I have listened to them both, but the Simaudio I heard was the I-5 LE.
That said, to me, the Simaudio sounded better overall - the A5 seemed detailed, but a bit light in presentation without much depth on the bass side - a slightly flat sound. The Simaudio has better flavor/bass depth and yet still highly detailed. It was my close second choice in a recent integrated search.
However, after listening to all available options, I ended up with a Cayin A-88T with 6550s. Never thought I'd end up with a tube amp - the thing sounds amazing. I thought it was a far sight better than most everything I heard...
That said, to me, the Simaudio sounded better overall - the A5 seemed detailed, but a bit light in presentation without much depth on the bass side - a slightly flat sound. The Simaudio has better flavor/bass depth and yet still highly detailed. It was my close second choice in a recent integrated search.
However, after listening to all available options, I ended up with a Cayin A-88T with 6550s. Never thought I'd end up with a tube amp - the thing sounds amazing. I thought it was a far sight better than most everything I heard...