Redlining - how bad is it?

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Redlining - how bad is it?
Posted on: 12.04.2013 by Olin Easley
In addition to common sense, I've read multiple times that redlining is generally bad for the sound system and in the best case scenario you'll end up with worse sound quality. However, I keep seeing popular DJs hit the reds and noone does anything about it. Can anyone clarify what the actual effects of redlining are?
Rolanda Clodfelder
18.04.2013
Originally Posted by tekki
I redline like crazy, coz everyone knows redder is faster and better!

Rolanda Clodfelder
19.04.2013
Originally Posted by mdcdesign
Now that IS retro :P

Only downside to the Formula Sound stuff (the FSM and PM ranges anyway) is that there aren't any per-channel VU meters. The PM series has a clipping indicator though which is something at least.
Although If I remember rightly there was a button to switch between Cue and Master on the VU, been a long time since I played on one.

Should you really need to know what the precise gain is via individual VU per channel is for DJ'ing purposes ?

IMHO thats what ears are for. Like you said there is a clip indicator per channel. Thats the only real signal you should need that its running in the rough and it honestly took ALOT to get it to the point of clipping a channel.
Doreen Schurle
18.04.2013
Originally Posted by deevey
PM series ... it was back 15+ years ago. Still probably one of the best sounding mixers out there and being modular it was a dream if any work needed to be done - even powered on you could replace an entire channel.
Now that IS retro :P

Only downside to the Formula Sound stuff (the FSM and PM ranges anyway) is that there aren't any per-channel VU meters. The PM series has a clipping indicator though which is something at least.
Rolanda Clodfelder
18.04.2013
Originally Posted by mdcdesign
Yeah, on their FF series.
PM series ... it was back 15+ years ago. Still probably one of the best sounding mixers out there and being modular it was a dream if any work needed to be done - even powered on you could replace an entire channel.
Doreen Schurle
18.04.2013
Originally Posted by deevey
Formula Sound used Knobs like this with pop off caps...

Yeah, on their FF series.

Very cheeky :P Although still leaves the full range of travel, so at least you're not screwing over people with low-level outputs.
Rolanda Clodfelder
18.04.2013
Originally Posted by makar1
How did you manage this? Did those gain pots have symmetrical shafts?
Formula Sound used Knobs like this with pop off caps...

Qiana Castellucci
18.04.2013
Originally Posted by makar1
Your "dream mixer" has been on the market for 7 years.
Thats what i was believeing. Having a fader for the master rather than a knob seems to be the exception rather than the rule with most quality mixers (Denon, Pioneer, Vestax etc etc).
Alphonso Deitchman
17.04.2013
Originally Posted by deevey
I took off off the gain caps from the house mixer and twirled them forwards so DJ's would be running tracks @ 12 o' clock and believe they were @ 3 o' clock cranking it. None ever Realized this was the case and it kept things much safer.
How did you manage this? Did those gain pots have symmetrical shafts?
Alphonso Deitchman
17.04.2013
Originally Posted by mdcdesign
That's because it's stupidly bloody easy to accidentally hit the master fader when you're aiming for the 4th channel fader. Made that mistake a few times toevening . What I wouldn't give for a house mixer with a master knob.
Your "dream mixer" has been on the market for 7 years.
Debrah Parcels
01.10.2013
What if for example on the djm pioneer mixer only the channel volumes are clipping and the master volume is still very much green ? will this still damage the speakers ?
Dione Haimes
18.04.2013
when you go for a drink/pee, talk a walk through the dancefloor,

my sat evening resident the booth is a mile away from the dancefloor and the bar is at the other side so ive usually got to rely on levels from the mixer and amps (they're in the booth), so earplugs out for a few seconds, walk to the bar, order drink, check its not too loud, earplugs back in. everybodys happy,

then the guy on after me clears the floor by cranking it far too loud >.>
Delila Vandommelen
18.04.2013
I only recently noticed the headphone level knob on Xones goes to 11

Also, silly pun that came to mind by reading another thread - headliner/redliner. (funny because it's true)
Rolanda Clodfelder
18.04.2013
Originally Posted by tekki
I redline like crazy, coz everyone knows redder is faster and better!

