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amplifier turned off when power wire touched the exterior of the amp itself?

i was hooking up my system in my car, and am fairly new to the whole thing. Ive done it about 5-8 times in my own cars. This time however, i accidentally touched the power wire to the outside of the amp, and now it does not turn on. I have replaced all the fuses and I still cannot figure out what is wrong. If anyone has any help it would be greatly appreciated. Thanks!
Josh

As the others have said the amp is probably cooked as the case/shell of the amp is grounded to the battery ground terminal but not directly as the current goes through the circuit board traces and a direct short from power to the case usually vaporizes those traces and since in a good amp circuit layout the ground traces form a star pattern (no loops) starting from the ground terminal and the legs of the star that are connected to the case also feed other components when the trace is gone the amp can’t function as not all of the components inside that need a ground are grounded anymore.

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Yamaha P3500S Power Amplifier $529.99 Yamaha P3500S Power Amplifier P3500S Dual-channel, 590 watts x 2 @ 4W, EEEngine Technology Yamaha’s audio engineers have designed the new P-Series Power Amplifiers as perfect mates to the popular Club Series loudspeakers. To achieve this, they provided them with big power output that matches the power handling capabilities of the Club Series Speakers, and equipped them with YS Processing (Yamaha Speaker Processing) to deliver a signal that is tuned to the needs of these loudspeakers. Further matching is found in Yamaha’s proprietary YS Processing. Each model is equipped with this specially designed circuit that delivers output tailored to the specific response of the Club Series speakers for superior audio quality and performance. All models feature both XLR and 1/4-inch TRS inputs and Neutrik Speakon, phone plug, and 5-way binding post outputs to make connections quick and easy. Other features include Yamaha’s exclusive EEEngine technology which delivers high performance with exceptional efficiency, sweepable high and low pass filters for optimizing output to any loudspeakers, compact and durable 2U chassis, and variable speed cooling fans. Big Output Power Delivered with Great Efficiency The new P-Series Power Amplifiers deliver a robust amount of professional quality power in a wide range of configurations designed to suit most any need. In a 4- ohm bridged application, the P7000S delivers 3200 watts, the P5000S delivers 2600 watts, the P3500S 2000 watts, and the P2500S 1300 watts. Those on a budget will find the lineup’s high power output and affordable prices deliver higher quality without putting a strain on funds. Further savings are realized with extremely efficient operation utilizing Yamaha’s exclusive EEEngine technology which keeps operational costs down by significantly reducing AC power consumption and heat generation. The Perfect Match with Your Club Speakers The new P-Series Power Amplifiers can be used with any loudspeaker system, but if you’re using our Club Series, they will provide power and performance tailored to deliver maximum performance from your system. In an 8-ohm stereo application power output per channel on the P7000S is 700 watts, the P5000S 500 watts, the P3500S 350 watts, and the P2500S 250 watts. This wide selection lets you choose the amplifier that best matches the power handling capabilities of your speaker system. All four models are equipped with independent sweepable high and low pass filters on each channel so you can optimize output for subwoofer or full range systems to provide peak audio quality and performance from any speaker system you may be using. Light Weight Keeps Transport and Setup Easy Look at the specifications and you’ll notice that the P2500S and P3500S are respectably light in weight making transport and setup less strenuous. What’s amazing though, is the comparison in weight per watt when you look at the P5000S and P7000S. The use of a switching power supply makes these two m

