MY NEW POWERED SUB

[CRAZY K]

So I got my Alto 15 on the road last Friday--having not really tried to fathom out how to drive it.

I was using a Yamaha mixer amp and got some nice results on background ipod but went a bit haywire when using Mini Disc and also the Cortex.

I was driving the sub from the Monitor output of the amp which allows volume and also tone controls.

My question may seem a bit weird--but can you get feedback by standing in front of the Sub using a mike?

Probably not but I just wondered as I made a bit of a mess of adjusting things, I now realise the inputs of microphone, mini disc, iPod and Cortex each have an individual control for monitor volume and as some have different input levels it makes an interesting game!

So I have to carefully monitor the individual levels, however having had a play in my office with it tonight I think I'm getting the hang of it.

Well I have had complaints from the TV room already!

I don't think I'll need much sub on the microphone as the Peavey UL15s punch out good vocals.

On the night once it got really going I turned the sub off to avoid any accidents, with the UL15s no problem.

But I was experimenting tonight and brought the sub in from zero and the low end difference was serious.

I'm looking forward to Saturday using it in a Marquee.

[Nakatomi]

So I got my Alto 15 on the road last Friday--having not really tried to fathom out how to drive it.

I was using a Yamaha mixer amp and got some nice results on background ipod but went a bit haywire when using Mini Disc and also the Cortex.

I was driving the sub from the Monitor output of the amp which allows volume and also tone controls.

My question may seem a bit weird--but can you get feedback by standing in front of the Sub using a mike?

Probably not but I just wondered as I made a bit of a mess of adjusting things, I now realise the inputs of microphone, mini disc, iPod and Cortex each have an individual control for monitor volume and as some have different input levels it makes an interesting game!

So I have to carefully monitor the individual levels, however having had a play in my office with it tonight I think I'm getting the hang of it.

Well I have had complaints from the TV room already!

I don't think I'll need much sub on the microphone as the Peavey UL15s punch out good vocals.

On the night once it got really going I turned the sub off to avoid any accidents, with the UL15s no problem.

But I was experimenting tonight and brought the sub in from zero and the low end difference was serious.

I'm looking forward to Saturday using it in a Marquee.

Feedback resistance of most mics is only really much cop at frequencies where sound is directional. Bass frequencies can produce feedback - stand too close to a sub when there's too much gain (or not enough bass cut) on yer mic channel & it can go WUHHHHHHHHHHHHHHHHHHHHH. Much more pleasant than the usual screechy kind, but still not great.

I thought my Alto 15"s were pretty punchy compared to my Mackies, and then I added a single 15" active sub - now I think the 15"s on their own sound very thin. Wonder what'd happen if I add another bin? :D

[CRAZY K]

Feedback resistance of most mics is only really much cop at frequencies where sound is directional. Bass frequencies can produce feedback - stand too close to a sub when there's too much gain (or not enough bass cut) on yer mic channel & it can go WUHHHHHHHHHHHHHHHHHHHHH. Much more pleasant than the usual screechy kind, but still not great.

I thought my Alto 15"s were pretty punchy compared to my Mackies, and then I added a single 15" active sub - now I think the 15"s on their own sound very thin. Wonder what'd happen if I add another bin? :D

Yes i must have had feedback then--wuuuuuuuhhhh is better than screeching--but not much good for the equipment.:rolleyes:

Get saving Justin and see those beer glasses walking.:D

Weight and size are the only downside--if these things worry you.

Thanks for the info--the answer I think is to turn down the monitor ( sub) volume setting on the microphone channel which I dont need anyway
and see what happens in the Marquee Saturday.

Yee-ha!

[Nakatomi]

Yes i must have had feedback then--wuuuuuuuhhhh is better than screeching--but not much good for the equipment.:rolleyes:

Get saving Justin and see those beer glasses walking.:D

Weight and size are the only downside--if these things worry you.

Thanks for the info--the answer I think is to turn down the monitor ( sub) volume setting on the microphone channel which I dont need anyway
and see what happens in the Marquee Saturday.

Yee-ha!
On the contrary... A bit of sub on a voice can add a nice bit of grunt. I turn my mic bass down enough to prevent feedback and it still sounds lovely (even if I say so myself).

As fir saving... I'll be keeping my eyes open for an identical bin to the one I already have. I forgot to bid on one a few weeks ago but I'm sure another will come along eventually.