Random X
18.04.2013
I redline like crazy, coz everyone knows redder is faster and better!

Alphonso Deitchman
19.04.2013
VU meters help a lot for EQing as well as balancing two tracks. Visual feedback is useful in a noisy environment.
Rolanda Clodfelder
19.04.2013
Originally Posted by mdcdesign
Now that IS retro :P

Only downside to the Formula Sound stuff (the FSM and PM ranges anyway) is that there aren't any per-channel VU meters. The PM series has a clipping indicator though which is something at least.
Although If I remember rightly there was a button to switch between Cue and Master on the VU, been a long time since I played on one.

Should you really need to know what the precise gain is via individual VU per channel is for DJ'ing purposes ?

IMHO thats what ears are for. Like you said there is a clip indicator per channel. Thats the only real signal you should need that its running in the rough and it honestly took ALOT to get it to the point of clipping a channel.
Doreen Schurle
18.04.2013
Originally Posted by deevey
PM series ... it was back 15+ years ago. Still probably one of the best sounding mixers out there and being modular it was a dream if any work needed to be done - even powered on you could replace an entire channel.
Now that IS retro :P

Only downside to the Formula Sound stuff (the FSM and PM ranges anyway) is that there aren't any per-channel VU meters. The PM series has a clipping indicator though which is something at least.
Rolanda Clodfelder
18.04.2013
Originally Posted by mdcdesign
Yeah, on their FF series.
PM series ... it was back 15+ years ago. Still probably one of the best sounding mixers out there and being modular it was a dream if any work needed to be done - even powered on you could replace an entire channel.
Doreen Schurle
18.04.2013
Originally Posted by deevey
Formula Sound used Knobs like this with pop off caps...

Yeah, on their FF series.

Very cheeky :P Although still leaves the full range of travel, so at least you're not screwing over people with low-level outputs.
Rolanda Clodfelder
18.04.2013
Originally Posted by makar1
How did you manage this? Did those gain pots have symmetrical shafts?
Formula Sound used Knobs like this with pop off caps...

Qiana Castellucci
18.04.2013
Originally Posted by makar1
Your "dream mixer" has been on the market for 7 years.
Thats what i was believeing. Having a fader for the master rather than a knob seems to be the exception rather than the rule with most quality mixers (Denon, Pioneer, Vestax etc etc).
Alphonso Deitchman
17.04.2013
Originally Posted by deevey
I took off off the gain caps from the house mixer and twirled them forwards so DJ's would be running tracks @ 12 o' clock and believe they were @ 3 o' clock cranking it. None ever Realized this was the case and it kept things much safer.
How did you manage this? Did those gain pots have symmetrical shafts?
Latoria Kavulich
17.04.2013
sneaky!
Rolanda Clodfelder
17.04.2013
I took off off the gain caps from the house mixer and twirled them forwards so DJ's would be running tracks @ 12 o' clock and believe they were @ 3 o' clock cranking it. None ever Realized this was the case and it kept things much safer.
Alphonso Deitchman
17.04.2013
Originally Posted by mdcdesign
That's because it's stupidly bloody easy to accidentally hit the master fader when you're aiming for the 4th channel fader. Made that mistake a few times toevening . What I wouldn't give for a house mixer with a master knob.
Your "dream mixer" has been on the market for 7 years.
Latoria Kavulich
17.04.2013
it also has a master gain screw on the back panel that can be adjusted. old school styles, on my mixer you can change all that in the utility.
Doreen Schurle
17.04.2013
Originally Posted by Jester
On our DJM600 we have drunk resistant clear tape across the master fader at about 3/4 volume.
That's because it's stupidly bloody easy to accidentally hit the master fader when you're aiming for the 4th channel fader. Made that mistake a few times toevening . What I wouldn't give for a house mixer with a master knob.
Latoria Kavulich
17.04.2013
On our DJM600 we have drunk resistant clear tape across the master fader at about 3/4 volume.
Rolanda Clodfelder
17.04.2013
In honestly have and probably will again redline mixers, not a constant red line mind you, but flashing into the red.

