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AF140
GREEN 5
YELLOW 4
BROWN 3
RED 2
BLACK 1
5 GREEN
4 YELLOW
3 BROWN
2 RED
1 BLACK
5 GREEN
4 YELLOW
3 BROWN
2 RED
1 BLACK
Connection Tables for Auto Transformer
POWER RATING: 140 WATTS FREQUENCY RESPONSE: ±1dB – 30Hz – 15kHz INSERTION LOSS: .3dB
Step Up Model AF140 Step Up Model AF140
INPUT OUTPUT INPUT OUTPUT
1/2
EXAMPLE: USING V RATIO
70.7V connected to input (1 & 3 )
Load connected to output (1 & 5)
Multiply 70.7V x V Ratio of taps 1 & 3
70.7V x 2 + 140V
This will allow a 70.7V line to be stepped up to
140 volts
EXAMPLE: USING Z RATIO
8Ω connected to input (1 & 3 )
Load connected to output (1 & 5)
Multiply 8Ω x Z Ratio of taps 1 & 3
This will allow a 32Ω load to be connected to an
8Ω amplifier output
INPUT OUTPUT TURNS VOLTAGE I
INPUT OUTPUT TURNS VOLTAGE I
TAPS TAPS RATIO RATIO RATIO
1 & 2 1 & 3 1:1.25 1.25 1.56
1 & 2 1 & 4 1:1.88 1.88 3.51
1 & 2 1 & 5 1:2.50 2.50 6.25
1 & 3 1 & 4 1:1.15 1.5 2.25
1 & 3 1 & 5 1:2.0 2.0 4.00
1 & 4 1 & 5 1:1.33 1.33 1.8
MPEDANCE
MPEDANCE
TAPS TAPS RATIO RATIO RATIO
1 & 2 1 & 3 1:1.25 1.25 1.56
1 & 2 1 & 4 1:1.88 1.88 3.51
1 & 2 1 & 5 1:2.50 2.50 6.25
1 & 3 1 & 4 1:1.15 1.5 2.25
1 & 3 1 & 5 1:2.0 2.0 4.00
1 & 4 1 & 5 1:1.33 1.33 1.8
EXAMPLE: USING V RATIO
70.7V connected to input (1 & 5)
Load connected to output (1 & 3)
Multiply 70.7V x V Ratio of taps 1 & 3
70.7V x .5 + 35V
This will allow a 70.7V line to be stepped
up to 35 volts
EXAMPLE: USING Z RATIO
8Ω connected to input (1 & 5 ) i.e. amp output
Load connected to output (1 & 3)
Multiply 8Ω x Z Ratio of taps 1 & 3
This will allow a 2Ω load to be connected to an
8Ω amplifier output
INPUT OUTPUT TURNS VOLTAGE I
INPUT OUTPUT TURNS VOLTAGE I
TAPS TAPS RATIO RATIO RATIO
1 & 5 1 & 2 2.5:1 .40 .16
1 & 5 1 & 3 2.0:1 .50 .25
1 & 5 1 & 4 1.33:1 .75 .56
1 & 4 1 & 2 1.87:1 .53 .28
1 & 4 1 & 3 1.50:1 .67 .45
1 & 3 1 & 2 1.25:1 .80 .64
2 & 4 3 & 4 1.40:1 .71 .51
2 & 4 2 & 3 3.50:1 .29 .08
MPEDANCE
TAPS TAPS RATIO RATIO RATIO
1 & 2 1 & 3 1:1.25 1.25 1.56
1 & 2 1 & 4 1:1.88 1.88 3.51
1 & 2 1 & 5 1:2.50 2.50 6.25
1 & 3 1 & 4 1:1.15 1.5 2.25
1 & 3 1 & 5 1:2.0 2.0 4.00
1 & 4 1 & 5 1:1.33 1.33 1.8
MPEDANCE
©2012 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P. All other trademarks are the property of their respective owners. All specs are subject to change without notice. ATS004336 RevA 5/12
1601 JACK MCKAY BLVD.
ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
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AF140
Connection Tables for Auto Transformer
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©2012 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P. All other trademarks are the property of their respective owners. All specs are subject to change without notice. ATS004336 RevA 5/12
1601 JACK MCKAY BLVD.
ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
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