2. tech-talk
  3. 1338771251

Subwoofer connection for Fisher 500c

Hello folks!

I recently acquired a Velodyne ULD-18 sub for next to nothing. By outward appearances it looks to be in excellent shape. The driver looks and feels excellent, and the 400 watt servo controller is in fine shape too. According to the owners manuel a normal way to connect the sub to a system is connecting the servo controller/amp in between your amp and preamp with two sets of RCA cables. So my problem is that I have this vintage Fisher 500c receiver. It has a "to reverb" feature with four inputs, a pair of right & left "ins" and a pair of right and left "outs." I was hoping this would be the way to connect it properly. However, I've got nothing happening in the way of sound from my monitors or the sub in this configuration.
Any help would be appreciated! I can send photos too, if that helps.
Thanks!
lincnabby

Showing 4 responses by lloydelee21

lloydelee21
1,202 posts
 
Hi Lincnabby,

1. Yes that is what some Velodynes do...most of them in fact. Driven by hometheater specs more than music.

2. The volume control should always be adjusted by your preamp automatically...particularly if you are using the crossover. the reason is that the signal presumably originates from your preamp...goes out to the subwoofer.

I presume this is how you are using your Fisher receiver?
lloydelee21
1,202 posts
 
What speaker are you using? I would use the Velodyne in parallel (without active crossover) unless you have small bookshelf speakers. If you run in parallel, then you can connect from your L/R RCA outs on your Receiver to your sub. Keep running your speakers from your receiver via the speakerwire.

If you have bookshelves, pls post.
lloydelee21
1,202 posts
 
Agree with Tls49...try speaker cables to sub and speaker cables back to your speakers...perhaps not as good as line-out but you dont seem to have that option with your receiver. at least this way, you control speaker and sub volume simultaneously from your receiver volume control.
lloydelee21
1,202 posts
 
Yes...just looked up the old manual from Velodyne website...you're right. I suppose the good news is they used to sell a passive accessory that allowed you to bypass the 85hz crossover and i guess change it. They may not offer it anymore, but just a thought.

wont help with volume control, but might with your blending of the speakers with sub.
More to discover