. Crossover is at 40Hz, phase 0, gain about 12:00. Those setting were all made with the Michael Murry Franck Chorale, and held well through all the pop and jazz that followed...along with more pipe organ. Dave Quote Link to comment Share on other sites More sharing options...
Mallette Posted August 4, 2014 Author Share Posted August 4, 2014 Guys, as to the horn position and the turntable I am perceiving no effects...other than the aforementioned sense that the mids and highs are even more transparent than before. Dean, the turntable based is made of 3/4" birch with ballast inside. Whilst the walls and the monitor were visibly flexing during the Virgil Fox LP, I felt the granite base and it did not seem to be moving at all. I certainly heard nothing to suggest any transmission. Dave Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 4, 2014 Share Posted August 4, 2014 Crossover is at 40Hz, phase 0, gain about 12:00. Then I have no idea why you're noticing a difference in the mids. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 4, 2014 Share Posted August 4, 2014 Is the plate amp receiving a full signal or is the signal coming out of a "sub" or "LFE" out jack of a preamp? If you're using speaker wires to the plate amp, tell me exactly how you've wired it. Quote Link to comment Share on other sites More sharing options...
Mallette Posted August 4, 2014 Author Share Posted August 4, 2014 Well, I theorize that, while the rolloff from the K'horns is smooth, the sense of "bottomlessness" from the Cinema may simply make the mids and highs seem clearer. Like you, I can find no reason for any actual change. The amp is the Dayton 230 external. I dawdled over the pass through before deciding to go directly out of the power amp in and then out to the Dynaquad. Now that I think of it, it's possible the illusion of cleaner mids and highs is from the rears which are now on a high pass filter. Anyway, like my sig line says "If it SOUNDS good, it IS good." Dave Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted August 4, 2014 Share Posted August 4, 2014 Then I have no idea why you're noticing a difference in the mids. Very likely because of a reduction in overall listening level. It only takes a dB or two to tip that scale. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 4, 2014 Share Posted August 4, 2014 Now that I think of it, it's possible the illusion of cleaner mids and highs is from the rears which are now on a high pass filter. That was my theory also. To take them off the filter, just run your speakers and plate amp parallel off your power amp. Don't worry about the resistance your amp sees. The plate amp is only about .1 Ohm. Instead of your amp seeing 8 Ohms, paralleling the plate amp with your speakers will drop it to about 7.9 Ohms. I was also thinking that possibly high pass filtering your speakers removed some of the bass from the speakers (less sources of bass) reducing cancellation which would clean up your mids also. Quote Link to comment Share on other sites More sharing options...
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