Re: [Frameworks] 16mm sound projector speakers
On Jun 29, 2012, at 10:22 PM, Tom Whiteside wrote: It should also give you a ground lift switch, well worth having for those instances when you want to get rid of a 60 cycle hum. Which is pretty much all the time. ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
[Frameworks] 16mm sound projector speakers
Hey guys - I have 2 eiki ssl, and 2 bell and howell filmo sound projectors, none of which came with speakers. I'm trying to project films with sound on them relatively soon and was wondering if anyone knew what the deal with that is. What kind of jack is it? I've been googling and yielding no helpful results. Anyone know where to buy just projector speakers? Or is there an adaptor for the jack so I can go through an amp? thanks! mariah. ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
Re: [Frameworks] 16mm sound projector speakers
Hi Mariah, The jack out of the projector is typically a standard 1/4 audio jack (not stereo) where the tip is hot (usually for driving 8ohm speakers) and the sleeve is ground. You should be able to safely hook up almost any speaker to it unless its a powered speaker expecting a line-level signal. If you are going to go out to a separate amp rather than a speaker you should run the output through a _very_ simple attenuator circuit to knock it down to line level: http://www.epanorama.net/circuits/speaker_to_line.html If you aren't worried about damaging the amp and/or speakers you are connecting the projector to, you can also just try connecting it up with the projector volume set as low as possible - not recommended, but it can work without smoke ensuing... -Good Luck, ---Buck Bito - vtc-sf.com On Fri, June 29, 2012 4:10 pm, mariah garnett wrote: Hey guys - I have 2 eiki ssl, and 2 bell and howell filmo sound projectors, none of which came with speakers. I'm trying to project films with sound on them relatively soon and was wondering if anyone knew what the deal with that is. What kind of jack is it? I've been googling and yielding no helpful results. Anyone know where to buy just projector speakers? Or is there an adaptor for the jack so I can go through an amp? thanks! mariah. ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
Re: [Frameworks] 16mm sound projector speakers
thanks for the input guys. i thought the b+h projectors usually had speakers on the inside of the cover, but maybe that's not the filmosound? My eiki's didn't come with covers. Good to know! I'll run some sound film through to test. On Fri, Jun 29, 2012 at 4:49 PM, David Tetzlaff djte...@gmail.com wrote: I have 2 eiki ssl, and 2 bell and howell filmo sound projectors, none of which came with speakers. These generally DO come with speakers, internal to the projector body. If you're not getting any sound, the problem is more likely the sound circuit of the projector, not the speaker. But as Buck says, the 1/4 jack out is speaker level, and should drive any external speaker, so you can check. Plugging in an external speaker will probabaly mute the internal speaker. I think the SSL may have two jacks, one for a speaker and one for line-level out. ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
Re: [Frameworks] 16mm sound projector speakers
I have had excellent results coming out of projectors by using the 1/4 jack to a DI (stands for Direct Input, I believe) which gives you an XLR output to a sound system, microphone level. Many DI's have a switch to select Instrument or Speaker levels, coming out of a projector you want to choose Speaker unless otherwise indicated. A good DI (also simply called a Direct Box) is what many guitar and keyboard players use between their instruments and the PA systems they play through. It should also give you a ground lift switch, well worth having for those instances when you want to get rid of a 60 cycle hum. Scott is right - if you are driving an 8 ohm speaker you don't need anything other than the cable from projector to speaker. But if you are connecting to a sound system (mixer, amplifier, and speakers), get a good direct box. You can find them at any music store that sells electric gear. They now also come with 1/8 and RCA inputs so you can use them to get your iPod, laptop, or CD/DVD player into the sound system cleanly. Tom Durham Cinematheque -Original Message- From: frameworks-boun...@jonasmekasfilms.com [mailto:frameworks-boun...@jonasmekasfilms.com] On Behalf Of Scott Dorsey Sent: Friday, June 29, 2012 8:06 PM To: frameworks@jonasmekasfilms.com Subject: Re: [Frameworks] 16mm sound projector speakers Most of those projectors have a standard 1/4 phone jack on them, which can drive any 8-ohm speakers. Some of the Bell and Howell machines have a 0.175 phone jack which is a little smaller and requires a special connector that you'll have to order from an electronics supplier. The signal level coming out of there is speaker level, much higher than the line level you would want to put into an amp although you can buy a direct inject box that will give you a microphone level signal. I suggest if you want to drive an external amplifier that you have them modified to give you a proper line output, though, as this will sound a lot better. --scott ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks ___ FrameWorks mailing list FrameWorks@jonasmekasfilms.com https://mailman-mail5.webfaction.com/listinfo/frameworks
