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Dynamic headroom: I want details


kenratboy

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Actually, I have heard of it, and I know more is better, but what is it? Is it the amps ability to provide power during a transient?

What about numbers? What is a good amount to have?

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Receiver: Sony STR-DE675

CD player: Sony CDP-CX300

Turntable: Technics SL-J3 with Audio-Technica TR485U

Speakers: JBL HLS-610

Subwoofer: JBL 4648A-8

Sub amp: Parts Express 180 watt

Center/surrounds: Teac 3-way bookshelfs

Yes, it sucks, but better to come. KLIPSCH soon! My computer is better than my stereo!

For JBL related subjects and more fun, click: http://www.audioheritage.org

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Dynamic headroom is simply the amount of additional power an amplifier can deliver above its rated continuous power output for a short time. So if an amplifier has a 100 W RMS rating with 3 dB dynamic headroom, it can produce 200 W for a short time.

You don't need any dynamic headroom if your amp if large enough to start with.

I remember Max Headroom...

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A good quality amplifier will have at least 3dB of dynamic headroom.Most however have less,a few have more.And some have so much power they never operate even at half the RMS value on very short peaks!

McIntosh 600W per channel amp,good little amp. Wink.gif

Krell FPB600,better,bigger and more powerful amp. Smile.gif

600/1200/2400W RMS into 8/4/2Ohms..per channel.Dynamic headroom...who needs it with the FPB line?LOL

cwm35.gif

Even with the "tiny" ATI 1505 you have power to spare with RF-7's as mains and sourrounds. LOL And with the 2505 you enter the heavy hitter club.

TheEAR(s) Now theears

This message has been edited by TheEAR on 09-21-2002 at 07:00 PM

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yeah, I got a mcintosh amp and intstantly noticed the difference. you can tell if an amp will have decent headroom if when you turn it off, the music keeps playing for about 15 seconds. Thats a sin of big capacitors.

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New music system:

2.1 using SF-2's (soon to be RF-7's), and an RSW-15. for amplification Mcintosh MC02105, B&K PT-3 preamp, Sony SACD player. pioneer turntable.

Computer uses Promedia 2.1's.

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Cluless

When my girlfreind and I got dynamic in my old VW we usually wished for a little more legroom. We were both too shy and clueless to worry overmuch about headroom. That whole headroom thing seemed a tad gross at the time!

That GF has been my wife for almost 40 years and will still go out watching the submarine races with me any time we visit our old home town. I am one lucky guy!

Personal note:

Inside Joke - Yep! Hepenstall's is still the best place in the world to watch the submarine races! If you know about the place I am talking about email me!!

lmarshall703@shaw.ca

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It is meet to recall that the Great Green Heron rarely flies upside down in the moonlight - (Foo Ling ca.1900)

This message has been edited by lynnm on 09-21-2002 at 11:11 PM

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lynnm: Whoa! Let's keep this thread rated PG!!! Smile.gif

Hey, I wonder if I could make a 1000000u capacitor out of a 55 gallon drum, 10 boxes of Renolds Wrap, and a case of 10W-30? I could charge it up and let it play for a few hours!!!

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Receiver: Sony STR-DE675

CD player: Sony CDP-CX300

Turntable: Technics SL-J3 with Audio-Technica TR485U

Speakers: JBL HLS-610

Subwoofer: JBL 4648A-8

Sub amp: Parts Express 180 watt

Center/surrounds: Teac 3-way bookshelfs

Yes, it sucks, but better to come. KLIPSCH soon! My computer is better than my stereo!

For JBL related subjects and more fun, click: http://www.audioheritage.org

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Well fini, by the time most kids reach the age to move out on their own they will have probably turned their bedrooms into their own private dynamic headrooms. Sometimes becoming the size an entire state like Idaho.

Tipsy.gif

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tHe wORLDs werst TYPesT>

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I am lost... Smile.gif

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Receiver: Sony STR-DE675

CD player: Sony CDP-CX300

Turntable: Technics SL-J3 with Audio-Technica TR485U

Speakers: JBL HLS-610

Subwoofer: JBL 4648A-8

Sub amp: Parts Express 180 watt

Center/surrounds: Teac 3-way bookshelfs

Yes, it sucks, but better to come. KLIPSCH soon! My computer is better than my stereo!

For JBL related subjects and more fun, click: http://www.audioheritage.org

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My old TR-6 had great dynamic headroom, but zippo for leg-room.

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2 Channel

Transport: CEC TL-2X

DAC: Audiomat Maestro

Pre-amp: Wyetech Jade

Amps: Jeff Korneff 45

Interconnects/Speaker cable: Analysis Plus Solo Monocrystal

Power cords/line conditioner: CPCC Top Gun, Model 11, Super Power Block

Equip Stand: Grand Prix Audio Monaco

K-horns w/ALK

Second system- My dad's old Fisher 400-refurbished, Heresy II, Vecteur Variation CD player

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