Hi everyone . I kindly ask you for advice.
I need a semiconductor amplifier to be used mainly for measurements with REW and microphone. I don't rule out using it for a secondary audio system, therefore possibly with a good quality/price ratio.
I prefer a vintage amplifier from the 70s-80s-90s to look for on the used market. it must be relatively easier to repair than other models in the event of a fault. expenditure not exceeding €100.
Hello and thanks .
I need a semiconductor amplifier to be used mainly for measurements with REW and microphone. I don't rule out using it for a secondary audio system, therefore possibly with a good quality/price ratio.
I prefer a vintage amplifier from the 70s-80s-90s to look for on the used market. it must be relatively easier to repair than other models in the event of a fault. expenditure not exceeding €100.
Hello and thanks .
I don't know if I will use it for a secondary system of a lower quality level (perhaps never because experimenting with audio has become my life) compared to the primary system, perhaps it will always remain in the laboratory dedicated exclusively to measurements.
I wonder something. For measurements, is it useful to have plenty of power to see how the speakers behave at different powers and then turn to used professional amplifiers which are not very audiophile but can deliver a lot of current? .
I wonder something. For measurements, is it useful to have plenty of power to see how the speakers behave at different powers and then turn to used professional amplifiers which are not very audiophile but can deliver a lot of current? .
I think any mid-tier class D would be sufficient. I use the cheapest I can get, knowing that its THD will very likely be far less than the speaker.
I have one that just plays back from an SD card a 15 minute pink noise recording - plenty of time to get a rough spectrum of what's happening. Could even play back a swept sine file - with REW set to "peak" capture. I do most of it outdoors, because I can.
To take advantage of REW's trick to do indoor measurements with room reflections, you'd need to drive the amp from REW's signal generator. The playback of a file wont work.
I have one that just plays back from an SD card a 15 minute pink noise recording - plenty of time to get a rough spectrum of what's happening. Could even play back a swept sine file - with REW set to "peak" capture. I do most of it outdoors, because I can.
To take advantage of REW's trick to do indoor measurements with room reflections, you'd need to drive the amp from REW's signal generator. The playback of a file wont work.
