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2019 UB804 MOB 1P 01
UB804 Mahogany Oil Burst Red copyright sprite

The UB804 Upswing is a four string Upright Bass series electric bass model introduced by Ibanez for 2018. It is made in Indonesia.

The UB804 features neck through body construction with a maple body attached to a maple and walnut neck with a fretless jatoba fingerboard with offset white dot position markers. Components include a Mono-rail V bridge with 30mm string spacing and special AeroSilk piezo pickups, a plastic nut, and Ibanez tuning machines. Included with the UB804 are a custom TAMA RoadPro stand and a gig bag.

For 2022 the brand of strings included from the factory was changed.

The UB805 is a five string version.

Specifications[]

Related content: Upright Bass series | Models-icon
Specifications for UB804
Model name: UB804
Year(s) offered: 2018–2026
Sold in: Americas & Oceania / Asia & Africa / China / Europe / Japan / USA 2018–2020 / USA & Canada 2021–2026
Made in: Indonesia
Price: MSRP: US$1,239.99 (2018)[1] / US$1,515.54 (2022)[2] / US$1,584.43 (2023)[3] / 1,099 (2024)[4] • SMAP: US$1,099.99 (2022)[2] / US$1,149.99 (2023–2025)[3][5][6] / US$1,199.99 (2026)[7]
Finish(es): Black Ice Burst Low Gloss (BUL) 2021–2023; 2026 / Mahogany Oil Burst (MOB)
Body
Body type:
Solid body
Body material:
Maple
Neck joint:
Neck-thru
Bridge:
Custom MR5P Mono-rail V fixed w/ AeroSilk piezos (30mm string spacing)
Knob style:
Knurled metal dome
Hardware color:
Black matte
Neck
Neck type:
UB4
Neck material:
5-piece maple/ walnut
Scale length:
864mm / 34"
Fingerboard material:
Jatoba
Fingerboard inlays:
Offset white dot
Frets:
Fretless
Nut:
Plastic (42mm)
Machine heads:
Ibanez die-cast
String gauge (factory):
2018–2021: .045/.065/.080/.100
2022–2026: .045/.065/.080/.100 (D'Addario ECB81 flatwound)
Factory tuning:
1G,2D,3A,4E (E standard)
Electronics/ case
Electronics:
Active tone
Controls:
Volume / Tone / Trimpots on rear to adjust piezo gain
Battery:
9V
Output jack:
¼" stereo (rear mounted)
Included gig bag:
yes

Images[]

Other available finish
2021 UB804 BUL 1P 01
Black Ice Burst Low Gloss
Additional details
2021 UB804 MOB 1P 01 front
Front of body
2021 UB804 MOB 1P 01 back
Rear of body
Controls UB
Controls layout

Videos[]

Ibanez_"Upswing"_UB804_Upright_Bass_featuring_Keisuke_Torigoe
Ibanez "Upswing" UB804 Upright Bass featuring Keisuke Torigoe
Ibanez_"Upswing"_UB804_Upright_Bass_featuring_Hideyan(Calmera)
Ibanez "Upswing" UB804 Upright Bass featuring Hideyan(Calmera)
Ibanez_"Upswing"_UB804_Upright_Bass_featuring_Juan_Garcia-Herreros_(SNOW_OWL)
Ibanez "Upswing" UB804 Upright Bass featuring Juan Garcia-Herreros (SNOW OWL)


Sources[]

  1. 2018 USA winter new product catalog (p. 19)
  2. 2.0 2.1 2022 USA catalog (p. 96)
  3. 3.0 3.1 2023 USA catalog (p. 102)
  4. 2024 Europe catalog (p. 84)
  5. UB804-MOB product listing, Guitar Center (US retailer), archived July 2023
  6. UB804-MOB product listing, Guitar Center (US retailer), archived February 2025
  7. UB804-BUL product listing, Sweetwater (US retailer), archived January 2026
  • UB804-MOB (1P-01) parts list, Ibanez parts catalog, archived January 2026
  • UB804 product page, Ibanez USA, archived November 2019
  • UB804 product page, Ibanez USA, archived January 2020
  • UB804 product page, Ibanez China, archived January 2021
  • UB804 product page, Ibanez Americas and Oceania, archived June 2022
  • UB804 product page, Ibanez USA & Canada, archived January 2023
  • UB804 product page, Ibanez Japan, archived January 2024
  • UB804 product page, Ibanez Japan, archived February 2025
  • UB804 product page, Ibanez Europe, archived February 2025
  • UB804 product page, Ibanez Asia & Africa, archived January 2026