clearly then you haven't heard this duo? 🙄
there's a whole lotta stuff goin' on musically and sonically with this pair of very competent players mixing the aesthetics of flamenco and "acoustic metal shredding"
but seriously, more a demo of dynamics (micro and macro), textural detail, and imaging - more challenging than you might think
Haven't listened to them on the speakers yet. I guess my dad wouldn't appreciate it at this time of the day (night). But maybe tomorrow i can try it 😉
Stool Pidgeon Blues with Lightnin' Hopkins sounds interesting on my headphones. The soundstage is like really really far away 😛
for some bare bones acoustic roots blues, well enough recorded in the "modern era" ( ie. 1963) , try:
(would be very interesting on 'phones, I guess - I'm just not a fan of them)
BTW the youngster back-up player in bottom left photo is Buddy Guy, and the slim bass player in bottom right is Wille Dixon - helluva pick-up band
(would be very interesting on 'phones, I guess - I'm just not a fan of them)
BTW the youngster back-up player in bottom left photo is Buddy Guy, and the slim bass player in bottom right is Wille Dixon - helluva pick-up band
for some bare bones acoustic roots blues, well enough recorded in the "modern era" ( ie. 1963) , try:
(would be very interesting on 'phones, I guess - I'm just not a fan of them)
BTW the youngster back-up player in bottom left photo is Buddy Guy, and the slim bass player in bottom right is Wille Dixon - helluva pick-up band
I actually have a song from that album in my reference playlist. "Good morning little school girl". Sounds good.
Lads, Rodrigo y Gabriela...
DON´T talk about them or everyone will storm the record shops. Absolutely stunning recording work, too.
Pity all the sad sacks who don´t know what "microdynamics" are - they have never listened to acoustic guitars via a good fullrange.
Another secret wunderwaffe like them: John Renbourn (founder member of The Pentangle). His 60s vinyl stuff of course, or, if you can´t get that, try to find his "The Nine Maidens" CD.
Pit
DON´T talk about them or everyone will storm the record shops. Absolutely stunning recording work, too.Pity all the sad sacks who don´t know what "microdynamics" are - they have never listened to acoustic guitars via a good fullrange.
Another secret wunderwaffe like them: John Renbourn (founder member of The Pentangle). His 60s vinyl stuff of course, or, if you can´t get that, try to find his "The Nine Maidens" CD.
Pit
Well, I will have wood for enclosures shortly, and I have some zebrawood I am playing with to see what my options are for finishing it. I figure that the veneer will be the most difficult part of the process. If the cabinets turn out well I will post some pictures, otherwise I will have to hide my shame. Hopefully I can get these put together and fully finished in less than a month.
Some pretty good suggestions for music here too, rather enjoyable to listen to.
And upon doing more reading, passive radiators look more and more like ports only with worse tradeoffs in some cases. If only there was an easy way to cheat physics.
Some pretty good suggestions for music here too, rather enjoyable to listen to.
And upon doing more reading, passive radiators look more and more like ports only with worse tradeoffs in some cases. If only there was an easy way to cheat physics.
Just found something interesting and disturbing.
I found a picture of the Primare I21 stereo-amplifier http://www.prisjakt.nu/bilder/bild.php?p=19806&type=inside&size=800
It looks really simple. My mate's DIY LM3886 gainclone which looks this like http://www.minhembio.com/forum/uploads/monthly_02_2011/post-155579-1298728998.jpg
The LM3886 costed around 2800kr to build, the Primare costs around 12000 to buy new. Still the LM3886 looks to be a better amplifier, can it be possible?
I've been looking at the Naim Nait 5i, but it costs around 10000 and that's a little more than th 6-7k i'm willing to spend. I might find one used though, but i doubt it will sell for 6-7k.
Let's say if i build something myself, with all parts included, for 4000kr (around $630). Is it possible to get something that's similar to, or better than, for an example the Naim Nait 5i?
I mean, i could build some fancy dual-mono which you only see in really expensive amplifiers. And i'm aiming to get around 50-60wpc so i don't need any monstruous stuff.
I'm also pretty sure i could use the equipment at school if i ask the electronicsteacher nicely 😀
I found a picture of the Primare I21 stereo-amplifier http://www.prisjakt.nu/bilder/bild.php?p=19806&type=inside&size=800
It looks really simple. My mate's DIY LM3886 gainclone which looks this like http://www.minhembio.com/forum/uploads/monthly_02_2011/post-155579-1298728998.jpg
The LM3886 costed around 2800kr to build, the Primare costs around 12000 to buy new. Still the LM3886 looks to be a better amplifier, can it be possible?
I've been looking at the Naim Nait 5i, but it costs around 10000 and that's a little more than th 6-7k i'm willing to spend. I might find one used though, but i doubt it will sell for 6-7k.
Let's say if i build something myself, with all parts included, for 4000kr (around $630). Is it possible to get something that's similar to, or better than, for an example the Naim Nait 5i?
I mean, i could build some fancy dual-mono which you only see in really expensive amplifiers. And i'm aiming to get around 50-60wpc so i don't need any monstruous stuff.
I'm also pretty sure i could use the equipment at school if i ask the electronicsteacher nicely 😀
One of the (perhaps only?) disadvantages of even a really nice DIY kit like the 3886 is resale value in the case that you decide to move on - but since you've already experienced the joy of building your own first speaker, I'd definitely recommend going that route at least once.
