Keeley Bassist vs. Duncan Studio Bass..or...top jack compressors?

mmbongo

I have too many basses.
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Aug 5, 2009
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I love my Keeley Bassist. I really really do. It's the best compressor I've used for...I guess what you'd call peak limiting...evening things out so all the notes are the same level. I'll always have one on my main board.

But I'm changing my secondary board around, which is a Nano, and I may need something with top jacks to make everything fit. So has anyone compared these two for peak limiting? Also open to other top jack compressors. I tried an Aguilar TLC and it could not dethrone the Keeley. Some type of metering is a 100% must.
 
Whatever choice you wind up making, please don't sacrifice one single bit of what you seek out of a comp, both sonically and functionally, just so you can have the form factor/convenience of top jacks...or maybe start considering exactly what it is you're willing to let go to in order to have them? I'll be interested to see some of the recommendations and I wish you luck on your quest!
 
Whatever choice you wind up making, please don't sacrifice one single bit of what you seek out of a comp, both sonically and functionally, just so you can have the form factor/convenience of top jacks...or maybe start considering exactly what it is you're willing to let go to in order to have them? I'll be interested to see some of the recommendations and I wish you luck on your quest!

You are correct, and judging by the stunning number of recommendations it looks like nothing touches the Keeley :)
 
I love my Keeley Bassist. I really really do. It's the best compressor I've used for...I guess what you'd call peak limiting...evening things out so all the notes are the same level. I'll always have one on my main board.

But I'm changing my secondary board around, which is a Nano, and I may need something with top jacks to make everything fit. So has anyone compared these two for peak limiting? Also open to other top jack compressors. I tried an Aguilar TLC and it could not dethrone the Keeley. Some type of metering is a 100% must.

I tried the MXR 87, Empress, Hypergravity and Studio Bass and chose the latest to fill my requirements ... small footprint, battery powered, dry blend and some subjective punch/sustain. But it has no metering and not too sure about peak limiting because of the slow attack though the ratio goes to 20:1 ...
 
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I haven't used the Keeley, but the Duncan replaced a Smoothie. It offered some of the same tone magic with top jacks. I used it for evening out notes, not limiting, so I'm not sure it'll do what you want. Now I have a Madbean 4:1 I built into a 1590B with top jacks that I like just as much as the Duncan, but my comp needs are simple.
 
One to consider even though it has different goals than the Keeley is the Cali76 Compact Bass. It has the top jacks you're after, although it's a pretty long pedal by the time you add cables and measure from the butt end of the cables to the pedal housing down by the footswitch. It might not fit on your Nano board, but it could be worth a look regardless.
 
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I have used both, sorta: Keeley GC-2. It was better at peak limiting to me than the Studio Bass. I also found it more transparent. While the Studio Bass is pretty transparent, it added a little thickness that changed how distortion reacted. In a way that wasn't bad at all, just not how I wanted.
 
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Anybody had the chance to compare the Keeley to the MXR m87 purely for peak limiting ?
On paper the MXR is superior for that application : ultrafast attack and release times (20us / 50ms), but the Keeley unit uses an unusual adaptative type of setting that does not tell me exactly how reactive it is going to be :
"Bottom line: Attack and Release times vary on rPogram content. Attack times are generally speaking, about 100 times faster than release times. Attack Time: typically 15ms for 10dB, 5ms for 20dB, 3ms for 30dB Release Time: typically 8ms for 1dB, 40ms for 5dB, 80ms for 10dB, 160ms for 20dB, 240ms for 30dB" (from the user manual)
 
Anybody had the chance to compare the Keeley to the MXR m87 purely for peak limiting ?
On paper the MXR is superior for that application : ultrafast attack and release times (20us / 50ms), but the Keeley unit uses an unusual adaptative type of setting that does not tell me exactly how reactive it is going to be :
"Bottom line: Attack and Release times vary on rPogram content. Attack times are generally speaking, about 100 times faster than release times. Attack Time: typically 15ms for 10dB, 5ms for 20dB, 3ms for 30dB Release Time: typically 8ms for 1dB, 40ms for 5dB, 80ms for 10dB, 160ms for 20dB, 240ms for 30dB" (from the user manual)

I didn't like the MXR at all. I forget what exactly it was other than the general sound, but I couldn't wait to get back to using my Keeley.
 
I own the Duncan Doubleback which is predecessor to the Studio (same pedal, smaller box). I also own the Keeley Bassist and a GC2. Either Keeley wins hands down, much more quiet and transparent than the Duncan and easier to configure on the fly during the gig. The Duncan isn't bad, its just the Keeley is sounds better to me in direct A/B comparison, and it's made in the USA. Keeley has awesome customer support too.
 
I tried the MXR 87, Empress, Hypergravity and Studio Bass and chose the latest to fill my requirements ... small footprint, battery powered, dry blend and some subjective punch/sustain. But it has no metering and not too sure about peak limiting because of the slow attack though the ratio goes to 20:1 ...

Anything above a 10:1 ratio is considered limiting but a slow attack time would certainly negate true peak limiting.
 
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Curious how the Keeley Bassist users in this thread are typically setting the blend knob?

I've used some comps that had separate controls for wet/dry signals, and I found that setting them to similar levels (for unity gain) resulted in some over-exaggerated lows/thickness at the expense of things sounding less even further up the neck. Almost like the first and second position, particularly on E & A, sounded super fat with the combined signals, but moving up the neck that thickness wasn't as pronounced. So the difference in volume and balance was accentuated. Ultimately, I had to go 80-90% compressed signal with just a touch of dry signal for dynamics in order to get the balance I wanted across the fretboard...
 
Curious how the Keeley Bassist users in this thread are typically setting the blend knob?

I've used some comps that had separate controls for wet/dry signals, and I found that setting them to similar levels (for unity gain) resulted in some over-exaggerated lows/thickness at the expense of things sounding less even further up the neck. Almost like the first and second position, particularly on E & A, sounded super fat with the combined signals, but moving up the neck that thickness wasn't as pronounced. So the difference in volume and balance was accentuated. Ultimately, I had to go 80-90% compressed signal with just a touch of dry signal for dynamics in order to get the balance I wanted across the fretboard...
I am not sure that the Keeley Bassist has a blend feature ? Did you mean SDuncan Studio Bass ?
In which case, the blend give you the option to choose what frequency to blend, low/mid/full and also like you I realized that depending on the sound I want to get, one doesn't need to blend at similar proportion, unity gain with bypass is achieved with the level knob.
 
Adding my voice to the SD Studio Bass love - it's the first compressor that 100% fits my setup, and it's always on for me. Absolutely love the blend feature and the attack knobs - I adjust attack slightly when switching between my Jazz & fretless, and sometimes flip the blend from Low to mids as songs demand.

Never played the Bassist but heard it's great - I tried out the Keeley Compressor Pro and I honestly had a bit of a hard time finding a good setting for me. I think it was just too transparent! It'd probably be much more useful if I was still playing active basses and slapping more.

A lot of people dig that transparency but I like my compressor to add a bit of warmth and sustain to my setup.
 
I’ve had both keeley and the Duncan studio. I use compressor to just even out and smooth signal. The keeley won. I think best feature of the keeley, as others have mentioned, is the simplicity of it and how easy it is to get a great sound.

Of the compressors I have tried I would rank them:
1. Keeley bassist
2. Smoothie
3a. Seymour Duncan studio
3b. Aguilar tlc
5. MXR compressor

Tried milk box and lmb too. Milk box was too noisy for me and lmb was good value for money