4 ohm or 8 ohm tap on old tube amps?


Would one of these provide better sound than the other? I have vintage Marantz and McIntosh but is the answer pretty much true for any tube amp?

Driving ProAc 8 ohm 86db One SC monitors.

Thanks much,
Jim
river251
Hifitime, KT88's post sounds impressive, however, VTL and Manley Labs have always provided only one output on their amplifiers set at approximately 5.5 ohms for the best sound with the majority of speakers.
07-22-12: Rrog
Hifitime, KT88's post sounds impressive, however, VTL and Manley Labs have always provided only one output on their amplifiers set at approximately 5.5 ohms for the best sound with the majority of speakers.

Yes, they did it by choice. However, you can see some significant differences in this test done by Stereophile. It really shows in the power output differences between the 4, and 8 Ohm output power measurements. Without the other impedance taps, we'll never know how it would compare sonically, to its one fixed output.