Home Theater Systems - Electronics and Forum - HomeTheaterShack - View Single Post - Which EQ to buy/use for IB cal
View Single Post
Old 01-20-08, 05:44 PM   #8 (Link)
brucek
Shack Administrator
Platinum Supporter
Alias: brucek
User: #6
Since: Apr 2006
Posts: 5,221
  brucek is online now    
Re: Which EQ to buy/use for IB cal


Quote:
So to use a BFD I would need a connector that connects rca to XLR or 1/4-inch (don't know what the differences are between these connections either physically or functionally) and another to reverse for output?
XLR and 1/4"phone plugs are only physically different, not functionally. You can simply use a simple RCA to RCA cable with an adapter like the one below, that can be had from Radio Shack.



Quote:
In order to use REW I would need a mic (ECM8000?), a mic preamp (recommend?) and a cable to go from the mic (what connection is on the mic?) to the 3.5mm connector on my laptop sound card? Any suggestions as to what I would need would be appreciated.
You can use a Radio Shack SPL meter or better, a Galaxy CM140 SPL meter, or the ECM8000 which uses the Behringer XENYX 802 preamp.

All these output line level signals, so the standard microphone input on a laptop is not suffice. It has to have a line-in. most don't, so an external USB soundcard is required. Very cheap to buy..

Quote:
Does the BFD allow attenuation of the output to correct this situation?
No, it's a unity gain device.

Quote:
I saw there is a -4 and a +10 db compensation
This is merely a selection of operating level. It has no effect on the level of the signal. It basically determines maximum level..

brucek


Forum Rules Reply With Quote