KLR-Series Amplifiers KLR 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. All Rights Reserved Rev 0.72110 Page - 2 Important Safety Instructions - 2 Introduction - 3 Operator Manual – KLR Series Amplifiers Important Safety Instructions Consignes de sécurité à lire attentivement The KLR Series - 4 This power amplifier can produce dangerous output voltage, power and sound pressure levels. In order to minimize the risk of injury, damage, or hearing loss, please read the entire owner’s manual. Physical Description - 5 Installation - 6 Troubleshooting - 10 Cet amplificateur de puissance peut produire un voltage et une pression acoustique qui pourrait être dangereuse ou pourrait meme causer des problêmes ou perte accuité auditive. Consultez le manuel d’instruction et observez les consignes. Spec Table - 11 Warranty - 12 The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying the device. This manual uses a Perpetual Table Of Contents. Each page has a copy of the manual’s contents in a gray box just like this one. The section you are in will always be bold with the other sections “grayed out.” The feature allows you to jump directly to another section without having to return to a Table Of Contents page. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Only use attachments/accessories specified by the manufacturer. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. Le symbole de la flèche dans un triangle équilateral symbolisant la foudre est prévu pour sensibiliser l’utilisateur à la présence de tension de voltage non isolée à l’intérieur de l’appareil. Elle pourrait constituer un danger de risque de décharge électrique pour les utilisateurs. Le point d’exclamation dans le triangle équilatérale alerte l’utilisateur de la présence de consignes qu’il doit d’abord consulter avant d’utiliser l’appareil. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Lisez ces instructions. Conservez ces instructions. Observez les avertissements. Suivez ces instructions. Pour réduire le risque de feu ou la décharge électrique, ne pas exposer cet appareil pour pleuvoir ou l'humidité. Ne pas utiliser l’appareil près de l’eau. Le nettoyer à l’aide d’un tissus sec. Ne pas bloquer les ouvertures de ventilation, installer selon les consignes du fabricant. Eloigner des sources de chaleur tel: radiateurs, fourneaux ou autres appareils qui produisent de la chaleur. Ne pas modifier ou amputer le système de la mise à terre. Une prise avec mise à terre comprend deux lames dont une plus large ainsi qu’une mise à terre: ne pas la couper ou la modifier. Si la prise murale n’accepte pas la fiche, consulter un électricien pour qu’il remplace la prise désuète. Protéger le cordon de secteur contre tous bris ou pincement qui pourraient l’endommager, soit à la fiche murale ou à l’appareil. N’employer que les accessoires recommandés par le fabricant. N’utiliser qu’avec les systèmes de fixation,chariots, trépied ou autres, approuvés par le fabricant ou vendus avec l’appareil. Débrancher l’appareil lors des orages électriques ou si inutilisé pendant une longue période de temps. Un entretient effectué par un centre de service accrédité est exigé si l’appareil a été endommagé de quelque façon: si il a été exposé à la pluie,, l’humidité ou s’il ne fonctionne pas normalement ou qu’il a été échappé. Copyright© 2010 – Ashly Audio Inc. Operator Manual – KLR Series Amplifiers Page - 3 Important Safety Instructions - 2 Introduction Congratulations on your purchase of an Ashly KLR-Series amplifier. The KLR-Series is made up of powerful, high-efficiency, lightweight amplifiers incorporating the latest technologies. We are confident that you will be pleased with the high performance, superb sound quality, reliability, and more. Introduction - 3 About Ashly FCC Compliance The KLR Series - 4 Physical Description - 5 Installation - 6 About Ashly Troubleshooting - 10 Ashly Audio was founded in 1974 by a group of recording engineers, concert sound professionals, and electronics designers. The first products were elaborate custom consoles Spec Table - 11 Warranty - 12 for friends and associates, but 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 Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference 2. This device must accept any interference received, including interference that may cause undesired operation. All Rights Reserved Rev 0.72110 Page - 4 Important Safety Instructions – 2 Introduction - 3 The KLR Series - 4 Protection Physical Description - 5 Installation - 6 Troubleshooting - 10 Operator Manual – KLR Series Amplifiers The KLR Series KLR-Series amplifiers are high-efficiency, lightweight high power amplifiers incorporating the latest amplifier technologies. The series provides a power range of 1000 to 2500 watts per channel at 2 ohms (20Hz20kHz, 1% THD). The KLR series is available in 2 channel versions at four power points. All models will drive 2, 4, or 8 ohm loads. Spec Table - 11 Warranty - 12 Model KLR 2000 KLR 3200 KLR 4000 KLR 5000 • • • • • • • • • KLR-Series Power Ratings (per channel) Stereo Mono Bridged 8Ω 4Ω 2Ω 4Ω 350W 600W 1000W 2000W 650W 1100W 1600W 3200W 850W 1400W 2000W 4000W 1000W 1700W 2500W 5000W Inputs are via 3-pin Euroblock, XLR, and ¼” TRS connectors. Switch mode power supply provides high efficiency and low weight Output connectors are Neutrik Speakon. 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/off Gain selectable switch for both channels Removable dust filters on front panel Rack ears for permanent installation in a standard 2RU 19”(rack mount width) enclosure Protection KLR-Series Amplifiers come standard with several protection circuits: Output over-current protection DC output protection Chassis internal temperature monitoring Inrush limiting Mains circuit breaker Copyright© 2010 – Ashly Audio Inc. Operator Manual – KLR Series Amplifiers Page - 5 Important Safety Instructions – 2 Physical Description Introduction - 3 Each model in the KLR-Series is 2RU. The model number is indicated on the left side of the The KLR Series - 4 front panel Physical Description - 5 Front Panel Rear Panel Amplifier Front Panel Installation - 6 Troubleshooting - 10 Spec Table - 11 Warranty - 12 1. 2. 3. 4. Mounting Holes – For rack mounting. Air Inflow Vents – Cool air enters here. Channel Attenuators – These knobs adjust the attenuation of the input signal of each channel from ∞ to 0. Signal, Clip, and Protect LEDs – Indicates output level of –30, -20, 0dB, Clip, and amplifier protect. 5. Power Switch and LED – Switches the unit on or off. 7. 3-Pin Euroblock Input Connectors – These connectors are used for balanced or unbalanced input signals. 8. Combination XLR, 1/4” TRS Input Connectors – These connectors are used for balanced or unbalanced input signals. 9. Limiter Switch – This switch engages the limiter. There is a separate limiter for each channel. Amplifier Rear Panel 1. 2. 3. 4. 5. 6. AC Cord – For connection to the AC mains CH 2 Output Connector – This connector provides the amplifier’s Channel 2 output. CH 1, CH 2, Bridged Output Connector – This connector provides the amplifier’s Channel 1, channel 1 and 2, or bridged output. Air Outflow Vents – Warm air exits here. Gain Switch – The Gain switch sets both channel’s gain to 1V, 32dB, or 26dB sensitivity. Mode Switch – This switch selects the amplifier’s operating mode (Bridge, Stereo, or Parallel Mono). 10. HPF Switch – This switch selects the input HiPass filter to 30Hz, 50Hz, or Off. WARNING: Do not remove the mains connector ground. All Rights Reserved Rev 0.72110 Page - 6 Important Safety Instructions – 2 Introduction - 3 The KLR Series - 4 Physical Description - 5 Front Panel Rear Panel Installation – 6 Requirements Installation Density Typical Applications Connectors & Polarity Speaker Connections Troubleshooting - 10 Spec Table - 11 Warranty - 12 Operator Manual – KLR Series Amplifiers Installation KLR-Series amplifiers are designed for use in both fixed and mobile sound systems. Each amplifier is shipped (unless otherwise specified) with the following factory settings: Front panel: On/Off Switch = Off Attenuators = ∞ Rear panel: High Pass Filter(s) = Off Gain Selector = +26 dB Mode Selector = Stereo Limiter Switch = Off Before connecting to mains power, make sure that the switches are set to the configuration needed for your particular application. Always switch the amplifier off before making any changes to the settings. Failure to do so could result in damage to the unit or other components in your system. CAUTION: When mounting or connecting the amplifier, always disconnect it from the mains. Use four screws and washers when mounting the amplifier to the front rack rails. Rear support is also recommended, especially for mobile or touring use. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. 