Make sure your amp’s power is measured using the latest CTA standard.
LIST OF INDEPENDENTLY TESTED AMPS
When comparing audio output ratings of 12-volt amplifiers you want the measurements to be made using the same method. Experts from the consumer technology industry collaborated within CTA’s Audio Systems Committee to produce a standard for this purpose. It describes how to measure the output power of an amplifier in terms of continuous power, dynamic power and maximum dynamic power. It also describes how to measure other amplifier characteristics.
When you see the 12-volt amplifier product mark above on an amplifier’s packaging it indicates the amp has been tested by an independent third party using the CTA standard. Amps tested this way and authorized to use the product mark are listed below.
Below is a list of independently tested amps that are authorized to use the CTA 12 Volt Amplifier Power logo.
Manufacturers wanting to get added to this list should contact 12voltamplifier@cta.tech for information about what’s required.
Make
Model
Continuous Power
Dynamic Power
Max Dynamic Power
S/N ref 1 W
THD+N @ 1 W RMS
Jensen
JA1B
291 W RMS x 1 channel at 4 Ω and <= 1% THD+N
301 W x 1 channel at 50 Hz, 4 Ω, and 1% THD+N
325 W x 1 channel at 50 Hz, 4 Ω, and 10% THD+N
-68.0 dBA
< 0.09%
Jensen
JA2B
95 W RMS x 2 channels at 4 Ω and <= 1% THD+N
101 W x 2 channels at 1 kHz, 4 Ω, and 1% THD+N
144 W x 2 channels at 1 kHz, 4 Ω, and 10% THD+N
-72.4 dBA
< 0.14%
Jensen
JA4B
93 W RMS x 4 channels at 4 Ω and <= 1% THD+N
100 W x 4 channels at 1 kHz, 4 Ω, and 1% THD+N
128 W x 4 channels at 1 kHz, 4 Ω, and 10% THD+N
-70.3 dBA
< 0.15%
JVC
KS-DR2001D
215 W RMS x 1 channel at 4 Ω and <= 1% THD+N
220 W x 1 channel at 4 Ω and <= 1% THD+N
220 W x 1 channel at 4 Ω and <= 10% THD+N-
-82.4 dB
< 0.15%
JVC
KS-DR2004D
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N
66 W x 4 channels at 4 Ω and <= 1% THD+N
75 W x 4 channels at 4 Ω and <= 10% THD+N-
-81.6 dBA
< 0.12%
JVC
KS-DR2104DBT
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N
66 W x 4 channels at 4 Ω and <= 1% THD+N
75 W x 4 channels at 4 Ω and <= 10% THD+N
-81.6 dBA
< 0.12%
Kenwood
KAC-314
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N
60 W x 4 channels at 4 Ω and <= 1% THD+N
78 W x 4 channels at 4 Ω and <= 10% THD+N
-84.7 dBA
< 0.04%
Kenwood
KAC-511
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N
340 W x 1 channel at 4 Ω and <= 1% THD+N
368 W x 1 channel at 4 Ω and <= 10% THD+N
-91.9 dBA
< 0.05%
Kenwood
KAC-9106D
606 W RMS x 1 channel at 4 Ω and <= 1% THD+N
723 W x 1 channel at 4 Ω and <= 1% THD+N
651 W x 1 channel at 4 Ω and <= 10% THD+N
-81.7 dBA
< 0.35%
Kenwood
KAC-D5101
372 W RMS x 1 channel at 4 Ω and <= 1% THD+N
380 W x 1 channel at 4 Ω and <= 1% THD+N