The teacher could well be really interested in the results of your project, and it might consider it and your speakers as a "show & tell" for the class.
Yeah. But for an example the dual-mono LM3886 kit. What could it be compared to if buying something new?
A well executed chip amp can be very good compared to a commercial amplifier paticularily with an easy load, as most FRers are, Everyone needs multiple amplifiers.
I'd say go ahead and buil a chip amp to get your feet wet. Do not try to spend your entire budget,
My personal preference would be an LM1875 kit.
The heart of these is their simplicity and a skookum power supply. Get a 15-18V (x-0-x Volt) transformer of 150-200VA (or 2 half the size), see if you can repurpose something for chassis/heatsinks and go from there. You'll end up with a nice 20-25W amp. And if needed the expensive bits -- the transformer(s), can be used for a killer PS for a SS pre-amp/XO
Remember that if you take the retail of an amp, you can likely source & build the same amp (if you can suss out the design) for a 1/5th (the manufacturer probably pays a tenth (including labour, but not overhaed, packaging, advertising etc))
dave
I'd say go ahead and buil a chip amp to get your feet wet. Do not try to spend your entire budget,
My personal preference would be an LM1875 kit.
The heart of these is their simplicity and a skookum power supply. Get a 15-18V (x-0-x Volt) transformer of 150-200VA (or 2 half the size), see if you can repurpose something for chassis/heatsinks and go from there. You'll end up with a nice 20-25W amp. And if needed the expensive bits -- the transformer(s), can be used for a killer PS for a SS pre-amp/XO
Remember that if you take the retail of an amp, you can likely source & build the same amp (if you can suss out the design) for a 1/5th (the manufacturer probably pays a tenth (including labour, but not overhaed, packaging, advertising etc))
dave
$45 for the kit, $61 for one 160VA 2 x 18V / 2 x 4.44A transformer (maybe i should build a dual-mono to reduce humming?). Then add maybe another $40 for the remaining parts as a cheaper pre-build case, contacts and such. I could probably get heatsinks at school or killing some old computers.
If i go with one transformer it's ~$155 for everything. Dual and it's around $216.
Oh, i forgot the shipping but let's add $25 for that. Still shouldn't get that expensive. And i like the idea of multiple smaller amplifiers... And since these are so small i could maybe fit them in tiny cases aswell...
What do you mean with "And if needed the expensive bits -- the transformer(s), can be used for a killer PS for a SS pre-amp/XO"
If i go with one transformer it's ~$155 for everything. Dual and it's around $216.
Oh, i forgot the shipping but let's add $25 for that. Still shouldn't get that expensive. And i like the idea of multiple smaller amplifiers... And since these are so small i could maybe fit them in tiny cases aswell...
What do you mean with "And if needed the expensive bits -- the transformer(s), can be used for a killer PS for a SS pre-amp/XO"
The power supply cases from computers have been used for compact chipamp chassis. One of my 1875 projects has PowerPC G3 heatsinks set aside for it, but i now think i'll use some from a dead eMac.
It is unlikely to be your last amp. Sometime down the road, you may find yourself looking at it collecting dust on a shelf and saying, the power supply in that box would make a great start for a regulated power supply for this pre-amp i'm working on. (ie good PS parts are often an investment)
dave
Would it be difficult to convert it to dual-mono if i start with a single stereo one? Just get another PCB with parts and another transformer?
Probably easier to just build another one (and then you'd have an extra channel per side, which could be idle, drive a second driver, or a tweeter). More likely you'll just build another, different amp, and repurpose the 1st.
dave
dave
Provided you've allowed for the physical space and layout, it could be as simple as that. Just be sure to provide some measure of fail-safe protection on any DIY SS amp - we've learned the hard way that FRD are not bullet-proof.
As Dave suggested, this likely won't be your only amp project.
All aspects of DIY audio can be as addictive as speaker building, and aside from budgets, the biggest issue is juggling time and priorities - the fun slows down a little bit when married life or a job gets in the way of your hobby.
says a guy posting from his day job
have fun
I will be making holes and testing things shortly but I do have a question about connecting the EL70 speakers to internal cabinet wire.
I plan on soldering them directly once I have veneer applied to the cabinet, but I would like to test them and run them in a bit before applying veneer. Is there a push on connector that will fit on the EL70 for testing use?
If possible I would like to avoid having to solder the terminals more times than I have to.
I plan on soldering them directly once I have veneer applied to the cabinet, but I would like to test them and run them in a bit before applying veneer. Is there a push on connector that will fit on the EL70 for testing use?
If possible I would like to avoid having to solder the terminals more times than I have to.
Lerg,
Tool & hardware shop, automobile aisle. You usually get sets of push-on connectors and they will contain the size you need. You might have to buy a crimp tool, but that won´t ruin you.
Tool & hardware shop, automobile aisle. You usually get sets of push-on connectors and they will contain the size you need. You might have to buy a crimp tool, but that won´t ruin you.
I have these:
Btw, i just came to think of a 6.5" EL70, that would be badass 😛
An externally hosted image should be here but it was not working when we last tested it.
Btw, i just came to think of a 6.5" EL70, that would be badass 😛