Page 2 of 3 < 1 2 3 >
You need to be logged in to post on the forum
Topic Options
Index
#167279 - 08/01/12 04:19 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Rachael]
ROG Offline
Veteran

Registered: 12/12/11
Posts: 2436
Loc: York, England
Electrical and electronic components are under the most stress at switch-on, so continually powering up and down isn't the best idea. You've possibly noticed how light bulbs only fail when you switch on the lamp.

Many studios leave everything on 24/7 whether it's being used, or not. Personally, I'd switch off at night, or when leaving the house, just as a fire risk.

ROG.

Top
#167280 - 08/01/12 04:30 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Rachael]
Ryszard Offline
Veteran

Registered: 09/28/07
Posts: 3878
Loc: Kennesaw (Atlanta) GA
Quote:

I've been reading up on Mac's suggestions and am leaning towards the QSC - made in USA and has 6 year warranty. The Crown would be my next choice.




I'd go with the Crown. They are considered bulletproof. You will get any number of testimonials from other users here. I have used them professionally in live sound and in clubs. You just can't go wrong. They used to have a lifetime warranty; don't know whether that's still so.

On the other hand, I had endless problems with the one QSC amp I owned. I'm sure that in general they are much better than that, but given a choice between Crown and almost anything else, well, I don't actually see a choice.

Quote:

Another question...

My 'old' amp had an auto sensing which would turn the amp on when a signal is received. After a few minutes of no signal, it would shut off. This is important because the amp is not in an easily accessed area. Neither the QSC or Crown have this ability. I assume that leaving the amp on continually is not a good idea?

Does anyone know of audio signal sensor that would automatically turn power on/off to the amp? No, the Clapper won't cut it!

Thanks




A very few high-end amps and powered speakers have this feature. I have never seen it available as an accessory. Guess you're gonna have to do the ol' switchie thing!

R.
_________________________
"My primary musical instrument is the personal computer."

Top
#167281 - 08/01/12 07:14 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Ryszard]
Pat Marr Offline
Veteran

Registered: 10/25/08
Posts: 7457
Loc: Winston-Salem, NC
there are power strips available that have master-slave outputs, and the slave outputs only become active when whatever is plugged into the master outlet is turned on. My son just bought a couple of them for exactly the same reason as yours, Rachel. He has music equipment that he uses at the same time, and only one of the items has an ON switch that is conveniently located. So he plugged that device into the MASTER outlet, and all the other stuff into the SLAVE outlets.

He keeps the switches turned on all the time for the slave devices, so they can be active when their outlets are active. Then, by turning on only the master device, everything comes on and stays on until the master device is turned off.

For equipment that is all used at the same time, and is located close enough to share the same power strip, it's a pretty neat solution.

They cost about $20-$30. I'll ask where he bought it and post that info later

Top
#167282 - 08/01/12 07:28 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Pat Marr]
Ryszard Offline
Veteran

Registered: 09/28/07
Posts: 3878
Loc: Kennesaw (Atlanta) GA
Pat and Rachael,

Given that these things exist, there's something you have to be careful of. Some quality audio gear has a power-on delay circuit intended to avoid the transient "thump" on power up which can damage speakers and ears. Bypassing the onboard power switch also bypasses this safety feaure. I'd like a remote switch for my powered monitors, but I'd be afraid to use it. Unfortunate, but I'll stick with the inconvenient* device switches for that one.

FYI,

R.

*I have to take two steps from side to side. What a drag.
_________________________
"My primary musical instrument is the personal computer."

Top
#167283 - 08/01/12 07:54 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Ryszard]
Pat Marr Offline
Veteran

Registered: 10/25/08
Posts: 7457
Loc: Winston-Salem, NC
You speak of bypassing the switch...

I'm not talking about a short circuit in which some part of the wiring is skipped.

In a device that is always plugged in, power waits at the switch until it gets turned on. The switch itself is just an on-off gate. Once the gate is open, power proceeds to the circuitry and whatever features are built into the electronics do their thing.

Seems to me that this feature would not be a function of the switch, so leaving it in an ON position wouldn't change the flow of electricity at all. Any buffering would still be there, happening after the power got past the switch.

And even if it IS built into the switch... the power will still pass through the switch, so... what changed?

