Sound maximizer
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No I'm not. 1K is the resonant frequency. It is coincidental that the RIAA EQ curve zero point is also 1K.leo gonzalez wrote:opcode66 wrote:1K is the resonant frequency of the SX74. With the SAL rack's RIAA pre-emphasis that starts at 1K and goes up as the freqeuncy increases. Yes, really. The highs get excited by this system. A number of older mono cutterheads had a resonant frequency that was higher than 1K. Read your AES anthology.
I get excited when i read your posts, but not exactly in a positive way.
there was no reason to bring "resonant frequencies" into this topic. but of course you had to because you seem to love mixing up things all the time.
You are mixing up resonant freqs with the riaa in a very funny way which could be very misleading.
please stop posting like this.
This is a direct quote from Neumann Bulletin #20618 80202 SX 74 Dynamic Stereo Cutterhead. "The SX 74 is equipped with two seperate moving coil systems which are coupled in such a way that except for the primary resonance at approimately 1000 Hz, there are no resonances in the audible range". I would happily scan and post the full specs of the SX 74 cutterhead.
So, again, program frequencies at and above 1K on a SX74 with SAL rack will have natural emphasis. Some in part due to resonance at 1K. The lion's share due to RIAA pre-emphasis.
Watch the highs is all I'm trying to say anyway...
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- leo gonzalez
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- Joined: Mon Sep 08, 2008 11:37 pm
opcode66 wrote:No I'm not. 1K is the resonant frequency. It is coincidental that the RIAA EQ curve zero point is also 1K.leo gonzalez wrote:opcode66 wrote:1K is the resonant frequency of the SX74. With the SAL rack's RIAA pre-emphasis that starts at 1K and goes up as the freqeuncy increases. Yes, really. The highs get excited by this system. A number of older mono cutterheads had a resonant frequency that was higher than 1K. Read your AES anthology.
I get excited when i read your posts, but not exactly in a positive way.
there was no reason to bring "resonant frequencies" into this topic. but of course you had to because you seem to love mixing up things all the time.
You are mixing up resonant freqs with the riaa in a very funny way which could be very misleading.
please stop posting like this.
so again whats your point with all this you are trying to elaborate?
This is a direct quote from Neumann Bulletin #20618 80202 SX 74 Dynamic Stereo Cutterhead. "The SX 74 is equipped with two seperate moving coil systems which are coupled in such a way that except for the primary resonance at approimately 1000 Hz, there are no resonances in the audible range"
So, again, program frequencies at and above 1K on a SX74 with SAL rack will have natural emphasis. Some in part to resonance at 1K. The lion's share in part due to RIAA pre-emphasis.
I think you don't understand what that article states. i think you are still mixing up riaa with the way cutting heads work. Unless you are saying that the reason the riaa is there is to compensate freq response issues on heads. Im really not following... what are u thinking by natural emphasis?
Watch the highs is all I'm trying to say anyway...
yes.
The topic was on Maximization. Someone else starting talking about banded compression. I chimed in saying watch your highs. And, the reason why is twofold: res freq and riaa. You don't want to give too much energy to the upper high end sustained or you'll smoke your head. Also, you can capture a clipped signal on the disc. Yes, tonearms have RIAA de-emphasis but if you cut a clipped tone it will come out clipped on playback.
Again, I was only trying to say watch your highs!
Again, I was only trying to say watch your highs!
Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
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- leo gonzalez
- Posts: 133
- Joined: Mon Sep 08, 2008 11:37 pm
That's what Al Grundy told me. Straight from his lips to my ears. I was video taping the session. I can post the video clip with him saying this. Debate it with him. Neumann was not involved in the developement of the RIAA EQ Curve. And a lot of other cutterheads at the time had their resonant frequency much higher.
Also, if you want to talk about being "off topic" you didn't mention the person asking for suggestions on frequency analysis software. Shoudn't that be a seperate post?
At least I do my best to try to answer questions and make comments even as the topic of a post shifts (and they do freqeuntly). Do I know everything: no. Am I sometimes wrong: yes. Do I at least contribute: yes.
If I had such a fundamental missunderstanding of things don't you think I would have smoked my cutterhead by now. Plenty of people on this board have smoked theirs within the first three months.
Also, if you want to talk about being "off topic" you didn't mention the person asking for suggestions on frequency analysis software. Shoudn't that be a seperate post?
At least I do my best to try to answer questions and make comments even as the topic of a post shifts (and they do freqeuntly). Do I know everything: no. Am I sometimes wrong: yes. Do I at least contribute: yes.
If I had such a fundamental missunderstanding of things don't you think I would have smoked my cutterhead by now. Plenty of people on this board have smoked theirs within the first three months.
Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
- leo gonzalez
- Posts: 133
- Joined: Mon Sep 08, 2008 11:37 pm
Sir, you could have pointed out the heat dissipation factor and issues like high frequency phase stress that occur before jumping into the realm of mechanical resonances, harmonics and so on...opcode66 wrote:The topic was on Maximization. Someone else starting talking about banded compression. I chimed in saying watch your highs. And, the reason why is twofold: res freq and riaa. You don't want to give too much energy to the upper high end sustained or you'll smoke your head. Also, you can capture a clipped signal on the disc. Yes, tonearms have RIAA de-emphasis but if you cut a clipped tone it will come out clipped on playback.
Again, I was only trying to say watch your highs!
please think more before misleading other forum members.
- dietrich10
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Hey Leo, if you have all the answers, why don't you post them? It would be more helpful to our readers than simply saying "you're wrong opcode66".
I'm not missleading anybody. The original post on this topic was asking essentially how to drive more volume. Ask anyone cutting loud dance music if they need to watch their highs or else risk smoking their cutterhead or having audible distortion (clipping) on playback.
I'm not missleading anybody. The original post on this topic was asking essentially how to drive more volume. Ask anyone cutting loud dance music if they need to watch their highs or else risk smoking their cutterhead or having audible distortion (clipping) on playback.
Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
I don't watch my highs.. I smoke all day long, lol....opcode66 wrote:Hey Leo, if you have all the answers, why don't you post them? It would be more helpful to our readers than simply saying "you're wrong opcode66".
I'm not missleading anybody. The original post on this topic was asking essentially how to drive more volume. Ask anyone cutting loud dance music if they need to watch their highs or else risk smoking their cutterhead or having audible distortion (clipping) on playback.
generally its for reproduction.. but i like to play wif it sometimes..
Nice!JayDC wrote:I don't watch my highs.. I smoke all day long, lol....
Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
- leo gonzalez
- Posts: 133
- Joined: Mon Sep 08, 2008 11:37 pm
I see that you get defensive very easy.opcode66 wrote:Hey Leo, if you have all the answers, why don't you post them? It would be more helpful to our readers than simply saying "you're wrong opcode66".
I'm not missleading anybody.
emotions out, where are you going exactly with the main resonance freq of the sx-74 and the riaa curve in respect to levels?
And, I see you like to needlessly nitpick. Nice cover. Call me defensive while you try to pick me apart.leo gonzalez wrote: I see that you get defensive very easy.
emotions out, where are you going exactly with the main resonance freq of the sx-74 and the riaa curve in respect to levels?
I respond to you and can back up my responses. You then change the topic and tell me how else I'm wrong. Why don't you expain something instead? Anything. Antagonizing me is not productive. Do the board a favor and bless us with your wisdom. Saying I'm misleading without backing it up doesn't explain anything. It isn't helpful to the readers of the board.
But, alas, still waiting for you to post anything concrete that either adds to or further explains what's been talked about in this thread. Seriously, start at the first post on page one and read to this one. Then you'll understand how we got here.
If you don't see how pushing hot levels on a system that emphasizes high frequencies due to resonance (again other heads have a resonance much higher, some at 10K) and MOSTLY due to RIAA pre-emphasis built in your amp is at best going to add distortion to your cuts that won't be compensated for by de-emphasis on playback and at worse will smoke your head, unless you account for the highs in your mastering chain then there is nothing more I can say. Do whatever you want brother. Incur whatever sort of repair bills you wish. I cut at high levels and I'm doing fine with the knowledge I have. No distortion at +2 VU and no smoked head. I'm done.
Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
- dietrich10
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Cutting, Inventing & Innovating
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
Groove Graphics, VMS Halfnuts, MIDI Automation, Professional Stereo Feedback Cutterheads, and Pesto 1-D Cutterhead Clones
Cutterhead Repair: Recoiling, Cleaning, Cloning of Screws, Dampers & More
http://mantra.audio
If Al Grundy said that to you ... yes ,we will be very happy if you post the videoopcode66 wrote:That's what Al Grundy told me. Straight from his lips to my ears. I was video taping the session. I can post the video clip with him saying this. Debate it with him. Neumann was not involved in the developement of the RIAA EQ Curve. And a lot of other cutterheads at the time had their resonant frequency much higher.
Last edited by Nickou on Tue Jun 21, 2011 5:18 am, edited 1 time in total.
Leo , q te pasa ? es un bon nene ...nos da buenos momentos con sus post no ?leo gonzalez wrote:opcode66 wrote:1K is the resonant frequency of the SX74. With the SAL rack's RIAA pre-emphasis that starts at 1K and goes up as the freqeuncy increases. Yes, really. The highs get excited by this system. A number of older mono cutterheads had a resonant frequency that was higher than 1K. Read your AES anthology.
I get excited when i read your posts, but not exactly in a positive way.
there was no reason to bring "resonant frequencies" into this topic. but of course you had to because you seem to love mixing up things all the time.
You are mixing up resonant freqs with the riaa in a very funny way which could be very misleading.
please stop posting like this.
Y lo sabes , tiene las formulas, sabe todo , y sobre todo , tambien habla con Al , entonces ....