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Old 24th January 2012, 05:09 PM   #21
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Quote:
Originally Posted by AndrewT View Post
Pd,
you have most of the concepts mixed up.

You need to go back a stage and re-learn what you have picked up so far.
Andrew,

I know basic concepts of speakers, impedences and wattage of amps ( which is more complicated). Beyond that Not much I know about rail volts, bias amps, mosfets.

Bi amping with F5's what are implications, advantages

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Pandu
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Old 24th January 2012, 05:12 PM   #22
flg is offline flg  United States
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Originally Posted by KatieandDad View Post
If you want more power look at the F5-Turbo..
Really? Where can I find out more about that?
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Increasing MOS-FETs on their own will not increase power output..
I don't know. what's your output impeadance?
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Originally Posted by KatieandDad View Post
In order to increase power you do need more output devices...
Wait a minute! which is it, more output devices or not? Did you work for the government, or maybe the military previously?
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...but that enables you to increase the power supply rails without stressing the MOS-FETs...
maybe just more current and not more voltage might not stress the FETs to much?
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Originally Posted by KatieandDad View Post
If you want more power - look at the Aleph 4, it is 100W/Channel in Class A.
Can you really take advantage of 100W/ch classA?
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Last edited by flg; 24th January 2012 at 05:20 PM.
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Old 24th January 2012, 05:16 PM   #23
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No you are NOT driving each driver at half the power.

Each driver is working within its own frequency band.

Both drivers are being driven fully.

It's over simplistic to say that the BASS is working at 25W throughout its audio range and the TWEETER is working at 25W throughout its range but that is what the set-up is capable of.

In reality the tweeter has less work to do and does get fed with less power .
Agreed, both the drivers are not working at half the power.

But at the same time an extra amp is going to supplement the speaker.

Also agreed that tweeter + midrange power drawn will be less than the bass driver. The point I am trying to make is there is help from an extra amp.

I dont understand the volts, gain. Can you look at my preamp specs, is it suitable for f5
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pandu
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Old 24th January 2012, 05:21 PM   #24
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Bi-Amping generally helps out, not with power output but the complexity of the amplifier having to drive a complex crossover.
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Old 24th January 2012, 05:22 PM   #25
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Originally Posted by flg View Post
Really? Where can I find out more about that?

I don't know. what's your output impeadance?

Wait a minute! which is it, more output devices or not? Did you work for the government, or maybe the military previously?

maybe just more current and not more voltage might not stress the FETs to much?

Can you really take advantage of 100W/ch classA?
I was over simplyfying a complex problem.
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Old 24th January 2012, 05:24 PM   #26
AndrewT is offline AndrewT  Scotland
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Originally Posted by pdhanwada View Post
Andrew,

I know basic concepts of speakers, impedences and wattage of amps ( which is more complicated).
From your questions and your replies and your statements, I can read that you do not know the basics.
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Old 24th January 2012, 05:26 PM   #27
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Please read the full thread.

YES, I do enjoy my music comfortably loud. Not excessively loud but I get no clipping with a nice 6W RMS background.

As AndrewT states, even at that modest volume, musical peaks will exceed 600W.

The Aleph 4 is a brilliant amplifier, easy to build and very easy on the ears.

I sold my Mark Levinson 60W/Ch Class A because it was "Horrible" in comparison.

Last edited by KatieandDad; 24th January 2012 at 05:29 PM.
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Old 24th January 2012, 05:30 PM   #28
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From your questions and your replies and your statements, I can read that you do not know the basics.
Knowing or not knowing basics is subjective. Depends on how we take it.
I definately agree that I am not an expert in that area.

I studied currrent electricity in college I*I*RT is power output by a resistor. With regard to electronics may not know much about it.

SOrry for bothering you.

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Pandu
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Old 24th January 2012, 05:32 PM   #29
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The F5 is truly lovely at LOW volume with VERY EFFICIENT speakers.

At 25W it will clip early into the program at anything about COMFORTABLY LOUD.

Your Pre should be fine.

A lot of us, me included, are driving Alephs with low gain pre-amps. Relying on the high 2V ouput of current CD players.

Apolgies to the vinyl players out there.

Last edited by KatieandDad; 24th January 2012 at 05:35 PM.
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Old 24th January 2012, 05:35 PM   #30
flg is offline flg  United States
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Originally Posted by KatieandDad View Post
I'm not familiar with that notation.

However, most of the lesser Pass amps will run in Class A to a certain point and then continue on in Class A/B.
Zen1,2,3,4???? Zen5? Maybe I should go look. Zen 6,7?? Zen 8,9 Well you could argue the Aleph...F1,2??. F3, and ZV9. F4 hey! Bingo! an amp that goes to classB operation!!! F5 And another!!!
He must have been thinking Pass Labs
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Last edited by flg; 24th January 2012 at 05:38 PM.
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