Top
#167284 - 08/01/12 08:14 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Pat Marr]
Ryszard Offline
Veteran

Registered: 09/28/07
Posts: 3878
Loc: Kennesaw (Atlanta) GA
What we have here is failure to cmyoonicate. I know what I'm saying is true but can't explain it any better at the moment (working). I'll come back to it, or maybe someone can clarify it before then.
_________________________
"My primary musical instrument is the personal computer."

Top
#167285 - 08/01/12 08:32 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Ryszard]
Ryszard Offline
Veteran

Registered: 09/28/07
Posts: 3878
Loc: Kennesaw (Atlanta) GA
Okay, I'm on break. Let me try again.

When you turn on a power switch it is considered "energized." Doing this from our notional amplifier's switch starts a timer connected to a relay which suppresses audio output until the power-on transient has passed. This is a one-shot device. The delay won't happen again until you cycle the unit's onboard power switch again, i.e., turn it off and back on.

Therefore, if the switch is left on while the device is powered down, when you reintroduce power you will get an inrush transient as the device powers up, but with no delay as the relay has already been triggered. Therefore the transient will be passed to the speakers if they are on. Megathump to the max. Bad. Krunk says not do.

Is mo' bettah?
_________________________
"My primary musical instrument is the personal computer."

Top
#167286 - 08/01/12 09:37 AM [Off-Topic] Re: Stereo amplifier recommendation [Re: Pat Marr]
rockstar_not Offline
Veteran

Registered: 01/14/02
Posts: 7240
Loc: Colorado Springs, CO, USA
You can buy a rack-mounted power distro that is designed to delay the power to the outlets for amps. Used it for years in a built-in rack at the listening room at GM, but can't remember the name of the brand!

IMO, every amp rack in a PA system should have one of these boys.

-Scott

Top
#167287 - 08/01/12 01:26 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: rockstar_not]
Pat Marr Offline
Veteran

Registered: 10/25/08
Posts: 7457
Loc: Winston-Salem, NC
here's a link to the strip I was talking about for anybody whose devices don't have the feature Richard is talking about:

http://1000bulbs.com/product/56488/TCP-L...=www.become.com

a similar device:
http://www.brookstone.com/smart-strip-automatic-power-controller



Top
#167288 - 08/01/12 01:46 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: Pat Marr]
Ryszard Offline
Veteran

Registered: 09/28/07
Posts: 3878
Loc: Kennesaw (Atlanta) GA
I especially like the "ergonomic design." Whaddya, gonna sit on it?
_________________________
"My primary musical instrument is the personal computer."

Top
#167289 - 08/01/12 02:34 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: Ryszard]
Pat Marr Offline
Veteran

Registered: 10/25/08
Posts: 7457
Loc: Winston-Salem, NC
Quote:

I especially like the "ergonomic design." Whaddya, gonna sit on it?



Why oh WHY did you plant that visual in my mind??

(erase, erase...)

Top
#167290 - 08/01/12 04:11 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: Rachael]
Mac Offline
Veteran

Registered: 05/29/00
Posts: 38502
Loc: Chesapeake, Virginia USA
Quote:

I've been reading up on Mac's suggestions and am leaning towards the QSC - made in USA and has 6 year warranty. The Crown would be my next choice.

Another question...

My 'old' amp had an auto sensing which would turn the amp on when a signal is received. After a few minutes of no signal, it would shut off. This is important because the amp is not in an easily accessed area. Neither the QSC or Crown have this ability. I assume that leaving the amp on continually is not a good idea?

Does anyone know of audio signal sensor that would automatically turn power on/off to the amp? No, the Clapper won't cut it!

Thanks




For the record, my own personal choice would be for the QSC over the Crown. Just so you know.

What are you using for preamp? Many audio preamps feature AC connects on the rear, some marked, "Switched" which means that anything plugged in there will switch on and off with the preamp's front panel power switch.

If you don't have that, consider a common plug strip with built in switch, which can be placed closer to you, and plug the amp - and anything else related into that strip, using one switch to power all on and off.

