Thank you both for your helpful responses. I really appreciate your time and effort. Al, your post allowed to me find answers without chasing my tail so much, and it may prevent me from damaging my preamp.
This topic is of little to no interest on audiogon, but I'll report what I found anyways. Yes, biamping using those outputs is done. They are not independently buffered. Thankfully the L2, which is very close to the same as L1, has been measured by Stereophile. The unbalanced output impedance ranges from 124ohms to 3.35kOhms (at 20Hz); balanced 248 to 7.7k. Lamm does state that its "high current drive capability" with drive any "real world" load. The downside is that the preamp's phase switch only affects the unbalanced output. The other thing I thought interesting is that one can biamp Lamm ML2.# amps by using the one of balanced/unbalanced inputs as an output to another amp.
Thank you, again.
This topic is of little to no interest on audiogon, but I'll report what I found anyways. Yes, biamping using those outputs is done. They are not independently buffered. Thankfully the L2, which is very close to the same as L1, has been measured by Stereophile. The unbalanced output impedance ranges from 124ohms to 3.35kOhms (at 20Hz); balanced 248 to 7.7k. Lamm does state that its "high current drive capability" with drive any "real world" load. The downside is that the preamp's phase switch only affects the unbalanced output. The other thing I thought interesting is that one can biamp Lamm ML2.# amps by using the one of balanced/unbalanced inputs as an output to another amp.
Thank you, again.