Crown Audio CH3 specifications CH1 CH2 CH4, Specifications, Performance, Power, Features, 660W

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).