NE5532 param. sweep of bias resistor (in LTspice IV format)

Version 4
SHEET 1 1108 680
WIRE -288 -96 -288 -128
WIRE -288 0 -288 -16
WIRE -208 0 -288 0
WIRE -288 16 -288 0
WIRE -208 16 -208 0
WIRE 16 64 -16 64
WIRE 128 64 96 64
WIRE 208 64 128 64
WIRE 336 64 288 64
WIRE -16 80 -16 64
WIRE 96 160 -96 160
WIRE 128 176 128 64
WIRE 192 176 128 176
WIRE 336 192 336 64
WIRE 336 192 256 192
WIRE 368 192 336 192
WIRE 464 192 464 144
WIRE 464 192 432 192
WIRE 480 192 464 192
WIRE 592 192 560 192
WIRE -64 208 -304 208
WIRE 0 208 -64 208
WIRE 96 208 96 160
WIRE 96 208 64 208
WIRE 192 208 96 208
WIRE -304 272 -304 208
WIRE 336 288 336 192
WIRE 96 304 96 208
WIRE 592 336 592 192
WIRE -64 352 -64 208
WIRE -304 448 -304 352
WIRE 96 448 96 384
FLAG -208 16 0
FLAG -304 448 0
FLAG 592 336 0
FLAG -288 -128 V+
FLAG 224 160 V+
FLAG -288 96 V-
FLAG 224 224 V-
FLAG -16 80 0
FLAG 96 448 0
FLAG -96 160 Vin-biased
FLAG 336 288 Vout-biased
FLAG 464 144 Vout-AC
FLAG -64 352 Vin-AC
SYMBOL res 304 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 576 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 600
SYMBOL polcap 0 192 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 10µ
SYMBOL polcap 432 208 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C5
SYMATTR Value 47µ
SYMBOL voltage -288 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL voltage -288 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL voltage -304 256 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 41 56 Left 2
WINDOW 3 26 90 Left 2
SYMATTR InstName Vtest
SYMATTR Value SINE(0 0.01 300)
SYMBOL Opamps\\opamp2 224 128 R0
SYMATTR InstName U2
SYMATTR Value NE5532
SYMBOL res 80 288 R0
SYMATTR InstName R10
SYMATTR Value {a*200K}
SYMBOL res 0 48 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
TEXT -64 -128 Left 2 !.lib NE5532.sub
TEXT -64 -104 Left 2 !.tran 30ms
TEXT -112 -104 Left 2 !;op
TEXT -72 -80 Left 2 !.step param a 0.25 1 0.25