I have some 2245h as well with separated voice coils, is there a good aftermarket kit avaiable?
Andrew
I have some 2245h as well with separated voice coils, is there a good aftermarket kit avaiable?
Andrew
Thanks RobOriginally Posted by Robh3606
The dsc 280 can only be set by max 24 db per octive. It doesn't have a high pass filter, unless i am wrong. As for the response i will have to reffer you to Bentwood for the data. They will be coming to complete the real time anylis for phase alignment, offset and response measurements, with in the next coulple of days , I can post the results. The cabinets do produce extreme lows which can be heard in the brick house next to my detatched brick "play room". My wife doen't like when you interfer with the tv sound.Originally Posted by Mike Caldwell
Yes they are horn loaded. The cabinet is designed for the 2245 T/s parameters. As for the amps they are 16 year old Bryston 4bs on monoblock. I live west of toronto and had to tend to buisness in area of Bryston Plant. I took the amps in for a check up today as they have a 20 year warr. I arrived at the plant at 7:30 am to be greeted by Cam the service manager. Cam gave me a grand tour. Everthing is hand built by personnel that care about the product. I spoke to some of the employees and sensed a really estatic workforce. The management obviously is do some right resulting in a product the evryone is proud of, including the consumer. I purchased the 3 amps used 1 year ago. They ran theme thru there testing program and the reults are still up to the original requirement. They even hooked up my Parasound HCA rated at116 or 118 db signal to noise to find out each channel was performong at 95 to 98 db. The para has a 60 hz bzz that i can't seem to get rid of.Originally Posted by Ian Mackenzie
I hope i can sleep tonight. I know i'll be dreaming of 3 more brystons to replace my Parasound.
Thanks for the information. I wish i took a digital picture when the dust cap was off to show you what the discolouration was. I have no idea what a correct colour is for the voice coil. Is it possible that you could post the picture of a virgin coil. ThanksOriginally Posted by norealtalent
I Have a HCA 1206 80 watt six channel amp. I have cleaned the output relays and checked the solder joints . There still is a 60 herz buzz coming from my horns similar to the sound emited from a flourescence light. The sound doesn't get loader with volume. Parasound wants me to send it 3000 miles. Tried cheater plugs, grounding, different outlet with no success. It is sometinghing in the power supply. I had the unit hooked up at the bryston plant and the signal to noise was 95 to 98 db in the six channels which is substaintially worse than the 116 on there spec. I have disconnected the inputs and the buzz was still there. Is there a common problem with these amps. People have mentioned a problem with the transformer mounting but can't tell me the fix. Will i have to try a rope on for fishing
The high pass filtering can be applied in the EQ section by selecting the type of filter you want for a certain frequency. You would want a "shelf" filter.
Mike Caldwell
Power supply de-coupling capacitors! I had one let go, the little ceramic disc caps that filter all the power supply noise over to ground, exactly what I heard, BZZZZZZZZ.Originally Posted by jbldriven
scottyj
Hey JBLdriven....maybe that hum is coming from your pants......i've seen your type before in truck stops and bathrooms.
unplug your underwear
:shock:
Thanks i'll read the manual and give it a try.Originally Posted by Mike Caldwell
What your talking about is a serious problem. The above mention problem results in deeper bass than most speakers can produce.Originally Posted by JBLGUY
. How was you problem detechedOriginally Posted by scott fitlin
I had a crossover that had a really bad buzzing sound. Very loud 60hz type sound, BUUZZZZZZ! This shouldnt be! Checked everything, found nothing, took it to a tech, he found the problem. replaced faulty cap, no more noise.Originally Posted by jbldriven
scottyj
The crossover was electronic correct? I am shure the buzz is in the parasound not the DSC 280.Originally Posted by scott fitlin
Yeah, active electronic xover. BUT, the noise you describe could be PS decoupling caps gone bad, cold solder joint, broken lead, etc!Originally Posted by jbldriven
These caps are used to filter PS noise over to ground, and if you had one that wasnt doing its job, you would hear loud 60hz buzz.
Im thinking this could be the problem with your amp.
scottyj
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