Mezmerize B1 Buffer Preamp

[Ana]

This thread is for discussions about the Mezmerize B1 Buffer Pre Amplifier. For more information on this product, please see the product page below.

• Product Page
• Schematic
• Bill of Materials
• Dimensions

Threads on diyAudio that relate to this product (If we have missed one, please post it in this thread and we will add it to the list):

• Build Thread: Mezmerize Build Thread
• Build Thread: http://www.diyaudio.com/forums/anal...otrodded-blue-dcb1-build-132.html#post2700123
• The B-1 Mezmerize is based on this: B1 Buffer Preamp

 

[adusson]

PCM1704

Hi,

if I would use the Mezmerize B1 Buffer Preamp in my DAC instead of dual opamps, what changes do I have to do, no vol.pot etc. DAC-chip is 4x PCM1704, 4x op-amp INA103. Of course I need 2 boards for balanced signal.

/Anders

 

[Salas]

That one you would be better off asking in the digital forums that they are familiar. So they can probably reply if 4 JFET DC coupled buffer channels are what you can substitute in your application. That is what two Mez boards will provide along with input selection bays that can be left unused, signal can be fed with no vol pot also.

 

[adusson]

Thank you, I will try there.

 

[henryve]

Any ideas when the boards will be back in stock?

 

[daniel1221]

I would also like to buy a PCB. When or if are they expected to be back in stock?

 

[jaggel]

Any news whether or not the PCB will be back in stock?

 

[geofior]

Put me in the list also.
Thanks

 

[Salas]

They will be back in stock soon as Jason informed me.

 

[Jason]

Just double checked with our supplier - they were sent a while ago, should be hitting the USA very soon.

 

[zycomatique]

Hi,

If somebody sell his mesmerize Buffer...I could be the one to buy it!

thanks: david

 

[henryve]

The Mesmerize is back in stock at the Store. Just ordered mine.

 

[Jason]

The Mesmerize is back in stock at the Store. Just ordered mine.

Yep - back in stock! Sorry for the wait!

 

[jswen]

PS Caps

Will this allow for 4 - 4700uF caps as shown in some threads? Or two as shown in the product page pic.

 

[Salas]

2 main filter capacitors. It is not meant for high hot-rod.

 

[jswen]

Thanks

 

[Paul Butterfield]

Where might I find a Mesmerize 'kit' that includes all or most of the parts needed?

Links, Please!

Paul B (No, I'm not the dead P.B) "Grins"

 

[joe]

Why are 470R resitors 0.W carbon?

HI why are the 470R resitors listed as carbon film 0.5W in the BOM? For me they look like gate stoppers. Do I miss anything?

Thx
Joe

 

[Salas]

Because carbon film can make better gate stoppers.

But you will have no problems with anything low inductance good make metal film. The design is not marginal for phase.

 

[Salas]

Where might I find a Mesmerize 'kit' that includes all or most of the parts needed?

Links, Please!

Paul B (No, I'm not the dead P.B) "Grins"

I don't think there is such a thing. Newark and Mouser, a beer, and an hour of browsing their parts stock should do the trick.