RCA audio output recordings
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Lemusicienfou
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Lemusicienfou Posted messages 151 Status Member -
Lemusicienfou Posted messages 151 Status Member -
Hello everyone!
I'm a newbie on this forum that seems very interesting.
Before posting my question here, I searched online as much as possible, but I couldn't find a clear answer and I admit I'm starting to get a bit frustrated.
It's actually very simple as you'll see.
I just bought an Auna av2-cd508 amplifier to connect a turntable equipped with a phono preamp, so far no problem.
The issue is that I simply wanted to use the REC RCA audio outputs to connect to my external PC sound card.
I didn't intend to use the standard outputs for speakers, but here's where it gets tricky because sound comes through the speakers connected to my sound card and my PC, but when I want to use the volume, bass, and treble controls, nothing happens.
The volume remains exactly the same even if I lower the amplifier volume to the minimum, the sound level is always the same.
So my question is this: are the volume, bass, and treble control functionalities exclusively for the standard speaker outputs, or does my amplifier have a problem?
There you go, I hope I've been clear and that someone can respond, that would be very kind.
(I have some knowledge about sound but until now I've only used equipment with different audio outputs.)
I'm a newbie on this forum that seems very interesting.
Before posting my question here, I searched online as much as possible, but I couldn't find a clear answer and I admit I'm starting to get a bit frustrated.
It's actually very simple as you'll see.
I just bought an Auna av2-cd508 amplifier to connect a turntable equipped with a phono preamp, so far no problem.
The issue is that I simply wanted to use the REC RCA audio outputs to connect to my external PC sound card.
I didn't intend to use the standard outputs for speakers, but here's where it gets tricky because sound comes through the speakers connected to my sound card and my PC, but when I want to use the volume, bass, and treble controls, nothing happens.
The volume remains exactly the same even if I lower the amplifier volume to the minimum, the sound level is always the same.
So my question is this: are the volume, bass, and treble control functionalities exclusively for the standard speaker outputs, or does my amplifier have a problem?
There you go, I hope I've been clear and that someone can respond, that would be very kind.
(I have some knowledge about sound but until now I've only used equipment with different audio outputs.)
7 answers
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Hello and welcome to this forum,
"My question is as follows, are the volume control, bass, and treble features only dedicated to classic speaker outputs or does my amp have a problem?"
This is normal because the REC RCA outputs are line outputs, meaning they are not amplified and not adjustable
For your project, you would need a preamp equalizer;
https://www.audiophonics.fr/fr/preamplificateur-et-controleur-de-volume/audiophonics-pre-tc10-preamplificateur-avec-controle-de-tonalite-2x-aop-lm49720na-p-12752.html
Or you can be handy:
https://www.cdiscount.com/high-tech/home-cinema/planchette-de-tonalite-ne5532-preampli-avec-treble/f-10629100109-sod0194452633005.html
I call a spade a spade *
*in French in the text -
Hello,
That's normal. Originally, the line output of an amplifier was used for recording on cassette, and it has diversified today so that we can now use it to record with a PC, for example.
But these outputs are not affected by the controls on the amp, and that has always been the case.
The line output is generally wired directly to the input, with only the source selector interposed between the two, of course, so that the line output corresponds to the selected input.
If the output level is adjustable on the preamp of your turntable, you can use it to manage the volume. If I understand correctly, the sound coming from the amplifier goes into the PC and then comes out to speakers. You can adjust the sound as you wish, volume, sound equalization, etc., from the computer. Logically, everything is adjustable.
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Our differences? They are our greatest chance to open up to life. (Roland Poupon) -
Ok, thanks, so the second solution is completely out of the question, that's what I thought, but I preferred to ask just in case.
To explain why I bought this amplifier is quite complicated, but to keep it simple, I have several audio systems.
I have a dedicated room for the creative aspect of music where I have all my gear dedicated to composition, recording, mixing, and mastering.
