Crown Audio Power-Tech 1.1 Specifications, Minimum Guaranteed Power, Power-Tech1.1, Power-Tech2.1

Power-Tech .1 Series Power Amplifiers

7 Specifications

Minimum Guaranteed Power	Power-Tech 1.1	Power-Tech 2.1	Power-Tech 3.1
120 VAC, 60 Hz Units, Stereo mode, per channel, both channels driven
1 kHz with 0.1% THD
Stereo, 4 ohms per ch.	305	460	760
Stereo, 8 ohms per ch.	220	325	540
120 VAC, 60 Hz Units, Bridge mono mode
1 kHz with 0.1% THD
8 ohms	605	910	1,525
16 ohms	445	660	1,090
120 VAC, 60 Hz Units, Parallel mono mode
1 kHz with 0.1% THD
2 ohms	605	920	1,530
4 ohms	440	655	1,080

Performance		Power-Tech 1.1	Power-Tech 2.1	Power-Tech 3.1
Frequency Response (at 1 watt, 20Hz - 20 kHz)		± 0.1 dB	± 0.1 dB	± 0.1 dB
Phase Response (at 1 watt, 10Hz - 20 kHz)		± 10°	± 10°	± 10°
Signal to Noise Ratio below rated power (20 Hz to 20 kHz)		>100 dB	>100 dB	>100 dB
Total Harmonic Distortion (THD) at	rated power, from 20 Hz to 1 kHz	< 0.05%	< 0.05%	< 0.05%
Total Harmonic Distortion (THD) at	rated power, at 20 kHz	< 0.1%	< 0.1%	< 0.1%
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1,		< 0.05%	< 0.05%	< 0.05%
from 163 milliwatts to full bandwidth power
Damping Factor: 10 Hz to 400 Hz		>1000	>1000	>1000
Crosstalk (below rated power, 20 Hz to 1 kHz)		> 60 dB	> 60 dB	> 60 dB
Controlled Slew Rate		>13 volts/ms	>13 volts/ms	>13 volts/ms
Input Impedance nominally balanced, nominally unbalanced		20 k ohms, 10 k ohms	20 k ohms, 10 k ohms	20 k ohms, 10 k ohms
Load Impedance (Note: Safe with all types of loads)
Stereo		4-8 ohms	4-8 ohms	4-8 ohms
Bridge Mono		8-16 ohms	8-16 ohms	8-16 ohms
Parallel Mono		2-4 ohms	2-4 ohms	2-4 ohms
Voltage Gain (at maximum level setting)
0.775V sensitivity		35 dB	36 dB	38 dB
1.4V sensitivity		30 dB	31 dB	33 dB
Required AC Mains (configured country-specific)		50/60 Hz, 100-240VAC (+10%, -15%)	50/60 Hz, 100-240VAC (+10%, -15%)	50/60 Hz, 100-240VAC (+10%, -15%)
Power Draw at Idle (configured country-specific)		90 watts or less	90 watts or less	90 watts or less

page 16 Operation Manual