What would be the result if I mixed an 8ohm woofer with a 16ohm compression driver using a 16ohm crossover. ie 130a and 2441. Would I be guessing correctly that the woofer would be somewhat muted?
What would be the result if I mixed an 8ohm woofer with a 16ohm compression driver using a 16ohm crossover. ie 130a and 2441. Would I be guessing correctly that the woofer would be somewhat muted?
Robin
You can and we do mix drivers of various impedances with no problems. The crossover is the critical point. Do you have the network schematic? Is it a JBL network?
Widget
Hi Widget,
The crossover is a JBL 3115 and I thought I might try a pr. of 130a 8ohms woofers that are available. My LE15s have a rub and may get a full reconing.
Robin
The 3115 is spec'd for 8-18 ohm LF and 16 ohm HF, so you should be good to go: http://www.jblpro.com/pub/obsolete/F..._Networks1.pdfOriginally Posted by rloggie
Did you pick up those 130A's recently on craigslist?
John
Yeah, those are the ones. They may be gone already but I've emailed to find out. I talked to the guy right after they appeared but couldn't get away to pick them up. We'll see if he calls back tonight.
Robin
The problem isn't the impedance mis-match... the problem will be the sensitivity difference between the LE15A and the 130A. The new woofer will have significantly greater output above 100Hz than the LE15A had.
Widget
Originally Posted by Mr. Widget
Since neither of these speakers list sensitivity in the library how does one know the differences on paper?? Or do you know by experience?
Robin
In this case I do have experience with both... but the info is also in the library.Originally Posted by rloggie
http://www.lansingheritage.org/image...ome/page15.jpg
I see. These would go into the Hartsfield cabs. I wonder what the original 150-4 sensitivity was?? It seems to be cut from the same cloth.
http://www.lansingheritage.org/image...-150/page1.jpg
Robin
Can't help you there... but if the LE15As were sounding right, the 130As won't.
Widget
Do we consider K/E145 an option for Hartsfield?
Their response is closer to 150-4C than LE15A is, no?
[Thinking "Everest" here....]
I have a pair of 130As lying around if you are interested. I would even trade them for a NICE power amp than can be used in mono. This be them:Originally Posted by rloggie
While your on the topic maybe someone can answer my question from their practical experience with L pads. I have some 3106 crossovers for 2405 tweeters (16 ohm) and noticed the L pads were marked 8 ohm. Would the 8 ohm L pads diminish the output of the crossover or have any other negative impact?
but this time with ALtec N800 Xover and 515Bs (16 ohms)....
I think that the combo w/ 511B (802-8G loaded) sounds fine but what do I know...
8-Ohm adjustable L-Pad is correct. If I were making it out of fixed resistors, I'd build around 10 Ohms:Originally Posted by majick47
http://audioheritage.org/vbulletin/s...2&postcount=51
There are currently 1 users browsing this thread. (0 members and 1 guests)