Hi,
So as to be sure that no prejudice is being exerted when I conduct listening tests, I’d like to get an ABX box made. If the ABX box is suitable for blind testing - all the better.
The box will be needed to compare Phono Preamps against one another, and Line Preamps against one another.
Does anyone have a schematic they can link to that shows such a device? I reckon I could ‘design’ a pretty good switching box for Line Preamps (using relay switching), but I’m nervous about using the right kind of relays for low-level signal switching.
Google turns up this link:
http://sound.westhost.com/abx-tester.htm
Any suggestions would be gratefully received. Thanks in advance.
Justin
So as to be sure that no prejudice is being exerted when I conduct listening tests, I’d like to get an ABX box made. If the ABX box is suitable for blind testing - all the better.
The box will be needed to compare Phono Preamps against one another, and Line Preamps against one another.
Does anyone have a schematic they can link to that shows such a device? I reckon I could ‘design’ a pretty good switching box for Line Preamps (using relay switching), but I’m nervous about using the right kind of relays for low-level signal switching.
Google turns up this link:
http://sound.westhost.com/abx-tester.htm
Any suggestions would be gratefully received. Thanks in advance.
Justin