And there’s the problem.There's not really a lot to understand.
Nope. You really do not understand this.It's well known in the car audio industry that a lot of manufacturers post only their peak watt ratings to make people think they're more powerful than they really are. That's the only point I was making, that because the Samson didn't say whether the watt rating was RMS or peak I was wondering if it could in fact be peak. Maybe the power amp industry doesn't do the same thing that some people in the car audio industry does. And if the ratings on the Samson are rms, then one could assume that it's capable of a higher wattage for peaks. That doesn't seem like an unreasonable question.
I just keep getting different answers and I don't know enough about it to know if I need to have a plan B.So.. apparently you either can’t read the graphs I posted, or don’t believe them, or both.
Let me be clear here. I ran the tests with your schematic with a 1Kw amplifier and couldn’t get any high end roll off or any significant distortion out of it. Get all the parts you want, nothing here is going to change. The change you’re looking for, high end “rounding” (not a term used in audio) can be achieved with any EQ plugin far better, and under your complete control. It’s a 1st order low pass response. Put the -3dB point at 20KHz to start. Not a shelf. You can also do this OTB with a resistor or two and a capacitor. And you can rid yourself of digital distortion by keeping peaks below 0dBFS.
All along the way I’ve tried to help you avoid wasting time and money. I’ve given you scientific proof that the 111C is the wrong device to do what you’re asking, but clearly that’s what you want to do. I’m sorry, I can’t help any further.
In terms of the effect that may or may not happen, we already have established that you and I disagree, so there's no point in talking about that. I have hundreds of saturation and eq plugins. I'm just experimenting with something new and want to do my own testing and make my own decisions after. Not sure why that makes you so upset.
I will say again though, depsite how irritated this makes you, I appreciate your help.
Ah crap thats for a circuit board isn't it. I thought it looked strange.Google SMD.
See, sometimes you might think you know, but you don’t. You admit you know nothing about electronics but when someone applies electrics to audio you completely disagree with the result.Ah crap thats for a circuit board isn't it. I thought it looked strange.
You have zero experience here but disagree with those that do. You’re asking questions, getting answers, and getting answers explained, and yet cling to wrong concepts.
I haven’t helped you at all. I’ve beaten my head against a brick wall.
Frustration doesn’t begin….
I admit when I'm wrong about things I have no experience with, but Im not completely inexperienced with car audio. I've wired many amps up and read enough manuals to know the thing I said about the max wattage rating on a spec sheet does not always say whether it's RMS or peak, and that often times it's peak.See, sometimes you might think you know, but you don’t. You admit you know nothing about electronics but when someone applies electrics to audio you completely disagree with the result.
You have zero experience here but disagree with those that do. You’re asking questions, getting answers, and getting answers explained, and yet cling to wrong concepts.
I haven’t helped you at all. I’ve beaten my head against a brick wall.
Frustration doesn’t begin….
Look I don't want you be mad so I understand if you abandon the thread. Have a nice weekend.
You can always decide to buy cheaper transformers.
The manual of the amplifier is here:
http://www.samsontech.com/site_media/legacy_docs/Servo120a_ownman_v1_2.pdf
In stereo mode, it's 60 W into 4 ohm, 50 W into 8 ohm. That's 15.49 V and 20 V, respectively. If the voltage is that dependent on the load, you just might get something like 24 V at very light load. If that's the case, then with the first circuit I've drawn, you get about 35 dBu on the secondary side.
The manual of the amplifier is here:
http://www.samsontech.com/site_media/legacy_docs/Servo120a_ownman_v1_2.pdf
In stereo mode, it's 60 W into 4 ohm, 50 W into 8 ohm. That's 15.49 V and 20 V, respectively. If the voltage is that dependent on the load, you just might get something like 24 V at very light load. If that's the case, then with the first circuit I've drawn, you get about 35 dBu on the secondary side.
Are the resistors on the output side replacing the -30db pad? Or is that going into the pad?You can always decide to buy cheaper transformers.