BTW -- the sensing audio power switching stuff is a good way to have to send an amp to the repair technician on a regular basis. You see, the entire amplifier cannot be entirely cur off from the power line with this nifty accessory, leaving a path for transients, spikes and lightning strikes to make it into your amp and take out all sorts of delicate and expe$ive components. I like a physical power cutoff switch, thankyewverrmuch.


--Mac
_________________________
PGmusic FAQs, Tutorials and Updates! click here

You must be Audiominds.
www.audiominds.com

Top
#167291 - 08/02/12 07:23 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: Mac]
Rachael Offline
Expert

Registered: 05/18/07
Posts: 1616
I don't use a preamp. I use a Logitech Duet to stream music from my computer and Pandora. The output from the Duet goes to the amplifier via RCA plugs. Volume and anything else is controlled via the Duet.

The power strip that shuts everything off when the master is powered down looks very interesting. I am not sure it would work for me as the Duet goes into a standby mode which really is not off. However, I am able to turn it off with a few extra steps from a remote. I'll read up on these and see if it would work.

A comment on the audio sensing switch - I suspect this may contributed to the Audiosource to fail twice. I recall several occasions during a storm where the amp switched on/off several times. And during soft music passages, the amp would cycle off/on a number of times.

Despite being connected to a voltage regulator and whole-house surge suppressor, it still managed to die twice in 3 years with sparse usage. Another reason to favor the QSC is the 6 year warranty.

Thanks everyone for the input.

R

Top
#167292 - 08/05/12 06:27 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: Rachael]
jazzmammal Offline
Veteran

Registered: 06/08/05
Posts: 6372
Loc: Redondo Beach, Ca.
Rachael, you're talking about listening to MP3's. You're not listening to CD quality much less audiophile. Read this:

http://help.pandora.com/customer/portal/articles/90985-audio-quality

For that level of audio quality most anything would work fine like Scott's $25 amp from Goodwill. Forget about how great the spec's are for QSC and the like. MP3's are compressed files for pete's sake. If you honestly can't tell or don't care about the difference between listening to a CD quality song in Real Band and that same song compressed to an MP3 at 128K then this whole discussion is academic. Basically anything would be fine as long is it's not humming and crackling.

Bob
_________________________
Win 10 64 bit, Intel 4770, 256 Gig SSD, 16 Gigs Ram, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA1XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.

Top
#167293 - 08/05/12 07:09 PM [Off-Topic] Re: Stereo amplifier recommendation [Re: jazzmammal]
Mac Offline
Veteran

Registered: 05/29/00
Posts: 38502
Loc: Chesapeake, Virginia USA
Maybe her mp3 files are at higher bitrates or possibly even the no-loss Variable Bitrate.

Maybe she also wishes to listen to CDs.

Maybe she also wants hi fidelity to play BiaB, DAW and other sudio as well.


--Mac
_________________________
PGmusic FAQs, Tutorials and Updates! click here

You must be Audiominds.
www.audiominds.com

Top
Page 2 of 3 < 1 2 3 >


PG Music News
Band-in-a-Box® 2018 for Windows Features a Cleaned-up BB Folder

If you've used previous versions of Band-in-a-Box®, you may have noticed a lot of different files and folders within the "BB" folder for the program - after years and years of development there are up to 10,000 files for an UltraPAK! With Version 2018, we've cleaned it up - but you're not losing anything - the cleanup normally happens automatically during installation, but you can run it manually if you'd like - just select the main menu Help | Utilities | Run Cleanup routine...

Review all the new features in Band-in-a-Box® 2018 for Windows at http://www.pgmusic.com/bbwin.new.htm

Introducing... RealTracks Artist Kirk "Jelly Roll" Johnson

One of our just-released RealTracks Sets features the award winning harmonica player Kirk "Jelly Roll" Johnson!
RealTracks Set 283: Jelly-Roll Country Harmonica

Add his harmonica playing to your Band-in-a-Box song for that soulful feel that cannot be matched!

Learn more about "Jelly Roll" Johnson and listen to demos of his RealTracks when you visit his RealTracks Artist Bio page.

Beginners Forum - Exporting from Band-in-a-Box® to a .MID File

Our Forum is amazing - an online community full of helpful program users, BETA testers, endorsers, and staff!

We include a Beginners Forum, which is a great place for Band-in-a-Box beginners to visit for discussions & resources!

