 Hello everybody and welcome back to my channel. So I'm just going to do this little part too of this little pre-amplifier. Now as you can see I've already built it up and this thing is an absolute pleasure to build. I didn't really notice it yesterday but all these carbon resistance got this nice glossy coat over them. It makes them feel like their quality and they say it's absolute pleasure to build. I've been aiming about it all the resistors are in the correct way so you read them from the top down on each of the bands. All the capacitors are in the same way round apart from the electrolytics that have to be polarized the way that they need to go. And yeah pleasure to build, absolute pleasure. So enough of that. I've got it connected up over here, I can just adjust there. I'm using this LM1875, both of them got them connected up to this here heat sink. Now the wiring may look a bit convoluted here. You can see all these wires here but really you know once you understand what they're doing it's pretty much simple enough. So I'll just show you what I've got going on over here. Just that. So again because we've got a positive and we've got a negative and then we need a central point and that's where these two cables get joined together. Now there's two coming out the top, two coming from here because we've got two different amplifiers and they don't like to be daisy chained. You could possibly daisy chained stuff. I don't like daisy chained stuff, I prefer them to have their own basically star pointing back to the actual power supply rather than hook one up to here and then daisy chained up to the next one there. I don't like doing that. So that's what you've got. So these two come out the top here and there for the center point here and then these two are the ones that are coming out the sides. We've got to come out the sides there and the same for this coming out of here, this coming out of here. So this channel and then the two in the middle, this one here and this one here is for the center point. There's zero. Connections on here. So we've got our left and our right out going to our left channel, going to our right channel. So yeah we've got our left channel and our right channel. So we're going to make that a little bit brighter. We've got our right channel feed here, which is from here and the left channel feed here which is from here and then we've got our input which is just going into this little music player. It's nice and simple. This is on I believe around about 55, you can see that from there, 55 which is good enough and this at the minute is set to zero. Now this gets powered itself. It does say in the destructions, it says to give it a just try and get rid of that light thing. Can I get rid of it? Never mind, let's put it off there. Ignore it if you can. It does say give it a 15, zero and 15 but this isn't, this is 12. So I've got a 12, zero and 12 which is connected up through the transformer, through its block connector. Because I didn't know, I just wanted to check if everything was going to be okay. It goes over to my variable AC supply. Alright, so that's that. Now let's have a little listen to it. Alright, so you'll be able to see over there on the power supply side of things on the power supply camera that, let me just see if I can just settle that down. That we've got, it's looking around about 100 milliamps and this is because there's two connected now where before it was around about 50 per channel. So that could, let's be about right. So let's just turn this up a little bit. It's absolutely lovely. These are set at zeros, sort in the middle as close as I can get them. I can't remember if I get away with this. This is Chronos. It's called Lucky Boy, Clever Boy. I've played it on a few of my flight videos and I think I've been okay with it, so it's wrong to use this. I'll give you an indication of how the bass goes now. So I turn it about quarter the way on. That's about a third probably. Another third. And then full. I think it's always best to compliment the bass and the treble. So that's about a third on and about a third for the treble. A bit more treble. I'm going to back them both off. I always use flat tone anyway. I've always had to think about flat tone in it. But looking at it like that, that's how the artist wanted to give it to you. They'd turn up the bass and everything on there. I don't really have a great deal of anything else I can play that I know that's just going to be okay. But I can tell you now, this little thing sounds lovely. It does sound lovely. I'm not saying that just because I'm the one who's sat here and put it together and I want it to sound nice. I'm not saying it because it does sound nice. I'm not sure if that sounds that nice. That once I tested it a little bit earlier, it got it all going. I always have another one because I'm now what I want for my main amplifier, which is the discrete ones I built. I do have a complaint about this setup the way it is. I haven't noticed it before, but I'm going to share the complaint with you now. And it's this. Let me just put that down like that. It's more of a listening thing this is. I'm sure you hear it when I did it. That. Hear that noise? And I'll do it again when I put it on. The pop. That. Listen to it again. That. I don't like that. I don't get that with you. I don't think anything like that. It's just one of those things maybe I think I need to look into how I can get rid of that. It's probably over saturating the microphone here. I'm just wearing the microphone on me as well. I'm not trying to put it in any type of position in front of them. It's just being worn on me so you get it how I hear it ish. Okay. I mean it's good. I quite like it. It's just going to repeat itself this thing. So it's still the same. I've just evened those two up so they've got exactly the same components on them. And yeah I would say this is a definite. If you're in the market for wanting to buy a kit, a preamp kit, turn and base control and the volume. Yeah I'd say this. But there are other ones out there. There are other ones out there and I don't know enough about the other ones to say we're there. But this I'm very happy with. I'm not going to try it full blast or anything like that because that'll be for the power test stuff that we can see when it makes any horrible noises or does anything on the frequency response. And I'm not using any 5532. I'm using the chip that came with it, the Pamp that came with it. I can't remember what that is. It's a 4558 or something. I don't think it is. It could be. I can't remember what it is. I can't see it from here. Let's have a quick look again. Oh my goodness. Didn't want to do the video. It's the 4580JRC. Now I don't know if that's Japan recording company or something like that. I'm sure I've seen a JRC like it's Japanese recording company or something like that. I don't know if that's the same company but there's nothing to do wrong with it. I looked it up on the data sheet and the data sheet seemed pretty much comparable to the any 5532. So yeah but I will change them out when I come to do the tests you know on the on the scope and stuff. I'll then switch them out a bit to have a little look at them but that's going to take some doing. So anyway that's it. I'll let this I'll think I'm going to let this just play out wherever it is. Is this it? Yeah clever boy. Oh sorry. Let's do that instead. So I'm just going to let this run out now and for your pleasure.