386 W x 1 channel at 4 Ω and <= 10% THD+N
-83.3 dBA
< 0.15%
Kenwood
KAC-M3001
223 W RMS x 1 channel at 4 Ω and <= 1% THD+N
228 W x 1 channel at 4 Ω and <= 1% THD+N
228 W x 1 channel at 4 Ω and <= 10% THD+N
-81.4 dBA
< 0.06%
Kenwood
KAC-M3004
61 W RMS x 4 channels at 4 Ω and <= 1% THD+N
65 W x 4 channels at 4 Ω and <= 1% THD+N
72 W x 4 channels at 4 Ω and <= 10% THD+N
-79.9 dBA
< 0.08%
Kenwood
KAC-M5001
215 W RMS x 1 channel at 4 Ω and <= 1% THD+N
220 W x 1 channel at 4 Ω and <= 1% THD+N
220 W x 1 channel at 4 Ω and <= 10% THD+N
-82.4 dBA
< 0.15%
Kenwood
KAC-M5014
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N
66 W x 4 channels at 4 Ω and <= 1% THD+N
75 W x 4 channels at 4 Ω and <= 10% THD+N
-81.6 dBA
< 0.12%
Kenwood
KAC-M5024BT
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N
66 W x 4 channels at 4 Ω and <= 1% THD+N
75 W x 4 channels at 4 Ω and <= 10% THD+N
-81.6 dBA
< 0.12%
Kenwood
X302-4
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N
60 W x 4 channels at 4 Ω and <= 1% THD+N
78 W x 4 channels at 4 Ω and <= 10% THD+N
-84.7 dBA
< 0.04%
Kenwood
X502-1
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N
340 W x 1 channel at 4 Ω and <= 1% THD+N
368 W x 1 channel at 4 Ω and <= 10% THD+N
-91.9 dBA
< 0.05%
Kenwood
X802-5
59 W RMS x 4 channels plus 346 W RMS x 1 channel at 4 Ω and <= 1% THD+N
61 W x 4 channels plus 357 W x 1 channel at 4 Ω and <= 1% THD+N
69 W x 4 channels plus 366 W RMS x 1 channel at 4 Ω and <= 10% THD+N
-77.0 dBA full range
-87.2 dBA sub
< 0.015% full range
< 0.025% sub
Kenwood
XH401-4
108 W RMS x 4 channels at 4 Ω and <= 1% THD+N
112 W x 4 channels at 4 Ω and <= 1% THD+N
119 W x 4 channels at 4 Ω and <= 10% THD+N
-76.8 dBA
< 0.02%
Kenwood
XH901-5
63 W RMS x 4 channels plus 547 W RMS x 1 channel at 4 Ω and <= 1% THD+N
69 W x 4 channels plus 577 W x 1 channel at 4 Ω and <= 1% THD+N
74 W x 4 channels plus 584 W RMS x 1 channel at 4 Ω and <= 10% THD+N
-79.6 dBA full range
-78.1 dBA sub
< 0.06% full range
< 0.20% sub
Kenwood
XM302-4
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N
60 W x 4 channels at 4 Ω and <= 1% THD+N
78 W x 4 channels at 4 Ω and <= 10% THD+N
-84.7 dBA
< 0.04%
Kenwood
XM502-1
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N
340 W x 1 channel at 4 Ω and <= 1% THD+N
368 W x 1 channel at 4 Ω and <= 10% THD+N
-91.9 dBA
< 0.05%
Kenwood
XM802-5
59 W RMS x 4 channels plus 346 W RMS x 1 channel at 4 Ω and <= 1% THD+N
61 W x 4 channels plus 357 W x 1 channel at 4 Ω and <= 1% THD+N
69 W x 4 channels plus 366 W RMS x 1 channel at 4 Ω and <= 10% THD+N
-77.0 dBA full range
-87.2 dBA sub
< 0.015% full range
< 0.025% sub
Kenwood
XR401-4
108 W RMS x 4 channels at 4 Ω and <= 1% THD+N
112 W x 4 channels at 4 Ω and <= 1% THD+N
119 W x 4 channels at 4 Ω and <= 10% THD+N
