New from Cave: G4 3 channel Grunt with DI

Boutique bass guitar effects pedals that require no battery or power supply. Includes multi-channel boosters and drivers in a compact, aluminium casing with D.I. output.
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Aussie Mark
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New from Cave: G4 3 channel Grunt with DI

Post by Aussie Mark » 27 May 2011, 14:12

I received the final protoype in the mail from Heath today. The G4 name signifies that this is the 4th generation of the original Grunt, ie. Grunt - Grunt MkII - Super Grunt - G4

This pedal has three separate channels of Super Grunt circuitry, with each channel having it's own Drive, Tone and Level controls. The two footswitches are used to select the channels - one switch for channel 1, the other switch for channel 2, and both switches at the same time for channel 3.

There is a balanced DI as well.

All this, in a passive pedal that requires no batteries or external power at all. There are two mice inside the case and one treadmill - one mouse rests while the other one is running flatstick on the treadmill.

I'll play with this for a few days, maybe a week more realistically, and if there are no issues and everything is working as planned then it will be on its way on the G4 tour of duty.

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Endorsing artist: Fender; Cave Passive Pedals

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whatthekoon
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Re: New from Cave: G4 3 channel Grunt with DI

Post by whatthekoon » 27 May 2011, 15:40

Aussie Mark wrote:
I'll play with this for a few days, maybe a week more realistically, and if there are no issues and everything is working as planned then it will be on its way on the G4 tour of duty.
Wow, great to finally see this thing. Looking forward to your review. Can I please be added to the tour list?

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Nigel
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Nigel » 27 May 2011, 16:20

I'd like to be on that list too. This looks great. Can one channel essentially functrion as a mute channel?
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Aussie Mark
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Aussie Mark » 27 May 2011, 16:26

Nigel wrote:I'd like to be on that list too. This looks great. Can one channel essentially functrion as a mute channel?
I'll have to plug it in and see, but I'm guessing the answer is no - none of the other Cave pedals that have Level controls function as "0 to 10" volume control - when the Level control is all the way "off" there is still a signal.

That might be a potential tweak I can ask Heath about.

Rolling Stoned | The Volts | Doors Alive | Bonza | The Vinyl Beats

Basses: Nash, Fender, Ampeg, Cataldo, Duesenberg, Greco, Ibanez
Rig: Fender, Ampeg, PJB

Endorsing artist: Fender; Cave Passive Pedals

Cave Passive Pedals
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Cave Passive Pedals » 27 May 2011, 18:44

Hi guys
Mark, can I just jump in and say that yes, you are correct, the levels do not zero out. The reason for this is because the potentiometers required to allow zero operation are no longer manufactured. By wiring in the available pots (the levels in the G4 now) as a standard voltage divider (normal volume configuration) the signal dropped slightly compared to the rheostat design we use on all of our pedals.
Nigel, we can rewire for special orders for "mute" operation or even add a switch on one channel for mute if you'd like?
Cheers
Heath

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PilbaraBass
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Re: New from Cave: G4 3 channel Grunt with DI

Post by PilbaraBass » 27 May 2011, 19:17

a mute channel is a bit of a waste of circuitry. for me, the easiest, most effective way to achieve a mute function is to have an A/B selector pedal with the B going nowhere.

Heath, does your DI employ an isolation transformer?
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KirBass
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Re: New from Cave: G4 3 channel Grunt with DI

Post by KirBass » 27 May 2011, 20:34

Looks like an interesting pedal - I'll jump on the tour of duty too.

Dumb question...but do the three channels have different circuitry, or just allow different settings of the same circuit?

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Re: New from Cave: G4 3 channel Grunt with DI

Post by Cave Passive Pedals » 27 May 2011, 20:42

Hi PilbaraBass
The D.I. unit in the G4 is similar to the passive D.I. units that are available. So, to answer your question...yes.
Passively, I don't recall any other way of creating a D.I. circuit that works well. Trust me, we've tried all sorts of things with the G4 to save space and money, but each time there was a frequency problem or volume issue.
Cheers
Heath

Cave Passive Pedals
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Cave Passive Pedals » 27 May 2011, 20:50

Hi KirBass
We were going to have a switch to access the original Grunt (also MKII) circuit too, but Mark steered us away from that idea, thankfully! It would have been a nightmare to wire up. But that again, would have been three channels with the same options. The three channels you see on the G4 now are all B-Drives - the loudest, most overdriven circuit to date (although we do have other designs in the pipeline).
Cheers
Heath

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Rhystard
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Rhystard » 28 May 2011, 00:37

Looking great, chuck me in on any tour of duty for sure.
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Alec
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Re: New from Cave: G4 3 channel Grunt with DI

Post by Alec » 28 May 2011, 02:14

Wow, looks awesome! I would love to try this too.

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LukeWalton
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Re: New from Cave: G4 3 channel Grunt with DI

Post by LukeWalton » 28 May 2011, 07:17

I'd love to try this little beauty as well. Looks great Heath :)

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weemac
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Re: New from Cave: G4 3 channel Grunt with DI

Post by weemac » 28 May 2011, 07:22

All the fuzz and overdrive you need in one pedal. Sounds interesting!

emac.
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BassLine
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Re: New from Cave: G4 3 channel Grunt with DI

Post by BassLine » 28 May 2011, 09:53

Love to try it too Mark... Great work Heath!!

I really really loved the original Grunt Mk 1 on clean setting for an always-on sound. Can I dial in exactly the same sound on the G4? (sorry, haven't yet played the Super grunt to compare).
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wilbur88
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Re: New from Cave: G4 3 channel Grunt with DI

Post by wilbur88 » 28 May 2011, 11:20

Thanks Mark. Pls add me to the list if you could.
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