 Hello everybody and welcome back. Now this is the finished build of this. Tubes included. It does look really nice, the whole thing, the whole look of it looks pretty nice and it sounds pretty good. Now there's no volume control on this so it's full on, it's class A so that means full power. It does do a nice thing though, it waits until the tubes are warmed up sufficiently and clicks over a relay there before the actual speaker style starts coming out. It's pretty cool. Listening to it, yeah it's punchy, it's from my little music player, I have that little hybee, it sounds really good and I shall be listening to it again today. I spent about four or five hours listening yesterday. Just chilling out in my favorite listening position using my main speakers, connected it to that and I was using it out the way with the little LM1875 setup. Now first of all I'll tell you this, that when I had this connected to the LM1875 I was listening to my music through this. It didn't really sound as punchy and I did sort of like complain about that a little bit to my friend just saying well I do like it, it does sound nice and clear and he kept saying yeah it sounds really clear doesn't it? But he just lacked a bit of you know umph. But maybe that's because you know I had, I was using this as a volume control so I'd have my music player on let's say 50%, then I'd be using this as a volume control. Maybe if I'd have put it on full blast and then just used the volume of the music player and incrementally you went up, maybe that'd be different, that's what I'm going to have to play around with and test about with. But I used this like I say through the music player LM1875 music player brilliant shielded cable on the input of course, no hiss. A little bit of hum out the speakers if you get you know two feet away from the speakers and you're listening hard and there's no other sound you can hit the hum. If you take this out of course it's going to amplify all the signals around me in the air and it does big ol' noises but if it's in the music player and the music player is set to go on pause then it's really quiet, a little tiny bit of hum out the speakers like I say but you can expect that you're not going to clear that up altogether or maybe you are but on this setup like this. No but if you if you're let's say three feet away a meter away no you're fine you can't really hear anything that's fine that's fine as far as I'm concerned that's fine if I plugged this in this setup into my tv now unfortunately a lot of hiss would come through you know it'd be quite annoying I should have maybe done some capturing of it but by the time I thought about all of that I'd taken all the parts again in maybe later on I might put a little bit up and just include it in another video so there's going to be another video about this anyway so yeah hiss to the point of it was annoying if you turn the volume up really loud yeah the hiss would be you know pushed at the back a bit but of course it's still there but that's where this comes in because if you connect this up through the LMA 1875 into the tv set beautiful it gives a whole new viewing experience yeah it's lovely it's lovely separated it's nice and clear it is lovely now you're going to remember the price of these isn't that expensive so you can't expect it to be super audio file quality but it is good enough to make if you've just got a straight tv setup sound pretty darn good and that's probably why I'm using this for and even coming out the back of my computer I didn't test this on the back of my computer that's why I'm saying that's probably going to be the videos I need to do that the back of my computer the reason I didn't test on the back of my computer when I first thought about it is because I use linux and linux seems to turn off the sound card when it's not in use which means and then you're going to get the noise I'm not being in use but on my laptop I do have a windows partition and so maybe asked to get through on the windows partition no good me go through the virtual box and opening it up windows inside linux because the same thing when there's no sound going through it seems to cut off the sound card and you get the noise but in windows it you know it keeps everything open I think because it doesn't seem to have that effect so I will do that but that'll be another test when we do that I'll do the sound test because no sound test today it's just to tell you how what I thought about this and the difference is between connecting up use for the tv this one works better great little great little add-on for that and the tv set and these alam 1875s works lovely not as punchy I don't think going through my mp3 players what this is but then this is a lot higher gain with these two 12 8x7s here and at two 12 807s here so because he's like a hundred move you know a hundred times gain and these are I think 60 times gain I think I got that right yeah 60 times gain but it does sound nice the transformer itself this I was recently you know it's quite surprised actually that this doesn't really make a lot of noise there is you know a little bit of noise and it does get slightly warm when you're using it but only very slightly in fact my other toroidal transformer which is overkill for this particular application got warmer than what this did so we're talking you know just very mildly very mildly there but nothing on here gets particularly warm when it's running um these for the one here and one here as for these LT 1085s which is basically an upgraded lma lma 8 lm 317 it's slightly warm but not really warm at all that stayed cold even though when I was actually turning the music up not terribly loud at night was downstairs and such but uh loud enough for it to fill this room up nicely uh no that was actually you could feel the difference cold it wasn't really doing a lot of work so um so yeah I'm I'm chucked a punch chuffed chuffed with it so it's really nice I do want to work out some stuff I've actually bought myself a book which is about tube amplifier basics so I can get a bit more understanding about what I can do with this to sort out the hiss maybe on that other the other application with the tv but uh yeah it's nice and of course it looks nice it does look nice now these tubes don't glow that much you don't want them glowing too high anyway because it would just degrade them quicker but um you know they do put a little bit of glow on there's no little LEDs on this lighting them up or anything like that uh which I'm happy about there are a couple of LEDs uh you've got this one here and this one here because when you first set up uh remember this is a allen 317 and allen 317 or lt 8 10 85s uh the difference on them is that these are more efficient and just to round it up in the nutshell the more efficient look them up if you want to see all the differences but they are more efficient and you've got a tweak it to get the right voltage with this uh 2k uh potentiometer and same over here so what you gonna find is that full blast at 16 volts and I did mine I didn't have the tubes in because they run in series connection so you want 12.6 volts on there but then this is a parallel connection to this other tube so ideal 12.6 volts so I didn't have the tubes in and because it's going to be regulated it doesn't matter the tubes in tubes out it's still going to be the same voltage so I just uh I tweaked it one side it showed me it was 16 volts and it was clicking so I just went down tweaking it down until I was down to 10 so I just backed it up just a little tiny bit at a time and it came to 12 point I think mine's 12.45 on both because that's where it just went and it settled so I'm just gonna leave it like that so that's something taken to consideration when you're setting up if you decide to go for one of these is that you just got to set those up so they um yeah so that sets up greatly and that's it pretty much everything else about it is as is it's it's it's okay it's not bad it's I'm sure there are ones out there better of course there would be I've seen some of these uh preamps they're very expensive um when you if you decide to buy these you've got to buy your own tubes here these are Phillips we set it on the side Phillips with these tubes I'm not sure about these two because I've got no markings on them whatsoever that could be for a couple of reasons variable reasons it could be that they're not very good tubes and um people just wanted to wipe off the markings and whatever but it sounds all right to me doesn't sound bad listening to all the depth I've got some nice bass out of I'll actually put a bit of sound on in a second actually because I'm running off here at nine minutes um and yeah and uh yeah it's not too bad at all not too bad at all I'm pleased with it for the price it was about 18 pounds something like without the tubes it could be a bit more expensive I'll put it up on the up on the screen there could be more a little bit more expensive but um you've got to get your own tubes of course and yeah yeah it's quiet it's uh I'll do this on the test and we'll see what we get for the uh for the noises like that but we're just sitting listening to it yeah it's great it's great all right bit of sound I'll let it run out with that and um I'll just pull that in there and pull that in there so yeah know what it's set up because it's got these little connectors you see just go straight onto these boards which is ideal and um I'll just play the music off on it okay well thanks for watching guys