Crown PT2.1 Power-Tech Series Amplifier
No longer available at zZounds
zZounds Gear Experts Say...
Patented ODEP¬ circuitry. Grounded Bridge.
Overview
It's hard to please every crowd. But you'll have a better chance when you use a Crown Power-Tech .1 Series amplifier. Musicians and DJs alike demand a lot from their systems — clean, punchy sound; reliability; ruggedness; smaller size; less weight — all at a reasonable price. Crown PT .1s bring these benefits and much more to the table. That's because at Crown, they've built their reputation around legendary sound and support. With over 5 decades of experience designing and building rock-solid products, Crown is the standard in amp technology. So check out the affordable, "all-Crown" Power-Tech .1. They are a powerful argument for quality and value!
Features
Rugged, professional power amplifier built for the road
Quick-access front panel power switch and level controls
Turn-on delay for loudspeaker protection
Patented ODEP¬ circuitry and Grounded Bridge design combine to provide performance and reliability that surpass traditional designs
Easy to read signal presence (SPI) and distortion (IOC¬) indicator for each channel
High damping factor provides superior control over low-frequency drivers for a clean, accurate low end
Bridge-Mono and Parallel-Mono modes make it easy to optimize the amplifier's performance for a wide range of loads
Balanced phone jack inputs in parallel with XLR input connectors
Complete protection against shorted outputs, mismatched loads, overheating, input/output DC and high-frequency overload; full internal fault protection
3-year,… read more No-Fault, fully transferrable warranty completely protects your investment and guarantees its specifications
Protection
Power-Tech .1 Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; input overload and high-frequency blowups. They also protect loudspeakers from input and output DC, as well as providing protection from turn-on/turn-off transients. If operating conditions are unreasonable, the patented ODEP circuitry proportionally limits the drive level to protect the output transistors, particularly in the case of elevated temperature. A thermal switch imbedded in the transformer protects the power supplies from overload. In the rare event that a transformer overheats, the thermal switch removes power, waits until the unit has cooled to a safe temperature and then resets itself.
Crown's 3-Year, Full, No-Fault Warranty
Crown offers a 3-Year, Full, No-Fault Warranty for every new Crown amplifierÖan unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown amplifier is warranted to meet or exceed original specifications for the first three years of ownership. During this time, if your amplifier fails, or does not perform to original specifications, it will be repaired or replaced at our expense. About the only things not covered by this warranty are those losses normally covered by insurance and intentional abuse. And the coverage is transferable should you sell your amplifier. read less
Features
Rugged, professional power amplifier built for the road
Quick-access front panel power switch and level controls
Turn-on delay for loudspeaker protection
Patented ODEP¬ circuitry and Grounded Bridge design combine to provide performance and reliability that surpass traditional designs
Easy to read signal presence (SPI) and distortion (IOC¬) indicator for each channel
High damping factor provides superior control over low-frequency drivers for a clean, accurate low end
Bridge-Mono and Parallel-Mono modes make it easy to optimize the amplifier's performance for a wide range of loads
Balanced phone jack inputs in parallel with XLR input connectors
Complete protection against shorted outputs, mismatched loads, overheating, input/output DC and high-frequency overload; full internal fault protection
3-year,… read more No-Fault, fully transferrable warranty completely protects your investment and guarantees its specifications
Protection
Power-Tech .1 Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; input overload and high-frequency blowups. They also protect loudspeakers from input and output DC, as well as providing protection from turn-on/turn-off transients. If operating conditions are unreasonable, the patented ODEP circuitry proportionally limits the drive level to protect the output transistors, particularly in the case of elevated temperature. A thermal switch imbedded in the transformer protects the power supplies from overload. In the rare event that a transformer overheats, the thermal switch removes power, waits until the unit has cooled to a safe temperature and then resets itself.
Crown's 3-Year, Full, No-Fault Warranty
Crown offers a 3-Year, Full, No-Fault Warranty for every new Crown amplifierÖan unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown amplifier is warranted to meet or exceed original specifications for the first three years of ownership. During this time, if your amplifier fails, or does not perform to original specifications, it will be repaired or replaced at our expense. About the only things not covered by this warranty are those losses normally covered by insurance and intentional abuse. And the coverage is transferable should you sell your amplifier. read less
Specs
PT 2.1
4-ohm dual (per channel): 460W at 1kHz power; 425W at 20Hz-20kHz power
8-ohm dual (per channel): 325W at 1kHz power; 310W at 20Hz-20kHz power
8-ohm bridge-mono: 910W at 1kHz power; 830W at 20Hz-20kHz power
***Note:
1kHz power: refers to maximum average power in watts at 1kHz with 0.1% THD.
