Crown Audio CH1, CH3, CH2 specifications Specifications, Performance, Power, Load Impedance

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CH1

CH2

CH4

ooking for a quality, constant voltage and low Limpedance two channel amplifier for your res- taurant, nightclub, retail store, school or house

of worship projects? The Crown® “Contractor Series” amplifiers are designed just for you.

CH-Series amplifiers can directly drive “constant voltage” lines, so you can avoid the expense of adding step-up transformers for distributed loud- speaker systems.

All Contractor-Series amplifiers feature Crown’s exclusive SST (System Solutions Topologies) expan- sion system. The SST expansion system makes it easy to tailor your amplifier to a specific application or to add future technology as it develops.

With an incredibly wide range of power and fea- ture/benefits, Contractor-Series amplifiers give the professional sound contractor more options. Crown quality is available at the best dollar-per-watt ratio on the market.

For more details about the Crown Contractor Series, contact the Crown Technical Support Group at 800- 342-6939 or 574-294-8200. Also, visit the Crown Audio website at www.crownaudio.com.

Specifications

C O N T R A C T O R S E R I E S

Features

• Drives multiple impedances, with both low

• Advanced protection circuitry guards against:

impedance and high impedance outputs per

shorted outputs, open circuits, DC, mismatched

channel.

loads, general overheating, high-frequency

High-pass filter for each channel provides

overloads and internal faults.

 

low-frequency roll off to eliminate step down

• Can be mounted in standard (19-inch (48.3-

transformer saturation when used in 70V dis-

cm)) rack, shallow (14-inch (35.56-cm)) rack,

tributed systems.

or stacked on top of each other.

• Shallow chassis design, allowing for installa-

• Accurate, uncolored sound with very low

tion in most wall-mount racks.

distortion for the best in music and voice repro-

• Rear panel detented level controls allow for

duction.

 

accurate level settings and secure operation.

Three-Year, No-Fault, Fully Transferable War-

“Contractor-Correct” barrier strip output con-

ranty completely protects your investment and

guarantees its specifications.

nectors allow for quick and easy connection,

• Crown’s Profit Protection Plan guarantees quick,

regardless of the load.

 

no-questions-asked replacement of your covered

 

Contractor Series amplifier should it fail at any

 

time up to 6 months following date of installation.

 

 

Voltage Gain, 1 kHz, 1.4V sensitivity:

Performance

Note: All measurements apply to amplifiers in stereo mode with 8 ohm loads and an input sensitivity of 26 dB gain, 1 kHz at rated power unless other otherwise specified. Specifications for units supplied outside the U.S.A. may vary slightly at different AC voltages and frequencies.

Power

Output Power: See power charts below.

Load Impedance:

Safe with all types of loads.

4 and 8 ohm Stereo.

16 ohm (CH1) or 8 ohm (CH2) or 4 ohm (CH4) at 70V Stereo.

4, 8 and 16 ohm Bridge.

32 ohm (CH1) or 16 ohm (CH2) or 8 ohm (CH4) at 140V Bridge.

64 ohm (CH1) or 32 ohm (CH2) at 200V Bridge.

CH1

*1 kHz

Power

4 ohm Stereo (per channel)

450W

8 ohm Stereo (per channel)

275W

70V Stereo (per channel)

300W

8 ohm Bridge-Mono

900W

140V Bridge-Mono

600W

*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD.

30.5dB (CH1) or 32.1 dB (CH2) or 34 dB (CH4) at 8 ohms.

34 dB (CH1) or 34 dB (CH2) or 34 dB (CH4) at 70V.

AC Line Requirements:

Note: North American units are 60 Hz only. All other models are 50/60 Hz. Voltages are ±10%.

AC Line Current:

100V: 7.6A (CH1) or 11.4A (CH2) or 8.5A (CH4).

120V: 6.3A (CH1) or 9.5A (CH2) or 7.1A (CH4).

230-240V: 3.5A (CH1) or 5.0A (CH2) or

3.7A (CH4).

AC Line Connector: Detachable 15A IEC connector with country-specific plug.

