Octave V70SE to drive Martin Logan Summits?


My search for a good integrated tube amp continues. Woudl like to know if any has good success in matching a Octave V70SE integrated amp with the Martin logan Summits? Much appreciate opinions
jonchew38

Showing 2 responses by dob

Your Martin logan Summits is excellent speakers. However, its load at high frequencies probably 5-10 times greated then that at midrange. Thus your requirments for amplifiers must match this challange.
Buyer Be Aware
" Optimum Load Impedance 3 - 16 ohms Nominal Speaker Impedance"

" Impedance mismatch is without consequence, as the amplifier is stable down to a 2 Ohm load."

That means that with loads below 2 Ohms amplifier may (may!) go into oscillations.

I knew a guy who try to use some medium paert amps on his Summit. Every time sound went to treble the amp shut itself off (to avoid oscillation or whatever). He bought Spectron.

" ....the Aeon is a slightly less difficult load (1.3 ohms at 20kHz, instead of 0.7 ohms)."

SLIGHTLY ? To have the same effect amp with 0l7 Ohm @ 20 kHz must deliver almost twice more more power - if load is resistive ...but if its electrastatic its reactive load so power delivery must be substantially more then x2

Regarding 70 wpc and 83 dB efficiency - there are simple relations between this numbers and maximum SPL (in dB...) available, say 10 ft from the speakers. Not only peaks of symphonic music but even drum's transients in jazz are doubful be transmitted without huge degree of distortions (Brrrrr...).
However, you can listen pop, flute concerto and such without a sweat !

Buyer beware !