20Hz-20kHz power: refers to maximum average power in watts at 20Hz to 20kHz with 0.1% THD.
Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1 watt.
Phase Response: ±10 degrees from 10 Hz to 20 kHz at 1 watt.
Signal-to-Noise: A-weighted, better than 105 dB below full bandwidth power. Better than 100 dB below full bandwidth power from 20 Hz to 20 kHz.
Total Harmonic Distortion (THD): Less than 0.05% at full bandwidth power from 20 Hz to 1 kHz increasing linearly to 0.1% at 20 kHz.
Intermodulation Distortion (IMD): (60 Hz and 7 kHz 4:1) Less than 0.05% from less than 171 milliwatts to full bandwidth power.
Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz.
Crosstalk
Power-Tech 2.1: Greater than 90 dB below full bandwidth power from 50 Hz to 2 kHz, rising linearly to greater than 66 dB at 20 kHz.
Controlled Slew Rate: Greater than 13 volts/ms.
Voltage Gain: 20:1 ±6% or 26 dB ±0.5 dB at the maximum level setting.
Power-Tech 2.1: 66:1 ±6% or 36 dB ±0.5 dB at 0.775-volt sensitivity; 36:1 ±6% or 31 dB ±0.5 dB at 1.4-volt sensitivity.
Load Impedance: Safe with all types of loads. Rated for 4 to 8 ohms in Stereo, 8 to 16 ohms in Bridge-Mono and 2 to 4 ohms in Parallel-Mono mode.
Required AC Mains: Power requirements are provided on each unit's back panel. 120 VAC, 60 Hz and 100/120/220/240 VAC, 50 to 60 Hz (unconvertible) units are available. Rated AC mains voltages are ±10%. Quiescent power draw is 90 watts or less.
Power-Tech 2.1: 100 and 120 VAC units draw up to 10 amps of current; 220 and 240 VAC units draw up to 5 amps.
Low-Voltage Power Supply: A ±24 VDC fanformer supply (fan motor winding) regulated to ±15 VDC.
AC Connector: An appropriate AC line cord and plug are provided. North American units have a standard 3-wire, 15-amp grounded connector (NEMA 5-15P).
Controls
Power: A front panel push button switch used to turn the amplifier on and off. It is also a circuit breaker for the power supplies in the Power-Tech 1.1 and 2.1.
Level: A front panel rotary potentiometer for each channel used to control the output level.
Stereo/Mono: A 3-position back panel switch used to select Stereo, Bridge-Mono or Parallel-Mono mode.
Sensitivity: A 3-position switch inside the input module used to select the input sensitivity for both channels: 0.775 volts or 1.4 volts for standard 1 kHz power, or 26 dB voltage gain.
Reset (Power-Tech 3.1 only): A back panel push button used to reset the circuit breaker that protects the power supplies.
Indicators
Enable: This red indicator shows the on/off status of the low voltage power supply.
Signal/IOC: Each channel has a 2-color indicator that flashes green to show signal presence and yellow if the amplifier causes distortion of 0.05% or more.
Input/Output
Input Connector: Balanced Õ in. phone jacks and XLR connectors in parallel
Input Impedance: Nominally 20 K ohms, balanced; 10 K ohms, unbalanced
Output Connector: 2 sets of touch-proof binding posts
Output Impedance: Less than 10 milliohms in series with less than 2 microhenries
DC Output Offset: Less than 10 millivolts
Output Signal
Stereo: Unbalanced, 2-channel.
Bridge-Mono: Balanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.
Parallel-Mono: Unbalanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.
Construction: Durable black finish on steel chassis with special "flow-through" ventilation from front to side panels.
Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
Dimensions: Standard 19 in. (48.3 cm) rackmount width (EIA RS-310-B), 3.5 in. (8.9 cm) height and 16 in. (40.6 cm) depth behind the mounting surface.
Approximate Weight: Center of gravity is 6 in. (15.2 cm) behind front mounting surface.
Power-Tech 2.1: 33 lbs. (15.0 kg) net; 37 lbs. (16.8 kg) shipping weight.
