Which REL subs for ProAc One SCs?

Bob, there is an NHT X2 in the classifieds for $600. FYI.

Jim

Thanks much for the replies guys. I'm so glad to hear that I may be able to still use the One SCs. I love their tonality and imaging. I'll start looking for a REL sub.

With your setups, you did not pass the lows to the monitors, just the subs? I can see this would put much less demand on the ProAcs.

I only listen to 2 channel music, jazz.

Jim

Thanks again guys.

Sc53 is the Neutrik made by REL or is it separate?

Erik, I wish I coujld afford a D30R right now. I've spent some time listening to the D40R, it was magical. Has to be in my future though.

Bob, yes I am worried about that stress. While sending some bass energy to the sub will help, still it's a big space and I do listen loud. My RM9 will easily overwhelm the One SCs. I guess I'll just have to find out. If I end up selling the ProAcs the sub will be useful anyway. I wonder if it would be useful to set the high pass at a higher frequency? The woofers in the One SC are small.

Velodyne makes the SMS-1. Don't know if it has a parametric or if it differs from Hsu's network. What is the advantage of a built in high pass vs. the REL with an external?


Thank you,
Jim

Thanks Larryi for the link, I'm going to check it out now.
Jim

Problem solved!

Sarah (Sc53) noticed I said I wished I could find some 2:5s. Well she saw a pair for sale here and let me know and I now own an absolutely flawless pair of 2.5s in oak, purchased from Frank in Phoenix. A much more satisfactory solution than trying to get the One SCs to handle the big area with their small woofers and a sub.Thanks again for all the comments everyone.

Thanks Sarah and Frank!
Jim

Thanks so much everyone for the great help.

Bob, so I'm on a hunt for a crossover. I knew about the SMS but not it's cutoff range. Makes me think I may have to choose between having a too-low cutoff or going full range on the ProAcs. I wonder if there is also the consideeration of how high the subs work well, if I'm trying for a high cutoff.

Any ideas on where to find a crossover with high enough range? Perhaps I could have one built?

Jim

Rhljazz, good memory! I do go to Phoenix HiFi, but live a little ways off in Las Cruces, NM. I have talked about going to Phoenix HiFi in this forum though, so good eye.
They are nice guys with lots of lovely speakers and I always leave their acutely aware of my earlier career choices :-).

Jim

Bob, this is from the SMS-1 manual. What do you think about being able to find a good crossover with the ProAcs and a sub?

www.velodyne.com
16 - Digital Drive SMS-1 User’s Manual
All six presets contain the following fields:
•
Low Pass Crossover Frequency and Slope
– Adjust the upper limit of your subwoofer’s frequency
response. Select a crossover setting, in increments of 1, between 15Hz and 199Hz and slope at 6, 12,
18, 24, 30, 36, 42 and 48 dB/octave.

Bob, thanks so much for the great info and pointers. I'll have some work to do to thoroughly check them out.

With the RM9 I felt I was pushing the One SCs to their conservatively safe limit in my 11x12 room. I think if I try to run them full range in my much bigger new space it will be too much for them, so I do need to find a satisfactory way to divert the lows to take advantage of 1/f power spectra. I also agree that 80 is too low due to the small woofers in the ProAcs. As well as that first order is not going to be decisive enough. I took a glance at Marchand and that looks promising. I run JL in my car, and the amp has a good tone, if dry compared to my tubes. Shouldn't matter on the sub.

I do wish it was not so difficult to find a very nice pair of Response 2.5s.

Thanks so much.

Jim

Sc53, I am in New Mexico. Could you drop me an email about these? I might drive across the country if we can work it out. Then I would sell my (perfect, Yew wood) One SCs and stands.

Thanks. Jim
jkk251@gmail.com (hope audiogon allows this)