| Title: | * * Computer Music, MIDI, and Related Topics * * |
| Notice: | Conference has been write-locked. Use new version. |
| Moderator: | DYPSS1::SCHAFER |
| Created: | Thu Feb 20 1986 |
| Last Modified: | Mon Aug 29 1994 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2852 |
| Total number of notes: | 33157 |
Since I've come into a number of used cabinets in the last month or so, I have a number of questions concerning their repair and maintenance. 1) Is there any way to check out a crossover system without a lot of test equipment? In particular, I'm dealing with what appears to be simply a large capacitor. All I have for test equipment is a cheap multimeter. Is there some way to test it using tones or voltages created by a synthesizer, perhaps? 2) What can go wrong with a speaker when it has demonstrated it sounds lousy? If a driver shows no visible sign of cone damage, can it be in the magnet or the winding? How does one pinpoint the area needing attention? Again, assume minimal test equipment. 3) I just found out last night that, contrary to what I had thought before, Pyle drivers are a BRAND of speakers, not a type. Yet I've often heard people throw around the name. Is 'Pyle driver' synonymous with 'the cheapest speaker you can get'? 4) I just bought a replacement diaphragm for an EV DH1506 horn. Is anyone familiar with the model? I paid $65 for the replacement part, which seemed high to me. The dealer told me the horn itself lists for over $250 (which made me feel better, seeing I only paid $20 for the horn WITH a two way cabinet). Was I ripped off on the price of the part? He told me he charges $25 to replace it, but said it was easy enough to do it myself, so I did (instructions came with the diaphragm). Thanks for any help. Dan
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 859.1 | Did you mean PILE drivers? | PIXEL::COHEN | Richard Cohen | Thu Jul 09 1987 15:21 | 5 |
Pyle drivers are not the cheapest, but they do provide good value
for the money.
- Rick
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| 859.2 | Answers... | KRYPTN::JASNIEWSKI | Thu Jul 09 1987 15:21 | 34 | |
1) Sure, you'd have to drive your speaker with an amp connected
to the synth. You'd want to set the synth to produce a steady tone
and would probably want the VCF *out* of the signal path, use a
sine waveform if possible.
Check that your meter reads a constant voltage over the frequency range
of interest, that's thru the amp, so it's tone controls will have
to be adjusted "flat".
Now measure the voltage across the Horn speaker. It should start
going down below 500 cycles (A=440, etc.) for a big horn (dimensions
in feet) below 3-4 Khz for a smaller horn and below 10 Khz for
a "tweeter"...
Likewise, the voltage across the Bass speaker will remain steady
up to these values and then should start going down for frequencies
*above*...
If the crossover follows these basic responses, it's "working"
2. A speaker can be blown without apparent damage. Voice coils warp,
then rub against the magnet, making this "scratchy" sound...
3. Pyle Driver is a hoky brand name for speakers made by Pyle
industries. They *look* OK, but, as I've heard before, if you're
serious, go for the *real* brands like "JBL" or "EV" or "Gauss"
or "Celestion". Might pay $200 a speaker, though...
4. That's a fair price - he probably only made $30 off ya :'#...
Ya can only get widgets at the widget store...wish I could get into
the Concord auto auction too, but, *I'm* not a dealer! As you get
to know more you may find other options; for example, I wouldnt
buy 6L6 output tubes at "Daddy's" for $29.95 each...
Joe Jas
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| 859.3 | since this is the speaker note... | EZ2GET::STEWART | No, I mean Real Music. | Mon Jun 17 1991 15:05 | 10 |
I'm looking for recommendations on small cabinets I can use for
everything: synth, guitar, & some bass. They've gotta have a real
solid bottom end (so we're talking 15" driver, right?). I don't want
to bi-amp, yet. This is for a small 100wt/chan. practice/jam rack.
I'm purposely not setting a price limit, 'cause I can find almost
anything in the recycler here. I like JBLs, but EV is cool, too. What
about TOA? Do they have anything that'll handle bass?
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| 859.4 | TOA 380-SE | PROSE::DIORIO | A beer's eye view | Mon Jun 17 1991 15:09 | 6 |
RE -1 I have a TOA 380-SE. It's great. 3-way. 15-in woofer. Bi-ampable and tri-ampable. Used they go around $300. Mike D | |||||