If You Were A Swine Looking To Choose Between 3 Preamps...


Looking to make a choice for a pre to use with an H2O audio 250 Signature amp I recently acquired. The amp sounds lovely running off the tube stage of a Musical Fidelity NuVista integrated. On a lark I boght an Edge SI 1M pre amp to try with it. If this combo doesnt work out, then it gets paired with a First Watt F7 I have.

In that case I need to look at a different pre, and may go tube as the Nuvistor internals on the MF work well with this amp.

Being a pig of limited means I have looked at the used market and came up with 3 interesting choices.

Allnic L3000 MK II

Line Magnetic 512 CA( Japanese voltage)

Triode Corp Trv 4se

Any one of these have to be bought un-auditioned, as two are coming from Canada, one from New York.

Anyone have any insights of the 3 candidates?


neonknight
    I haven't heard the three preamps you're looking at,however they all seem to come from very good manufacturers. The only thing that would make me shy away from the LM pre is having to use a step up transformer, but that's me. Best of luck with the search!
Save your money and continue to use the pre outs of the Musical Fidelity. That's an excellent sounding and built unit! Anything else is just a side-wise move!
Buy the Allnic. Nothing that is mentioned here even comes close if you want a flexible, well constructed piece of equipment. It produces a very
smooth and detailed sound with a large 3D sound stage. 

I have an Edge signature 1.1 se and it's  a fantastic pre. Also have an Allnic L3000 tube pre that I switch in an out. Both are top quality 
Preamp. Best wishes
Your amp has a very low specified input impedance of 8,000 ohms. Many tube-based preamps will not be able to drive such a low impedance with good results. I would expect that to certainly be the case with the TRV 4SE, which has a specified output impedance of 7,000 ohms, that might be even higher at some frequencies!

The Allnic would be fine in terms of impedance compatibility with the amp. Although you would want to verify that its relatively low input impedance (10K/20K unbalanced/balanced) would be a suitable load for your source component(s), especially if they are tube-based.

I couldn’t find an output impedance spec or measurement for the Line Magnetic, but I would have my doubts about how well it can drive 8K.

Good luck. Regards,
--Al