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 for specific input, output and other figures. Installation Density KLR-Series amplifiers produce substantial power output from a small chassis. When driven at the higher-end of their potential, they do produce heat that must be dissipated. In cases where multiple KLR amplifiers are mounted together (or a single KLR with other equipment), it is recommended that a 1RU space is left between units to allow for proper air circulation. If the amplifier overheats, it will go into ‘thermal’ protect mode to prevent damage to itself and any connected components and speakers. Copyright© 2010 – Ashly Audio Inc. Operator Manual – KLR Series Amplifiers Page - 7 Important Safety Instructions – 2 Typical Applications Introduction - 3 The KLR Series - 4 Physical Description - 5 Installation – 6 Requirements Installation Density Typical Applications Connectors & Polarity Speaker Connections Troubleshooting - 10 The most common use of a KLR-Series amplifier is a 2-channel source driving 2 speaker channels. In this illustration, the amplifier is receiving a stereo signal and is driving two stereo speakers. The amplifier is in STEREO mode. Another use of a KLR-Series amplifier is a single channel source driving both speaker channels. In this illustration, 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 is 4Ω (2Ω per channel). All Rights Reserved Rev 0.72110 Spec Table - 11 Warranty - 12 Page - 8 Important Safety Instructions – 2 Introduction - 3 The KLR Series - 4 Physical Description - 5 Installation – 6 Requirements Installation Density Typical Applications Connectors & Polarity Operator Manual – KLR Series Amplifiers Connectors & Polarity KLR-Series amplifiers utilize three types of professional audio connectors. For the inputs, 3-pin Euroblock connectors are utilized with their polarity clearly marked on the amplifier’s rear panel, and combination XLR and 1/4” phone jack are all wired in parallel. Outputs are via Speakon 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. Speaker Connections Troubleshooting - 10 Spec Table - 11 Warranty - 12 Copyright© 2010 – Ashly Audio Inc. Operator Manual – KLR Series Amplifiers Page - 9 Speaker Connections Important Safety Instructions – 2 Introduction - 3 The KLR Series - 4 Physical Description - 5 Installation – 6 Requirements Installation Density Typical Applications Connectors & Polarity Speaker Connections Troubleshooting - 10 Spec Table - 11 Stereo Speaker Wiring In this mode, the amplifier’s channels operate fully independent of each other. Each signal enters the unit and is amplified separately and wired using different connectors. Stereo Speaker Wiring Using Single 4-Conductor Speaker Cable In this mode, the 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. All Rights Reserved Rev 0.72110 Warranty - 12 Page - 10 Operator Manual – KLR Series Amplifiers Important Safety Instructions – 2 Introduction - 3 Troubleshooting The KLR Sries - 4 Situation Indication Action Physical Description - 5 No Sound Signal LED not lit Clip LEDs not lit Check AC plug. Confirm that AC outlet works by plugging in another device. Signal LED not lit Make sure the signal source is operating and try another cable. Check position of Volume Pots. Check the speaker wiring for breaks. Try another speaker and cable. Overheating will cause protective muting. Check for proper ventilation. Installation – 6 Troubleshooting - 10 Spec Table - 11 Signal LEDs responding to signal level Warranty - 12 Protect LED is lit No Channel Separation No Channel Separation Distorted Sound Power LED is lit Signal LEDs responding to signal level Clip LEDs not lit Hiss Hiss Squeals and Feedback Squeals and Feedback Check the mode indicators on the back panel and make sure the mode selector on the rear panel is in the stereo position. Make sure other equipment in the signal path such as mixers and preamps are set for stereo, not mono A faulty speaker or a loose connection could cause this. Check the wiring and try another speaker. The signal source might be clipping. Keep the volume pots at least halfway up so that the source does not have to be overdriven. Keep the volume pots at least halfway up and try changing input sensitivity with the gain selector on the rear. Unplug the amplifier input to confirm that the hiss is coming from the source or from a device upstream. Erratic or popping noises indicate an electronic fault in the offending unit. To keep the noise floor low, operate the primary signal source at full level, without clipping. Avoid boosting the signal further between the source and the amplifier. Microphone feedback should be eliminated with mixer controls. If noise continues