Aleph VS HK

Ilianh · 23rd November 2002, 05:19 AM

ok, well
i have this Harman Kardon pm645vxi
http://www.harmankardon.com/specific...645VXI&sType=H

and i was wondering, should i launch myself in making a Aleph (2 or 3)

or should i keep my HK, do you guys think i would get a major improvement by having a aleph?

Considering i could also change caps i in the HK with some better ones..

Fred Dieckmann · 23rd November 2002, 09:40 AM

Most definitely keep the Harman Kardon

wuffwaff · 23rd November 2002, 11:48 AM

don´t forget you also need a preamp for the Aleph.

william

P.S. sell the Harman

joensd · 23rd November 2002, 01:04 PM

Sorry Illianh for being off topic here!

Wuffwaff, I´m planning on building an aleph3 next.
Why is there need for a preamp with the aleph?
Isn´t the input impedance high enough for just connecting a pot?

Jens

audionut · 23rd November 2002, 02:16 PM

I think the alephs don't have as much gain, so to drive them to thier limits, you need a preamp.

ststone · 23rd November 2002, 03:35 PM

unless you want to be part of the T(tinnitus) gang you need some volume controle, don't you ?

wuffwaff · 23rd November 2002, 05:09 PM

Jens,

with only 20dB of gain it will be quite difficult to use a passive preamp unless you´ve got really efficient speakers.

My preamp has 6dB of gain and with some records / cd´s I need to turn up the volume all the way.

william

joensd · 23rd November 2002, 05:17 PM

Quote:

unless you want to be part of the T(tinnitus) gang you need some volume controle, don't you ?

Yeah, you´re right I don´t want to. That´s why I wanted to connect a pot=potentiometer.

Quote:

I think the alephs don't have as much gain, so to drive them to thier limits, you need a preamp.

Uups, think I have to investigate more into the subject.
I thought the Aleph is designed to be an independent power amplifier which means to me that it´ll be driven to full for example by a CD-Player.
Is the ZenV4 the same??

(don´t beat me I´m class a newbie and reading Nelson´s patents is on my "soon-to-do-list")

So I have to build some preamp first heh?.........

Thanks in advance

joensd · 23rd November 2002, 05:21 PM

Hi Wuffwaff,
OH I´m a slow writer!
OK, I´ve taken in I need a preamp.
As I said I´ll still have to read a bit before I build it.
Which preamp are you using? DIY?

thanks
Jens

PS:Where did you get your big caps for your new aleph??

Nelson Pass · 23rd November 2002, 05:41 PM

You can crank up the gain via the feedback loop as much
as you like on any Aleph.

23rd November 2002, 05:19 AM	#1
Ilianh diyAudio Member Join Date: Oct 2002 Location: Montreal, Canada	Aleph VS HK ok, well i have this Harman Kardon pm645vxi http://www.harmankardon.com/specific...645VXI&sType=H and i was wondering, should i launch myself in making a Aleph (2 or 3) or should i keep my HK, do you guys think i would get a major improvement by having a aleph? Considering i could also change caps i in the HK with some better ones..

23rd November 2002, 09:40 AM	#2
Fred Dieckmann diyAudio Retiree Join Date: Oct 2002 Location: Spain or the pueblo of Los Angeles	or should i keep my HK Most definitely keep the Harman Kardon

23rd November 2002, 11:48 AM	#3
wuffwaff diyAudio Member Join Date: Aug 2001 Location: Ingolstadt Germany	don´t forget you also need a preamp for the Aleph. william P.S. sell the Harman __________________ een ooievaar is geen konijn want zijn oren zijn te klein!

23rd November 2002, 03:35 PM	#6
ststone diyAudio Member Join Date: Jul 2002 Location: Marriott Assisted Living, Boca Raton, FL	unless you want to be part of the T(tinnitus) gang you need some volume controle, don't you ? __________________ alleen vragen

23rd November 2002, 05:09 PM	#7
wuffwaff diyAudio Member Join Date: Aug 2001 Location: Ingolstadt Germany	Jens, with only 20dB of gain it will be quite difficult to use a passive preamp unless you´ve got really efficient speakers. My preamp has 6dB of gain and with some records / cd´s I need to turn up the volume all the way. william __________________ een ooievaar is geen konijn want zijn oren zijn te klein!


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23rd November 2002, 01:04 PM	#4
joensd diyAudio Member Join Date: Dec 2001 Location: Germany	Sorry Illianh for being off topic here! Wuffwaff, I´m planning on building an aleph3 next. Why is there need for a preamp with the aleph? Isn´t the input impedance high enough for just connecting a pot? Jens

23rd November 2002, 02:16 PM	#5
audionut diyAudio Member Join Date: Jan 2002 Location: Cleveland ohio	I think the alephs don't have as much gain, so to drive them to thier limits, you need a preamp.

23rd November 2002, 05:21 PM	#9
joensd diyAudio Member Join Date: Dec 2001 Location: Germany	Hi Wuffwaff, OH I´m a slow writer! OK, I´ve taken in I need a preamp. As I said I´ll still have to read a bit before I build it. Which preamp are you using? DIY? thanks Jens PS:Where did you get your big caps for your new aleph??

23rd November 2002, 05:41 PM	#10
Nelson Pass The one and only Join Date: Mar 2001	You can crank up the gain via the feedback loop as much as you like on any Aleph.

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