Speaker level to line level converter box

[rgpit]

This is really a daughter project to my cylinder sub woofers project.

My integrated amp doesn't have a preamp output so I need to make a speaker level to line level converter box. I have been told that this is actually a preferred way to add a sub as opposed to using a preamp output. I don't know if that is true or if it really matters but what the hell!

Bought the following parts from Parts Express.
 2 chassis mount RCA jacks
 2 Dual 5-way binding posts
 2 10k Ohm 1Watt resistors
 2 1k Ohm 1Watt resistors
 1 small steel enclosure with rubber feet

That's it,short and sweet. I'll post a couple of pictures when it's built.

Ron

[MasterBlaster]

cool, look forward to it Ron.

Whats the power output of your receiver btw?

[rgpit]

Main Speakers are powered by a 38Wpc KT88 based tube amp. PrimaLuna Dialgue Two

[rgpit]

Here is the finished converter. Nuthin' special, but it works.

[BrianT]

Here is the finished converter. Nuthin' special, but it works.

Looks good

[BB3]

Jesus Christ Ron Is That Impressive. I Sure Wish That I Had Your Knowledge And Skills.

Excellent Work Ron. Oh ! And Did I Mention How Impressive It Is ? WOW !

Take Care Ron.---------BILL(BB3)

[Kingman]

Is this a version of the Carver Z-1 coupler???

[rgpit]

Is this a version of the Carver Z-1 coupler???

Not sure what the Z-1 is. Here is the circuit that I used. It is a simple 10:1 voltage divider circuit.

[MasterBlaster]

Ron,

Just curious...
The schematic calls for 10k and 1k resistors.
Why'd you use 100k and 10k?

I would expect that would seriously lower the output levels.

/Al

[rgpit]

Ron,

Just curious...
The schematic calls for 10k and 1k resistors.
Why'd you use 100k and 10k?

I would expect that would seriously lower the output levels.

/Al

Oops!...good eye Al. That was a typo. I actually used 10k and 1k.  (I edited the original post and put in the correct values)