I used the PAC Int RSIC-1 clips in my old basement theater for the walls part of the ceiling and the DC04X2 version for my drop ceiling. Both worked well in isolating the sound from adjoining rooms and upstairs. Bass still got through...
I special ordered them directly from PAC Int. I got the furring strips from a construction material wholesaler...
Thanks
@Bryce_H ! I will make an inquiry with PAC int directly and see what they quote me on about 100 RSIC-V clips.
In the meantime, I did find a reasonably priced online source that offers free shipping with only a 10 - 20% markup on their goods:
https://www.tmsoundproofing.com/Resilmount-A237-Resilient-Sound-Isolation-Value-Clip.html
They also offer furring/hat/resilient channels. Unfortunately, they only sell them in packs of 20, which would leave me paying for about 10 - 15 more than I needed:
https://www.tmsoundproofing.com/hat-channel-20-pack.html
One of the guys from soundproofingcompany.com who is active on the forums wrote a post stating that the type of clips made increasingly less of a difference as the mass of the drop ceiling increased. He suggested that the difference was negligible with a 2x5/8" drywall green glue sandwich (which is where I'm headed). Since the RSIC-1, A237R, and "whisper" clips are literally 3x the price, I feel it would be a waste of about $300. I've also seen studies that show great results by attaching furring channels directly to each joist or stud by attaching one side of the channel per joist/stud and alternating sides at each joist/stud.
As it stands, my setup will have the following to help mitigate noise between house levels:
1 layer fiberglass insulation
1 layer ROXUL safe'n'sound insulation
IB-1 sound clips
25 gauge Furring/Hat/Resilient channels
1 Layer 5/8" drywall
2 tubes green glue per 4'x8' area
1 layer 5/8" drywall
At this point, the only other step that I could take to make any significant difference (reasonably) is to add a green glue sandwich to the under-side of the top floor sub-flooring in between each joist. I'm not doing that.
I don't want to use channels on the walls for a number of reasons (two are outside walls), so I'm only going to be using a green glue sandwich (and thin brick tile for aesthetics). The floor is concrete slab, and I'll probably adding a floating layer of OSB tongue and groove subfloor on top of a layer of foam to increase isolation against coincidence vibrations. For aesthetics, I'll put a high-end, thin, faux wood vinyl flooring on top of that.
I looked through all threads that you owned and wasn't able to find the post that showed your setup. Can you tell me what you did, or link the thread? How bad was the bass leak, and how high many decibels did you have to pump out to make it "bleed" upstairs?