Lowther PM6A xFonken?

[jdrouin]

Would the Lowther PM6A, 15 ohm silver (Qts .381), be a candidate for a trapezoidal Onken style enclosure?

[planet10]

I am surprised, but yes, given those numbers it will get in the high 50s F6/low 50s F10 in 35 litres — i already have a 35 litre trapezoid for the A12pw & FF225wk that could be adapted.

It won’t deal with the rising on axis response, but Martin’s measures suggest that flattens out off axis.

dave

dave

[jdrouin]

Thanks. Interesting. I would've thought a driver that large would go lower.

I made a pair of Martin King MLTLs for someone else's Lowther DX4 back in May, and was so impressed with the build quality of those drivers that it made me curious to hear them (haven't gotten the chance yet). And I've loved the Alnico drivers I've heard in vintage systems, so PM6A seems like a natural choice (plus its frequency response is the flattest of the entire product range).

[planet10]

Originally Posted by jdrouin

Thanks. Interesting. I would've thought a driver that large would go lower.

There are so many variables besides size it iis almost immaterial. The FE206eN in the sam e kind of alignment doesn’t make 100 Hz.

dave

[jdrouin]

Originally Posted by planet10

There are so many variables besides size it iis almost immaterial. The FE206eN in the sam e kind of alignment doesn’t make 100 Hz.

dave

Interesting. Would something like a Pensil enclosure or MLTL allow PM6A to go lower than a trapezoidal Onken?

[planet10]

It might. Scott doesthe TLs.

dave