[PStamler]

On Apr 11, 3:53*pm, "William Sommerwerck"
wrote:
All that said, one still needs to use one's ears. Despite the
"official" numbers, I find that (for example) *turnover frequencies of
50Hz, 500Hz and 3180Hz sound excellent on many electrical US
Columbias. The extra octave of bass boost and the extra extension
of treble response may be compensating for losses in the system --
whatever, they sound good to my ears.

With a playback pole at 50Hz, there will 6dB /less/ overall boost during
playback than with a 100Hz pole. I think.

Depends how you look at it. *Relative to 1kHz*, bass boost starting at
500Hz and continuing +6dB/octave as you move downward will produce
more level in the 50-100Hz octave when the lower pole frequency is
50Hz than when it's 100Hz. Draw the picture, but draw it referencing
1kHz.

With a passive circuit a 50Hz turnover will give more loss from 50Hz
on up than a 100Hz turnover, but since that also includes the ref.
frequency of 1kHz, it's not relevant. Ref. 1kHz, a 50Hz turnover
boosts the bass more than a 100Hz turnover.

Peace,
Paul