Members wheresgrant3 Posted February 27, 2005 Members Share Posted February 27, 2005 In our practice space we set up a mini PA. We have a Mackie 808 running two old Peavey 12" mains (150 watts RMS) and two 15" no name sub cabinets (not sure what wattage) through which we put through keys, vocals, bass and guitar (through a POD). The Mackie supposedly has a built in crossover, yet it seems the bass is overpowering everything and distorting the keys vocals & guitar. Bass notes are constantly farting out the rest of the mix. I know the 808 boasts about 1200 watts of 'bridged' power, but the output is probably far less. Still it should be enough to run a pair of mains, some 15" sub cabinets, and one monitor wedge for practice? Link to comment Share on other sites More sharing options...
Members agedhorse Posted February 27, 2005 Members Share Posted February 27, 2005 You won't be able to run mains, subs and a monitor in bridged mode! How are you runjing it currently. You may be just overpoowering the speakers you have. Don't boost any low freq eq (graphic OR channel) and see if the problem goes away? Link to comment Share on other sites More sharing options...
Members tremendo Posted February 27, 2005 Members Share Posted February 27, 2005 The Mackie supposedly has a built-in crossover? Where did you hear that? That being said, you might be able to get by setting it for mains and monitors, and letting one of the amps run the mainds and the other run the subs. Although, the Mackie 808 amps don't like to push low frequencies too much. Link to comment Share on other sites More sharing options...
Members Scodiddly Posted February 27, 2005 Members Share Posted February 27, 2005 The 808 might claim that much wattage, but in the real world it just ain't gonna happen. From my own experience with an 808 and bass guitar, I'd expect coffeehouse volumes but not anything louder. Link to comment Share on other sites More sharing options...
Members Singin' Dave Posted February 28, 2005 Members Share Posted February 28, 2005 I use a Mackie 808m and run two 12" mains from amp 1 and two 12" monitors from amp 2 with decent results. We also run one Yorky ls700p sub via a small crossover and the mixer out/amp 1 input which allows us to take the bass frequencies out of the mains, clearing them up for thier mid/high duty. We don't use this set up for much more than 75 people rooms, as most larger rooms here in Chicago have nice in-house PAs. For practice, I would think that you should just be running vocals through the Peavey's. Maybe their just old, inefficent speakers. You shouldn't need the 15" subs unless your bass player is running a tiny bass amp and your drummer insists on micing the kick (lower volume = better practices!). So I would recommend you run your two Peaveys through amp 1, a monitor or two through amp 2, and leave the subs for gigs. If you do want to run the subs then buy a separate amp and a cross-over (we use a $70 crossover by Rolls called the "Tiny Cross-Over), run a 1/4" out of your "Mixer out" jack to the input fo the cross over, anothe 1/4" from the high output of the crossover back into "amp 1 input" of the Mackie (if it's a newer model it will automatically feed just the highs back into the Mackie amp 1) and run the low output from the cross over into your separate amp which is connected to your subs. This would be about a $400 fix I would guess. OR...just bag the subs for practice and play at lower volumes... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.