Sound difference: Aleph 30 Vs F4 Vs F6

I have built an Aleph 30 that sounds greats and play loud my 4ohm 87db speakers and the volume for my room is plenty enough.
Someone of us has never compared Aleph 30 to F4 or F6 sound?
I'd like build another amp because built is also fun but I'd liy build an amp that is not whorse than my Aleph.
Thank you!
 
Either F6 or F4 would be a better match with your speakers. F4 is fairly neutral by design, and relies on a preamp or other source for voltage gain (and additional sonic ‘character’.) I find the F6 to be snappier than Aleph, but not as ‘lush.’ Having an F6 and an Aleph in the stable is just about perfect for me.
 
Either F6 or F4 would be a better match with your speakers. F4 is fairly neutral by design, and relies on a preamp or other source for voltage gain (and additional sonic ‘character’.) I find the F6 to be snappier than Aleph, but not as ‘lush.’ Having an F6 and an Aleph in the stable is just about perfect for me.

Thank you. I see you have Aleph J. I think that A30 is different. It gives 40 w on 4 ohm and it seems quite fast. It sounds better than my factory integrated amp from 220 w on 8 ohm...I'm interested in F4 or F6 (or both). I have almost finished pre BOSOZ sets on 10 dB gain.
 
That’s a fair point. I had an Aleph 30 before the J, and it does fair better into heavier loads. Extra output pair and a little more voltage. That said, I run my AJ in a dual mono setup with a little more voltage than standard, so I’ve never noticed a big difference in power between it and the A30 that came before. Either way, F4 and F6 are both great compliments to the Aleph
 
That’s a fair point. I had an Aleph 30 before the J, and it does fair better into heavier loads. Extra output pair and a little more voltage. That said, I run my AJ in a dual mono setup with a little more voltage than standard, so I’ve never noticed a big difference in power between it and the A30 that came before. Either way, F4 and F6 are both great compliments to the Aleph


For your taste, which do you prefere? F4 or F6?
 
I’m a big fan of the F6. Both sound fantastic, but I find the F6 to have a little more shimmer in the higher frequencies, which I like. I’ve only listened to the F4 with a BA3 pre, and it’s very possible I’d prefer the F4 if using a different preamp.