-76.8 dBA
< 0.02%
Kenwood
XR601-1
460 W RMS x 1 channel at 4 Ω and <= 1% THD+N
482 W x 1 channel at 4 Ω and <= 1% THD+N
540 W x 1 channel at 4 Ω and <= 10% THD+N
-84.3 dBA
< 0.04%
Kenwood
XR901-5
63 W RMS x 4 channels plus 547 W RMS x 1 channel at 4 Ω and <= 1% THD+N
69 W x 4 channels plus 577 W x 1 channel at 4 Ω and <= 1% THD+N
74 W x 4 channels plus 584 W RMS x 1 channel at 4 Ω and <= 10% THD+N
-79.6 dBA full range
-78.1 dBA sub
< 0.06% full range
< 0.20% sub
Kenwood
XR1001-1
714 W RMS x 1 channel at 4 Ω and <= 1% THD+N
724 W x 1 channel at 4 Ω and <= 1% THD+N
820 W x 1 channel at 4 Ω and <= 10% THD+N
-86.3 dBA
< 0.03%
Sony
XAV-9000ES
20 W RMS x 4 channels at 4 Ω and <= 1% THD+N
22 W x 4 channels at 4 Ω and <= 1% THD+N
26 W x 4 channels at 4 Ω and <= 10% THD+N
-86.8 dBA
< 0.1%
Sony
XM-6ES
113 W RMS x 6 channels at 4 Ω and <= 1% THD+N
127 W x 6 channels at 4 Ω and <= 1% THD+N
131 W x 6 channels at 4 Ω and <= 10% THD+N
-80.8 dBA
< 0.19%
|
Make |
Continuous Power |
S/N ref 1 W |
THD+N @ 1 W RMS |
|
Jensen JA1B |
291 W RMS x 1 channel at 4 Ω and <= 1% THD+N 301 W x 1 channel at 50 Hz, 4 Ω, and 1% THD+N 325 W x 1 channel at 50 Hz, 4 Ω, and 10% THD+N |
-68.0 dBA |
< 0.09% |
|
Jensen JA2B |
95 W RMS x 2 channels at 4 Ω and <= 1% THD+N 101 W x 2 channels at 1 kHz, 4 Ω, and 1% THD+N 144 W x 2 channels at 1 kHz, 4 Ω, and 10% THD+N |
-72.4 dBA |
< 0.14% |
|
Jensen JA4B |
93 W RMS x 4 channels at 4 Ω and <= 1% THD+N 100 W x 4 channels at 1 kHz, 4 Ω, and 1% THD+N 128 W x 4 channels at 1 kHz, 4 Ω, and 10% THD+N |
-70.3 dBA |
< 0.15% |
|
JVC KS-DR2001D |
215 W RMS x 1 channel at 4 Ω and <= 1% THD+N 220 W x 1 channel at 4 Ω and <= 1% THD+N 220 W x 1 channel at 4 Ω and <= 10% THD+N- |
-82.4 dB |
< 0.15% |
|
JVC KS-DR2004D |
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N 66 W x 4 channels at 4 Ω and <= 1% THD+N 75 W x 4 channels at 4 Ω and <= 10% THD+N- |
-81.6 dBA |
< 0.12% |
|
JVC KS-DR2104DBT |
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N 66 W x 4 channels at 4 Ω and <= 1% THD+N 75 W x 4 channels at 4 Ω and <= 10% THD+N |
-81.6 dBA |
< 0.12% |
|
Kenwood KAC-314 |
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N 60 W x 4 channels at 4 Ω and <= 1% THD+N 78 W x 4 channels at 4 Ω and <= 10% THD+N |
-84.7 dBA |
< 0.04% |
|
Kenwood KAC-511 |
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N 340 W x 1 channel at 4 Ω and <= 1% THD+N 368 W x 1 channel at 4 Ω and <= 10% THD+N |
-91.9 dBA |
< 0.05% |
|
Kenwood KAC-9106D |
606 W RMS x 1 channel at 4 Ω and <= 1% THD+N 723 W x 1 channel at 4 Ω and <= 1% THD+N 651 W x 1 channel at 4 Ω and <= 10% THD+N |
-81.7 dBA |
< 0.35% |
|
Kenwood KAC-D5101 |
372 W RMS x 1 channel at 4 Ω and <= 1% THD+N 380 W x 1 channel at 4 Ω and <= 1% THD+N 386 W x 1 channel at 4 Ω and <= 10% THD+N |
