/diy/ - Do It Yourself

Speaker mounted, they sound pretty good, I'm floored by the car speakers. $100 for the set and for a small room it sounds pretty good. Just gotta stuff the boxes and place grills on the ports.

The mess of an amplifier. Gonna case up the power supply as it's my bench supply and wanna toss the dodgy veroboard for custom pcbs and upgrade the mosfet/caps for higher voltage. 0-380v adjustable, 250mA max current, 12vac center tapped 200va heater tranny, 0 to -70v c- supply. Amp is 6V6 triode connected push pull, with 6SL7 phase inverters and a 6SN7 gain stage. Probably 12w per channel at 5% distortion, not sure since I haven't measured it yet but I'm considering feedback to bring it down a bit, just unsure of the "output transformers"...they're power trannies that work ok but there's no sense in doing feedback calculations only to put on proper trannies and have to do a bunch of work again.

Could just outline the edges with black

>>1702046
What are the best ways of measuring distortion?

Your cab designs are very plain. They may be great, but it looks like a car speaker front loaded to a white box.

You have to shill the snake oil a bit and up the aesthetic for the audiophiles.

>>1702062
I thought of that but doing red or blue.
>>1702236
I use a high quality dac/soundcard, a multimeter and loopback cable for calibration, and the ARTA/STEPS software. Caution has to be taken with the soundcard input but asides from that it's easy. As for the speakers, I'm not gonna sell these but I know what you mean which is why I'm asking. Most of my googling has returned a lot of matt black boxes or the 70's classic cheap veneer boxes with black speaker grills, which is boring and overdone. I was thinking vertical red/black stripes like this bike.

>>1702262
Yeah that looks good and has its own style.

If you could inlay the design, it would be great. There's a lot more curve to that bike where as you have hard lines. Adding deco feet is an easy touch.

>>1702262
but those lines are horizontal inless your poppin sik wheeleez breh

>>1702042
the design is the aesthetic portion. theyre fine. leave them alone.

>>1702280
Can't do inlays, have no machines to work this stuff so I'm stuck with paint sadly. Having 3 pine inlay stripes and staining them red and black would be pretty neat. Get color but also texture to break things up.
>>1702284
Fuckin word.
>>1702419
IDK man, I thought I would dig it but they look too plain. All the crap I bought is removable with soap and water and the boxes are coated in a semi gloss kitchen paint so I can go nuts and clean it off later.

>>1702433
>clean up after

well then, go crazy(-ish)

I like em! Would like to try and make my own after seeing this... Although it doesn't look cheap...

I'm thinking a similar easy box design, but painted with blackboard paint

>>1702612
Cheers. The MDF was free. Drivers set me back $110 for the pair. They aren't the best but sound way better than I had anticipated and can be changed out later. I had to buy tools and supplies like silicone, glue, screws, sandpaper, paint, cotton stuffing, wood filler...list goes on. Needed a step drill set, clamps, squares and jigsaw. I'm up about $500 on just that stuff. If I had the proper tools to begin with I would've saved $300 but they're a solid investment. So not cheap but the alternative is probably 3 times the price to buy for equivalent quality and I have the satisfaction knowing I built/designed these. It's a fair bit of work but well worth it man, you should do it.

>>1702042
I vote to continue the car theme and put that thin carpet wrap on them (think every premade sub ever) in a pleasant color. I think some have patterns instead of a solid color, and much more forgiving than option 2): Wallpaper.

>>1702869
Regards

>>1702829
>MDF
There's your problem, OP.
Real wood would look much better.
You should add a thin piece of good-looking furniture-grade plywood to the front, then a poly finish, possibly with stain.
You'll need to hide the edge a little. Maybe just paint it black? Even a sharpie should make it look less like plywood.

Paint a japanese sun on one of them.

>>1705052
kys weeb

>>1705069
He posted a Yamaha with a similar motif.

Get consistent namefag.

>>1702042
you got three options
paint it black because plain black looks less bland than plain white
add some generic minimalist pattern to it
slap something from a show or some shit you like on it

>>1705052
Let someone else kill you, weeb.

>>1702046
Some more details on this sexy spread of an amplifier?

I'd mount it to metal, at least the input stage to help with noise, if it's a problem anyway.

Speakers look fine, as long as they sound good appearance is irrelevant anyway.

>>1705102
>"Look mom and dad, I'm a big boy on an anime message board."
>"Then I said fuck those weebs and nips lol"

You're already brain dead.

>>1702046
Could you talk more about the transformers and stuff that you used for the power supply? I'm guessing that you're rectifying what's comming off of the 12v heater and then using a voltage regulator to get it down to roughly 6.3v. Is there any reason that you chose to do it this way, or was it more of a convenience thing where you already had the parts? I mean, I get that generally dc filament power results with less noise, but I haven't really seen it done like this.

>>1702869
I ruled out carpet first thing. Had some speakers covered in it before and didn't like it.
>>1705023
I mentioned the wood speaker look earlier...not a fan.
>>1705093
Pic related.
>>1705121
Not much else to say. I haven't done anything with it as of late but when the amp is finalized in terms of testing and components then I will do something better for the chassis. I have a set of 6BQ6s I threw in but they can be unstable and hog a ton of current. Might end up with el34s or 6L6s again which means putting on trannies that can handle the power. I'm actually considering duplicating the amp for a greasy quad system but what's the point....etc, etc.
>>1705194
Nope, heaters are always AC and the majority of tubes are 6/12v. If I really need DC I tend to run the preamp heaters from the cathodes of the power tubes to ground. The mosfet is just a series pass transistor to adjust the voltage but there is no line or load regulation which sucks, but I don't have a high enough voltage overhead anyway.

>>1702042
Sweet fingerboxes bro

OK, my fucking around over, here the boxes are currently. impressed how they turned out, now to wait for the paint to cure and do a final sand. Local store didn't have varnish (carry rattle can paint but no primer or clear...really?) and I didn't want to go to Cambodian Tire so I picked up floor gloss after reading model builders have very good luck with it. These things take so much time and patience to make, it's a good thing I have time off work and happy cigarettes to make me slightly lazy and wait for things to dry/cure.

Input jacks/grills for ports cause fuck rodentia. Now as for my patience sentiment earlier, this fucking shit is exactly what I mean. If I took 2 seconds to think about this it wouldv'e occured to me I should screw this to a piece of scrap wood BEFORE drilling the holes out but no, I just went for it and fucked one before correcting my retardation. As for what these are, a pair of shields covering the video processors on a driver board. I save whatever I can then go through shit every year turfing out crap but it's getting harder to find junkers with THT PCBs. I especially hate conformal coating, board lacquers, lead free solder... Oh well that's why there's aliexpress.