Crown Audio K1 Leaflet

 

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

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

Using patented Balanced Current Amplifi er 
(BCA

®

) circuitry, Crown

®

 K-Series amplifi ers 

give you massive amounts of power while gen-
erating just one-tenth the heat of conventional 
amplifi ers. In fact, the powerful K2

®

 amplifi er 

can deliver an amazing 1,250 watts per channel 
into 2 ohms (and that’s a very solid 2 ohms)! 

Because of their incredible effi ciency, K-Series 
amplifi ers 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 amplifi ers virtually 
immune to environmental problems such as 
dust, cigarette smoke, stage fog and spilled liq-
uids. In practical, everyday terms, the K-Series 
amplifi ers are essentially maintenance-free.  As 
with all convection-cooled amplifi ers, varying 
operating levels and loads may require addi-
tional air movement in high ambient tempera-
ture conditions.

K-Series amplifi ers are so energy effi cient—
more than twice that of conventional switching 
amps—they require signifi cantly less energy to 
deliver their massive power into virtually any 
load, no matter how diffi cult. In addition, each 
amplifi er 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 amplifi er may be kept in a con-
tinual ready state at minimal cost. This effi -
ciency means you’ll realize signifi cant savings 
over the life of the amplifi er, reducing the 
cost of ownership, as well as enabling more 
K-Series amplifi ers 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-defi ned 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.

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 specifi ed. Specifi cations for units supplied 
outside the U.S.A. may vary slightly at different AC voltages 
and frequencies. 

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 confi gured to operate with 
100,120, 200, 220, 230, 240, 250VAC at 50 
or 60 Hz. Adapters are acquired through an 
Authorized Service Center.

Frequency Response: ±0.25 dB from 20 Hz to 
20 kHz. The frequency response is band limited 
with an 8 Hz double-integrated 3rd-order But-
terworth high-pass fi lter and a 30 kHz 7th-order 
Gaussian low-pass fi lter.

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

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

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.

•  Accurate, uncolored sound with very low 

distortion for the best in music and voice 
reproduction

•  High damping factor for tight, clean bass 

response

•  Advanced design for energy conservation 

•  Mono mode switches allow you to set up your 

amps/speakers in the confi guration that best 
suits your needs—with combined amp inputs, 
combined amp outputs, or both.

•  Advanced protection circuitry guards against: 

shorted outputs, open circuits, DC, mis-
matched loads, general overheating,high-fre-
quency overloads and internal faults

•  Extremely versatile, handling a wide range of 

speaker impedances and outputs

• Exclusive 

BCA

®

 (Balanced Current Amplifi er) 

power design provides super efficiency for 
quiet, fan-free operation

•  Switchable input sensitivity

•  “Soft start” feature prevents the K-Series ampli-

fi er from drawing large currents when it is fi rst 
turned on so you don’t need to delay power-on 
of your amps

•  Uniquely molded, cast-aluminum front panel 

provides exceptional air circulation for your K-
Series amplifi er

•  Three-year, No-Fault, Fully Transferable War-

ranty completely protects your investment and 
guarantees its specifi cations

 

 

 

 

8 ohm Stereo (per channel)

1 kHz 
Power

4 ohm Bridge-Mono

8 ohm Bridge-Mono

2 ohm Stereo (per channel)

4 ohm Stereo (per channel)

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

*

8 ohm Stereo (per channel)

1 kHz 
Power

4 ohm Bridge-Mono

8 ohm Bridge-Mono

2 ohm Stereo (per channel)

4 ohm Stereo (per channel)

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

*