I record all sorts of things like musical instruments (guitars, basses, drums, etc.) but also equipment like synthesizers, samplers, vinyl turntables for scratching, etc.
In this room, I have my main computer with my music software, but also compressors/limiters and equalizers mounted in racks.
I won't go into details, but this part is quite technical and very advanced in terms of quality.
So as for the control and precision part, this is where it happens, and this area is perfectly mastered.
Next to that, I have another computer that I mainly use for browsing the internet, but I also listen to a lot of music on it and do comparative listening of my productions on another monitoring system.
This is where this little amplifier was supposed to come in; before, I had just connected a turntable directly to the sound card with an RCA/jack cable, and that was enough, but I had to crank the sound card's volume all the way up because I was lacking power between the two.
So I thought a cheap little amplifier with a minimal amount of control would be useful.
Here I'm not looking for a lot of power and precision, just enough to enjoy listening to a good old record.
So, heeeeeuuuu there you go lol, all this to say that despite all my knowledge in music production, I made a slight mistake because of a damn RCA output.
DYING OF LAUGHTER.
But it's not a big deal because this amplifier for less than 100 bucks seems pretty good, I just have to order a pair of passive speakers to go with it, and I'll have a little listening system for vinyl.
Plus, I can listen to them without turning on my computer, and I can enjoy reading a good book or drawing.
I was a bit annoyed and didn't understand why an audio output from an amplifier didn't go through the amplification signal; I found it completely ridiculous.
Especially since I use equipment with RCA inputs and outputs, and I had never encountered this issue before... nonsense, seriously.
But hey, we learn every day, I don't know anything about Hi-Fi equipment; my thing is more music creation based on computers, active speakers, and especially damn thick XLR and TRS jack cables.
Thank you anyway, you were able to answer my question, and I appreciate it.-
I was a bit annoyed and didn't understand why an audio output from an amplifier didn't go through the amplification signal; I found it completely ridiculous.
I understand, if you've never witnessed the phenomenon yourself while handling an amplifier, it's true that this information isn't necessarily obvious. But it's always worked like that. Since this output was intended for recording, it shouldn't be affected by the volume. Can you imagine, when we were recording a piece on the radio with our Hi-Fi system, if the recording level changed when we wanted to increase the volume while listening to the radio? ^^
I don't know anything about Hi-Fi equipment; it's true that my thing is more about music creation using a computer, active speakers, and especially some really big XLR and TRS Jack cables.
Well, that's funny because mine is quite the opposite.
If you had chosen an amplifier with a headphone output, it would have likely worked as you wanted, since it's pretty much the same as the line output, but the signal is often taken from the speaker outputs, so it's at the end of the process in a way and undergoes all the previous adjustments. Too bad.
You're welcome! ^^
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Oh, your message has appeared on the forum, I saw your private message and I replied to you.
So now I'm starting to look a bit at passive speakers and I'm not sure which model to choose; there's one brand that caught my attention but I've never had the chance to listen to its sound quality.
The brand is NUMAN.
There's this model that I really like, the NUMAN Retrospective 1977 MKII.
It's a bit expensive, but I know that if I choose cheaper ones, the sound will probably be poor.
They seem quite good and heavy.-
I didn't know about this German brand, but it doesn't seem to be a reference in the field... The Auna amplifier also comes from our friends across the Rhine; do you like German brands? ^^
These speakers have a more column format than bookshelf. The Auna amplifier would not handle speakers with an impedance lower than 8 ohms well, and these speakers have an impedance of 4 ohms.
Moreover, I'm having trouble finding their sensitivity. The only number I found is 86.5 dB (/W/m I suppose). It's not reassuring not to find such important information, and if this is the figure, it’s really low in terms of sensitivity.
Impedance too low, sensitivity too low, with the two 20 cm large woofers, the poor amplifier will struggle in vain.