Example: In a regular Saturday evening residency I had the Bar Manager refused to turn the Amp up, leaving me with no option but to turn my mixer up to red-red-red levels by the end of the evening . The claim was that "Other Dj's use it like that" ..... the other DJ's also drove the crap out of the mixer which I did not want to do. Although I managed to get the message through after a few weeks by just refusing to turn the mixer past yellow when the owner walked in and cranked the amps up

Never had the problem again.

A simple gesture to the engineer on duty (if there is one) to let him know that you'll bring it down if he brings it up normally does the trick.

Another residency I had running for short bursts into the red @ peak times on the master was the accepted norm although it was a formula sound mixer and Turbosound rig, it NEVER ever sounded bad except ONCE !

A particularly big Techno DJ decided he knew best and:

A) Clipped all input channels and ran out of Channel Gain for mixing properly
B) Blew the DJ monitor in my ear - thank christ I was wearing plugs that evening !
C) Blew the DJ monitor Amp. Thankfully I was able to pull the amp volumes down before damage was done to the main rig.

The largest Crown XLS series is rated at 1550w when bridged at 8ohms. Off the top of my head
Check the Macro-tech & I-tech series

Maybe Reloops 1500w amps are the size of washing machines ?
That was a gentle dig at MDC
Meg Reinoehl
17.04.2013
Originally Posted by KS2
Been there. What are you meant to do when it's set up like that when you jump on?
TBH, I have no idea. I always face the personal dilemma that mentioned previously.

Originally Posted by Shishdisma
Brake/backspin, talk a little bit, and reset the floor. The dance floor shuffling around/cooling off a bit for a minute isn't going to ruin anyone's evening if it's done smoothly.
Originally Posted by hellnegative
This. Take the time to build hype within the crowd. A couple minutes of downtime for people to go grab drinks is not gonna cause any complaints.
Agree with both of the above points, but I, personally, wouldn't attempt that without having the sound engineer with me to re-adjust the levels once the music starts back up. Depending on how loud it was, healthy levels on the mixer could be too low for the club and that should be compensated for as well.
Nancey Inderlied
17.04.2013
Originally Posted by deevey

Why ? Maybe Reloops 1500w amps are the size of washing machines ?

There are tons on 1500w amplifiers on the market that are a standard 19' 2U size that can push out that kind of power. Crown & Behringer to name just two readily available "real" 1500w (@8ohm) off the top of my head.

However the majority of "1500" Watts Per channel amps are rated @ 4ohms, and 600W into 8 ohm boxes.


Originally Posted by Sample Seven
Class D architecture is a beautiful thing. Crown's XLS series make 1500W+, weigh less than 10lbs and fit in 2 rack spaces
Oh look, people still believe the number on the spec sheet represents actual RMS power. The largest Crown XLS series is rated at 1550w when bridged at 8ohms. Off the top of my head, I'd estimate that actually levels at around ~900-1000 RMS, and that's probably just me putting too much faith in JBL. The Behringer and Reloop offerings are a joke, and wouldn't level anywhere near that.
Julius Schoenhofer
17.04.2013
Originally Posted by mdcdesign
Well for starters, I highly doubt you're pushing 1500w per speaker... your amp would be the size of a washing machine.
Class D architecture is a beautiful thing. Crown's XLS series make 1500W+, weigh less than 10lbs and fit in 2 rack spaces
Rolanda Clodfelder
16.04.2013
Some Amps show clipping on the input rather than output

Well for starters, I highly doubt you're pushing 1500w per speaker... your amp would be the size of a washing machine.
Why ? Maybe Reloops 1500w amps are the size of washing machines ?

There are tons on 1500w amplifiers on the market that are a standard 19' 2U size that can push out that kind of power. Crown & Behringer to name just two readily available "real" 1500w (@8ohm) off the top of my head.

