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The Official 7-String Bass Club.

Sounds like a very cool build, @Opherman47 !

I think 16mm will be great for the string spacing.

What kind of tuning are you planning to use?
I plan on tuning B, e, a, d, g, b, e.

I Play double bass and electric Bass and I find that four strings and five strings are fine... But contact shifting on a sixth string to six string guitar which I play in gig a lot of for jazz is just trippy.

Would love recommendations on strings and stuff as well.
 
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I plan on tuning B, e, a, d, g, b, e.

I Play double bass and electric Bass and I find that four strings and five strings are fine... But contact shifting on a sixth string to six string guitar which I play in gig a lot of for jazz is just trippy.

Would love recommendations on strings and stuff as well.
I tune the same, I ordered my first 5 string in 1990 with a high B because I had been playing guitar for a few years to teach myself chord and lead theory to use on bass. I was looking to fill out my original prog & jazz adjacent original power trio stuff... and the internet didn't exist to tell me that 'bass needs its own special tuning that goes against the rest of the instrument family!' :p


I ended up switching to a 6 string set of TI Jazz Rounds with a .020w nickle string from Curt Mangan on mine this year after a lifetime of only using stainless rounds. I had used custom CM sets for a while prior... 120-90-70-50-35-25-20w but slowly ended up switching all my other basses to TI strings and the 7 (my main bass) was the last to switch. I use 19mm spacing on all my basses, 7 included. I play fingerstyle and some slap... rarely with a pick and never tap, so I appreciate the standard room between.
 
I tune the same, I ordered my first 5 string in 1990 with a high B because I had been playing guitar for a few years to teach myself chord and lead theory to use on bass. I was looking to fill out my original prog & jazz adjacent original power trio stuff... and the internet didn't exist to tell me that 'bass needs its own special tuning that goes against the rest of the instrument family!' :p


I ended up switching to a 6 string set of TI Jazz Rounds with a .020w nickle string from Curt Mangan on mine this year after a lifetime of only using stainless rounds. I had used custom CM sets for a while prior... 120-90-70-50-35-25-20w but slowly ended up switching all my other basses to TI strings and the 7 (my main bass) was the last to switch. I use 19mm spacing on all my basses, 7 included. I play fingerstyle and some slap... rarely with a pick and never tap, so I appreciate the standard room between.
I spend a lot of time in college on classical guitar as well as popular styles.. although I gig a lot of double bass and bass because I can read and know a lot of tunes. I'm not super interested in slap outside of my four or five string. Happy to pick but mainly I'm finger style.
 
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I spend a lot of time in college on classical guitar as well as popular styles.. although I gig a lot of double bass and bass because I can read and know a lot of tunes. I'm not super interested in slap outside of my four or five string. Happy to pick but mainly I'm finger style.


That first extended range bass I bought was a Carvin LB75 (had to send them the strings and have them cut the nut / set it up for the High B)... I loved it, but when I switched to a 70s P bass or 80s Ibanez 4 string for some tunes I found myself stumbling over the different string spacing. So when I ordered my 6 string fretless and 7 string fretted 20 years ago, I specified the 19mm spacing at the bridge, pretty sure the builders did whatever their nut spacing was, never checked it never noticed with my fretting hand.

Your build looks killer, I might be finally getting another 7 sometime in the near future, been chatting with Scott Surine about one of his maybe.
 
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I tune the same, I ordered my first 5 string in 1990 with a high B because I had been playing guitar for a few years to teach myself chord and lead theory to use on bass. I was looking to fill out my original prog & jazz adjacent original power trio stuff... and the internet didn't exist to tell me that 'bass needs its own special tuning that goes against the rest of the instrument family!' :p


I ended up switching to a 6 string set of TI Jazz Rounds with a .020w nickle string from Curt Mangan on mine this year after a lifetime of only using stainless rounds. I had used custom CM sets for a while prior... 120-90-70-50-35-25-20w but slowly ended up switching all my other basses to TI strings and the 7 (my main bass) was the last to switch. I use 19mm spacing on all my basses, 7 included. I play fingerstyle and some slap... rarely with a pick and never tap, so I appreciate the standard room between.