-83.3 dBA |
< 0.15% |
|
Kenwood KAC-M3001 |
223 W RMS x 1 channel at 4 Ω and <= 1% THD+N 228 W x 1 channel at 4 Ω and <= 1% THD+N 228 W x 1 channel at 4 Ω and <= 10% THD+N |
-81.4 dBA |
< 0.06% |
|
Kenwood KAC-M3004 |
61 W RMS x 4 channels at 4 Ω and <= 1% THD+N 65 W x 4 channels at 4 Ω and <= 1% THD+N 72 W x 4 channels at 4 Ω and <= 10% THD+N |
-79.9 dBA |
< 0.08% |
|
Kenwood KAC-M5001 |
215 W RMS x 1 channel at 4 Ω and <= 1% THD+N 220 W x 1 channel at 4 Ω and <= 1% THD+N 220 W x 1 channel at 4 Ω and <= 10% THD+N |
-82.4 dBA |
< 0.15% |
|
Kenwood KAC-M5014 |
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N 66 W x 4 channels at 4 Ω and <= 1% THD+N 75 W x 4 channels at 4 Ω and <= 10% THD+N |
-81.6 dBA |
< 0.12% |
|
Kenwood KAC-M5024BT |
63 W RMS x 4 channels at 4 Ω and <= 1% THD+N 66 W x 4 channels at 4 Ω and <= 1% THD+N 75 W x 4 channels at 4 Ω and <= 10% THD+N |
-81.6 dBA |
< 0.12% |
|
Kenwood X302-4 |
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N 60 W x 4 channels at 4 Ω and <= 1% THD+N 78 W x 4 channels at 4 Ω and <= 10% THD+N |
-84.7 dBA |
< 0.04% |
|
Kenwood X502-1 |
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N 340 W x 1 channel at 4 Ω and <= 1% THD+N 368 W x 1 channel at 4 Ω and <= 10% THD+N |
-91.9 dBA |
< 0.05% |
|
Kenwood X802-5 |
59 W RMS x 4 channels plus 346 W RMS x 1 channel at 4 Ω and <= 1% THD+N 61 W x 4 channels plus 357 W x 1 channel at 4 Ω and <= 1% THD+N 69 W x 4 channels plus 366 W RMS x 1 channel at 4 Ω and <= 10% THD+N |
-77.0 dBA full range -87.2 dBA sub |
< 0.015% full range < 0.025% sub |
|
Kenwood XH401-4 |
108 W RMS x 4 channels at 4 Ω and <= 1% THD+N 112 W x 4 channels at 4 Ω and <= 1% THD+N 119 W x 4 channels at 4 Ω and <= 10% THD+N |
-76.8 dBA |
< 0.02% |
|
Kenwood XH901-5 |
63 W RMS x 4 channels plus 547 W RMS x 1 channel at 4 Ω and <= 1% THD+N 69 W x 4 channels plus 577 W x 1 channel at 4 Ω and <= 1% THD+N 74 W x 4 channels plus 584 W RMS x 1 channel at 4 Ω and <= 10% THD+N |
-79.6 dBA full range -78.1 dBA sub |
< 0.06% full range < 0.20% sub |
|
Kenwood XM302-4 |
57 W RMS x 4 channels at 4 Ω and <= 1% THD+N 60 W x 4 channels at 4 Ω and <= 1% THD+N 78 W x 4 channels at 4 Ω and <= 10% THD+N |
-84.7 dBA |
< 0.04% |
|
Kenwood XM502-1 |
327 W RMS x 1 channel at 4 Ω and <= 1% THD+N 340 W x 1 channel at 4 Ω and <= 1% THD+N 368 W x 1 channel at 4 Ω and <= 10% THD+N |
-91.9 dBA |
< 0.05% |
|
Kenwood XM802-5 |
59 W RMS x 4 channels plus 346 W RMS x 1 channel at 4 Ω and <= 1% THD+N 61 W x 4 channels plus 357 W x 1 channel at 4 Ω and <= 1% THD+N 69 W x 4 channels plus 366 W RMS x 1 channel at 4 Ω and <= 10% THD+N |
-77.0 dBA full range -87.2 dBA sub |
< 0.015% full range < 0.025% sub |
|
Kenwood XR401-4 |