to build up with no microphone gain, there is a serious fault in the signal processors or cables. Working in succession from the signal source towards the amplifier and check each device in the signal path by reducing its gain or by unplugging it. Copyright© 2010 – Ashly Audio Inc. Operator Manual – KLR Series Amplifiers Page - 11 Important Safety Instructions – 2 Spec Table Power Output Per Channel Stereo Mode, both channels driven 8Ω, 20 Hz - 20 kHz, 1% THD 4Ω, 20 Hz - 20 kHz, 1% THD 2Ω, 20 Hz - 20 kHz, 1% THD Bridged Mono Mode 4Ω, 20 Hz - 20 kHz, 1% THD Line Current Draw (all channels driven @4Ω) Idle (120VAC 60Hz) 1/8th Power Pink Noise (120VAC 60Hz) 1/3 Power Sine Wave (120VAC 60Hz) Thermal Dissipation (all channels driven @4Ω) Idle (BTU/hr) 1/8th Power Pink Noise (BTU/hr) 1/3 Power Sine Wave (BTU/hr) Voltage Gain (rated output power @4Ω) Signal to Noise Ratio (20Hz-20kHz, rated power @ 8Ω unweighted) Output Circuitry: Frequency Response 1W @ 8Ω 20Hz-20kHz (-3dB down point) Damping Factor – 100Hz @ rated power @8Ω THD 20Hz-20kHz, 10dB below rated output @4Ω Input Impedance HPF (30Hz, 50Hz, Off) Amplifier Protection KLR 2000 KLR 3200 KLR 4000 KLR 5000 350W 600W 1000W 650W 1100W 1600W 850W 1400W 2000W 1000W 1700W 2500W 2000W 3200W 4000W 5000W 0.99A 9.7A 14.9A 0.92A 11.4A 16.6A 1.05A 14.0A 19.8A 1.14A 17.5A 24.7A 164 1876 2880 31dB 136 2063 3001 33dB 171 2489 3516 36dB 215 3111 4395 37dB >108 dB >109 dB >109 dB >110 dB Class AB Class AB 2 Step Class H 2 Step Class H +/- 0.3dB 5Hz – 70kHz > 380 <0.05% 12 kΩ, balanced 12dB/Oct Output Overcurent, DC Output, Chassis Temperature, Mains Breaker Cooling Front Panel Indicators Attenuators Input Connectors, each channel Output connectors, each channel Operating Temperature/Humidity Power Cable Connector Dimensions Weight Variable Speed Fan, Front to Rear Air Flow Prot/Clip, Signal, Power Per channel: front panel 3- Pin Euroblock, XLR, ¼” TRS Phone Jack Speakon Temperature: -10C - +40C / Humidity: 0% - 90% 24 lbs (10.9kg) 3-Prong NEMA 5-15 19” x 3.5” x 16” (482mm x 88mmx x407mm) 26.4 lbs (12kg) 26.7 lbs (12.1kg) 27.4 lbs (12.4kg) All Specifications Subject to Change or Improvement Without Notice. All Rights Reserved Rev 0.72110 Introduction - 3 The KLR Series - 4 Physical Description - 5 Installation – 6 Troubleshooting - 10 Spec Table – 11 Warranty - 12 Page - 12 Operator Manual – KLR Series Amplifiers Important Safety Instructions – 2 Ashly Audio Inc. LIMITED WARRANTY (USA ONLY) Introduction - 3 (Other countries please contact your respective distributor or dealer.) The KLR Series - 4 For units purchased in the USA, warranty service for this unit shall be provided by ASHLY AUDIO, INC. in accordance with the following warranty statement. Physical Description - 5 Installation – 6 Troubleshooting - 10 Spec Table - 11 Warranty - 12 ASHLY AUDIO, INC. warrants to the owner of this product that it will be free from defects in workmanship and materials for a period of FIVE years from the original-date-of-purchase. ASHLY AUDIO INC. will without charge, repair or replace at its discretion, any defective product or component parts upon prepaid delivery of the product to the ASHLY AUDIO, INC. factory service department, accompanied with a proof of original-date-of-purchase in the form of a valid sales receipt. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. EXCLUSIONS: This warranty does not apply in the event of misuse, neglect, or as a result of unauthorized alterations or repairs made to the product. This warranty is void if the serial number is altered, defaced, or removed. ASHLY AUDIO, INC. reserves the right 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 itself. ASHLY AUDIO, INC. is not liable for any damage or injury, which may result from, or be incidental to, or a consequence of, such defects. Some states do not allow limitations on how long an implied warranty lasts, or the exclusion, or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. OBTAINING WARRANTY SERVICE: For warranty service in the United States, please follow this procedure: 1) Return the product to ASHLY AUDIO, INC. freight prepaid, with a written statement describing the defect and application that the product is used in. ASHLY AUDIO, INC. will examine the product and perform any necessary service, including replacement of defective parts, at no further cost to you. 2) Ship your product to: ASHLY AUDIO, INC. Attention: Service Department 847 Holt Road Webster, NY 14580-9103 Copyright© 2010 – Ashly Audio Inc.