D'Addario · NYXL · 11-14-18-28-38-49-64

D'Addario NYXL1164 (11-14-18-28-38-49-64) in Drop A (7-string) on a 25.5" scale

11-64 Medium 7-String, NYXL Electric Guitar Strings on an electric guitar with a 25.5" scale, tuned to Drop A (7-string) (E4 B3 G3 D3 A2 E2 A1), pulls 131.8 lb59.8 kg586 N in total and 18.8 lb8.54 kg84 N per string on average. That is a tight feel for an electric guitar. The set is moderately uneven (spread 10.2%). String 7 (A1) deviates most: −21% from the set average.

Total tension: 131.8 lb59.8 kg586 N
Average per string: 18.8 lb8.54 kg84 N
Feel: tight; medium ≈ 17.1 lb7.76 kg76 N per string; Set your own preferred feel
Balance: moderately uneven; spread 10.2%

Tension per string

The bronze dashed line is the medium-feel target: the average per-string tension of a 10-46 set on a 25.5" scale in E standard (17.1 lb7.76 kg76 N). Loose and tight are measured against it.Line thickness follows the string gauge; textured lines are wound strings. Hover, tap or tab to a string for details.

#	Note	Hz	Gauge	Item	Type	Tension	vs avg
1	E4	329.6	.011	NYS011	plain	19.6 lb8.90 kg87 N	+4%
2	B3	246.9	.014	NYS014	plain	17.8 lb8.08 kg79 N	−5%
3	G3	196.0	.018	NYS018	plain	18.6 lb8.44 kg83 N	−1%
4	D3	146.8	.028	NYNW028	wound	21.0 lb9.53 kg93 N	+12%
5	A2	110.0	.038	NYNW038	wound	20.9 lb9.49 kg93 N	+11%
6	E2	82.4	.049	NYNW049	wound	18.9 lb8.58 kg84 N	+0%
7	A1	55.0	.064	NYNW064	wound	14.9 lb6.78 kg66 N	−21%
Total						131.8 lb59.8 kg586 N

Open in the calculator

Similar sets in Drop A (7-string), 25.5"

Set	Gauges	Avg per string	Total	Feel	Balance
D'Addario EXL110-7	10-13-17-26-36-46-59	16.5 lb7.47 kg73 N	115.2 lb52.3 kg512 N	medium	moderately uneven
Elixir 12074	10-13-17-26-36-46-59	16.6 lb7.53 kg74 N	116.3 lb52.7 kg517 N	medium	uneven
Elixir 19074	10-13-17-26-36-46-59	16.6 lb7.53 kg74 N	116.3 lb52.7 kg517 N	medium	uneven
Elixir 12106	11-14-18-28-38-49-59	18.8 lb8.53 kg84 N	131.7 lb59.7 kg586 N	tight	uneven
Elixir 19106	11-14-18-28-38-49-59	18.8 lb8.53 kg84 N	131.7 lb59.7 kg586 N	tight	uneven
NYXL1164 (this page)	11-14-18-28-38-49-64	18.8 lb8.54 kg84 N	131.8 lb59.8 kg586 N	tight	moderately uneven

Best match for a medium feel in Drop A (7-string), 25.5"

Ranked by how close every string is to 17.1 lb7.76 kg76 N (lower deviation is better).

D'Addario NYXL1059 10-13-17-26-36-46-59 deviation 11.9%, average 16.4 lb7.45 kg73 N, moderately uneven; same gauges: EXL110-7
Elixir 12074 10-13-17-26-36-46-59 deviation 12.7%, average 16.6 lb7.53 kg74 N, uneven; same gauges: 19074
D'Addario NYXL1164 11-14-18-28-38-49-64 deviation 15.2%, average 18.8 lb8.54 kg84 N, moderately uneven

More for the NYXL1164

Other tunings on 25.5": B standard (7-string), A standard (7-string)

Drop A (7-string) on other scales: 24.75", 25", 26.5", 27", 28", 25.5"–27" multiscale

About these numbers

Tension is calculated, not measured: T = μ · (2 · L · f)², where μ is the string's mass per unit length (unit weight), L the vibrating length (scale) and f the pitch (A4 = 440 Hz, equal temperament). kg means kilogram-force: 1 kg ≈ 9.81 N ≈ 2.205 lb.

How a set feels also depends on the guitar's setup: action height, break angle over the nut and saddle, string length behind the nut and bridge, and your playing style. Plain strings feel stiffer than wound strings at the same tension. Use these figures to compare sets, not as an absolute measure of feel.

Sources

D'Addario product page, tension chart for NYXL1164 (2026-10-31): unit weights derived from the published tensions, cross-checked across sets.