Iron Pre Essentials Kits For The DIYA Store - Register Your Interest

[HelmutHolz]

Okay, so no special way to build ACP but a combination.

 

[Zen Mod]

it's probably Babelfish J2, though confusing which one

second possibility of BJ meaning most likely inappropriate for DiyA....but, second thought, totally appropriate, if someone is asking for my opinion

 

[HelmutHolz]

Babelfish J2 is still in my drawer, one amplifier more or less.........

 

[ItsAllInMyHead]

what is the meaning of "ACP+ with the BJ2"?

ACP is clear but "BJ2"? May be a dump question......

all the best

Helmut

Hi Helmut -

Apologies for lack of clarity. Others had it correct. Just confirming.

Yes, using the ACP+ as the pre-amp with the Babelfish J2 (either version: MOSFETs or "SemiSouth down") made me smile.

It's interesting (to me) b/c the ACP+ has been referred to as the "Baby J2" by some, so it could be a BJ2 also.

Cheers,
Patrick

 

[HelmutHolz]

Thank's for explanation

 

[Zen Mod]

so it could be a BJ2 also

double BJ

what's not to like ..........

 

[ItsAllInMyHead]

^ If I go to our motor vehicle division and ask for a special number plate of "2BJ 4ME" ... They might put a special mark on my license after escorting me out of the building.

 

[Zen Mod]

 

[edwinjones4]

^ If I go to our motor vehicle division and ask for a special number plate of "2BJ 4ME" ... They might put a special mark on my license after escorting me out of the building.

 

[getgoin]

Got my Iron Pre Balanced SMD package last week and have got the PCBs stuffed except for Jumper 1 near Q2.
When do/don't you use it? I've searched around and can't find anything on it. I'm sure it's in plain sight, I just can't see it.

 

[6L6]

Look at the signal schematic.

https://d3t0tbmlie281e.cloudfront.net/igi/diyaudio/GYyQSGRLBbCr24yu.huge

EDIT... wait, hang on, you're talking about this...

Long story short, if you are using the on-board relays for switching, (which will be 98% of the builds) yes, stuff the jumper.

 

[edwinjones4]

Balanced out+, out- and ground have continuity (DMM beep) on my build. I’m assuming that’s wrong, true?

 

[6L6]

Well, logic through this and ask again…

Look at the signal schematic, specifically the transformer, and your wiring. (Which is correct, BTW…)

 

[Zen Mod]

Balanced out+, out- and ground have continuity (DMM beep) on my build

if you desolder autoformer from pcb, there will not be Beep!! anymore, but there will not be sound, too

 

[Zen Mod]

Long story short, if you are using the on-board relays for switching, (which will be 98% of the builds) yes, stuff the jumper.

correction:

Long story short, if you are using enclosed rotary switch for switching inputs, (which will be 98% of the builds) yes, stuff the jumper. If you're using Logic solution of any sort, for inputs switching and Volume, do not stuff the jumper

 

[getgoin]

Got it. Thanks

 

[Ixnay]

The Mogami cable arrived today. I really lucked out with stripping it, as my present wire strippers worked flawlessly on both the shield and tiny 28 ga. Center wire! You all know how rare this is. Now, let's see how it solders

 

[sbelyo]

This would would qualify as logic https://www.amb.org/audio/delta2/ so I'll omit the jumper

 

[sbelyo]

The Mogami cable arrived today. I really lucked out with stripping it, as my present wire strippers worked flawlessly on both the shield and tiny 28 ga. Center wire! You all know how rare this is. Now, let's see how it solders

It solders great, at least for me

 

[Ixnay]

Does the insulation hold up well to heat? Some of them melt like crazy before you have even started. OTOH, the same insulation that works well in heated conditions (Teflon) can be a real test to prep. Strips hard, but solders well.