Hey guys! New to the forum, and new to audio-mods.
I've built guitar pedals and basic cabinets in the past, so I have soldering skills, and some basic DIY knowledge, but I'm a novice in the field.
I recently bought a Gemini 300 portable array, and the thing is surprisingly nice!
But it comes with the flaw of a 200hz crossover point for its subwoofer, making things a tad muddy.
I want to mod the built-in crossover to drop that frequency down to 120hz.
Downside is, I'm not sure how to go about it, as I lack the mathematic knowledge and experience on the subject.
Any suggestions?
I've built guitar pedals and basic cabinets in the past, so I have soldering skills, and some basic DIY knowledge, but I'm a novice in the field.
I recently bought a Gemini 300 portable array, and the thing is surprisingly nice!
But it comes with the flaw of a 200hz crossover point for its subwoofer, making things a tad muddy.
I want to mod the built-in crossover to drop that frequency down to 120hz.
Downside is, I'm not sure how to go about it, as I lack the mathematic knowledge and experience on the subject.
Any suggestions?
Welcome!!
A cheap-brand copy of a recent BOSE too-clever idea?
Schematic?
Find the crossover filter, make the relevant caps 200/120 times bigger (0.2uFd instead of 0.12uFd, fer example).
However I wonder if you will find that the subwoofer IS good for 200Hz, but the stick won't take 120Hz well (or for long).
A cheap-brand copy of a recent BOSE too-clever idea?
Schematic?
Find the crossover filter, make the relevant caps 200/120 times bigger (0.2uFd instead of 0.12uFd, fer example).
However I wonder if you will find that the subwoofer IS good for 200Hz, but the stick won't take 120Hz well (or for long).
Thanks!
Yeah, she's a $399 version of the Bose, but with a built-in battery pack that lasts around 9-hours(Advertised), 6-hours(Reality). ((Which is still plenty useful in its own right.)) And DOES NOT SOUND BAD. Just mushy at the bottom.
I haven't been able to find a schematic on it yet, but that doesn't mean they don't exist. It's a Gemini BT300TO-GO.
I'd imagine the stick isn't meant for anything under 200, honestly, but to stay true to the wirelessness, and clean up the mud, I think that may be my only real bet. Heck, even 150hz would be a major improvement.
I can always upgrade the upper half's speakers if need be. They're 3" drivers. Nothing terribly uncommon. But the 8" sub speaker itself isn't bad. Just seems to have too much going into it that muddies the mix.
It's no biggie for an acoustic duo, but for hip-hop artists, it's a little rough.
I run the EV Evolve 30M's for real gigs, so I'm spoiled there, but for little things on the beach, or out on a boat, the battery powered Gemini is the only real bet I have, so I'm trying to touch up the edges of what could be a really nice portable rig.
Yeah, she's a $399 version of the Bose, but with a built-in battery pack that lasts around 9-hours(Advertised), 6-hours(Reality). ((Which is still plenty useful in its own right.)) And DOES NOT SOUND BAD. Just mushy at the bottom.
I haven't been able to find a schematic on it yet, but that doesn't mean they don't exist. It's a Gemini BT300TO-GO.
I'd imagine the stick isn't meant for anything under 200, honestly, but to stay true to the wirelessness, and clean up the mud, I think that may be my only real bet. Heck, even 150hz would be a major improvement.
I can always upgrade the upper half's speakers if need be. They're 3" drivers. Nothing terribly uncommon. But the 8" sub speaker itself isn't bad. Just seems to have too much going into it that muddies the mix.
It's no biggie for an acoustic duo, but for hip-hop artists, it's a little rough.
I run the EV Evolve 30M's for real gigs, so I'm spoiled there, but for little things on the beach, or out on a boat, the battery powered Gemini is the only real bet I have, so I'm trying to touch up the edges of what could be a really nice portable rig.
Hey Mike. What you are wanting to do can be done of course. IMO finding the schematic (or Service Manual) will be the most difficult part of the project. Maybe try contacting Gemini tech support directly.
But in the mean time, you could try simply testing out all of the available pre-set DSP eq options available on the unit. Maybe one of those would be less muddy.
Gemini PA-300BT Portable Line Array Column PA Speaker System | Guitar Center
Gemini PA-300BT Portable Line Array Column PA Speaker System | Guitar Center
But in the mean time, you could try simply testing out all of the available pre-set DSP eq options available on the unit. Maybe one of those would be less muddy.
Gemini PA-300BT Portable Line Array Column PA Speaker System | Guitar Center
Gemini PA-300BT Portable Line Array Column PA Speaker System | Guitar Center
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You shouldn't have the problem if you find the right room placement for each range and set the levels.
Levels should be balanced and bass boost should be applied globally, not by upping the bass module.
Levels can't be set properly if you have poor room positions because they won't be balanced within themselves.
Levels should be balanced and bass boost should be applied globally, not by upping the bass module.
Levels can't be set properly if you have poor room positions because they won't be balanced within themselves.
It is a "stage system". Typically used for one night stands in strange venues. Often set-up under time pressure.
Room placement is more an indoor situation, which I have EV Evolve 30Ms and subs for.
I only use the Geminis outside, usually on a street corner or beach for busking and doing impromptu open mic sessions. Which is what these are really sweet for. I have an amp tech buddy who is willing to help me out, so I will post updates as they come along and as I learn things.
Finding a lead on a schematic has been a real letdown.
I only use the Geminis outside, usually on a street corner or beach for busking and doing impromptu open mic sessions. Which is what these are really sweet for. I have an amp tech buddy who is willing to help me out, so I will post updates as they come along and as I learn things.
Finding a lead on a schematic has been a real letdown.