I have 10 new Edcor WSM 600/2.4K matching transformers. These can handle a 0.5 watt / 10 volt signal. They provide a 2:1 step up in voltage.
I used them with balanced outputs on the direct output of a DAC (signal split with half riding on a DC minus leg and the other half riding on a DC plus leg). The transformer would sum the halves and cancel the DC so no capacitors were necessary (although a small RC low pass was added as a reconstruction filter). It worked nicely. Although they do have a "bit of their own sound" they are much more affordable than the competition.
I paid about $15/unit and they are new but have been sitting in a box for several years. The shipping would be about $5 per box (box can hold up to 10). I will sell for $15 per pair plus shipping. If you buy all 10, I will let you name a reasonable price.
I have problems shipping stuff out of the USA, so no international sales (sorry).
Thanks,
-Tom
I used them with balanced outputs on the direct output of a DAC (signal split with half riding on a DC minus leg and the other half riding on a DC plus leg). The transformer would sum the halves and cancel the DC so no capacitors were necessary (although a small RC low pass was added as a reconstruction filter). It worked nicely. Although they do have a "bit of their own sound" they are much more affordable than the competition.
I paid about $15/unit and they are new but have been sitting in a box for several years. The shipping would be about $5 per box (box can hold up to 10). I will sell for $15 per pair plus shipping. If you buy all 10, I will let you name a reasonable price.
I have problems shipping stuff out of the USA, so no international sales (sorry).
Thanks,
-Tom
This is a good deal and a good way for anyone to get started with this technique. I've done this will several DAC brands with great success; AKM, Burr Brown, ESS. I like the DC blocking of the transformer and the common mode rejection of the DAC signal, and the decoupling. My favorite DAC output. 