4-ohm dual (per channel): 460W at 1kHz power; 425W at 20Hz-20kHz power
8-ohm dual (per channel): 325W at 1kHz power; 310W at 20Hz-20kHz power
8-ohm bridge-mono: 910W at 1kHz power; 830W at 20Hz-20kHz power
***Note:
1kHz power: refers to maximum average power in watts at 1kHz with 0.1% THD.
20Hz-20kHz power: refers to maximum average power in watts at 20Hz to 20kHz with 0.1% THD.
Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1 watt.
Phase Response: ±10 degrees from 10 Hz to 20 kHz at 1 watt.
Signal-to-Noise: A-weighted, better than 105 dB below full bandwidth power. Better than 100 dB below full bandwidth power from 20 Hz to 20 kHz.
Total Harmonic Distortion (THD): Less than 0.05% at full bandwidth power from 20 Hz to 1 kHz increasing linearly to 0.1% at 20 kHz.
Intermodulation Distortion (IMD): (60 Hz and 7 kHz 4:1) Less than 0.05% from less than 171 milliwatts to full bandwidth power.
Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz.
Crosstalk
Power-Tech 2.1: Greater than 90 dB below full bandwidth power from 50 Hz to 2 kHz, rising linearly to greater than 66 dB at 20 kHz.
Controlled Slew Rate: Greater than 13 volts/ms.
Voltage Gain: 20:1 ±6% or 26 dB ±0.5 dB at the maximum level setting.
Power-Tech 2.1: 66:1 ±6% or 36 dB ±0.5 dB at 0.775-volt sensitivity; 36:1 ±6% or 31 dB ±0.5 dB at 1.4-volt sensitivity.
Load Impedance: Safe with all types of loads. Rated for 4 to 8 ohms in Stereo, 8 to 16 ohms in Bridge-Mono and 2 to 4 ohms in Parallel-Mono mode.
Required AC Mains: Power requirements are provided on each unit's back panel. 120 VAC, 60 Hz and 100/120/220/240 VAC, 50 to 60 Hz (unconvertible) units are available. Rated AC mains voltages are ±10%. Quiescent power draw is 90 watts or less.
Power-Tech 2.1: 100 and 120 VAC units draw up to 10 amps of current; 220 and 240 VAC units draw up to 5 amps.
Low-Voltage Power Supply: A ±24 VDC fanformer supply (fan motor winding) regulated to ±15 VDC.
AC Connector: An appropriate AC line cord and plug are provided. North American units have a standard 3-wire, 15-amp grounded connector (NEMA 5-15P).
Controls
Power: A front panel push button switch used to turn the amplifier on and off. It is also a circuit breaker for the power supplies in the Power-Tech 1.1 and 2.1.
Level: A front panel rotary potentiometer for each channel used to control the output level.
Stereo/Mono: A 3-position back panel switch used to select Stereo, Bridge-Mono or Parallel-Mono mode.
Sensitivity: A 3-position switch inside the input module used to select the input sensitivity for both channels: 0.775 volts or 1.4 volts for standard 1 kHz power, or 26 dB voltage gain.
Reset (Power-Tech 3.1 only): A back panel push button used to reset the circuit breaker that protects the power supplies.
Indicators
Enable: This red indicator shows the on/off status of the low voltage power supply.
Signal/IOC: Each channel has a 2-color indicator that flashes green to show signal presence and yellow if the amplifier causes distortion of 0.05% or more.
Input/Output
Input Connector: Balanced Õ in. phone jacks and XLR connectors in parallel
Input Impedance: Nominally 20 K ohms, balanced; 10 K ohms, unbalanced
Output Connector: 2 sets of touch-proof binding posts
Output Impedance: Less than 10 milliohms in series with less than 2 microhenries
DC Output Offset: Less than 10 millivolts
Output Signal
Stereo: Unbalanced, 2-channel.
Bridge-Mono: Balanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.
Parallel-Mono: Unbalanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.
Construction: Durable black finish on steel chassis with special "flow-through" ventilation from front to side panels.
Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
Dimensions: Standard 19 in. (48.3 cm) rackmount width (EIA RS-310-B), 3.5 in. (8.9 cm) height and 16 in. (40.6 cm) depth behind the mounting surface.
Approximate Weight: Center of gravity is 6 in. (15.2 cm) behind front mounting surface.
Power-Tech 2.1: 33 lbs. (15.0 kg) net; 37 lbs. (16.8 kg) shipping weight.
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