Tension comparison chart for guitar and bass • Rotosound Music Strings

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Electric Guitar

Ultramag
Powerful Type 52 Alloy

Rotos
Industry Standard Nickel Plated

Pure Nickels
Smooth Tone and Feel

British Steels
Classic Stainless Steel

Darkzone
Designed For Drop Tuning

Top Tape
Monel Flatwound

Signature Sets
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Bass Guitar

Ultramag Bass
Type 52 Alloy Roundwound

Bronze Bass 44
Phosphor Bronze Acoustic

Solo Bass 55
Stainless Steel Pressurewound

Swing Bass 66
Stainless Steel Roundwound

Dropzone 66
Designed For Drop Tuning

Funkmaster 66
Made For Slap Bass

Jazz Bass 77
Monel Flatwound

Tru Bass 88
Black Nylon Tapewound

Nexus Bass
Coated For Extended Life

Roto Bass
Nickel Roundwound

Signature Sets
Custom Gauges From Iconic Players

Acoustic

Nexus Acoustic
Coated For Extended Life

Jumbo King
Phosphor Bronze

Tru Bronze
80/20 Bronze

Super Bronze
Contact Core Design

Superia Classical
Nylon Classical Guitar

Bronze Bass 44
Phosphor Bronze Acoustic

Traditional

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Violin

Viola

Cello

Double Bass

Banjo

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Strings
Electric Guitar

Ultramag
Powerful Type 52 Alloy

Rotos
Industry Standard Nickel Plated

Pure Nickels
Smooth Tone and Feel

British Steels
Classic Stainless Steel

Darkzone
Designed For Drop Tuning

Top Tape
Monel Flatwound

Signature Sets
Custom Gauges From Iconic Players

Bass Guitar

Ultramag Bass
Type 52 Alloy Roundwound

Bronze Bass 44
Phosphor Bronze Acoustic

Solo Bass 55
Stainless Steel Pressurewound

Swing Bass 66
Stainless Steel Roundwound

Dropzone 66
Designed For Drop Tuning

Funkmaster 66
Made For Slap Bass

Jazz Bass 77
Monel Flatwound

Tru Bass 88
Black Nylon Tapewound

Nexus Bass
Coated For Extended Life

Roto Bass
Nickel Roundwound

Signature Sets
Custom Gauges From Iconic Players

Acoustic

Nexus Acoustic
Coated For Extended Life

Jumbo King
Phosphor Bronze

Tru Bronze
80/20 Bronze

Super Bronze
Contact Core Design

Superia Classical
Nylon Classical Guitar

Bronze Bass 44
Phosphor Bronze Acoustic

Traditional

Ukulele

Violin

Viola

Cello

Double Bass

Banjo

Bouzouki

Mandolin
Accessories

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Strings
Electric Guitar

Ultramag
Powerful Type 52 Alloy

Rotos
Industry Standard Nickel Plated

Pure Nickels
Smooth Tone and Feel

British Steels
Classic Stainless Steel

Darkzone
Designed For Drop Tuning

Top Tape
Monel Flatwound

Signature Sets
Custom Gauges From Iconic Players

Bass Guitar

Ultramag Bass
Type 52 Alloy Roundwound

Bronze Bass 44
Phosphor Bronze Acoustic

Solo Bass 55
Stainless Steel Pressurewound

Swing Bass 66
Stainless Steel Roundwound

Dropzone 66
Designed For Drop Tuning

Funkmaster 66
Made For Slap Bass

Jazz Bass 77
Monel Flatwound

Tru Bass 88
Black Nylon Tapewound

Nexus Bass
Coated For Extended Life

Roto Bass
Nickel Roundwound

Signature Sets
Custom Gauges From Iconic Players

Acoustic

Nexus Acoustic
Coated For Extended Life

Jumbo King
Phosphor Bronze

Tru Bronze
80/20 Bronze

Super Bronze
Contact Core Design

Superia Classical
Nylon Classical Guitar

Bronze Bass 44
Phosphor Bronze Acoustic

Traditional

Ukulele

Violin

Viola

Cello

Double Bass

Banjo

Bouzouki

Mandolin
Accessories

Capos

Stands

Care Products

Straps

Effects Pedals

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Tension comparison chart

Electric Guitar

Acoustic guitar

Bass Guitar

Electric Guitar

Tensions calculated for concert pitch at 25.25 inch scale

SET	NOTE	SINGLE	TENSION (LBS)	TOTALS (LBS)
R8	E	NP008	4.57
	B	NP011	10.26
	G	NP014	9.7
	D	NC022	13.6
	A	NC030	14.25
	E	NC038	12.02	64.4


