Sunday morning Type E crossover build

[Wardsweb]

Here is how I spent my Sunday morning. A big shout out to Dean for the parts. The cedar boards I cut from a log I have had in my shop for over 10 years. I knew it would come in handy one day. Anyway, I would change a couple things, if I were ever to do this again, but over all not bad for something that gets hidden away inside a pair of Heresy's.

 

 

[Deang]

How do those crappy caps sound?

[babadono]

Hey, hey  watch out ain't those the  certified Klipsch genuine super duper no compromise capacitors installed in all new Klipsch speakers?

[Marvel]

I love the look of the cedar!

[captainbeefheart]

Looks great but I wouldn't trust a crimp connection on the capacitor leads.

 

 

 

 

[OO1]

Take a look at the  suspended capacitors , and the air flow underneath the  capacitors  .

[Deang]

Zoom zoom. 

[Deang]

On 12/6/2022 at 6:51 PM, babadono said:

Hey, hey  watch out ain't those the certified Klipsch genuine super duper no compromise capacitors installed in all new Klipsch speakers?

 

Nah, just the part you need for the network to work as intended.

 

Klipscheads: "We love our Klipsch stuff, it sounds great!"

 

Also Klipscheads: "Klipsch is lying to us and holding us back with all of these crappy parts!"

 

I have contributed to this mess and now the chickens have come home to roost.

[Wardsweb]

On 12/6/2022 at 8:00 PM, captainbeefheart said:

Looks great but I wouldn't trust a crimp connection on the capacitor leads.

 

 

 

 

It all depends on using the correct tool for the optimum crimp. I have Amphenol mil spec crimpers that were required when I was working deep space satellites. Done correctly, a crimp connection is better than solder and one of the reasons why they are used by NASA. Given a crossover is low voltage, low current and a fairly stable platform, I think they will be fine. Then again if something fails, it's an easy repair.

[captainbeefheart]

1 hour ago, Wardsweb said:

It all depends on using the correct tool for the optimum crimp. I have Amphenol mil spec crimpers that were required when I was working deep space satellites.

 

A proper crimp tool will help make an optimal crimp for sure.

 

Contacts that show the following conditions shall be prohibited:
a. Cracks in the plating or base metal.
b. Tarnishing or discoloration of the plating.
c. Plating removal or flaking.
d. Out-of-roundness of the wire well entrance.
e. Exposed base metal

 

I doubt a capacitor with thin tinned copper leads would be put into this style crimp connector in a deep space satellite. The crimp will most likely lead to exposed base metal in the cap leads with possible damage/cracks into the plating or base metal.

 

1 hour ago, Wardsweb said:

Done correctly, a crimp connection is better than solder and one of the reasons why they are used by NASA.

 

Both have pros/cons, I wouldn't put one over the other generally.

 

Nasa uses both solder and crimp in the last technical standards release I have;  NASA-STD 8739.4A  released to public in 2016

 

 

1 hour ago, Wardsweb said:

Given a crossover is low voltage, low current and a fairly stable platform, I think they will be fine. Then again if something fails, it's an easy repair.

 

I completely agree. 

 

I only mentioned it because I have seen failures from people using these exact type of crimp connectors with electrical components thin leads in various Industrial control panels. They most likely used standard electrician crimp tools and probably didn't understand how to make a quality crimp connection like you.

 

As you point out it's a simple fix regardless. Now that I know you have a solid background and know what you are doing I wouldn't have even posted. I figured I could possibly help someone that may not know anything about quality connections but you are a professional so disregard my nonsense.

[Deang]

I avoid it because it’s only 20 gauge wire, and once you crush it, there isn’t much lead material left at the end of crimp to maintain mechanical integrity, especially inside of a loudspeaker cabinet which is about the worst place possible for a network. 

[geoff.]

…I always cut the lead twice as long as needed, bend it in half, and double the lead going into the crimp 

 

Really nice looking work by the OP by the way. Cutting the wood cross sectional is stunning. Needs a Lexan case, unless there are no other lifeforms present, lol. 

[tigerwoodKhorns]

6 hours ago, Wardsweb said:

It all depends on using the correct tool for the optimum crimp. I have Amphenol mil spec crimpers that were required when I was working deep space satellites. Done correctly, a crimp connection is better than solder and one of the reasons why they are used by NASA. Given a crossover is low voltage, low current and a fairly stable platform, I think they will be fine. Then again if something fails, it's an easy repair.

 

I heat up the plastic and remove the metal 'tube' portion of the crimp connector, crimp the connection, then solder it and cover in heat shrink.  It takes me a while to complete my projects...

[henry4841]

6 hours ago, tigerwoodKhorns said:

 

I heat up the plastic and remove the metal 'tube' portion of the crimp connector, crimp the connection, then solder it and cover in heat shrink.  It takes me a while to complete my projects...

Same here, crimp and then solder. 

[Wardsweb]

11 hours ago, captainbeefheart said:

 

A proper crimp tool will help make an optimal crimp for sure.

 

Contacts that show the following conditions shall be prohibited:
a. Cracks in the plating or base metal.
b. Tarnishing or discoloration of the plating.
c. Plating removal or flaking.
d. Out-of-roundness of the wire well entrance.
e. Exposed base metal

 

I doubt a capacitor with thin tinned copper leads would be put into this style crimp connector in a deep space satellite. The crimp will most likely lead to exposed base metal in the cap leads with possible damage/cracks into the plating or base metal.

 

 

Both have pros/cons, I wouldn't put one over the other generally.

 

Nasa uses both solder and crimp in the last technical standards release I have;  NASA-STD 8739.4A  released to public in 2016

 

 

 

I completely agree. 

 

I only mentioned it because I have seen failures from people using these exact type of crimp connectors with electrical components thin leads in various Industrial control panels. They most likely used standard electrician crimp tools and probably didn't understand how to make a quality crimp connection like you.

 

As you point out it's a simple fix regardless. Now that I know you have a solid background and know what you are doing I wouldn't have even posted. I figured I could possibly help someone that may not know anything about quality connections but you are a professional so disregard my nonsense.

No worries man. Anyone who can't take constructive criticism should reevaluate their objection. All good.

 

There will always be someone with more and someone with less; money, education, experience, life, etc. You can learn from everyone, from the janitor to the CEO.

[mark1101]

Those look great Luther.

[Deang]

5 hours ago, Wardsweb said:

No worries man. Anyone who can't take constructive criticism should reevaluate their objection. All good.

 

There will always be someone with more and someone with less; money, education, experience, life, etc. You can learn from everyone, from the janitor to the CEO.

 

Wisdom. 

[babadono]

1 hour ago, Deang said:

 

Wisdom. 

It is what was with God when the universe was created.