However the majority of "1500" Watts Per channel amps are rated @ 4ohms, and 600W into 8 ohm boxes.
Lannie Kutay
16.04.2013
@Mcdesign Thank you sir for your answer. I will do some investigation
Alphonso Deitchman
16.04.2013
If you're sure the speakers can take much more volume it sounds like you need a more powerful amp. What are your amp+speaker specs?
Doreen Schurle
16.04.2013
Originally Posted by 031999
So let me try to sum up a few things for my own education. Please correct me if I'm wrong. I've played clubs and parties for a few years now, but never on my own system. Well I just started doing mobiles, I have two double 15" + tweeter cabs. Sending 1500w apiece, speakers are rated properly and the amp is matched. So last week I did a gig with 200 people my amps were at about level 7 and my mixer was certainly not clipping but was definitely really loud. But the amp was clipping like a mofo, showing me red on the limiter and sounding like shit. Now I'm sure that system should be plenty for that crowd, but it felt like I had to start maxing stuff out to be heard. Should I have taken my amp to the max? Turned down my mixer a bit, get a bigger system?? Haha idk
Well for starters, I highly doubt you're pushing 1500w per speaker... your amp would be the size of a washing machine. Sounds like you've bought your gear based on PMPO ratings rather than RMS. I'm guessing your amp just isn't powerful enough; if your mixer's master output isn't clipping, then the input on your amp won't be either. It depends on whether or not the amp's clipping detection is based on its output stage or its input one; if it's the former, then having a different load (8 ohms vs 4 ohms, for example) can introduce clipping at less than full volume.

But regardless of all of that, if your gear isn't going loud enough without distortion, it's time to upgrade
Lannie Kutay
16.04.2013
So let me try to sum up a few things for my own education. Please correct me if I'm wrong. I've played clubs and parties for a few years now, but never on my own system. Well I just started doing mobiles, I have two double 15" + tweeter cabs. Sending 1500w apiece, speakers are rated properly and the amp is matched. So last week I did a gig with 200 people my amps were at about level 7 and my mixer was certainly not clipping but was definitely really loud. But the amp was clipping like a mofo, showing me red on the limiter and sounding like shit. Now I'm sure that system should be plenty for that crowd, but it felt like I had to start maxing stuff out to be heard. Should I have taken my amp to the max? Turned down my mixer a bit, get a bigger system?? Haha idk
Doreen Schurle
16.04.2013
Originally Posted by thepanache
The club amp should be doing the work, not the mixer.

Stepping into the booth after another DJ and dropping the volume really kills the vibe.

I play a regular set bi-weekly in a bar/club and have to blast the levels high into the red, gain at 3'o clock and full master.. Just because they refuse to adjust the amp. Apparently it's limited by the council?!

I don't know if the council thing is true but never the less.. Sound quality should always be top of the list of priorities and especially with smaller clubs/bars/venues without sound engineers, the management need to really step up and understand how good sound management really effects the venue..

A bad rig/set-up can be extremely off putting for punters and DJ's alike.
If a venue isn't going to take an active role in the sound side of things, then what they need to do is set the amp at the loudest possible volume (with the mixer on full-whack) to both a) avoid clipping, and b) avoid damage to the speakers. Then - as the DJ - when doing your soundcheck you take cues from the management as to the desired volume. They can always indicate "higher" or "lower" during the evening , which you can then adjust YOURSELF on the mixer - all without any "forced" clipping to attain the required volume.
Alphonso Deitchman
16.04.2013
If it's a modern digital mixer it could easily still be well within headroom depending on the settings. It could be their way of reducing the risk of damage to the system without having to rely on a brick-wall limiter when someone turns up the gains too high.

The amps don't do more or less "work" if you use a loud or quiet signal (at the same output volume). The volume dial on the amp simply attenuates the input signal.
Syreeta Piela
16.04.2013
The club amp should be doing the work, not the mixer.

Stepping into the booth after another DJ and dropping the volume really kills the vibe.

I play a regular set bi-weekly in a bar/club and have to blast the levels high into the red, gain at 3'o clock and full master.. Just because they refuse to adjust the amp. Apparently it's limited by the council?!

I don't know if the council thing is true but never the less.. Sound quality should always be top of the list of priorities and especially with smaller clubs/bars/venues without sound engineers, the management need to really step up and understand how good sound management really effects the venue..

A bad rig/set-up can be extremely off putting for punters and DJ's alike.

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