Joi Guitars


JP: Western Red Cedar, Extremely Rare Figured Brazilian Tulipwood, Plum Wood Binding, 24.9″ scale length, 12 Frets To The neck, 1 3/4″ bone nut, 2 1/4″ String Spacing, Slotted Head with Plum Head Stalk, JOI Signature Pinless Ebony Bridge, Schertler Tuners


The Ecstatic Guitar Theorem

1. Chordal Response: even and balanced chordal response 4.6
𝑑1 = ( 4.6 -n) +1 =1.6 )
2.Individual note decay as well as blended in a chord: 4.6
approx 12 sec as note ~ 13 sec with vibrato
𝑑2 = ( 4.6– n) +1 = 1.6)
3. Basic volume and presence: big mid range projection, even bass and trebles, dark and lush 4.5
𝑑3 = ( 4.5– n) +1 = 1.5)
4. Individual note separation and focus: great note separation, even focus on the E’s, thicker and more responsive mids 4.5
𝑑4 = ( 4.5– n) +1 =1.5 )
5.Systematic sustain: excellent sustain with bell like decay in warm swells 4.6
𝑑5 =(4.6 – n) +1 =1.6 )
6. Response compliance: responds quickly and maintains peripheral focus 4.3
𝑑6 =(4.3 – n) +1 = 1.3)
7. Balance and quality of tone: thick mid range with good projection as well as responsiveness, the E’s are balanced behind the mix, warm and dark tonal colours, lush sustain, great recording guitar, good energy flow 4.5
𝑑7 =(4.5 – n) +1 =1.5 )
8. Even strength and balance of each string: The A, D, G, B strings respond quickly with a good dynamic range, sweet spot seems to be fretted A notes, especially on the B string. The two E strings are balanced into the mix with a milder response. 4.2
𝑑8 = (4.2– n) +1 =1.2 )
9. Tone projection: intimate projection, fast and forward projection with open focus 4.4
𝑑9 =( 4.4– n) +1 =1.4 )
10. Dynamic Range: a large dynamic range, bell like harmonics, thick sustain, brassy to classical timbre 4.5
𝑑10 =(4.5– n) +1 =)1.5
11. Tonal bloom: fast and forward projection with open focus 4.4
𝑑11 = ( 4.4– n) +1 =1.4 )

Quality Of Tone

Quality of tone: dark symphonic swells of organic energy, rich, lush and responsive mids with a balanced bass response, well pronounced overtone series, plenty of sustain with open projection


∑𝑑 = (𝑑1+𝑑2+𝑑3+𝑑4+𝑑5+𝑑6+𝑑7+𝑑8+𝑑9+𝑑10+𝑑11)= 16.1
𝐏= ∑ 𝐅 ∕ T ∑𝐅=∑𝑑⧹𝐀
P = 16.1/ T
𝐏= 16.1 / 22 ≅ 7.3/10 ≅ 73%


This guitar was conceived in the Spring of 2015 and was finished in August 2015 under the astrological sign “Leo” the Lion. The figured Brazilian Tulip Wood is extremely rare and stunning in person. Reuben envisioned the perfect “Spring” guitar that could accompany a musician anywhere they may want to go with ease due to its size. A finally tuned musician’s tool made to withstand the rigours of touring, recording as well heavy playing.


Reuben hand crafts every inch of the guitar with his own touch and flare. There will never be two Joi guitars that are the same as Reuben accommodates the needs of the woods differently for every guitar. The body design is an original Joi design as well as the bridge. The Rosette is a refreshing design from Reuben which plays a crucial role in tying the whole piece together.


Removed of all decorations and colours it is possible to identify a prominent gender of the guitar. A way to visualize the difference may be to see the curves against the back ground as either yin or a yang. Every guitar displays a balance of both masculine and feminine elements with one weighing more heavily then the other. The slim waist line, hour glass curves as well as contoured shape of the guitar all define a female like body.

The Listening Bar

Joi Guitars: JP

All sound clips were recorded Sunday morning Feb 7 outdoors before sunrise inside a tent in the rain.