Over 25 years ago, the SR established Ibanez as the leader in innovative bass building. Throughout the years, Ibanez made fretless versions of this classic for a limited number of esteemed Ibanez artists. Now, the Ibanez Bass Workshop makes this much sought after option available to SR players everywhere with the introduction of the SR Portamento.
The SR Portamento offers a rosewood fingerboard that extends the length of the standard SR neck to a hefty 30-fret length. Several years in the making, the SR Portamento's new AeroSilk piezo system delivers an uncanny touch of hollow-bodied openness, and realizes the innovative Upright Double Bass sound to blend into the mix that both inspires and redefines the role of the solid body bass.
30 Fret Neck
The SR Portamento features an extended 30-fret Rosewood fretboard for playing in upper registers usually only accessible on an upright.
5pc SR Maple/Bubinga Thru-Neck
The SR Portamento features 5-piece Maple/ Bubinga thru-neck for increased sustain and superior tone.
Piezo Level Control
On the back of the SR Portamento are recessed controls assigned to each individual string to control the volume of the Ibanez-exclusive AeroSilk Piezo pickup. Perfect string balance and response can be achieved by adjusting the volume to accommodate different string gauges.
Custom bridge for AeroSilk Piezo System
The Custom bridge is created specifically for the optimum performance of the AeroSilk Piezo pickup system. Unique plastic saddles were designed to work in concert with the piezo pickups and enhance the acoustic "stand-up" quality of the sound.
Bartolini MK-1 Pickups
The MK-1 pickups are a split coil design that provides a very wide frequency range and enhanced definition for maximum accuracy. The Neck and bridge pickups have equal response, like traditional single coils, but without the hum and noise.
AeroSilk Piezo system w/Active tone control
The EQ section incorporates the controls of the Bartolini pickups with the AeroSilk Piezo system. Controls include a neck volume, bridge volume and bass & treble controls for the Bartolini MK-1 pickups and a Master volume and a tone control for the Piezo system.
Solid body bass
Rosewood fingerboard with 30-fret length
AeroSilk piezo system for realistic acoustic tones
Case sold separately
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SRF700 Portamento 4-String Fretless Electric Bass
neck type: SRF5 5pc Maple/Bubinga neck-thru
body: Mahogany wing body
fretboard: Rosewood fretboard
bridge: Custom bridge for AeroSilk Piezo system
neck pu: Bartolini MK-1 neck pu (Passive)
bridge pu: Bartolini MK-1 bridge pu (Passive)
equaliser: Ibanez 2-band eq
hardware color: Cosmo blackNeck Dimensions
Width at Nut 38mm
Width at Last Fret 62mm
Thickness at 1st 21.5mm
Thickness at 12th 23.5mm
Custom Guitar's Friend Gold Coverage
Gold Coverage goes above and beyond the manufacturer's warranty to protect your gear from unexpected breakdowns, accidental damage from handling
and failures. This plan covers your product for one, two, three or up to five years from your date of purchase, costs just pennies per day and gives you a
complete "no-worry" solution for protecting your investment.
Gold Coverage Includes:
Unexpected and unintentional spills, drops and cracks
Normal wear and tear
Dust, internal heat and humidity
Other plan features include:
For products over $200, No Lemon Policy applies. If it fails for the same defect 3 times, it is replaced on the 4th breakdown. (Does not apply to failures due to drops, spills, and cracks)
For products under $200 experiencing the above failures, a Custom Guitar's Friend gift card will be issued for the full price of the product + tax.
Shipping fees covered if required for repair or replacement
Plans are transferable in the event merchandise is sold
Plans are renewable on new gear
*Limitations and exclusions apply. See terms and conditions for program details
Term for New Gear begins on date of purchase but does not replace the store return policy or manufacturer coverage.
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I've had this bass for long enough now to really be able to review it properly. It is my favorite fretless by far both in feel and sound. It plays like butter, and has almost unlimited sustain. I can make sounds on this bass using only my fingers with the piezo pickup that almost sound like a bowed upright, the sustain is that long. There were some minor cosmetic flaws in the bass I received, so quality control isn't at the top of their game at the Indonesian factory, but the design pulls it through. The 30 fret length fingerboard takes a bit of extra practice but the extra cutaway makes it possible to use if you are willing to woodshed the extra hours needed to master it. I have three other fretless basses along with some very expensive high end fretted basses - this is my favorite bass, and that says a lot. This bass isn't just an upright substitute - the Bartolini's give you a full range of useful sounds - I can even slap on this bass, although the extra long fretboard requires some modification of technique.
Ibanez SRF700 Portamento 4-String Fretless Electric Bass Flat Brown Burst Rosewood Fretboard