Yamaha P5000S Power Amplifier $629.99 Yamaha P5000S Power Amplifier P5000S Dual-channel, 750 watts x 2 @ 4W, EEEngine Technology Yamaha’s audio engineers have designed the new P-Series Power Amplifiers as perfect mates to the popular Club Series loudspeakers. To achieve this, they provided them with big power output that matches the power handling capabilities of the Club Series Speakers, and equipped them with YS Processing (Yamaha Speaker Processing) to deliver a signal that is tuned to the needs of these loudspeakers. Further matching is found in Yamaha’s proprietary YS Processing. Each model is equipped with this specially designed circuit that delivers output tailored to the specific response of the Club Series speakers for superior audio quality and performance. All models feature both XLR and 1/4-inch TRS inputs and Neutrik Speakon, phone plug, and 5-way binding post outputs to make connections quick and easy. Other features include Yamaha’s exclusive EEEngine technology which delivers high performance with exceptional efficiency, sweepable high and low pass filters for optimizing output to any loudspeakers, compact and durable 2U chassis, and variable speed cooling fans. Big Output Power Delivered with Great Efficiency The new P-Series Power Amplifiers deliver a robust amount of professional quality power in a wide range of configurations designed to suit most any need. In a 4- ohm bridged application, the P7000S delivers 3200 watts, the P5000S delivers 2600 watts, the P3500S 2000 watts, and the P2500S 1300 watts. Those on a budget will find the lineup’s high power output and affordable prices deliver higher quality without putting a strain on funds. Further savings are realized with extremely efficient operation utilizing Yamaha’s exclusive EEEngine technology which keeps operational costs down by significantly reducing AC power consumption and heat generation. The Perfect Match with Your Club Speakers The new P-Series Power Amplifiers can be used with any loudspeaker system, but if you’re using our Club Series, they will provide power and performance tailored to deliver maximum performance from your system. In an 8-ohm stereo application power output per channel on the P7000S is 700 watts, the P5000S 500 watts, the P3500S 350 watts, and the P2500S 250 watts. This wide selection lets you choose the amplifier that best matches the power handling capabilities of your speaker system. All four models are equipped with independent sweepable high and low pass filters on each channel so you can optimize output for subwoofer or full range systems to provide peak audio quality and performance from any speaker system you may be using. Light Weight Keeps Transport and Setup Easy Look at the specifications and you’ll notice that the P2500S and P3500S are respectably light in weight making transport and setup less strenuous. What’s amazing though, is the comparison in weight per watt when you look at the P5000S and P7000S. The use of a switching power supply makes these two m

Yamaha P7000S Power Amplifier $749.99 Yamaha P7000S Power Amplifier P7000S Dual-channel, 1100 watts x 2 @ 4W, EEEngine Technology Yamaha’s audio engineers have designed the new P-Series Power Amplifiers as perfect mates to the popular Club Series loudspeakers. To achieve this, they provided them with big power output that matches the power handling capabilities of the Club Series Speakers, and equipped them with YS Processing (Yamaha Speaker Processing) to deliver a signal that is tuned to the needs of these loudspeakers. Further matching is found in Yamaha’s proprietary YS Processing. Each model is equipped with this specially designed circuit that delivers output tailored to the specific response of the Club Series speakers for superior audio quality and performance. All models feature both XLR and 1/4-inch TRS inputs and Neutrik Speakon, phone plug, and 5-way binding post outputs to make connections quick and easy. Other features include Yamaha’s exclusive EEEngine technology which delivers high performance with exceptional efficiency, sweepable high and low pass filters for optimizing output to any loudspeakers, compact and durable 2U chassis, and variable speed cooling fans. Big Output Power Delivered with Great Efficiency The new P-Series Power Amplifiers deliver a robust amount of professional quality power in a wide range of configurations designed to suit most any need. In a 4- ohm bridged application, the P7000S delivers 3200 watts, the P5000S delivers 2600 watts, the P3500S 2000 watts, and the P2500S 1300 watts. Those on a budget will find the lineup’s high power output and affordable prices deliver higher quality without putting a strain on funds. Further savings are realized with extremely efficient operation utilizing Yamaha’s exclusive EEEngine technology which keeps operational costs down by significantly reducing AC power consumption and heat generation. The Perfect Match with Your Club Speakers The new P-Series Power Amplifiers can be used with any loudspeaker system, but if you’re using our Club Series, they will provide power and performance tailored to deliver maximum performance from your system. In an 8-ohm stereo application power output per channel on the P7000S is 700 watts, the P5000S 500 watts, the P3500S 350 watts, and the P2500S 250 watts. This wide selection lets you choose the amplifier that best matches the power handling capabilities of your speaker system. All four models are equipped with independent sweepable high and low pass filters on each channel so you can optimize output for subwoofer or full range systems to provide peak audio quality and performance from any speaker system you may be using. Light Weight Keeps Transport and Setup Easy Look at the specifications and you’ll notice that the P2500S and P3500S are respectably light in weight making transport and setup less strenuous. What’s amazing though, is the comparison in weight per watt when you look at the P5000S and P7000S. The use of a switching power supply makes these two