The manual of the amplifier is here:
http://www.samsontech.com/site_media/legacy_docs/Servo120a_ownman_v1_2.pdf
In stereo mode, it's 60 W into 4 ohm, 50 W into 8 ohm. That's 15.49 V and 20 V, respectively. If the voltage is that dependent on the load, you just might get something like 24 V at very light load. If that's the case, then with the first circuit I've drawn, you get about 35 dBu on the secondary side.
They are meant to replace the pad. Their attenuation is closer to 20 dB, you can put a pad after them if 20 dB should be sufficient.
Yeah I just went back through the conversation and see that you said that.They are meant to replace the pad. Their attenuation is closer to 20 dB, you can put a pad after them if 20 dB should be sufficient.
I rewired the 111C using your schematic. When the amp comes in on Tuesday I'll throw in the 560ohm resistors Jasddie originally mentioned and see what happens. If I want more, I'll order the rest of the resistors from your schematic and try that.
Thanks for your help.
Or use 220 ohm instead of 680 ohm, then you get about 30 dB attenuation from the resistor network.
Thanks for the tip. These xlr attenuators kind of suck anyway.Or use 220 ohm instead of 680 ohm, then you get about 30 dB attenuation from the resistor network.
Alright I got the Samson unit today. I had all the cables already built so it was just a matter of plugging in.
Result is that with the current wiring (i.e. marcels transformer wiring + 560ohm resistor before the transformer), the Samson breaks up before the ssl does. With the Samson into the 111c I'm able to get the song to around -10 LUFS before I hear audible distortion. With the ssl only I am able to get the song to like -6.5 LUFS before audible distortion (not that I would ever push a song that hard, I'm just using the song settings from the previous configuration).
I thought maybe that the SSL was compressing the peaks, which is why it was being allowed to get more max output, but I also tried running the SSL into the amp into the 111c and I was not able to get any more than -10LUFS before distortion.
I already ordered the parts from Marcels schematic and they will be here tomorrow. I'll start by changing the 560ohm resistor that goes before the 111C to the 150ohm one.
In terms of the resistance on the backend before it goes back into the interface... I'm currently using those -30db pads that have 1000k ohm on input and 150ohm on output. If I get rid of those and put the resistor network from your schematic in there, will that change the max output of the samson? Or is it all up to the resistors on the front end?
Result is that with the current wiring (i.e. marcels transformer wiring + 560ohm resistor before the transformer), the Samson breaks up before the ssl does. With the Samson into the 111c I'm able to get the song to around -10 LUFS before I hear audible distortion. With the ssl only I am able to get the song to like -6.5 LUFS before audible distortion (not that I would ever push a song that hard, I'm just using the song settings from the previous configuration).
I thought maybe that the SSL was compressing the peaks, which is why it was being allowed to get more max output, but I also tried running the SSL into the amp into the 111c and I was not able to get any more than -10LUFS before distortion.
I already ordered the parts from Marcels schematic and they will be here tomorrow. I'll start by changing the 560ohm resistor that goes before the 111C to the 150ohm one.
In terms of the resistance on the backend before it goes back into the interface... I'm currently using those -30db pads that have 1000k ohm on input and 150ohm on output. If I get rid of those and put the resistor network from your schematic in there, will that change the max output of the samson? Or is it all up to the resistors on the front end?
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Ok cool. I got the 220 and the 680 ohms as well in case I need more/less pad before the interface. I'll start with just swapping the front end resistors out and see what happens.It will increase the level the transformer operates at.
@MarcelvdG btw I got ceramic resistors for the front end and metal film for the back end. I hope that's correct..
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I think those will work fine. You may get some extra distortion from the ceramic composition resistor, as its voltage and its temperature coefficients are relatively high.
I threw on the 150 ohm resistors only (still have the current -30db pads) but I don't think I got much more gain out of it. I should have saved the file from yesterday. I got it to about -9.1 LUFS before distortion.
Later tonight I'll solder in the pad network you drew up and see what happens.
Later tonight I'll solder in the pad network you drew up and see what happens.
I put the 3300ohm resistors on and it didn't allow more gain into the 111c. I think I need a more powerful amp. I'll sell the current Samson 120a and get another that can deliver more power info the 11c.
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