R9/BS9/PN9/UM9	E	NP009	9.14
	B	NP011	10.26
	G	NP016	14.53
	D	024W	16.3
	A	032W	15.31
	E	042W	14.28	79.82
R9-7	B	052W	12.03	91.85


RH9	E	NP009	9.14
	B	NP011	10.26
	G	NP016	14.53
	D	026W	18.86
	A	036W	18.81
	E	046W	17.71	89.31


R10/BS10/PN10/UM9	E	NP010	13.7
	B	NP013	12.84
	G	NP017	16.16
	D	026W	18.86
	A	036W	18.81
	E	046W	17.71	98.08
R10-7	B	056W	14.88	112.96


R10-8	E	NP010	13.7
	B	NP013	12.84
	G	NP017	16.16
	D	030W	26.26
	A	042W	25.98
	E	054W	24.59
	B	064W	20.2
	F#	074W	13.53	126.49


RH10	E	NP010	13.7
	B	NP013	12.84
	G	NP017	16.16
	D	030W	26.26
	A	042W	25.98
	E	052W	21.43	116.37

R11/BS11/PN11/UM11	E	NP011	18.28
	B	NP014	17.95
	G	NP018	17.79
	D	028W	21.76
	A	038W	21.38
	E	048W	18.28	115.44
R11-7	B	058W	15.39	130.83


R12	E	NP012	22.89
	B	NP016	20.52
	G	NC024	28.45
	D	032W	27.56
	A	042W	25.98
	E	052W	21.43	146.83


R12-56	E	NP012	22.89
	B	NP016	20.52
	G	NP024	28.45
	D	032W	27.56
	A	044W	28.02
	E	056W	26.04	153.48


R12-60	E	NP012	22.89
	B	NP016	20.52
	G	NP020	22.63
	D	034W	32.63
	A	046W	30.99
	E	060W	29.13	158.79


R13	E	NP013	27.42
	B	NP017	25.65
	G	NC026	35.56
	D	034W	32.63
	A	044W	28.02
	E	054W	24.59	173.87


R30SL	E	NP009	9.14
	E	NP009	9.14
	B	NP012	12.84
	B	NP012	12.84
	G	NP009	12.9
	G	NP020	22.63
	D	NP012	18.16
	D	026W	19.95
	A	020W	28.5
	A	036W	18.8
	E	026W	23.77
	E	046W	17.71	206.38

R30EL	E	NP010	13.7
	E	NP010	13.7
	B	NP014	17.95
	B	NP014	17.95
	G	NP010	19.27
	G	NC022	23.83
	D	NP014	25.05
	D	028W	21.76
	A	NC022	30.03
	A	038W	21.38
	E	028W	26.89
	E	048W	18.28	249.79

RS200	E	NP012	22.89
	B	NP016	20.52
	G	024FW	28.65
	D	032FW	27.59
	A	042FW	26.43
	E	052FW	25.8	151.88

Acoustic guitar

Tensions calculated for concert pitch at 25.25 inch scale

SET	NOTE	SINGLE	TENSION (LBS)	TOTALS (LBS)
JK9	E	NP009	9.14
	B	NP013	12.84
	G	NP018	17.79
	D	026W	19.95
	A	038W	25.45
	E	048W	21.7	106.87


