Aleph 1.7 Equipment

[Pocoyo]

Hii Mr Pass ... im a newbee

After i hear from anybody that aleph 1.7 having a good sound
so i decided to buy it from DIYAudio group buys. I buy it from
Veteran and the boards come to me with nice condition

Now my first question is about pot

I look that this preamp have 2 channel and each channel have
+ and -. For drive this channel can we use "stereo" attenuator
like dact ct 2-2K(X) or must we use "balance stereo" attenuator
like dact ct 2-4K(X)

sorry for talking about brand here
is we must use "balance stereo" so it was prize US$ 343
is there any attenuator cheaper than this ?

If we can use "stereo" attenuator what me must do to make
it this thing works?

what is the different result between this "stereo" attenuator
and "balance stereo" attenuator in your preamp

thank you, regards jeffry

[Nelson Pass]

You can drive the inputs with a single-ended (RCA) input and
it works fine, but remember to place the shorting jumpers between
pins 1 and 3 of the unused XLR input connectors, otherwise it
will not sound good.

Balanced inputs are slightly preferred, and they do sound a little
different. You will expect more 2nd harmonic character with
the single-ended input, and you may or may not prefer it.



Later--- It occurs to me that you are talking about the balanced
output attenuator. In this case, balanced attenuation if necessary
if you want balanced outputs, but if you only need single-ended
output you can use a single attenuator and just short the
unused output to ground.

[Pocoyo]

thank you for reply Mr Pass

If i want balance output what attenuator ( type is important )
i must use it for this aleph 1.7

[Pocoyo]

I buy 2 boards from Damian

1 set i will use Microcontroller with display

another set i will build in other ways
i will try in unbalance version like mr pass said
( thanks) but i prefer build in balance version

if anybody can give me direction to build this in
balance version (cheaper way), please help me

regards, jeffry

[Ipanema]

Hi Jeffry,

You might want to try using one stereo carbon pot for each channel of Aleph1.7. It works in mono, so you need to adjust two knob instead of one for stereo. As a bonus, you will also have a balance adjustment for free.

Regards.

[Pocoyo]

This is a good idea too
but grrrrrr !!!

what i mean ... is there a cheaper pot ?
with good quality and just use one pot
for one preamp

So i got a cool preamp with a best quality
This is the hard part for cool appearance
For this maybe i will buy it from percy i thing

by the way thanks a lot ipanema

[analog_sa]

Originally posted by Ipanema
Hi Jeffry,

You might want to try using one stereo carbon pot for each channel of Aleph1.7. It works in mono, so you need to adjust two knob instead of one for stereo. As a bonus, you will also have a balance adjustment for free.

Regards.

Not a good idea. Channel imbalance will lead to distortion.