Features, Speciﬁcations, Power | Crown Audio PT 2.1 instruction

P O W E R - T E C H S E R I E S

PT 2.1

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 sys- tems—clean, punchy sound; reliability; rug- gedness; smaller size; less weight—all at a reasonable price. And Crown PT .1s bring these beneﬁts and much more to the table. That’s because at Crown, we’ve built our repu- tation around legendary sound and support.

Power-Tech .1 Series ampliﬁers are compact, professional stereo power ampliﬁers engi- neered to meet the most demanding sound reinforcement needs. They compare very favorably to more expensive ampliﬁers, pro- viding uncolored sound and signal-to-noise ratios commonly associated with recording studios. Plus, every Power-Tech .1 ampliﬁer is backed by Crown’s unequaled Three-Year, No- Fault, fully-transferrable warranty that covers

Features

	• Rugged, professional power ampliﬁer built	clean, accurate low end.
	for the road.	• Bridge-Mono and Parallel-Mono modes make
		• Bridge-Mono and Parallel-Mono modes make
	• Quick-access front panel power switch and	it easy to optimize the amplifier’s perfor-
	level controls. Turn-on delay for loudspeaker	mance for a wide range of loads.
	protection.	• Balanced phone jack inputs in parallel with
		• Balanced phone jack inputs in parallel with
	• Patented ODEP ® circuitry and Grounded	XLR input connectors.
	Bridge™ design combine to provide perfor-	• Complete protection against shorted outputs,
	mance and reliability that surpass traditional	• Complete protection against shorted outputs,
	mance and reliability that surpass traditional	mismatched loads, overheating, input/output
	designs.	mismatched loads, overheating, input/output
	designs.	DC and high-frequency overload; full internal
		DC and high-frequency overload; full internal
	• Easy to read signal presence (SPI) and distor-	fault protection.
	tion (IOC ®) indicator for each channel.	• Three-year, No-Fault, fully-transferrable
		• Three-year, No-Fault, fully-transferrable
	• High damping factor provides superior	warranty completely protects your investment
	control over low-frequency drivers for a	and guarantees its speciﬁcations.

everything.

With over ﬁve 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!

For more details about the Power-Tech .1 Series, contact the Crown Technical Support Group at 800-342-6939 or 219-294-8200. Also, visit the Crown Audio website at www.crownaudio.com.

Speciﬁcations

The following applies to units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB unless otherwise speciﬁed.

120 VAC, 60 Hz Units: refers to ampliﬁers with dedicated transformers for 120 VAC, 60 Hz power mains.

International Units: refers to ampliﬁers with special multi-tap transformers that make them conﬁgurable for several AC mains voltages and line frequencies.

Performance

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: Greater than 90 dB below full band- width 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: 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; 20:1 ±6% or 26 dB ±0.5 dB at the maximum level setting.

Power

Output Power:

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 (non-convertible) units are available. Rated AC mains voltages are ±10%. Quiescent power draw is 90 watts or less. 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 fan- former 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 supply.

Level: A front panel rotary potentiometer for each channel used to control the output level.

Stereo/Mono: A three-position back panel switch used to select Stereo, Bridge-Mono or Parallel-Mono mode.

Sensitivity: A three-position switch behind 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.

PT 2.1 specifications

Crown Audio, a leader in professional audio technology, has made significant strides with its PT 2.1 speaker system, which has garnered attention in various sound applications. This system offers a perfect blend of audio quality, performance, and user-friendly technology, catering to both live sound environments and installation scenarios.

One of the main features of the Crown Audio PT 2.1 is its high-efficiency design. The system employs Class D amplification, which provides robust power output while maintaining energy efficiency. This technology not only delivers exceptional sound quality but also minimizes heat output, allowing for prolonged use without the risk of overheating.

The PT 2.1 system includes a powerful subwoofer designed to produce deep, resonant bass frequencies. This subwoofer enhances the overall audio experience, making it suitable for various applications, from concerts to corporate events. It is engineered to handle substantial output levels, ensuring thumping bass without distortion, even at high volumes.

Connectivity is a vital aspect of the PT 2.1, and it does not disappoint. The system comes equipped with multiple input options, including XLR and TRS connections, enabling seamless integration with different audio sources. Crown Audio has designed the PT 2.1 to be versatile, making it compatible with other audio equipment, which is especially advantageous for sound engineers and event organizers.

In terms of physical construction, the PT 2.1 is built to last. The enclosure is made from durable materials that can withstand the rigors of transportation and usage, making it ideal for touring musicians and rental companies. Additionally, the design allows for easy stacking, maximizing space efficiency during setup and breakdown.

Another hallmark of the Crown Audio PT 2.1 is its user-friendly interface. Integrated controls allow for quick adjustments of sound levels to suit the acoustics of any environment. This functionality empowers sound technicians to achieve the best audio output tailored to specific venues.

The flexibility of the PT 2.1 system is further enhanced by its lightweight construction, making it easy to transport without sacrificing sound quality. Whether used in a small venue or a large arena, this system adapts well to different configurations and setups.

In summary, the Crown Audio PT 2.1 speaker system embodies the ideal combination of innovation, sound quality, and practicality, making it a valuable tool for audio professionals looking to enhance their sound reinforcement capabilities. Its advanced technology and robust design ensure that it meets the demands of various audio environments, solidifying its place as a go-to solution in the industry.