bobdodd Posted December 18, 2009 Share Posted December 18, 2009 I know that plicing the speakers into the same cable I use to connect the FM transmitter won't work, so I think I need a small amp that takes the computer headphone out (the laptop I'm using has a headphone jack only) and provides amplified left and right channels AND has an output I can connect to the FM Transmitter. Can anyone point me in the right direction and save me some searching on the Internet ? Link to comment Share on other sites More sharing options...
ItsMeBobO Posted December 18, 2009 Share Posted December 18, 2009 A boom box will work if you can keep it dry. Just tune to your frequency. Link to comment Share on other sites More sharing options...
iresq Posted December 18, 2009 Share Posted December 18, 2009 Get a Y headphone adapter to split the audio out. Send one to transmitter, send the other to a cheap stereo.Like this: Link to comment Share on other sites More sharing options...
FireMedic4Christ Posted December 18, 2009 Share Posted December 18, 2009 Use a splitter and send one signal to the transmitter and the other to wireless speakers or an old set of computer speakers. Another option I have used is to utilize the unused pairs in the cat5 and get the signal to the LOR boxes and split out from there to a set of powered speakers.Brian Link to comment Share on other sites More sharing options...
-klb- Posted December 18, 2009 Share Posted December 18, 2009 A headphone jack will drive impedances down to the low 10's of ohms, while the FM transmitter and most audio amplifiers are going to be about 1,000 ohms each, or about 500 ohms combined. So other than the risk of ground loops, there is no problem using simple Y cables between the headphone jack, and your audio amp and FM transmitter. In fact, while I don't use speakers for Christmas, the amp for the speakers I used for Halloween is still connected, but turned off. Link to comment Share on other sites More sharing options...
Frank A. Posted December 19, 2009 Share Posted December 19, 2009 Good morningMy speaker and transmitter layout is simpleshow computer, stereo and fm transmitter in same roomwithin ten feet of each otherI chose to use a stereo for the outdoor speakersto allow use during the summer outdoor activitiesnon computer or transmitter relatedFrank A. Attached files Link to comment Share on other sites More sharing options...
bobdodd Posted December 19, 2009 Author Share Posted December 19, 2009 Frank A. wrote: Good morningMy speaker and transmitter layout is simpleshow computer, stereo and fm transmitter in same roomwithin ten feet of each otherI chose to use a stereo for the outdoor speakersto allow use during the summer outdoor activitiesnon computer or transmitter relatedFrank A.Thanks, Frank. This is where I thought I needed to go. I'll be sure to tell Radio Shack you made a sale. Second choice is trying to drive the speakers with a boom box using it as an FM receiver. Link to comment Share on other sites More sharing options...
redsea300 Posted December 19, 2009 Share Posted December 19, 2009 I go out of the FM transmitter(Ramsey100b) with RCA's into the receiver AUX and then drive the exterior speakers I have hidden in my 6 foot trees. One at each end of the display. Using the aux get a better signal the using the Fm receiver portion. Link to comment Share on other sites More sharing options...
bobdodd Posted December 19, 2009 Author Share Posted December 19, 2009 Thanks, all. I needed a conversation to get my brain going.I'm picking up a car radio and a 12v power supply. In addition to an aux-in mini-jack, the radio has an ipod hookup, so I'll use the system in the garage the rest of the year.computer ---- splitter ----------------- Car radio aux-in ---- stereo speakers. | |_____________ FM Transmitter Link to comment Share on other sites More sharing options...
Frank A. Posted December 19, 2009 Share Posted December 19, 2009 Hithere is a way the willwill find itFrank A. Link to comment Share on other sites More sharing options...
eldoradoboy Posted December 21, 2009 Share Posted December 21, 2009 just remember that if the speakers are far away from the viewer it will make all your sequences look like the lights are early and the music is late...doesnt take much.. 20-30 feet and i can tell a difference...-Christopher Link to comment Share on other sites More sharing options...
Frank A. Posted December 21, 2009 Share Posted December 21, 2009 Good morningChristopher can you explain the speaker distanceaffecting the perceived timingmy speakers are centralized in my display80 - 100 foot from viewersI am litterly half deaf and do not hear my speakers well enoughto notice any timing issueFrank A. Link to comment Share on other sites More sharing options...
iresq Posted December 21, 2009 Share Posted December 21, 2009 Third attempt to provide an answer...How many people watch your lights while listening to your speakers?The speed of sound is 1,125 feet per second. If your speakers are 100 feet from the listeners, there would be a very slight delay in sound. You can do the math but it isn't very much. Link to comment Share on other sites More sharing options...
Frank A. Posted December 21, 2009 Share Posted December 21, 2009 Hi Daveso my being hard of hearing is probably beneficial to me!!!!!!!!Frank A.Oh sorry we missed you the other day while you where on the jobI guess we will miss you the 25th alsoMerry Christmas to you and your family Link to comment Share on other sites More sharing options...
eldoradoboy Posted December 21, 2009 Share Posted December 21, 2009 100 feet away would result in a tenth of a second or so delay... many people sequence down to .05 seconds...many people may not even notice... i just thought id bring it up as an FYI-Christopher Link to comment Share on other sites More sharing options...
PaulXmas Posted December 21, 2009 Share Posted December 21, 2009 If you are using an amp, why not use one that has a tuner?That way the amp/tuner doesn't have to be anywhere near the PC!I am using a small Sony portable stereo place on one of our shutters.I have just loud enough that people walking by can hear the sound.Oh and it gets very cold here -45 C last week and the stereo is fine. Link to comment Share on other sites More sharing options...
Steve Constantino Posted December 21, 2009 Share Posted December 21, 2009 Remember the speed of sound will change depending on the humidity and temp. I ran into this problem 13 years ago. The first time I time aligned delay speakers on a large pA ststem for a out door festival. I time aligned the speakers during the day but then at night, show time the delay was off. After being call a rookie by my boss he explained that the humidity and temp had changed causing the speed of sound to change slightly.Lessons learned.....Steve Link to comment Share on other sites More sharing options...
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