I am from England and this is my fist post in this forum so I will Say Hello.
I live in the North east Part of Thailand.
I have purchased Two, Two Way Relatively Nice Looking speakers and want to use for Karaoke.
However they hiss quite a lot which seems to be comming from the Tweeters.
The Woofer is an OBOM Model 12-OB4899, Power 150w. Impedence 8 OHMS,Usable Frequency 30Hz to 2KHz, Aver Sensitivity 97 db, T-O Plate , T-O Coil 45mm. They sit nicely in a large cabinet which is made from 21mm Ply.
The dimensions are as follows. W 14" H 27" D 14" They have a bafle 21" from the top of cabinet made from the same ply. Which extends 9" from the front of the speaker. They have 3 x 3" x 3" Cones in the bottom section.
The woofers are connected direct with no Resistors Capacitors or Inducters connected Connected In Parallel to the Woofer are Two Tweeeters which I have no information for. Except I have used a multimeter which reads 4 Ohms.
Thes are connected inseries si I therfore have a parrell serial set up. In the serial connection is wired a WT 50v 3.3 Micro farad Capacitor.
This would seem to be making a cross over at 6KHz.
Can any one help me in making a few decisions.
These will be used eclusively in the outdoor environment and Top HiFi Quality is no needed However I would like to have something that sounds better than this. I have the Amp Requirment to drive these speakers and also have a 10 Chanel Graphic Equaliser.
I think I need to Scrap the tweeters as I have no information on them and can't get any.
Tweeter specs would help. and crossover levels also.
Thanks and look forward to your responses
P.S I am a fully Qualified electrical Engineer so you can be technical to a certain level because this is a specialist subject.
