JAM by Duelund

Agreed on a Path Audio as they are quiet and even handed throughout the frequency spectrum.  . Best resistors I have used. I like the Mills MRA12 better than Mundorf, but both are good. Mills are nice and extended, but never bright.  

@audioman58  Extremely helpful feedback. My PAP Horn1 crossover came with 20.2 uf cap installed per channel. Here are the options you suggested so far:

1. Clarity Cap CSA (15 uf) + Cactus Blue (2.2 uf) + Jupiter Copper (3.3)
2. Jantzen Alumen Z cap ( 10 uf + 8.2 uf) + Dueland Jam (2.2 uf)
3. Jantzen Alumen Z cap (10 uf + 10 uf) + Dueland Silver Foil by pass cap

Option 1) is the most expensive. Option 2 and 3 is very close in price. Not sure what will sound better. What do you think about the following:

4. Jantzen Alumen Z cap (10 uf + 8.2 uf) + Cactus Blue (2.2 uf)

Option 4) is cheapest (only by a tiny bit).

btw, I ordered Path resistors to replace my Mundorf supremes in the crossover. However the Path resistors are 10W and going to replace Mundors 20W in PAP. Is that ok?

Just preamp so far .

A 2.2 Jupiter Copper  and 18uf Jantze n is also a very good combo.
The bypass caps can all ways be added ,you have a Copper, or silver option 
Depending what you need more of . Silver for more top end, copper for more meat
On the bones.
 The path Audio are 10 watt . For horn Only . For woofers not as sensitive 
To critical midrange.  Write yo Chris , parts connexion tech support 
The munforf 20W  supreme is there for the big woofers If you want to improve them cut off rivets holding wire , get 18awg Neotech solid core wire 2- 4inches pieces solder where you cut . Much better. Stock are Nicole plated copper.

Just order two Path Audio and put in parallel. They will now handle 20 watts. Two in parallel always sound better than one! If you need a 4ohm resistor, example only, put two 8 ohm in parallel for your 4 ohm spec.