Hello all!
I need to run some impedance sweeps on my old Tannoy drivers so I have bought a 2 channel audio interface to use with REW.
Following a video on youtube I plan to make-up the required cables to connect the interface and driver but just wanted to make sure I properly understand the way it all needs connecting.
Here is a link to the video:
Does this mock-up look correct?
Thanks in advance!
I need to run some impedance sweeps on my old Tannoy drivers so I have bought a 2 channel audio interface to use with REW.
Following a video on youtube I plan to make-up the required cables to connect the interface and driver but just wanted to make sure I properly understand the way it all needs connecting.
Here is a link to the video:
Does this mock-up look correct?
Thanks in advance!
Member
Joined 2003
No. Audio interface inputs are TRS, not RLG. That's Tip, Ring, Shield for a balanced input. For unbalanced input (what you're doing), connect ring to shield, do not leave unconnected. Connect both shield terminals to driver negative, and to headphone shield/ground as well. Leave Left channel headphone out disconnected, since you're only using 1 channel here.
No need for Youtube videos for this, it's in the REW help file:
https://www.roomeqwizard.com/help/help_en-GB/html/impedancemeasurement.html
Even better solution is to include a power amp, much more flexible jig and only requires a few more resistors. I've already made the diagram for it here:
https://www.htguide.com/forum/articles/do-it-yourself-diy/927384-dual-channel-measurement-jig
No need for Youtube videos for this, it's in the REW help file:
https://www.roomeqwizard.com/help/help_en-GB/html/impedancemeasurement.html
Even better solution is to include a power amp, much more flexible jig and only requires a few more resistors. I've already made the diagram for it here:
https://www.htguide.com/forum/articles/do-it-yourself-diy/927384-dual-channel-measurement-jig
