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Re: Revel?
AAAA #419654 06/30/16 03:34 AM
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serenity,

i'm using a krell fpb 300cx to power the front drivers on my lfr's and a kav 205a to power the rear drivers.

the 300cx is rated down to 2ohms @ 1200w per channel, the 250a is rated down to 4 ohms @ 500w per channel.

granted, you dont need that much power... but, to Ians comment about dynamic head room i thought i'd chime in...

Re: Revel?
AAAA #419657 06/30/16 09:24 AM
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My speakers have never sounded as muscular as when I demo'd them on a huge $$ classe amp setup at the dealer. I had always thought it was just a good room we were in.

I thought I had a powerful setup. I guess it's all relative. smile One thing about this hobby. The more you learn the more you realise you dont know. Freaking hindsight biting me again.

Re: Revel?
AAAA #419658 06/30/16 01:31 PM
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I'd tell you to enjoy what you have. I'm probably running more power than most.

Similar thing as cars.. Right? Every time i see someone with a gt3 cup car i wish i had one (kind of)...

Re: Revel?
AAAA #419659 06/30/16 01:53 PM
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I'll just have to rent one and see if big #'s make a difference worth the outlay. And will report back as usual. Pro amps are super cheap to rent. $50/month.

Re: Revel?
AAAA #419662 06/30/16 04:15 PM
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The pro amps are quite popular with the dedicated theater room crowd. Very cost effective power.

Re: Revel?
AAAA #419666 06/30/16 08:12 PM
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Call me proactive.... It might rain saturday. grin

Rented a yorkville amp at 1800 a side.. My wife says "I hope you have fun with it. But I hope it doesn't make a difference." She knows me all too well. lol.


Re: Revel?
AAAA #419673 07/01/16 08:41 AM
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Ian Offline
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I have not checked the specs of the amp you have rented but speaking in general terms these sorts of amps tend to have no dynamic headroom and limiter circuitry, so the wattage rating can be tough to make a comparison with. Does this amp have two power cords?


Ian Colquhoun
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Re: Revel?
AAAA #419675 07/01/16 11:34 AM
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I think the quoted1800 is at 2 ohms. Its a class H 3 tiered rail switch design. One 15A cord on it. Havent hooked it up yet. Wanna be sure I dont cook something. Reading manual thoroughly.

8ohm 600w
4ohm 1000w
2ohm 1800w

This is with the 2ohm voltage limiting mode engaged. burst rated at 1000/1800/2500

1000/1800/NA 4ohm mode no limiting mode. burst rated at 1800/3500.

I will run it in limited 2ohm mode so I reduce the risk of letting the smoke out of my speakers.... I expect a noise floor when I hook this up. No idea how it will respond to my puny speakers.

Re: Revel?
AAAA #419676 07/01/16 12:35 PM
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Ian Offline
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What are you using for speakers?


Ian Colquhoun
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Re: Revel?
AAAA #419677 07/01/16 12:56 PM
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Mordaunt Short Mezzo 6's.

Amp in system and level matched. Running amp wide open (no attenuation) with preout level lowered to compensate. 1db volume changes correspond to 1db spl in room. All should be well gain wise. Slight hiss at 2' from speakers with no signal playing. Quiet at mlp.

Just starting to listen... I might get brave and go to 4ohm full voltage mode.

I am just barely lighting the second meter light at 75db. Its still asleep.

This is fun.

Last edited by Serenity_Now; 07/01/16 01:15 PM.
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