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Share your amp and speaker building projects with us!

suckout-midbass droop or HF lack of?

the response is One box Outside

its meant for stacks of 2 or more indoors

one guy measures 114db/1watt ,2 labs,each in a corner of his room(his HOUSE) haha :-D

ive modeld the labhorn-and i got rid of the midbass hole,by increasing the rear box volume-i think that the Volume restriction(to fit in a truck)
meant that for 2 woofers and size,only about 18L could be accomodated each- i used 30L (one woofer) and the response was flat!

a guy called 'hulkss' has done a high compression labhorn remodel

http://www.audioasylum.com/forums/HUG/messages/56004.html

notice that tom Danley modeled,CADed it,and REMODELED with the ACTUAL CAD foldings included :O talk about detail!

il just leave my horn how it is,its close enough

aslong as it loads like it says it will be a great project!

cheers
 
Just Do It !

Mike,

I'm no expert on horns, or speakers, but I have lots of accumulated experience and an an extra large sized modicum of talent. ;) I'm just fiercely interested in learning, and building stuff with my own hands has been my way of doing this all my life. Those large horns are the first speakers I've built in almost 30 years and the fact that I tackled them completely without following anyone else's plans is indicative of the way I generally build stuff, and my sense of confidence in my own ideas. I don't think you should treat me as some sort of oracle or mentor. You probably know a lot more about horns than I do right now. I don't yet have the means to model them on a computer, so I have to do basic calculations on a handheld calculator, make models in real sized hardware, and make modifications the hard way as well. I guess if I become proficient in this field I'll want to move on and meet another challenge. I live for the learning curve. When it is steepest I love the challenge the best I think. The fact that I've made no scrap lumber in three successful experimental speaker designs now out of 3 has to say something about my own methods working at least for me.

I urge you to push yourself away from the computer and build those Labhorns! I'm certain it will be fun. :) Yes the performnce specs look impressive!;)
 
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MikeB,

Any way you can lighten those pics and replace them? You didn't mention, is this your system now? Love to see it! ;)
 
Rob i like your DIY approach
it reminds me of ppl in NZ-just getting on with it and trying things

they just do it themselves

i may know about horns,but its a different matter if i can out it to any use! haha

(im done modeling dont worry :-D)

im not much use with wood-i get my woodcut by someone else all perfectly:rolleyes:

because its 2x12"- i cant afford,(labhorn)
so its my own 40hz basshorn first...then il see if its worth modeling up a 750L 30hz with one 12"

and im wondering maybe i cud sell one to a local AUdio place if they want some PA subs if i make more.

also the more i make,the less costly it is,and more experience,

:D
 
New EL34 Integrated

Hey guys, wow, a lot of great speaker projects- I wouldn't know where to start!

You might not recognize me, but I do a lot of lurking and post over at the vintage TV boards (Hey Rob!). I'm also one of those youngins' who plays with tubes, 22.

Anyway, I just finished, well, mostly, my year-long integrated system. Based on Rozenblit's grounded-grid preamp, a 'Headwize' active EQ, and 150w EL34 monoblocks. Specs called for EL509s but I had nothing but trouble during testing so changed everything over. There are lots of little tricks-infrared remote, motorized controls, microprocessor based warmups, inputs, sleeptimer, etc. etc. It's pretty as a picture under the chassis, but I'll wait until I put the finishing wood panels on it and get the software updated for the LCD for pics. This sucker's been the bane of my existence for quite a while!

Whaddaya think? :dunno:

One thing's for sure....it's heavy!
 
Here's a pic with the lights turned down- the front row indicators are neons that backlight letters corresponding to the controls. The LEDs are for preamp HV, filaments, Powamp HV, sleep timer and remote. The red glow around the vol knob increases as you adjust it, there's a toggle on back for dot mode. The eye is a dual 6AF6 with a 12ax7 hiding under the chassis for gain. Left side of the chassis is the trans for the filaments, regulators and recitifers for the eq and pre (which are the 9 miniatures). For the power amp section, the screens are regulated to a bit over 400v, the plates at 700v. Heehee! :zoom:
 
THAT IS SOO COOL

i want one!

i dont care what it does! need one! haha

u cud use that as props on movie sets for alien spaceship controls!

when i make my own amp, il need to make it as good externally!

Cheers dude!
 
Cory,

You do me proud when someone choses a forum that I have the priviledge of being moderator for to display such a work of art as you just have! I can see why it took you so long to build. Nice going! I am almost speechless. :) That variable glow around the throttle is a way cool idea too!
 
Thanks for the compliments guys, it means a lot. Mikee, let me know when you make that next amp, I've got a couple tricks up my sleeve.

It's tough to tell in the pics, but I painted the chassis Cadillac white diamond (I'm a Cad fan) and used blue metallic for the xformer end bells and also spruced up the vol knob with a concentric ring of blue. The knob is actually from an old freq counter...the rest of that is going towards my vacuum tube digital clock project! :eek:

Any big projects for you guys?
Cory
 
Hi cory
well actualy im planning on fixing my car audio first,DIY style..:rolleyes:
but 'car + audio' isnt allowed here,im sending u a PM about it,


Cheers!:D :D :D
 
Hello
While this may not be a home system, I designed and built all of the speaker cabinets,stage monitors, many associated equipment racks along with making miles of various cables.
The low end cabinets are loaded with two JBL 2226h speakers each with a total of eight cabinets. The mid-high cabinets are loaded with two B&C 12PE32 speakers and a Electrovoice DH1A high frequency driver on a JBL 2385 horn with a total of six cabinets. The stage monitors are loaded with a JBL 2206h speaker and a JBL 2425 or 2426 driver on a RCF HP6040 horn with a total of eight monitors. The main speakers are ran tri-amped with 1600watts to each low end cabinet, 900 watts to mid range and 300 watts for the high end in each mid-high cabinet. The stage monitors are bi-amped with 900 watts on lows and 300 on highs. The amps are all Crown and QSC. Processing is TDM, BSS, Drawmer, TC Electronic, Lexicon, ARX, Symetrix, the mixing board is Allen & Heath.
As a side note to those of you who are participating in the “Music Box”, the live recordings I included in the box were made through this system. The pictures were taken at a summer music festival that I provided the audio production for, the band playing is included on the CD in the “Music Box”.

This is the perfect example of a hobby gone out of control!

Mike Caldwell
 
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Mike Caldwell...now that is cool! Thanks for sharing. You've got some pictures of audio at it's best.


Mikee.e...I love the avatar! Your speakers look great...I just wish I could listen to all the speakers I see people (like yourself) build.

Cory...I missed your post (until now) First off...I usually don't check out the vintage Tv boards...so I may have missed many of your posts. Either way...good ta see ya...welcome aboard!
Now let me say...holy moly! :eek: That amps is extremely impressive looking. I hope you share some of your thoughts (on tube amp design/construction) with the rest of us. Don't worry...there are some of the guys who you'll carry a good conversation with. Myself...I'll mostly be reading what you guys have ta say ;)


thanks guys...all great projects!


(hey Rob...:thmbsp: )
 
Hmm - OK, I made a mistake- Zen and BoZ were my first seriuous amplification projects ... But my very first project were these speakers build 10 yrs ago - and they are still my main speakers ... Based on Focal c500 DiY kit ...
 
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