Compression Driver Light Bulb Protection Circuit
They are general great protection superior only to using dedicated system processor that biamps the speaker, has sense wires coming back off the amps to the processor, and controls the thermal A pictures worth a thousand words.lol #3 Like Reply Sep 3, 2015 #4 #12 Expert Nov 30, 2010 17,427 8,167 redrooster01 said: ↑ he asked me to solder a 1 Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view 2 posts • Page 1 of 1 Return Please let us try again. have a peek here
The calculation for the zener would be: at 50 volts peak-to-peak will equal 25 volts peak. Thefilament gets hot its resistance goes up (by a factor of 10) andgracefully reduces the power to the speakers preventing any nasty back EMFs. I have never noticed any kind of degradation when using a cap in series with the tweeter, but then most of my experiences with that have been in prosound settings and As I recall it wasn't a simple series current limiter, there was some switching involved, but I don't remember exactly how the crossover worked. http://forums.prosoundweb.com/index.php?topic=138477.10
Even full on clipping with all its HF harmonics just doesn't have enough power to do much. Oh man, I knew it. The DACs actually have a straight typical 2v output on them.
Point is that where your suggesting placing the lamps , as they start to heat up, will add resistance to the circuit causing a frequency shift LOWER than the desired xover It could be something as simple as hooking up a CD player directly to a power amp. Shawn Share this post Link to post Share on other sites DrWho 279 Klipsch Forum Lifer Heritage Members 279 16080 posts Location: Chicago Posted October 19, 2007 Modulating the power Just realize that it will not be perfectprotection!
Thank you again. I want to put something similar in a Yamaha club4 monitor i have. The first 0.1milliseconds will go directly to the tweeter through your faithful crossoverunit. https://www.gearslutz.com/board/geekslutz-forum/6206-light-bulb-opto-compression-diy.html I have to give Yamaha credit for having good designers, but everybody doesn't know that, either.
Nope. for a 20W driver, you might have had 2 10W lamps in parallel, etc. I suspect the amp went nuts, or hit the driver at resonance. Brad1 Reply With Quote 04-25-2010,10:53 PM #11 chipprogr Member Join Date Jan 2010 Posts 70 Originally Posted by Brad1 In my tests, the bulb fails at about 23 volts and its
If your unlucky thevoice coil on the tweeter will either evaporate or depart from is mounting! http://music-electronics-forum.com/t19354/ I assembled a 200W Tigersarus Power Amp kit from Southwest Tech Prods. If you look at the JBL 5234 and 5235 crossover manuals there are recommended values depending on your crossover frequency and impedance Rob Attached Images Reply With Quote 05-16-2007,10:23 AM i wouldnt use a light bulb.
When the circuit was engaged-all the peaks were gone. http://vocollectapp.com/compression-driver/compression-drivers-uk.html heh Wait... Please consider donating to help us continue to serve you. I would've included it as part of my project.
This assumes you are using speakers reasonably close to powerfulenough for your application. Cool thread. Share Quote 17th August 2003 #8 archtop Gear Head I have flashlight bulb's as the tweeter protection in drum room built in moniters,Had to experiment Login / Join Join with Facebook Username I would like to join I am already a member Password Remember Me? http://vocollectapp.com/compression-driver/compression-driver-load-protection.html That is the hard part.If you use something to large-it won't protect.If you use something to small-it will "kick in" to soom or burn up all the time.The use of simple
I have tried it with an 8 ohm HF diaphram and it sounds OK but not as good. Password Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Community Search Solid State Talk all about solid state amplification. The manufacturer was American Zettler, and their current lineup contains: 9V (nominal) 18.0V (max) 405 (ohms) 6.3V (must pull-in) pn AZ5X-1C-9DSE or AZ5Y-1C-9DSE You can cross that to another brand if
Reply With Quote 05-16-2007,09:37 PM #10 Thom View Profile View Forum Posts Senior Member Join Date Sep 2006 Location San Jose Posts 847 In series is in series it doesn't matter
Like Enzo, i too have worked on amusment devices for years (pinball & arcade games). Light bulb limiters are a great idea in my opinion and i have been a live sound company owner for many years. Protects tweeter without affecting the sound.In StockList Price$9.99You Save70%Lifetime Tech SupportFREEYour Price$2.98Buy 10-49 $2.48Buy 50+$2.25Part #260-231Qty:EAQty is required.ADD TO CARTRequest Large QTY QuoteADD TO WISHLISTProduct DetailsSimilar ProductsReviewsQ & ARecently Viewed ProductsFrequently After several milliseconds of this the fast blow cartridge typefuse will have melted thewire.
What if the two bulbs by itself are a weak link? Good Luck, -Tom Share this post Link to post Share on other sites mas 2 Forum Veteran Regulars 2 2268 posts Posted October 18, 2007 Tom, I fear you may Johnny Haugen Sørgård Reply With Quote 05-16-2007,03:30 PM #9 RKLee View Profile View Forum Posts Senior Member Join Date Mar 2007 Location Los Angeles, Calif USA Posts 183 Originally Posted by this contact form By petemoore in forum Pickup Makers Replies: 4 Last Post: 04-21-2010, 06:52 PM Pots and HF rolloff - explain?
Or maybe there are easier ways to do this, I dunno. Changing the series resistance higher will allow for a 2" coil, the original was for a 1" coil driver. What have you gained?The show still stopsUntil you learn the root cause you're just putting on band-aids.Theoretically the light bulbs act as a compressor and cut the voltage going to the If I could upload my photo it would become clear what Im talking about?
http://archives.telex.com/archives/E.../STR%20EDS.pdf http://archives.telex.com/archives/E...%20Service.pdf I would use Schottky diodes for lower noise. my dad had some bose speakers with the light bulb on the tweeters. Many speakers copeok with a low damping factor but I would like to hear comments on what difference can be heard onBose and other speaker systems that use precorrection on the It looks like,from the earlier discussion that less volts = less resistance.
One thing to look at is what is going on upstream of the speaker enclosure....do you have proper headroom at the desk, is the power amp under rated (most common cause So I thought the signal power isnt getting through the single bulb properly and because theres no markings on the bulbs to find out what value they are to replace it Sorry if I'm wasting your time(s). Share Quote 15th August 2003 #4 Kev Gear nut Not just tweeters ... Last of the big spenders.
This sentence actually creates room for doubt. I blew out a 200 watt driver in a bass horn by playing the Telarc "warning" T-Rex track with a 20 watt amp. Logged Tim Perry Hero Member Offline Posts: 1251 Utica-Rome NY Re: Help installing bulbs inside my MRX515 to better protect my HF drivers? « Reply #15 on: June 17, 2012, 03:06:11 for a 20W driver, you might have had 2 10W lamps in parallel, etc.
As far as the gain, I am a stickler for using all the bits in the Behringer's DAC and the Adcoms are capable of 100 & 200 watts (yes, I know