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#202841 - 07/20/03 11:04 AM
Re: PA system?
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Senior Member
Registered: 06/09/02
Posts: 3163
Loc: Pensacola, Florida, USA
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Hi Phillip
No matter which PA you get, I know for a fact you will want two speaker cabinets to get the best sound.
Scott Yee started a couple posts about this. It turns out that the Yamaha instruments such as the PSR2000, 2100 and the Tyros need to be heard in stereo to handle all the effects used on their keyboards to give the fullest sound quality.
There was a discussion if one wanted to perform with one speaker whether it sounded better using the R output, the L/R, or the headphone jack. There seemed to be varying opinions about that, but the consensus was that it sounds a lot better in stereo. I have proved it to myself with my two JBL Eon10G2's.
What I see most people using for your purposes are: Barbetta 32C, JBL Eon15G2, JBL 1500 with powered mixer, and ElectroVoice Sxa100.
In regards to using one speaker, there was a post a while ago about somehow crossing the wires from out of the keyboard to one amp and acheiving about the same sound as two speakers. Apparently it was a system used some years ago for car stereos. I never heard if anyone tried that, but I know I for one would be interested to find out. I am not sure if it's safe to try it, or I would have already tried it myself.
George: That sounds like a pretty nice set-up. Could you tell us how much those speakers weigh?
Best
Scott Langholff
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#202845 - 07/20/03 01:33 PM
Re: PA system?
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Senior Member
Registered: 11/24/99
Posts: 3305
Loc: Reseda, California USA
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A two way speaker has typcially a woofer, for low frequences and a tweeter or horn for high frequences. In most cases, this is typically used in vocal reproduction and since most keyboard amps have used two way systems to get a nice clean and clear sound, this has been the standard practice. Most home hi fi quality speakers have used 3 way systems to get the best, mosts natural sound for prerecorded music where you are not trying to drive a lot of volume out to an audience and rather have a smaller area here a more natural sound. The use of tweeters in home equipment rather than a horn, which carries the sound out farther but with a harsher tone was what has been mostly used in 3 way loudspeakers sold by most companies. What Yamaha has done with the AS312 was to still use a large diaphram horn, but reduce it's size, thus not giving such a harsh sound as most large diaphram horns put out. The use of the midrange speaker definately improves the middle frequences and makes keyboards, CD's, MP3's sound more natural without a harsher tone usually attributed to 2 way speaker systems which never have a mid range woofer. I'm not at my store right now to give the weight but my guess is about 30 lbs. each. The vocal harmonizer effect in the Behringer is a fixed interval which moves with you as you sing. Again, not being at my store, I don't remember if it is 2 part or 3 part but it is a nice effect for something just part of this inexpensive mixer/amp. There are no editing functions in the mixer but Behringer does sell a single rack pro effects processor which is completely user programable and sells for $149.00.
George Kaye Kaye's Music Scene Reseda, California
_________________________
George Kaye Kaye's Music Scene (Closed after 51 years) West Hills, California (Retired 2021)
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#202848 - 07/20/03 05:24 PM
Re: PA system?
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Senior Member
Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
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I just performed in front of 600 to 800 crazies inside a huge tent, which has the absolute worst acustics you could ever imagine. The Sona 32's performed flawlessly, got lots of complements on the music and performance, gave out lots of cards and booked the same job for the same time next year. The guy who owns the place said the entire system sounded so much better than it did a year earlier, and he thought the old system sounded great. Barbetta also makes Sona 42, which kicks butt. The Sona 32's are bi-amped which punches the 15-inch woofers with 300 watts and the 10-inch horns with another 150 watts. A pair provides 900 watts of highly directional power that can easily fill most large halls with incredible sound, and there doesn't seem to be any fall-off from one end of the room to the other in a 200 foot by 150 foot room filled to near capacity.
As for inputting the sounds, I personally run independent cables directly from my Yamaha PSR-2000 to each speaker, therefore providing the rich quality of stereo. Additionally, I run a pair of audio cables directly from my Digitech Vocalist VR directly to two additional channels, which provides not only superior quality harmony, but additionally excellent reverb. For smaller jobs, you can just connect directly into a single speaker and the results are excellent.
Good Luck,
Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)
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