Operation Manual
CT Power Amplifiers
page 16 page 17
CT Power Amplifiers
Operation Manual
16 Specifications
Performance CT475 CT4150 CT875 CT8150
Channels 4 4 8 8
Sensitivity 1.4V 1.4V 1.4V 1.4V
Rated Power Output
75W per channel
into 8/4 ohms
125W per channel
into 8/4 ohms
75W per channel
into 8/4 ohms
125W per channel
into 8/4 ohms
Signal to Noise Ratio (below rated power 20Hz to 20kHz, A-Weighted) 110 dB 110 dB 110 dB 110 dB
Total Harmonic Distortion (THD) (full rated power, 1kHz) < 0.05% < 0.05% < 0.05% < 0.05%
Intermodulation Distortion (from 0dB down to -30dB) < 0.05% < 0.05% < 0.05% < 0.05%
Frequency Response (at 1W into 4/8 ohms) ± 0.5 dB ± 0.5 dB ± 0.5 dB ± 0.5 dB
Common Mode Rejection (20Hz to 1kHz) > 70 dB > 70 dB > 70 dB > 70 dB
Load Ranges 2-8 Ohms 2-8 Ohms 2-8 Ohms 2-8 Ohms
General CT475 CT4150 CT875 CT8150
Dimension (H x W x D) 1.75” x 19” x 15.19” 1.75” x 19” x 15.19” 1.75” x 19” x 15.19” 1.75” x 19” x 15.19”
Net Weight 10 lbs 10 lbs 10 lbs 10 lbs
Net Shipping Weight 15 lbs 15 lbs 15 lbs 15 lbs
*26dBgain
**Amplifier is stable for 20hm loads
* * * *
17 AC Power Draw and Thermal Dissipation
ComTech DriveCore 475
Load Watts in
Watts
out
120VAC
Watts
Dissipated
Watts in Watts out
240VAC
Watts
Dissipated
Thermal Dispation
Line
Current
Watts Out
Per 1A Line
Current
Line
Current
Watts Out
Per 1A Line
Current
btu/hr kcal/hr
Idle (Deep Sleep) - 0.9 <0.1 1.00 0.90 1 3.41 0.86
Idle (Auto Standby) - 11 0.30 11.00 10.00 0.22 15.8 53.88 13.57
Idle (Awake) - 15 0.40 15.00 13.20 0.25 25 85.25 21.48
Idle (Green Power) - 9.7 0.25 - 9 0.20 - - -
1/8th Power Pink
Noise
8 64 38 1.25 30 27 62 38 0.80 47 25 90.37 22.76
6 65 38 1.33 28 27 64 38 0.84 45 27 92.07 23.19
4 70 38 1.35 28 33 66 38 0.90 42 29 110.83 27.92
1/3rd Power Pink
Noise
8 142 100 2.65 38 42 140 100 1.60 63 40 143.22 36.08
6 147 100 2.70 37 47 145 100 1.70 59 45 160.27 40.37
4 150 100 2.75 36 50 149 100 1.80 56 49 170.50 42.95
1/8th Power Sine
8 62 38 1.22 31 24 60 38 0.73 51 23 83.27 20.98
6 63 38 1.23 30 25 61 38 0.74 51 24 85.59 21.56
4 65 38 1.27 30 27 63 38 0.76 49 26 92.41 23.28
1/3rd Power Sine
8 138 100 2.52 40 38 136 100 1.50 67 36 130.26 32.81
6 141 100 2.56 39 41 138 100 1.52 66 38 138.62 34.92
4 146 100 2.64 38 46 144 100 1.58 63 44 155.84 39.26
AC Power Draw and Thermal Disspation:
Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz.
Typical line impedance used.
Measurements made with 120/240 VAC mains.
Data based on all channels driven at 8 Ohms.