Guitar Pedals · owner-verdict comparison

CS-3 Compression Sustainer vs Boss RV-6 Reverb: what real owners say

Real owners lean toward the Boss RV-6 Reverb: 66% of 68 owners recommend it, vs 43% of 70 for the CS-3 Compression Sustainer.

Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score

CS-3 Compression Sustainer

43%of 70 owners recommend
43% recommend · 27% neutral · 30% don't
Owners praise
  • Delivers a hard, audible squash and long sustain that owners on both sides of the argument describe the same way, so what a buyer gets is not in dispute
  • Tightens up clean and palm-muted rhythm playing, with several owners saying those parts sit better in a band mix with it on
  • Cheap and durable enough to stay on a board for years, including one owner who has not taken it off in nine
Owners complain about
  • Noise climbs with the sustain control, and owners repeatedly report hiss once the knobs pass the middle of their travel, worse with drive or fuzz in the chain
  • Squeezes the life out of the signal for a good number of owners, who describe flattened picking dynamics rather than subtle control
  • Eats the low end on bass, the most repeated complaint from bass players, several of whom had to add the lows back or replace the pedal outright
Full owner report →

Boss RV-6 Reverb

66%of 68 owners recommend
66% recommend · 24% neutral · 10% don't
Owners praise
  • Modulate mode is the standout, and several owners keep the pedal for that setting alone
  • Shimmer turns lush and usable with the tone knob rolled right down
  • Quick to dial in, with no hidden button combos or manual to keep referring back to
Owners complain about
  • A minority hear the algorithms as digital or metallic, competent rather than inspiring
  • Shimmer is abrasive at default settings and needs the tone rolled well back to tame
  • Too conventional for players who want experimental or heavily washed ambient sounds
Full owner report →

Which should you buy?

Get the CS-3 Compression Sustainer if
  • ✓Players who want compression they can hear working, with long sustain, rather than an invisible peak trimmer
  • ✓Anyone tightening up clean or palm-muted rhythm parts so they sit better in a band
  • ✓Budget boards where a tough, cheap pedal that stays put matters more than refinement
  • ✓Bass players who want more bite up top and do not mind adding the lows back with EQ
Skip it if
  • Bass players who need the low end intact, since eating it is the most repeated complaint from that group
  • Anyone after a transparent always-on compressor that controls peaks without coloring the tone
Get the Boss RV-6 Reverb if
  • ✓Players who want one reverb for standard hall, room, plate and spring sounds and expect to run it always-on
  • ✓Anyone who wants shimmer occasionally and is willing to roll the tone knob back to get it
  • ✓Gigging and travel-board players who need something compact that holds up at volume
  • ✓Boards that already have a weirder ambient reverb and want a dependable base layer under it
Skip it if
  • Players chasing experimental, washy ambient textures as their main sound
  • Anyone who wants a reverb with a strong voice of its own rather than a neutral do-everything one

What CS-3 Compression Sustainer owners say

“The CS-3 is what I want my compressor pedal to sound like. You can get that real squashy sound it's what you're looking for. Mine did eventually fail though, that bummed me out.”
— MLoxxer on Reddit
“Great pedal - somehow less noisy than pricier compressors but not as squishy, although it does the clanky compression very well. Also great as a boost on lower compression levels.”
— procraffinator on Reddit
“I used a Cs3 on my board for like 6 months and really wanted to like it but to me it's a piece of junk for the same reasons you said. Noise everywhere if you surpass the middle of the knobs.”
— carlitox3 on Reddit

What Boss RV-6 Reverb owners say

“The Reverb is a gem. That pedal has a lot of settings to get some really cool sounds out of it.”
— neverw1ll on Reddit
“Big fan of RV-6. When I got it I thought it was “pretty good” but after a couple of years I love it.”
— ziganaut on Reddit
“Had the RV-6 at one point, but found it too metallic. All Boss reverbs are like that to my ears though. Modulated is the best algo on the RV-6, but it seriously pales in comparison to Mercury7 modulation.”
— KickFragrant7836 on Reddit

CS-3 Compression Sustainer vs Boss RV-6 Reverb: frequently asked questions

Is the CS-3 Compression Sustainer or the Boss RV-6 Reverb better?

Real owners lean toward the Boss RV-6 Reverb: 66% of 68 owners recommend it, vs 43% of 70 for the CS-3 Compression Sustainer.

Who should get the CS-3 Compression Sustainer?

Owners point the CS-3 Compression Sustainer at players who want compression they can hear working, with long sustain, rather than an invisible peak trimmer, and anyone tightening up clean or palm-muted rhythm parts so they sit better in a band.

Who should get the Boss RV-6 Reverb?

Owners point the Boss RV-6 Reverb at players who want one reverb for standard hall, room, plate and spring sounds and expect to run it always-on, and anyone who wants shimmer occasionally and is willing to roll the tone knob back to get it.

What do owners complain about?

The most-cited downside of the CS-3 Compression Sustainer is noise climbs with the sustain control, and owners repeatedly report hiss once the knobs pass the middle of their travel, worse with drive or fuzz in the chain. For the Boss RV-6 Reverb, it's a minority hear the algorithms as digital or metallic, competent rather than inspiring.