108 W RMS x 4 channels at 4 Ω and <= 1% THD+N 112 W x 4 channels at 4 Ω and <= 1% THD+N 119 W x 4 channels at 4 Ω and <= 10% THD+N |
-76.8 dBA |
< 0.02% |
|
Kenwood XR601-1 |
460 W RMS x 1 channel at 4 Ω and <= 1% THD+N 482 W x 1 channel at 4 Ω and <= 1% THD+N 540 W x 1 channel at 4 Ω and <= 10% THD+N |
-84.3 dBA |
< 0.04% |
|
Kenwood XR901-5 |
63 W RMS x 4 channels plus 547 W RMS x 1 channel at 4 Ω and <= 1% THD+N 69 W x 4 channels plus 577 W x 1 channel at 4 Ω and <= 1% THD+N 74 W x 4 channels plus 584 W RMS x 1 channel at 4 Ω and <= 10% THD+N |
-79.6 dBA full range -78.1 dBA sub |
< 0.06% full range < 0.20% sub |
|
Kenwood XR1001-1 |
714 W RMS x 1 channel at 4 Ω and <= 1% THD+N 724 W x 1 channel at 4 Ω and <= 1% THD+N 820 W x 1 channel at 4 Ω and <= 10% THD+N |
-86.3 dBA |
< 0.03% |
|
Sony XAV-9000ES |
20 W RMS x 4 channels at 4 Ω and <= 1% THD+N 22 W x 4 channels at 4 Ω and <= 1% THD+N 26 W x 4 channels at 4 Ω and <= 10% THD+N |
-86.8 dBA |
< 0.1% |
|
Sony XM-6ES |
113 W RMS x 6 channels at 4 Ω and <= 1% THD+N 127 W x 6 channels at 4 Ω and <= 1% THD+N 131 W x 6 channels at 4 Ω and <= 10% THD+N |
-80.8 dBA |
< 0.19% |
|
Sony XM-8ES |
119 W RMS x 8 channels at 4 Ω and <= 1% THD+N 131 W x 8 channels at 4 Ω and <= 1% THD+N 137 W x 8 channels at 4 Ω and <= 10% THD+N |
-76.5 dBA |
< 0.27% |
Continuous Power
The continuous power output of a sinusoidal signal for at least 15 seconds, expressed in watts, is the square of the RMS voltage measured at the power amplifier’s output terminals when driven to clipping, divided by the resistance of the reference load.
Dynamic Power
A short-term power rating that can be delivered into a reference load with a burst signal representing the amplifier’s music power headroom above its continuous rated power when driven to clipping.
Maximum Dynamic Power
A short-term power rating that can be delivered with a burst signal representing the amplifier’s maximum usable music power headroom above its continuous rated power when driven to 10% THD+N.
Signal-to-Noise Ratio (SNR)
The signal-to-noise ratio (SNR) is the ratio of the measured output noise level to the output reference level, said ratio to be expressed in decibels.
Total Harmonic Distortion Plus Noise (THD+N)
THD+N is defined as the sum of the total harmonic distortion and noise generated by the power amplifier. The percentage of total harmonic distortion of a sine wave of the fundamental frequency, f, is numerically equal to the ratio of 100 times the square root of the sum of the squares of the RMS voltages of each of the individual harmonics to the RMS voltage of the fundamental, expressed as a percentage.
THD+N is the ratio of a total output signal to the same signal with the fundamental tone removed, leaving only the noise and harmonic distortion components.