Roland KC-60 3-Channel 40w Mixing Keyboard Amplifier $279 Roland KC-60 3-Channel 40w Mixing Keyboard Amplifier The Most Affordable KC Amp Ever! Roland KC-60 Keyboard Amplifier – 40w The KC-60 3-Channel Mixing Keyboard Amplifier brings renowned KC-Series sound quality to an even lower price. This affordable 40-watt amp is also the first to feature a Subwoofer output for enhanced low end. And with three separate channels—including an XLR Microphone input and stereo Auxiliary input—the KC-60 is one of the most flexible amps around. Compact, affordable keyboard amplifier with legendary KC sound 40-watt output power with 10″ speaker and independent tweeter Subwoofer output for low-end boost (compatible with most subwoofers) 3-channel design includes 1/4″ Line input and XLR Microphone input Stereo auxiliary input (RCA type) for connecting CD or MD players Rotary controls for adjusting channel and headphone levels, plus Low and High EQ Roland KC-60 Details: Big Sound That’s Easy on Your Wallet Roland’s KC-Series Keyboard Amplifiers are known for their exceptional sound quality. That’s because they’re built to handle the wide range of sounds created by today’s synthesizers, samplers and electronic musical instruments. The new KC-60 takes these principles and puts them in a more affordable design, powered by a 40-watt amplifier with a 10-inch speaker and separate tweeter. Now anyone can step up to a KC amp. And once you do, you’ll never look back. Flexible 3-Channel Design with Subwoofer Output While the KC-60 is built primarily for keyboards, it’s also at home with a microphone and CD player. Specifically, there are three input channels including an XLR Mic input and Auxiliary input—each with its own adjustable volume. And while 40 watts of power sounds good, you can also add an optional subwoofer from any manufacturer via the KC-60′s Subwoofer output—a first of its kind on a keyboard amp! Made for the Road KC amps are built for life on the road. All models have built-in handles for easier transportation (the KC-550 also includes casters) and a rugged design with heavy-duty carpeting, protective edges and an all-metal grille. Specifications: Rated Power Output 40 W Nominal Input Level (1 kHz) Channel1 (MIC/LINE): -50 to -20 dBu, Channel2, 3 (LINE): -20 dBu Nominal Output Level (1 kHz) LINE OUT: +4 dBu, SUB WOOFER OUT: +4 dBu Speakers 25 cm (10 inches) x 1, Tweeter x 1 Connectors Channel 1 Input Jack (XLR Type, 1/4 inch Phone Type), Channel 2 Input Jack (1/4 inch Phone Type), Channel 3 Input Jack (1/4 inch Phone Type), AUX IN Jack (RCA Phone Type), LINE OUT Jack (1/4 inch Phone Type), SUB WOOFER OUT Jack (1/4 inch Phone Type), PHONES Jack (Stereo 1/4 inch Phone Type, Mono signal output) Power Supply AC 117/230/240 V Size and Weight Width 415 mm 16-3/8 inches Depth 290 mm 11-7/16 inches Height 405 mm 16 inches Weight 12.0 kg 26 lbs. 8 oz. 0 dBu = 0.775 Vrms. The specifications are subject to change without notice. Get Your Roland KC-60 3-Channel 40w Mixin