IME strings are so bass-specific. I loved DR Sunbeams for several of my basses, and still do for one, but they don't have the characteristics (tension, timbre, longevity) I want on others. For my 7-string, also use the Curt Mangan .020 for the high string (I tune mine to F, but). His strings are quality, easy to purchase, and affordable IMO. I've tried a couple of different full CM sets, but ultimately my ERBs respond best to Skjold Hybrids, so I buy Pete's 6 string set and just put a Curt Mangan on top of my 7.
 
IME strings are so bass-specific. I loved DR Sunbeams for several of my basses, and still do for one, but they don't have the characteristics (tension, timbre, longevity) I want on others. For my 7-string, also use the Curt Mangan .020 for the high string (I tune mine to F, but). His strings are quality, easy to purchase, and affordable IMO. I've tried a couple of different full CM sets, but ultimately my ERBs respond best to Skjold Hybrids, so I buy Pete's 6 string set and just put a Curt Mangan on top of my 7.

CM makes some great strings, no dislike at all... I had a 12+ year old pair of La Bella flats on my fretted 5 that I just wasn't digging, and CM stainless on everything else. I loved the tone of some players I knew with Jazz Flats so I gave them a spin on it, within a month or 2 I had a set on my fretless 6 too (OMG did it wake that bass up, I play it almost as much as my 7 since putting them on fwiw, I tune it B-b). Then I recall a guy with killer tone from here on TB that use to post looking for old dead TI Jazz Rounds, so I gave them a shot (new set) on my old Ibanez RB924, within a week had a set on my Guild Starfire AND reached out to TI about 7 string sets.

So now I buy just single strings from CM since TI came back with a polite 'Nope'. Now everything has TI on them flat or round and they are working for me :)
 
Could use some input.... So I am having this bass built.
What strings do you recommend? Also is the 16mm going to be too narrow? It will be 62mm at the nut. Any other thoughts that you might have? They start the build later this month .

Swan omicron infinity 7 string
- body mahogany
- top walnut burl
- neck flame toasted maple 3pz satin or oil finish
-fingerboard ebony
- scale 31
- 26 fret (may go to 28 fret, why not it can fit lol)
- compound radius 30’ to 40
- preamp Mike pope 4-band A/P
- pickups hand made (I think he is doing those lakeside pickups... not sure)
- full ramp ebony squared
- bridge riviera
-string spacing 16mm
- dot abalone
- nut brass
-all hardware black
- case swan
- matching headstock
- back headstock ebony
- logo abalone
Why the 31" scale? Just curious.

I'll try to keep this short - I have a Conklin 9 string that has 19mm spacing, a Bill Dickens at 16mm, and a Galveston 8 string unpaired bass that has 13.5 spacing. All are 34" scale.

I'm fine with 34" scale length but would also like 35" as it tightens things up a bit; helps with picking in the Christian metal band I'm in. I've been playing the 9 on my worship team and it's too wide - 16mm would have been better, or 17mm. I'm used to the Bill Dickens but now I feel like I'm missing a string or two up top. :laugh:

I like using the 8 string with the metal band as it's easy to transition from string-to-string but the spacing messes with my muscle memory when going between different basses. My main bass with that band is a custom 5er w/19mm spacing. If I could, I'd probably have them all at 17mm and either 34 or 35" scale length as that would simplify things.

I can slap on the Bill Dickens as I'm used to it now; takes a little more attention to detail on the Galveston with the narrow spacing. The 9 string is easy - but again, muscle memory screws me up. Been trying to play it a lot more though.
 
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That first extended range bass I bought was a Carvin LB75 (had to send them the strings and have them cut the nut / set it up for the High B)... I loved it, but when I switched to a 70s P bass or 80s Ibanez 4 string for some tunes I found myself stumbling over the different string spacing. So when I ordered my 6 string fretless and 7 string fretted 20 years ago, I specified the 19mm spacing at the bridge, pretty sure the builders did whatever their nut spacing was, never checked it never noticed with my fretting hand.

