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fEARful™ Part Ten (10)

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#341
Robby Hoinsky said:
Question for those with a 15/6 in particular, but any fearful should probably do the trick. I am wondering if my crossovers are performing properly. I've built plenty of crossovers and have checked and rechecked them many times, but the high end (coming from the mid) seems to be overly present.

This is particularly noticeable when playing music through them. Has anyone else had this experience?
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Beyond the stuff I PM'ed you about, are you sure the mid driver polarity is correct?

In any case, I wouldn't expect canned music to sound that great without a tweeter, preferably crossed a lot lower than Duke's design. Still, sounds like something's seriously amiss though.
 
#344
Sundogue said:
There is a lot to the gain stage of that amp, from how you EQ to the use of the Drive control, compression and the pre/post setup.

I usually have the Drive up to maybe 7 or 8, the Active input disengaged (no input cut, even with an active bass) and the Pre Gain on Amp 1 (the control in bridged mode) up quite high. Keeping the compression off (or used judiciously) helps a lot as well. The rest is just using the EQ right to get the response desired. Then the Volume knob adjusted to the volume desired.

The Drive control itself (along with keeping the active cut on the input off even with an active bass) really gives a ton of pre gain to work with. The Drive isn't just to add grit, it sort of acts like a Pre-Gain on it's own. If you keep it too low it does take some of the preamp's output away and it takes a fair amount of Drive Control before it starts getting grindy.
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Thanks Sundogue. Hopefully I can continue to resist GAS, but its likely that by Summer or sooner I'll have another BX1500.
 
#346
Robby Hoinsky said:
Question for those with a 15/6 in particular, but any fearful should probably do the trick. I am wondering if my crossovers are performing properly. I've built plenty of crossovers and have checked and rechecked them many times, but the high end (coming from the mid) seems to be overly present.

This is particularly noticeable when playing music through them. Has anyone else had this experience?

Robby
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Is your mid padded 3db or so?
 
#347
Passinwind said:
Beyond the stuff I PM'ed you about, are you sure the mid driver polarity is correct?

In any case, I wouldn't expect canned music to sound that great without a tweeter, preferably crossed a lot lower then Duke's design. Still, sounds like something's seriously amiss though.
Click to expand...

What should it be crossed over at for canned music? What about using them as PA mains?
 
#349
Passinwind said:
3-3.5K tops, LR 24 both ways. Just IMHO though...:cool:
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It depends. On lots of things. Crossing to a mid in a 3 way box is critical. We hear EVERYTHING in that critical midrange section.
Gboy's crossovers are very good, don't get me wrong.
When you start getting vocals through a cab the game changes.

I'll give you a better opinion when I finish the two cabs I have in production now. See what I think, because what I'll use to test is music and sweeps.
 
#353
The typical approach for playback systems is to measure in the nearfield, on-axis.
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A lot manufacturers do that (PA and hifi). I never optimize loudspeaker on axis, allways off-axis (15 or 30 degrees). On axis you can get a lot of anomalies like baffle diffraction (especially with tweeters crossed over low). If you optimize on axis you'll get a hump in your response off-axis which results in a less then satisfying power response.
Baffle step not only occurs in the near field, it's just that in the far field(in room) you'll get reflected sound that mixes with the nearfield response which in turn creates the in room power response.
I think it's still correct to measure a basscabinet in the nearfield (1 - 2 mtrs), but one should also try to measure the bassresponse(up to 300hz) in a half space situation (cabinet on the floor).
 
#354
Just put the handles on my cab. I'm waiting on the 3015LF, 18 Sound mid, crossover, speakon jacks and plate, grill cloth, corners and rubber feet from speakerhardware.

I highly recommend ordering from speakerhardware. Leland is super to work with and ALWAYS stays in communication with you.

I weighed my cab (just on a nice digital bathroom scale, with me holding it and subtracting my weight). So far, without the speakers or crossover (and some minimal other hardware) it is at 34 lbs.

Today I'll be putting in the 2" thick egg crate foam to line the cab. That should add next to nothing to the overall weight. The speakers will add about 11 lbs. to it, so when it's done it should come in at or under 50 lbs. Not too shabby for how big it is and how big sounding it will be.

I expect delivery of the goods from speakerhardware tomorrow, so that will give me almost 4 days to put everything in, wire it up and mess around with my EQ'ing before my gig this Saturday night. :hyper:

Anything I should be aware of regarding wiring up the crossover (pre-built) to the speakers and speakon jacks? I've never wired up speakons or this crossover before, but they look rather self explanatory. But if anyone has any tips, suggestions or advice on hooking it all up, I'd appreciate a little help with it.
 
#356
Arjank said:
Sundogue, so you dump your 210/6 cabs?

Edit: ah, I just read some of the earlier posts, you're not gonna dump 'm. You might be swappin'the bp102 with 3010lf's (when they come out).
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No way will I dump those cabs. I still have one 210 cab, but I split one up into two 110/6 cabs. They are really small (22 lbs. each) and perfect for small gigs where I want great tone but don't need a lot of volume.

I'm in two bands...a fairly quiet blues band and a classic rock band. The classic rock band has drums, keys and two guitarists with Fender twins. The guitarists are usually pretty good about not being too loud, but sometimes they get a little carried away. I need the fEARful to keep them in check. :D Honestly, I just want a little more beef in the low end on my rock gigs and I'll need the fEARful 15/6 for my rock gigs and larger or outdoor venues.
 
#357
How far has everyone been coming down the back wall of the 15/6 with foam? I want to keep the shelf port clear but not sure where to stop the lining. Above the shelf? How far down will still keep the port clear, yet maximize the lining effect?

EDIT: I love being self employed! I just finished a huge job last week and have this week pretty much free. Perfect timing!!! :D
 
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