JK10/SB/TB/NXA	E	NP010	13.44
	B	NP014	15.39
	G	020W	23.78
	D	028W	26.67
	A	040W	25.46
	E	050W	21.94	126.68


JK11/SB/TB/NXA	E	NP011	18.28
	B	NP015	20.5
	G	022W	27.4
	D	030W	28.14
	A	042W	30.05
	E	052W	25.4	149.77


JK12/SB/TB/NXA	E	NP012	22.89
	B	NP016	20.52
	G	024W	32.32
	D	032W	30.46
	A	044W	31.03
	E	054W	27.42	164.64


JK13	E	NP013	27.42
	B	NP017	25.65
	G	026W	33.8
	D	034W	33.36
	A	046W	34.62
	E	056W	29.25	184.1


JK30EL	E	NP010	13.44
	E	NP010	13.44
	B	NP014	15.39
	B	NP014	15.39
	G	NP008	3.6
	G	024W	32.32
	D	NP12	18.16
	D	030W	28.14
	A	NP018	22.4
	A	040W	25.46
	E	028W	31.99
	E	048W	21.44	241.17


JK30SL	E	NP009	9.14
	E	NP009	9.14
	B	NP012	12.47
	B	NP012	12.47
	G	NP009	12.9
	G	020W	23.78
	D	NP012	18.16
	D	026W	19.95
	A	NP020	28.11
	A	036W	20.44
	E	026W	24.74
	E	046W	19.05	210.35


JK30L	E	NP011	18.28
	E	NP011	18.28
	B	NP014	15.39
	B	NP014	15.39
	G	NP010	13.44
	G	024W	32.32
	D	NP012	18.16
	D	030W	28.14
	A	020W	28.11
	A	038W	25.45
	E	026W	24.74
	E	052W	25.4	263.1

Bass Guitar

Tensions calculated for concert pitch at relevant scale length (30″ short, 32″ medium, 34″ long, 36″ extra-long)

SET	NOTE	SINGLE	TENSION (LBS)	TOTALS (LBS)
RS44LC	G	BBL040	42.38
	D	BBL060	43.51
	A	BBL080	49.32
	E	BBL100	36.69	171.9


RS44LD	G	BBL045	45.25
	D	BBL065	49.56
	A	BBL085	48.19
	E	BBL105	39.86	182.86
RS445LD	B	BBL130	35.28	218.14


SM55	G	RLL040	38.79
	D	RLL060	36.76
	A	RLL080	41.90
	E	RLL100	30.98	148.43


RS55LD	G	RLL045	47.4
	D	RLL065	48.76
	A	RLL085	45.02
	E	RLL105	35.8	176.98
RS555LD	B		32.2	209.18


RS66LA	G	SBL030	20.11
	D	SBL050	29.85
	A	SBL065	27.62
	E	SBL085	26.41	103.99


FM66	G	SBL030	20.11
	D	SBL050	29.85
	A	SBL070	30.41
	E	SBL090	27.02	107.39


RS66LB	G	SBL035	26.44
	D	SBL055	33.53
	A	SBL070	30.41
	E	SBL090	27.02	117.4
RS665LB	B	SBL120	26.42	143.82


RS66LC	G	SBL040	39.5
	D	SBL060	38.68
	A	SBL075	35.48
	E	SBL095	31.69	145.35
RS665LC	B	SBL125	29.82	175.17
RS666LC	C	SBL030	35.82	210.99


RS668	G	SBL020	40.46
	G	SBL045	48.27
	D	SBL030	45.13
	D	SBL065	51.30
	A	SBL035	33.45
	A	SBL080	43.80
	E	SBL045	34.13
	E	SBL105	38.60	335.14


SM66	G	SBL040	39.5
	D	SBL060	38.68
	A	SBL080	43.8
	E	SBL100	33.4	155.38
SM665	B	SBL125	29.82	185.2
SM666	C	SBL030	35.82	221.02


RS66LD	G	SBL045	48.27
	D	SBL065	51.3
	A	SBL080	43.8
	E	SBL105	38.6	181.97
RS665LD	B	SBL130	32.56	214.53
RS666LD	C	SBL035	47.35	261.88