Roland Mobile Cube Battery Powered Stereo Amplifier $169 Roland Mobile Cube Battery Powered Stereo Amplifier The Roland Mobile Cube is an all-purpose battery powered amplifer. The Roland Mobile Cube is designed for use anywhere, anytime and can handle all types of electronic instruments and audio devices: just plug in, turn on, and jam for up to 15 battery-powered hours. Although perfect for guitarists, the Roland Mobile Cube can also accommodate microphones, keyboards, MP3 players, and more; no other instrument amplifier of this size has a stereo input port. Use it as a practice amp at home, while travelling and for performing indoors or out. It’s ideal for parties, karaoke, and vocal lessons. The Roland Mobile Cube even connects to a mic stand for use as a monitor speaker or micro PA. At just 280 mm (W) x 108 mm (D) x 177 mm (H), the Roland Mobile Cube is no larger than a briefcase. At its heart are two high-performance 2.5-watt speakers which deliver powerful stereo sound that defies the amp’s diminutive size. Finally, the Roland Mobile Cube is equipped with Roland’s legendary FX engine, offering high-quality stereo reverb and chorus effects. Sweeten vocals, add fire to guitar tone, immerse mixes in a rich stereo sound field or use the newly-developed centre cancel function for minimizing vocals in pre-recorded music – great for karaoke and play-along performance. Features: Battery-powered amplifier for anyone, anywhere, anytime 5-watt (2.5-watt + 2.5-watt) stereo power with two high-performance 10cm (4") speakers Inputs for microphone, stereo-instrument, and stereo AUX; headphone output Centre Cancel function for karaoke Built-in stereo reverb/chorus, distortion and more Dedicated strap included for easy portability Get Your Roland Mobile Cube Battery Powered Stereo Amplifier Today!

Vocopro DA-9800RV Digital Karaoke Mixing Amplifier $679 Vocopro DA-9800RV Digital Karaoke Mixing Amplifier We proudly present the worlds first Karaoke Mixing Amplifier with Dual Digital Processors… the DA-9800 RV! Singers and KJ’s can now create the "ideal" vocal sound by blending the Digital Echo effect with the new DSP Reverb, adding a near 3D sound to their Microphone Channels! For music, a handy built-in Sonic Enhancer will transform the sound of your music from a "background" sound to an "outward and lively" sound. Also, with the built-in Studio Quality Digital Key Controller, users can change the key of their music 15-steps for a total of 7 whole notes, so no more missing out on songs that aren’t in your natural vocal range! The DA-9800RV is soon to be the industry standard and the unit singers ask for when they want the best. Features: 300W + 300W max power output (4 ohms) 150W + 150W continuous power output (4 ohms) 4 speaker output for increased sound coverage 15-step DSP Key Controller with Auto Reset Digital Echo with Repeat and Delay controls DSP Reverb for exceptional sounding vocals Sonic enhancer with High/Low frequency controls 6 Microphone Inputs with Bass and Treble controls Shipping Dimensions: 18" (L) x 20 1/2" (W) x 9" (H) Shipping Weight: 30 lbs World’s First Digital Key Control Mixing Amp w/Digital Reverb Get Your Vocopro DA-9800RV Digital Karaoke Mixing Amplifier Today!

QSC Amplifier OT-300a $90 QSC Amplifier OT-300a The OT-300a is a heavy-duty step-up autoformer accessory that adapts any power amplifier output with a maximum voltage of approximately 17 to 35 volts to drive a 70-volt distributed line with up to 300 watts. Four voltage taps let you choose the one most appropriate for the amplifier. Conversely, the OT-300a can be used as a high-power speaker transformer, driving loudspeakers with up to 300 watts from a 70-volt distributed line. The OT-300a autoformer is compatible with any amplifier rated at up to approximately 350 watts at 4 ohms. It has built-on brackets for convenient mounting on a panel or in an equipment rack. Compatible Amplifier Models: USA 400 RMX 850 MX 700 PLX 1202 PowerLight 1.0 CX 302 and CX 254 DCA 1222 and DCA 1824 Any amplifier rated at approximately 70 to 350 watts at 4 ohms Get Your QSC Amplifier OT-300a Today!

AXL 100W Keyboard Amp $374.99 AXL 100W Keyboard Amp AXL 100W Keyboard Amp Description: Solid state keyboard amplifiers with versatile input options and up to 100 watts of output power. Provides clean tones packed with punch. KB-120 KEYBOARD AMP The KB-120 Keyboard Amp has 100 watts RMS power, a 12″ Alphatone speaker and four inputs with independent volume controls. The inputs include 1/4″, XLR and RCA jacks. Sonically, the amplifier has excellent bass and punch whenever needed, and nice transparent sound with little or no coloring. This amp gives you the ability to hear what you’re playing and enhances the keyboard sound the PA might miss. This amplifier is easy to set up and has a vintage style cabinet with a classy maroon finish that takes players back to another time. Created by respected product designers with a great understanding for vintage style cabinets, this amp is the perfect combination of power and value. AXL 100W Keyboard Amp Features: 100 Watts RMS 1 x 12″ AlphaTone Speaker Hi-Frequency Tweeter 3-Band EQ 1/4″, XLR & RCA Inputs 4 Inputs with Volume Controls 1/4″ Output Headphone Jack Maroon Tolex Cabinet 18″ x 19″ x 13.25″ at 48 lbs. Get your AXL 100W Keyboard Amp today!

