Fertin project - calling all open baffle experts

[dice45]

Peter,
wow, took a long time to follow my invitation. Welcome!

The man behind BlackForest Audio is Volker Kühn, former head of audioplan. He is the distributor for Germany and i bought my Fertins from him.

woofer open baffle: please look at the pixes i posted. Yes, open baffle similar to Linkwitz. After having heard preliminary open baffle woofers, i would not dream ofcombining anything else with the Fertin open baffle.

Heck, Linkwitz, any idea how to manoever him to joining our forum?

Amp: i predict the 45 PP makes it. The Fertin loves a good PP in open baffle mode, i prefer it to SET amps. I have Manfred Huber's 46 PP driving the Fertins.

[reverendclark]

Bernhard,

I actually signed up in February, but was busy getting a review turntable out the door, etc., etc., and one thing leads to another. Now I'm looking to find new ways to spend money on audio, other than just making 'tables.

Do I understand that you are bi-amping the speakers? In your estimation, can my puny 2 watts carry the freight if I do a passive series cross between the woofer(s) and the Fertins? at about 100Hz? I don't have a problem with 2 watts and the 16" Fane/TADs crossed at 1k8, BTW.

Is there any reason to be talking to BlackForest rather than Fertin?

Peter C

[bbaker6212]

Originally posted by dice45
Peter,
Amp: i predict the 45 PP makes it. The Fertin loves a good PP in open baffle mode, i prefer it to SET amps. I have Manfred Huber's 46 PP driving the Fertins.

Why do you prefer PP to SET with the Fertins?
What is better about the sound in your opinion?
The extra power/headroom for better bass?
If so, can't a 300B SET give you similarly enough power?

Also, (appoligize if I already asked this) - have you heard
the Phy-HP KM30 and how would you compare the sound
to your Fertins?

thanks, -Brad-

[reverendclark]

My experience is that the 45 P-Ps have more meat in the lower registers, presence if you will, than either a capacitor coupled or direct coupled 45 SET. This might be a plus with an "FR" speaker, with or without a woofer.

Not everyone agrees about the differences between my amps, though. Many have expressed a preference (that I don't necessarily share) for the direct coupled Loftin-Whites on the the same set up. The Loftin-Whites have a certain finesse that can't be ignored, though, and I do run them with Cunningham globes rather than the Silvertone 45 STs that the P-Ps seem to prefer.

YMMV.

Peter C

[bcherry]

Originally posted by reverendclark
My experience is that the 45 P-Ps have more meat in the lower registers, presence if you will, than either a capacitor coupled or direct coupled 45 SET. This might be a plus with an "FR" speaker, with or without a woofer.
Peter C

Thanks for that insight because now that you mention it, there does seem to be something synergistic with flea power pp and open baffle. Maybe the midrange is so palpable and the bass on the light side that open baffle doesn't need the midrange thickness of SET and does need the extra tautness of pp for the bass?

Brian

[bbaker6212]

What about this open baffle woofer setup for the low end? Maybe you could just put the Fertin in the center where the 4 mids + tweet is. Maybe just two sub drivers per cabinet instead of 4 too.

thoughts?

[reverendclark]

I'm a huge believer in Keeping It Simple, Stupid. My "A" speaks right now are big co-axials with series crossovers. The Fertins won't replace them, they'll go in another room, but I don't want complex. They're too damn hard to tune.

I'm far more likely to do Bernhard's suggestion in his drawings from a few days ago, referring to the Great Linkwitz for Guidance. Best of all worlds, I'd like to not use a woofer at all, but that's not likely to provide the best performance. The 16" Fanes I'm using now have meaningful output at 20 Hz, reflex loaded into 7.5 cuft. I'd sure hate to give that up. Sounds like the plan would be to use Bernhard's setup with a pair of 4 ohm 100dB woofers in series to get them to match dBs and do a series crossover.

Peter C

[mgreene]

I, no doubt like many others, have been lurking on this thread for a while.

Does it sound like a good idea to try to set up a Fertin 8" group buy, hopefully for a reasonable discount?

Mike

[reverendclark]

Works for me. Let's have a show of hands. I'm in for two 20EXs, and ASAP. Maybe Bernhard could set something up through BlackForest, or go direct.

Peter C

[Peter Daniel]

I might be interested too.