RS66LDN	G	NBL045	48.27
	D	NBL065	51.3
	A	NBL085	46.8
	E	NBL105	38.6	184.97
RS665LDN	B	NBL130	32.56	217.53


RS66LE	G	SBL050	53.21
	D	SBL070	54.16
	A	SBL085	47.06
	E	SBL110	42.25	196.68


BS66	G	SBL043	40.94
	D	SBL065	51.3
	A	SBL080	43.8
	E	SBL110	42.25	178.29


RS66EL	G	SEL045	54.12
	D	SEL065	57.51
	A	SEL080	49.11
	E	SEL105	43.27	204.01
	B	SEL130	33.53	237.54


RS66LF	G	SBL045	48.27
	D	SBL065	51.3
	A	SBL085	46.8
	E	SBL105	38.6	184.97


RS66M	G	SBM040	31.56
	D	SBM050	27.98
	A	SBM075	32.07
	E	SBM090	26.99	118.6


RS66S	G	SBS040	27.74
	D	SBS050	24.6
	A	SBS075	28.18
	E	SBS090	23.72	104.24


RS66LH	D	SBL065	51.3
	A	SBL080	49.11
	E	SBL105	38.6
	B	SBL130	32.56	171.57


RS66LH+	A	SBL085	46.8
	E	SBL105	38.6
	B	SBL135	32.56
	F#	SBL175	30.7	148.66


SM77	G	JBL040	44.53
	D	JBL060	45.94
	A	JBL080	46.6
	E	JBL100	41.5	178.57
	B	JBL125	35.71

RS77LD	G	JBL045	57.46
	D	JBL065	58.67
	A	JBL085	53.58
	E	JBL105	44.7	214.41
RS775LD	B	JBL130	41.13	255.54


RS77LE	G	JBL050	62.52
	D	JBL075	70.92
	A	JBL095	68.78
	E	JBL110	50.78	253.01


RS77EL	G	JEL045	64.42
	D	JEL065	65.78
	A	JEL085	60.06
	E	JEL105	50.10	240.36


SH77	G	JBL050	62.52
	D	JBL075	70.92
	A	JBL095	68.78

RS77M	G	JBM040	41.74
	D	JBM050	34.83
	A	JBM075	33.03
	E	JBM090	27.71	137.31


RS77S	G	JBS040	36.69
	D	JBS050	30.62
	A	JBS075	29.03
	E	JBS090	24.36	120.7


RS88LD	G	TBL065	51.72
	D	TBL075	43.84
	A	TBL100	47.06
	E	TBL115	34.53	177.15
RS885LD	B	TBL135	30.35	207.5


RS88EL	G	TEL065	57.98
	D	TEL075	49.15
	A	TEL100	55.34
	E	TEL115	38.7


RS88M	G	TBM065	45.81
	D	TBM075	38.84
	A	TBM090	35.27
	E	TBM115	30.59	150.51


RS88S	G	TBS065	39.37
	D	TBS075	32.63
	A	TBS090	31
	E	TBS115	26.89	129.89


NXB40	G	NXBL040	39.5
	D	NXBL060	38.68
	A	NXBL080	43.8
	E	NXBL100	33.4	155.38


NXB45	G	NXBL045	48.27
	D	NXBL065	51.3
	A	NXBL085	46.8
	E	NXBL105	38.6	181.97
	B	NXBL130	32.56	214.53


RB35	G	RBL035	26.44
	D	RBL055	33.53
	A	RBL075	35.48
	E	RBL095	31.69	127.14


RB40	G	RBL040	39.5
	D	RBL060	38.68
	A	RBL080	43.8
	E	RBL100	33.4	155.38
RBL40-5	B	RBL125	29.82	185.2


RBL45	G	RBL045	48.27
	D	RBL065	51.3
	A	RBL085	47.06
	E	RBL105	38.6	185.23
RBL45-5	B	RBL130	32.56	217.79


RB50	G	RBL050	53.21
	D	RBL070	54.16
	A	RBL090	48.15
	E	RBL110	42.25	197.77


UM40	G	SBL040	39.5
	D	SBL060	38.68
	A	SBL080	43.8
	E	SBL100	33.4	155.38

UM45	G	SBL045	48.27
	D	SBL065	51.3
	A	SBL085	47.06
	E	SBL105	38.6	181.97
UM45-5	B	SBL130	32.56	214.53

RS4000	G	RS4001	43.46
at 43.5″ scale	D	RS4002	31.03
	A	RS4003	63.34
	E	RS4004	57.99
	C	RS4005	48.26	244.08

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