This week included a very active post, Exporting from Band-in-a-Box to a .MID file. Visit this post to learn more about exporting RealTracks as .MID files, and see our friendly forum users at work!

Introducing... RealTracks Artist Colin Linden!

Have you heard the newest Guitar RealTracks from Colin Linden? You can find his RealTracks with:
RealTracks Set 279: Americana: Slow Groovin' 12-8 & 16ths
RealTracks Set 280: Americana: Gritty Blues & Rockabilly Swing
RealTracks Set 287: Pop Songwriter: Acoustic Guitar
RealTracks Set 299: Rootsy Blues Guitar & Piano

Learn more about Colin and listen to demos of his RealTracks when you visit his RealTracks Artist Bio.

The Band-in-a-Box® 2018 49-PAK with 40 Unreleased RealTracks!

Our Band-in-a-Box® 2018 49-PAK is still available, and includes 40 UNRELEASED RealTracks, Video RealTracks Set 1: Pop Ballad Band, Video RealTracks Set 2: Country TrainBeat Band, 32 MIDI SuperTracks, 108 Instrumental Studies, Artist Performance Set 8: Traditional Songs Sung by Béatrix Méthé, 40 AmpliTube Presets & 37 Associated Styles, and 52 Loops!

Add this to your Band-in-a-Box® Pro, MegaPAK, or PlusPAK purchase for just $49! Purchasing an UltraPAK or Audiophile Edition? As of January 16th, the 49-PAK is included in your purchase (uncompressed RealTracks files for the Audiophile too)!

Learn more about the 49-PAK and listen to demos at http://www.pgmusic.com/bbwin.49pak.htm

Band-in-a-Box® 2018 For Windows Build 509 Update Available!

Band-in-a-Box® 2018 for Windows customers can download this free patch update at http://www.pgmusic.com/support_windowsupdates.htm#509

Summary of changes:
Added: The drop station has MP3 and WMAL (lossless WMA) quadrants added.
Fixed: "Drag Audio as MP3" setting in the Plugin settings did not work when dragging a file to Windows Explorer.
Fixed: "Pause Play until MIDI or key received" setting did not work if using WAS audio drivers.
Fixed: Band-in-a-Box Server was unable to communicate with BB2018.
Fixed: Choosing a drum kit file in the MIDI/Audio Driver Setup dialog would fail with error "Unable to install patch/drum map for...".
Fixed: Disabling "Include 2 bar lead-in" setting in the Render Song to Audio File dialog would cause videos to be out of sync.
Fixed: It was not possible to type the # sharp character into the chord sheet if using a French keyboard.
Fixed: Some Amplitube TGS files and styles were missing in certain installations.
Fixed: Song would stop playing at bar 8 after rendering to an audio file.
Fixed: The Practice Window songs would not load with error "This directory does not exist...".
Fixed: The Tip of the Day dialog was not displaying any tips.
Fixed: The Tuner, MIDI Monitor, and Drum Kit window were always displaying in English instead of the user's language.

Today is the LAST DAY of our Band-in-a-Box® 2018 for Windows Special!

Our Band-in-a-Box® 2018 for Windows special ends at 11:59 PST TONIGHT!
It's your last chance to order with some amazing upgrade pricing, Bonus PAKs, discounted Xtra Styles PAKs, and Video RealTracks bundles!

Band-in-a-Box® 2018 for Windows purchase options: http://www.pgmusic.com/bbwin.packages.htm

Bonus PAKs information: http://www.pgmusic.com/bbwin.bonuspaks_2018.htm

Video RealTracks offers: http://www.pgmusic.com/bbwin.videorealtracks.htm

Xtra Styles PAKs special pricing: http://www.pgmusic.com/xtrastyles.php?os=win

Forum Stats
26966 Members
49 Forums
49707 Topics
406917 Posts

Max Online: 2434 @ 11/14/17 12:37 AM
Newest Members
michelin, ArneFau, Kare Synnes, DrPersson, kenastill

26966 Registered Users
Top Posters (30 Days)
Noel96 374
Matt Finley 266
VideoTrack 248
MarioD 147
sslechta 128
David Snyder 124
jford 121
furry 119
Scott C 110
Jim Fogle 106
Today's Birthdays
CinKid, DPRyan, operaverdi