Sandberg Basses TT5 40th Anniversary Green Line Matt Aluminium

TT5 40th Anniversary Green Line Matt Aluminium

Sandberg turned forty this year, and they marked it the way a workshop full of bass players would: by building a handful of special instruments for the birthday party in Germany. No two of them were alike — different models, different finishes, different ideas — and they weren’t simply put on a price list. They were offered by lottery. This TT5 is one of those basses. There is exactly one of it, and it’s here.

What makes it this one is the finish. Matt Aluminium covers the body, the face of the headstock and the pickguard and control plate, with silver pickup covers and chrome hardware finishing the job, so the whole front of the instrument reads as a single piece of brushed metal. The only interruption is the fingerboard: a slab of black ebony with no dots or blocks on the face at all, just side markers for the player. Turn it over and the natural maple neck is the one warm thing on the bass. It’s a very deliberate, very clean design, and photos make it look colder than it is in the room — the matt surface picks up light softly rather than mirroring it.

Body, Neck & Woods

The body is alder, and it’s the correct wood for a bass built around two single coils. Alder is the most even-handed timber in this family: a firm, fast low end that doesn’t bloom, a midrange that sits far enough forward to hold a line against loud guitars, and a top end that stays open without turning brittle. It doesn’t stamp much character of its own onto the sound the way ash scoops it or mahogany thickens it — it gets out of the way, so what you hear is the pickups and the neck rather than the lumber.

This is also a Green Line instrument — you’ll find the name on the back of the headstock. Green Line is Sandberg’s lower-impact way of building: environmentally conscious production, and timber chosen with its character left in — mineral marks, streaks and colour variation that a cosmetic grading would normally reject, even though they have no effect on how the wood sounds or holds up. You can see it on the back of this neck, where the maple carries a few small dark flecks. We like that. It’s an honest piece of wood on a bass that otherwise looks like it was machined, and Sandberg plant a tree in the Harz mountains for every Green Line instrument they sell.

The neck is maple, bolted on with six screws rather than the usual four. That extra pair isn’t decoration: it spreads the clamping load across the heel, keeps the joint from working loose over years of seasonal movement, and couples neck to body more tightly, which you hear as a firmer fundamental and a little more sustain. It’s carved to a C profile — full enough to fill your hand, not so deep that it slows you down — with a smooth satin back that stays fast when the room gets hot.

The fingerboard is ebony, and on this bass it does two jobs. Visually it’s the black line through all that silver. Sonically, ebony is the hardest and densest of the usual fingerboard woods, so the attack is quick and precise, the note speaks immediately and the top end has a clean, articulate edge — exactly what you want on a bass you can drop into fully passive, because there’s no preamp waiting to add clarity back in. There are 22 frets in 2.7 mm wire over a 14″ radius, flatter than a vintage Jazz board, so you can set the action genuinely low without the upper register choking out. The 34″ scale and 44.6 mm nut keep the five-string feeling like a Jazz bass rather than a wide-necked instrument you have to negotiate.

Electronics, Sound & Feel

Under the silver covers the pickups are Delano JMVC single coils in both positions, made in Germany. Delano wind tighter and more consistently than most, and the JMVC is their reading of the classic Jazz single coil rather than a modern reinvention of it: even output right across the five strings, a vocal midrange with real growl in it, and a top end with air rather than hiss. Solo the neck pickup and you get round, fat, almost P-adjacent weight. Solo the bridge and you get the nasal, mid-forward bark that cuts through a horn section without touching an EQ. Open both and the coils hum-cancel each other into the scooped, springy both-pickups sound that has carried more records than anyone can count.

The four knobs are Volume, Balance, Treble and Bass, running a Sandberg 2-band EQ — and the whole preamp switches out, dropping the bass into fully passive operation with a passive tone control. That’s not a gimmick you use once. Active, you have boost and cut at both ends: enough treble to make a fresh set of rounds sing for slap, enough bass to fill out a sparse trio without leaning on the amp. Passive, the battery leaves the signal path entirely, the output softens, and you get the slightly compressed, springy response that only a passive Jazz bass has. Two genuinely different instruments in one — and if the battery dies mid-set it costs you a knob rather than the gig.

The fifth string is where the build quality earns its keep. A low B on a 34″ scale only works if the neck is stiff, the joint is tight and the bridge has mass under the saddles, and all three are true here — the B is firm and pitched rather than woolly, and it tracks cleanly when you dig in. Sandberg’s own bridge adjusts string spacing between 18 and 19.5 mm, so you can set the strings where your right hand actually wants them, and the lightweight tuners keep mass off the headstock so the bass hangs level on a strap over a long set.

Who is it for? Someone who wants a working five-string Jazz-format bass — this is a TT5 through and through, with everything that makes that model a safe choice for any gig — and who also wants to own something nobody else has. Anniversary instruments tend to be either wall-hangers or regular models with a badge on them. This is neither: it’s a properly original design, built once for Sandberg’s 40th birthday, and it’s meant to be played. It ships in the Sandberg gigbag.