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Operator Manual – KLR Series Amplifiers  

 

Page - 5 

 

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0611

 

Physical Description 

Each model in the KLR-Series is 2RU.  The model number is indicated on the left side of the 
front panel 

Amplifier Front Panel 

 

 

1. 

Mounting Holes

 – For rack mounting. 

2. 

Air Inflow Vents

 – Cool air enters here. 

3. 

Channel Attenuators 

– These knobs adjust 

the attenuation of the input signal of each 
channel from 

 to 0. 

4. 

Signal, Clip, and Protect  LEDs

 – Indicates 

output level of -30, -20, -10dB, Clip, and 
amplifier protect. 

5. 

Power Switch and LED

 – Switches the unit on 

or off.  The KLR 2000, KLR 3200, and KLR 
4000 use a switch with a built in mains circuit-
breaker.  The KLR 5000 uses a non-breaker 
switch and an internal mains fuse instead. 

Amplifier Rear Panel  

(

Note:  KLR 5000 rear panel has different feature locations)

 

 

 

1.   AC Cord

 – For connection to the AC mains  

2.   CH 1, CH 2, Bridged Output Connector

 – This 

connector provides the amplifier’s Channel 1, channel 1 
and 2, or bridged output.    

3.   CH 2 Output Connector

 – This connector provides 

the amplifier’s Channel 2 output. 

4.   Air Outflow Vents

 – Warm air exits here. 

5.   Gain Switch

 – The Gain switch sets the gain for both 

channels. Gain selections vary between models.  Check 
specifications for each model. 

6.   Mode Switch

 – This switch selects the amplifier’s 

operating mode (Bridge, Stereo, or Parallel Mono).  

7.   3-Pin Euroblock Input Connectors

 – These 

connectors are used for balanced or unbalanced input 
signals.  For parallel mode or bridged mode, use INPUT 1 
only.   

8.   Combination XLR, 1/4” TRS Input Connectors

 – 

These connectors are used for balanced or unbalanced 
input signals, and are wired in parallel with the Euroblock 
connector.   

9.   Limiter Switch

 – This switch engages the limiter.  

There is a separate limiter for each channel. 

10.   HPF Switch

 – This switch selects the input HiPass 

filter to 30Hz, 50Hz, or Off. 

Important Safety 
Instructions – 2 

Introduction - 3 

The KLR Series - 4 

Physical Description - 5 

Front Panel 

Rear Panel 

Installation - 6 

Troubleshooting - 10 

Spec Table - 11 

Warranty - 12 

 
 
 
 

 
 
 
 
 
 
 
 
 
 

Summary of Contents for KLR 2000

Page 1: ...2000 KLR 3200 KLR 4000 KLR 5000 Operator Manual Ashly Audio Inc 847 Holt Road Webster NY 14580 9103 Toll Free 800 828 6308 Telephone 585 872 0010 FAX 585 872 0739 www ashly com All Trademarks referred to herein are the property of their respective owners ...

Page 2: ... décharge électrique ne pas exposer cet appareil pour pleuvoir ou l humidité 6 Ne pas utiliser l appareil près de l eau 7 Le nettoyer à l aide d un tissus sec 8 Ne pas bloquer les ouvertures de ventilation installer selon les consignes du fabricant 9 Eloigner des sources de chaleur tel radiateurs fourneaux ou autres appareils qui produisent de la chaleur 10 Ne pas modifier ou amputer le système de...

Page 3: ...ut business quickly spread to new clients and the business grew The philosophy we established from the very beginning holds true today to offer only the highest quality audio tools at an affordable cost to the professional user ensuring reliability and long life More than thirty years later Ashly remains committed to these principles FCC Compliance This device complies with part 15 of the FCC Rule...

Page 4: ...000W 4000W KLR 5000 X 1000W 1700W 2500W 5000W Inputs are via 3 pin Euroblock XLR and TRS connectors Switch mode power supply provides high efficiency and low weight Output connectors are four pin Speakon type Rear panel switches include Gain and Operation Mode Limiter and HPF Forced air cooled front panel intake rear panel exhaust Front panel indicators for output level clip protect and power on o...

Page 5: ...vides the amplifier s Channel 1 channel 1 and 2 or bridged output 3 CH 2 Output Connector This connector provides the amplifier s Channel 2 output 4 Air Outflow Vents Warm air exits here 5 Gain Switch The Gain switch sets the gain for both channels Gain selections vary between models Check specifications for each model 6 Mode Switch This switch selects the amplifier s operating mode Bridge Stereo ...

Page 6: ...oisture Requirements KLR Series amplifiers have specific physical electrical and signal requirements for proper operation These requirements will vary depending on your specific application setup and the settings on the amplifier When setting up and testing your system please take special care to double check all connections and settings Please refer to the specifications section of this manual fo...

Page 7: ...tration the amplifier is receiving a signal and is driving both channel speakers with the same signal The amplifier is in PARALLEL mode KLR Series amplifiers are well suited to BRIDGED operation to drive a speaker load such as a subwoofer This illustration shows a KLR driving a signal in BRIDGED mode Note the special wiring to the channel 1 connector for Bridge mode Minimum Bridged load impedance ...

Page 8: ...ired in parallel Outputs are four pin Speakon type connectors The polarity for these connections is marked on the unit s chassis Note that polarity changes when the unit is operated in BRIDGED mode Be sure to read the Operation section of this manual for important information on the operating modes Important Safety Instructions 2 Introduction 3 The KLR Series 4 Physical Description 5 Installation ...

Page 9: ...amplifier s channels still operate independent of each other Each signal is amplified separately however both channels are wired using the Channel 1 connector Bridged Mono Mode In this mode a single input is connected to channel 1 and is connected to the two output channels that have been Bridged together using the Channel 1 connector Minimum Bridged load impedance is 4Ω Important Safety Instructi...

Page 10: ...signal level The signal source might be clipping Keep the volume pots at least halfway up so that the source does not have to be overdriven Distorted Sound Clip LEDs not lit Keep the volume pots at least halfway up and try changing input sensitivity with the gain selector on the rear Hiss Hiss Unplug the amplifier input to confirm that the hiss is coming from the source or from a device upstream E...

Page 11: ...try Class AB 2 Step Class H 2 Step Class H 2 Step Class H Frequency Response 1W 8Ω 20Hz 20kHz 3dB down point 0 3dB 5Hz 70kHz Damping Factor 100Hz rated power 8Ω 380 THD 20Hz 20kHz 10dB below rated output 4Ω 0 05 Input Impedance 12 kΩ balanced HPF 30Hz 50Hz Off 12dB Oct Amplifier Protection Output Overcurent DC Output Chassis Temperature Mains Breaker KLR 5000 uses Internal Mains Fuse Instead of Br...

Page 12: ... to make changes in design or make additions to or improvements upon this product without any obligation to install the same on products previously manufactured Any implied warranties which may arise under the operation of state law shall be effective only for FIVE years from the original date of purchase of the product ASHLY AUDIO INC shall be obligated to only correct defects in the product itse...

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