CH2

*1 kHz

Power

4 ohm Stereo (per channel)

660W

8 ohm Stereo (per channel)

400W

70V Stereo (per channel)

600W

8 ohm Bridge-Mono

1,320W

140V Bridge-Mono

1,200W

*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD.

Frequency Response, 20 Hz to 20 kHz at 1 watt: ±0.1 dB (CH1, CH2) or ±0.25 dB (CH4).

Phase Response: ±15 degrees deviation from linear phase from 20 Hz to 20 kHz at 1 watt.

Signal to Noise Ratio, A-Weighted: Better than 105 dB (CH1, CH2) or 102 dB (CH4) below rated 1-kHz power.

Total Harmonic Distortion (THD), 1 kHz at rated power: 0.5% or less true THD from 20 Hz to 20 kHz.

Intermodulation Distortion (60 Hz and 7 kHz at 4:1): Less than 0.1% (CH1, CH2) or 0.5% (CH4) at rated power to 30 dB below rated power at 8 ohms.

Damping Factor (8 ohm): Better than 400 (CH1, CH2) or 700 (CH4) from 10 Hz to 400 Hz.

Crosstalk, 20 Hz to 20 kHz: Better than 50 dB below rated power.

Common Mode Rejection (CMR): Better than 40 dB from 20 Hz to 1 kHz.

DC Output Offset (shorted Input): < ±10 mV.

CH4

*1 kHz

Power

2 ohm Stereo (per channel)

1,400W**

4 ohm Stereo (per channel)

1,200W

8 ohm Stereo (per channel)

600W

70V Stereo (per channel)

1,200W

4 ohm Bridge-Mono

2,800W**

8 ohm Bridge-Mono

2,400W

140V Bridge-Mono

2,400W

*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD.

**≥200V line voltage provides 1800W (2 ohm stereo) and 3600W (4 ohm bridge-mono).

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Contents Specifications PowerPerformance Load ImpedanceControls IndicatorsInput/Output Protection

CH2, CH1, CH3 specifications

Crown Audio is renowned for its high-performance amplifiers that meet the needs of various professional audio applications. The CH series, which includes the CH1, CH2, and CH3 models, exemplifies this commitment to quality and innovation. These amplifiers are designed for both installed and portable applications, offering a blend of reliability, power, and advanced features.

The Crown CH1 is a single-channel amplifier that delivers pristine sound quality and ample power for smaller setups. It features a lightweight design, making it easy to transport, and its efficient Class D circuitry ensures high output with minimal heat generation. This model is particularly suited for small venues, where space and power efficiency are essential. It also includes a built-in limiter, helping to protect connected speakers from overdriving, thus extending their lifespan.

The CH2 model ups the ante with its dual-channel output, making it ideal for medium-sized venues or installations that require a little more power. Its sophisticated DSP (Digital Signal Processing) capabilities allow for extensive customization of audio performance. Users can tailor settings to optimize sound for specific environments. The CH2 also features comprehensive protection circuitry, which includes short-circuit, thermal, and overload protection, ensuring the amplifier operates safely and effectively under all conditions.

Finally, the CH3 expands further on the CH2's capabilities with even greater power output and additional advanced features. This model is designed to handle larger systems and more demanding audio environments. The CH3 boasts a robust power supply and increased headroom, allowing it to drive heavy loads without distortion. Its advanced cooling system is engineered to keep temperatures in check, which is crucial for maintaining performance during extended use.

All three models in the Crown CH series share common characteristics, such as rugged construction and an easily accessible front panel for straightforward operation. They are equipped with XLR inputs and Speakon outputs, providing flexibility in connectivity. With their high-efficiency designs, these amplifiers are not only powerful but also energy-conscious choices for audio professionals.

In summary, the Crown CH series—comprising the CH1, CH2, and CH3—offers a versatile and powerful solution for audio amplification, suited to a wide range of professional applications. Whether for small gigs, medium events, or large installations, these amplifiers deliver exceptional sound quality and reliability that audio engineers and performers can trust.