PRV D250ph - a few graphs

[karlson3]

for whatever reason, it seemed to want to crossthread on  my 511B/adapter and a large Gollehon horn - but I got a few traces on a small Gollehon radial horn, Klipsch K700, and Pyle PH612 waveguide.   

 

there's no baffle - just the lower edge of each horn sitting on top of a little K12 Karlson cabinet.

 

K700 horn - on axis - 15uF highpass 6th octave   Selenium D250 Trio vs PRV D250ph - the Trio is very strong but probably limited to ~2K5 - 3K crossovers - its distortion is very low at 400Hz on a 511B

 

PRV D250ph  on axis - 15uF highpass 6th octave  Klipsch K700 vs Pyle PH612 - I forgot to identify the horns - the Green trace is K700.

 

PRV D250ph 15uF 6th octave  Klipsch K700 vs Pyle PH612 vs Gollehon radial horn

 

[Honeybadger]

That looks about right, I crossed my around 3k.

 

HB

[karlson3]

Hi HB - what are you using for woofer and tweeter?  What does your crossover look like ? What horn are you using with the PRV? - I cannot get it to thread onto my bolt - 1 3/8" adapters and it won't screw to my larger Gollehon horn - it does thread down ok on my K700

[Honeybadger]

Crossovers is a modified ALK Universal, mid horn is an Elliptitrac 400 with a prv adapter, tweeter is an Eminence APT-50

[karlson3]

that should be great - is your bottom a La Scala ?  I have Bruce Edgar's old 250 horns from ~1990 - but those had 2.5"x2.5" throat for JBL LE5 - they were used first on top of my old set of Khorns - then with his 100Hz straight horns using JBL2220H.

[Honeybadger]

I have a bass reflex cab with an Eminence 15C Similar to Cornwall.