Crown Audio K1, K2 specifications Features, Specifications, Power, Performance, Controls

K1

K2

K S E R I E S

K-Series amplifiers deliver more power and sound while using less energy than conventional amplifiers. And it’s all in a

durable, maintenance-free package that’s just two rack spaces high.

Using patented Balanced Current Amplifier (BCA®) circuitry, Crown® K-Series amplifiers give you massive amounts of power while gen- erating just one-tenth the heat of conventional amplifiers. In fact, the powerful K2® amplifier can deliver an amazing 1,250 watts per channel into 2 ohms (and that’s a very solid 2 ohms)!

Because of their incredible efficiency, K-Series amplifiers require no internal cooling fan and feature a closed chassis. Of course, no fan means no fan noise. In addition, the closed chassis makes these amplifiers virtually immune to environmental problems such as dust, cigarette smoke, stage fog and spilled liq- uids. In practical, everyday terms, the K-Series

Features

• Accurate, uncolored sound with very low	• Exclusive BCA® (Balanced Current Amplifier)
distortion for the best in music and voice	power design provides super efficiency for
reproduction	quiet, fan-free operation
• High damping factor for tight, clean bass	• Switchable input sensitivity
response	• “Soft start” feature prevents the K-Series ampli-
• Advanced design for energy conservation
	fier from drawing large currents when it is first
• Mono mode switches allow you to set up your	turned on so you don’t need to delay power-on
	of your amps
amps/speakers in the configuration that best
suits your needs—with combined amp inputs,	• Uniquely molded, cast-aluminum front panel
combined amp outputs, or both.	provides exceptional air circulation for your K-
• Advanced protection circuitry guards against:	Series amplifier
shorted outputs, open circuits, DC, mis-	• Three-year, No-Fault, Fully Transferable War-
matched loads, general overheating,high-fre-	ranty completely protects your investment and
quency overloads and internal faults	guarantees its specifications
• Extremely versatile, handling a wide range of
speaker impedances and outputs

amplifiers are essentially maintenance-free. As with all convection-cooled amplifiers, varying operating levels and loads may require addi- tional air movement in high ambient tempera- ture conditions.

K-Series amplifiers are so energy efficient— more than twice that of conventional switching amps—they require significantly less energy to deliver their massive power into virtually any load, no matter how difficult. In addition, each amplifier is equipped with a “green” circuit that further reduces energy use during idle periods. Energy draw is so low—only 12 watts or less—the amplifier may be kept in a con- tinual ready state at minimal cost. This effi- ciency means you’ll realize significant savings over the life of the amplifier, reducing the cost of ownership, as well as enabling more K-Series amplifiers to be plugged into a single AC circuit, reducing installation costs.

Best of all, the K Series delivers all of the supe- rior sound that Crown is known for—tight, chest-slamming low end, crystal-clear highs and a well-defined midrange. Several excep- tional product reviews concur that the K Series delivers fantastic sound.

The K Series stands above the rest as the per- formance leader in convection-cooled designs.

For more details about the Crown K 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

The following applies to 120-VAC, 60-Hz units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB gain unless 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.

Voltage Gain:

K1: 31.55 dB gain at 1.4 volt sensitivity; 26 dB gain at 2.65 volt sensitivity.

K2: 32.88 dB gain at 1.4 volt sensitivity; 25 dB gain at 3.0 volt sensitivity.

Line Voltage Requirements: Universal power supply can be configured to operate with 100,120, 200, 220, 230, 240, 250VAC at 50 or 60 Hz. Adapters are acquired through an Authorized Service Center.

Performance

Frequency Response: ±0.25 dB from 20 Hz to 20 kHz. The frequency response is band limited with an 8 Hz double-integrated3rd-order But- terworth high-pass filter and a 30 kHz 7th-order Gaussian low-pass filter.

Signal to Noise (A-weighted): > 100 dB below rated power.

Damping Factor: > 3,000 from 10 to 400 Hz.

K1	*1 kHz
	Power
2 ohm Stereo (per channel)	750W
4 ohm Stereo (per channel)	550W
8 ohm Stereo (per channel)	350W
4 ohm Bridge-Mono	1,500W
8 ohm Bridge-Mono	1,100W

*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% or less TRUE THD.

K2	*1 kHz
	Power
2 ohm Stereo (per channel)	1,250W
4 ohm Stereo (per channel)	800W
8 ohm Stereo (per channel)	500W
4 ohm Bridge-Mono	2,500W
8 ohm Bridge-Mono	1,600W

*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% or less TRUE THD.

Controls

Level: A calibrated rotary level control for each channel located on the front panel.

Power: An on/off rocker switch located on the front panel.

Input Sensitivity: A two-position switch for each channel located on the back panel near each channel’s input connectors.

Bridge Output: An on/off switch located on the back panel between the input connectors which, when turned on, bridges the two output channels for twice the output voltage.