By the way, when you see that the amplifier is rated for 125W RMS/channel, it's kind of amusing, considering that HIFI amplifiers that cost 2 or 3 times more serious are often rated for less than that (and even if it’s not the same class of amplification).
It's better to stick with recognized brands.
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Sure, I can help you with that. Here's the translation:
I had chosen to talk about this model solely because of this story about impedance.
So we're on the same page about that, and we can continue this discussion.
The only thing that bothers me a bit in this area is that I know absolutely nothing about Hi-Fi, so I have no reference points regarding brands or technical specifications. The only thing I know about the so-called "high fidelity" is that this term is used erroneously to deceive buyers.
As for the German brands, I'm not really sure what to think, but I suppose there can be good stuff everywhere. The very first audio equipment I bought when I wanted to start recording was German; I won't name the brand, but I must say it was a bit of crap anyway. ^^
So I'm not necessarily a fan of everything German, but there are surely good things made in Germany.
The Auna amp I bought, I chose it solely based on its price because I didn't want exceptional gear, as I've explained before.
Oh, it's a shame I should have come to this forum before making my purchase; I probably would have chosen another one, but in the end, maybe it's a good thing because if I hadn't made that mistake, I would have missed out.
I will probably need to buy another one, but I clearly did not aim to put together a top-notch high fidelity system.
If I had the space and the means, I would have liked to equip myself with a quality system, but I dedicate all my resources to buying gear for production and creation.
In the future, I might have more space to build this kind of system, so if you're willing to guide me, what do you consider the supreme references in passive column speakers? -
It seems there are some issues with my topic for posting messages; sometimes it takes a long time for them to appear in the discussion.
Maybe because I mentioned that the problem was resolved?
But anyway, I was able to continue the topic in private discussion; I will probably open another topic to talk about passive speakers, but if a moderator passes by, you can close the topic.
Thank you for your help. :) -
Hello and thank you for your responses.
So it's normal ... I foolishly thought before making this purchase that the RCA audio output went through the amplification signal, what a gross mistake on my part.
It's not dramatic but it's bothering me because now I have to rethink the configuration I had imagined.
Indeed, I could manage the volume and equalization using my PC but that's not at all how I wanted to proceed.
To keep it simple, I am an amateur music producer and I already have everything I need regarding equalization, compression, etc. ... I already know quite a bit about this, I compose, mix, and master my own music.
The goal was to have a turntable that would allow me to listen to records without using the higher quality turntable which I use for sampling and which is connected to an MPC (for those who know).
It's just to limit wear and since I often spend hours listening to vinyl, it seemed wise to set up a secondary listening system in a minimal configuration.
But I still wanted an amplifier with a minimum of control because often when I listen to vinyl, I like to tweak the sound a bit in anticipation of what I'm going to do next in my composition and mixing process.
So now, either I buy a pair of passive speakers that I will connect directly to the output of this amplifier, but I already have several high-quality monitoring speakers so buying another pair bothers me a bit.
Or, which leads me to another question:
Do you think I could connect cables from the speaker output of this amplifier to a jack connection directly into an external sound card for PC?
I’m not really sure if this kind of connection is possible and if it wouldn’t be a bit dangerous... .-
Do you think I could connect wires from the speaker output of this amplifier directly to a jack input on an external sound card for a PC?
No, certainly not.
You would need to lower the speaker output to line level. And... that's pretty much what is already done inside an amplifier; that's the headphone output!
Unfortunately, your model does not seem to have a headphone jack, from the photos I've seen...
However, nothing prevents you from creating this setup separately, but the audio signal would be heavily altered between the source (turntable) and the PC... preamplification, amplification, and then bringing it down to headphone level...
But there is something I don't understand.
Evidently, you bought this amplifier but you don't want to use the amplification part. You just want to modulate the signal in every way and send it to a sound card. But then why did you buy an amplifier instead of, for example, a graphic equalizer? You would have more precise control...
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