Your build looks killer, I might be finally getting another 7 sometime in the near future, been chatting with Scott Surine about one of his ma

Why the 31" scale? Just curious.

I'll try to keep this short - I have a Conklin 9 string that has 19mm spacing, a Bill Dickens at 16mm, and a Galveston 8 string unpaired bass that has 13.5 spacing. All are 34" scale.

I'm fine with 34" scale length but would also like 35" as it tightens things up a bit; helps with picking in the Christian metal band I'm in. I've been playing the 9 on my worship team and it's too wide - 16mm would have been better, or 17mm. I'm used to the Bill Dickens but now I feel like I'm missing a string or two up top. :laugh:

I like using the 8 string with the metal band as it's easy to transition from string-to-string but the spacing messes with my muscle memory when going between different basses. My main bass with that band is a custom 5er w/19mm spacing. If I could, I'd probably have them all at 17mm and either 34 or 35" scale length as that would simplify things.

I can slap on the Bill Dickens as I'm used to it now; takes a little more attention to detail on the Galveston with the narrow spacing. The 9 string is easy - but again, muscle memory screws me up. Been trying to play it a lot more though.
as for the short scale i have a bunch of 4 and 5 strings at 34"... really happy with the tones i get there (mainly fenders and a Brubaker jazz 5 string), but the tone isn't there for what i want to do with this one. On shorter scale bass the tone is more consistent from top to bottom, although this is on the smaller end of a medium scale Bass ( see this clip on the pro's ), also shorter scale length helps with chordal stuff. the type of music i plan on playing with this is more in line with moto fukishima (who plays 33" , ) and tony grey (who plays a 30.75" on his headless fodera ),
 
the type of music i plan on playing with this is more in line with moto fukishima

Love his playing! Only time I would consider anything longer than 34" scale length is if I started doing the current metal flavor stuff (which I won't). My 7 is 34" scale and I use very light strings... sounds killer in my opinion. I have 2 30" scale 4 string basses and would definitely consider it for an extended range instrument.
 
Hey guys, I purchased a BTB7 a while back. I live on the Gulf-coast of Florida and gig regularly outside. I noticed the stock D'Addario strings beginning to rust very quickly. I've had strings rust on me in the past, if I didn't play an instrument for a while, but this was one of my go-to basses. Anyway...
I need to get new strings for it, I'd rather not have to purchase strings regularly and was wondering if anyone could suggest perhaps some flat-wounds or tape-wounds that would fit the bill?
 
Hey guys, I purchased a BTB7 a while back. I live on the Gulf-coast of Florida and gig regularly outside. I noticed the stock D'Addario strings beginning to rust very quickly. I've had strings rust on me in the past, if I didn't play an instrument for a while, but this was one of my go-to basses. Anyway...
I need to get new strings for it, I'd rather not have to purchase strings regularly and was wondering if anyone could suggest perhaps some flat-wounds or tape-wounds that would fit the bill?
Are flats/tapes a requirement? I wonder how Kalium stainless string would work for you. Although I’m also in FL, I play indoors the majority of the time. They last me 2-3 years or longer depending on how much play time I have on them, when DR’s would go dead in 3-4 months.
 
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Just wanted to check in and say hello and see how the seven stringers are doing. I’m hoping to join the club in 2026 and have been eyeing the BTB747s given I’m a big Ibanez fan and they seem to check most of the boxes for me (weight, spacing, fretboard, electronics). I just missed a good one on Reverb but might have a decent local deal….although it’s a bit heavier than I’d like (12lbs) and had Jatoba instead of Rosewood….so I’m on the fence. I’ll likely still check it out given how close it is.
 
I wound up being completely surprised yesterday with a Harley Benton BZ-7000! After unboxing I’m quite impressed with the quality/value these are….definitely echoing the sentiments others. I’m excited to get to work on the adventure exploring this instrument will be.

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