Products > Test Equipment
To all the audio guys out there.
pope:
Thank you all for the replies. A lot of valuable information to digest once I find some time.
I have some 1646s laying around.
I hadn't thought of the qa461 but it seems to be unbalanced, right?
trobbins:
Another option is an audio signal step up transformer. Not sure about your software's capabilities, but with REW you could do a loopback calibration curve to normalise the amplitude response, and if you really wanted to lower harmonic levels of your test setup then you could null the loop harmonics out by modifying the harmonic levels/phases of the signal generator.
The Soulman:
--- Quote from: pope on November 15, 2024, 08:44:11 pm ---Thank you all for the replies. A lot of valuable information to digest once I find some time.
I have some 1646s laying around.
I hadn't thought of the qa461 but it seems to be unbalanced, right?
--- End quote ---
I couldn't find much if any specifications on the qa461 apart from "up to 1 Watts" that may not even give you enough output voltage and highly likely the speaker negative output terminal is connected to common ground as it is only designed to drive transducers.
Instead you could have a look at the commercial audio manufacturers that make unbalanced to balanced audio converters such as:
https://www.sonifex.co.uk/redbox/rbul1_ld.shtml
24dBu output is fairly common, 28dBu or anything above not so much.
pope:
--- Quote from: The Soulman on November 15, 2024, 11:22:58 pm ---
--- Quote from: pope on November 15, 2024, 08:44:11 pm ---Thank you all for the replies. A lot of valuable information to digest once I find some time.
I have some 1646s laying around.
I hadn't thought of the qa461 but it seems to be unbalanced, right?
--- End quote ---
I couldn't find much if any specifications on the qa461 apart from "up to 1 Watts" that may not even give you enough output voltage and highly likely the speaker negative output terminal is connected to common ground as it is only designed to drive transducers.
Instead you could have a look at the commercial audio manufacturers that make unbalanced to balanced audio converters such as:
https://www.sonifex.co.uk/redbox/rbul1_ld.shtml
24dBu output is fairly common, 28dBu or anything above not so much.
--- End quote ---
Thanks for that. I remember coming across this device many years ago.
The RB UL2 is a bit tempting as it's reasonably priced but I think the specs are not up to the task.
The +28dBu output is really just a ballpark figure. At this point, anything >= +25dBu should suffice, I suppose. I will only use it a handful of times per year.
Navigation
[0] Message Index
[*] Previous page
Go to full version