Roland KC-150 4-Channel 65w Mixing Keyboard Amplifier $379 Roland KC-150 4-Channel 65w Mixing Keyboard Amplifier The KC-150 is a compact 65-watt amp with 4-channel capability including Auxiliary and Microphone inputs. The KC-150 can also be expanded with an optional subwoofer for a powerful low-end boost. Affordable 4-channel keyboard amplifier with 65-watt/12-inch speaker and piezo tweeter Includes stereo Auxiliary input (RCA) and XLR Microphone input 2-band EQ and Subwoofer output compatible with new KCW-1 Equipped with Headphones output Roland KC-150 Details: Up to 4-Channel Mixing KC-series amplifiers feature a flexible mixing section designed with the performing musician in mind. The KC-150 features up to four mono inputs, and includes a Microphone input and stereo Auxiliary input for connecting CD players. Subwoofer-Ready Want more low end? Simply add an optional subwoofer like Roland’s new KCW-1. Connections are easy, thanks to the Subwoofer output found on all new KC amps. Now even the most affordable models can sound huge! Made for the Road KC amps are built for life on the road. All models have built-in handles for easier transportation (the KC-550 also includes casters) and a rugged design with heavy-duty carpeting, protective edges and an all-metal grille. Specifications: Output Rated Power Output 65 W Speakers 30 cm (12 inches) x 1, Tweeter x 1 Nominal Input Level (1 kHz) Channel 1 (MIC/LINE) -50 to -20 dBu Channel 2, 3, 4 (LINE) -20 dBu AUX IN -10 dBu Nominal Output Level (1 kHz) LINE OUT +4 dBu SUB WOOFER OUT +4 dBu Controls Channel 1 (MIC/LINE) Volume Knob Channel 2 (LINE) Volume Knob Channel 3 (LINE) Volume Knob Channel 4 (MONITOR) Volume Knob EQ (LOW) Knob EQ (HIGH) knob VOLUME knob POWER Switch Indicator POWER Connectors Channel 1 Input Jacks (XLR type, 1/4″ phone type) Channel 2 Input Jack (1/4″ phone type) Channel 3 Input Jack (1/4″ phone type) Channel 4 Input Jack (1/4″ phone type) AUX IN Jacks (RCA phono type) LINE OUT Jack (1/4″ phone type) SUB WOOFER OUT Jack (1/4″ phone type) PHONES Jack (1/4″ TRS phone type, mono signal output) Power Supply Voltage AC 117 V, AC 230 V, AC 240 V Power Consumption 55 W Accessory Owner’s Manual Size and Weight Width 480 mm 18-15/16 inches Depth 295 mm 11-5/8 inches Height 435 mm 17-1/8 inches Weight 14.0 kg 30 lbs. 14 oz. 0 dBu = 0.775 Vrms The specifications are subject to change without notice. Get Your Roland KC-150 4-Channel 65w Mixing Keyboard Amplifier Today

Roland SA-300 Stage Amplifier W/ 4 Channels, 2.1 Speaker System & Subwoofer $1299 Roland SA-300 Stage Amplifier W/ 4 Channels, 2.1 Speaker System & Subwoofer Lightweight, Powerful, Portable PA The versatile SA-300 is built to handle nearly any type of audio you throw at it: microphones, rhythm machines, keyboards, CD players, etc. With full-range, high-quality stereo 2.1 ch sound, sturdy construction, built-in effects, advanced anti-feedback control, two-piece transportability, loads of I/O options, and more, the SA-300 is a traveling musician’s dream. Features: Four-channel portable stereo PA system Lightweight (easy to carry) yet powerful Advanced anti-feedback function Separate reverb effects for each channel (plus delay for ch 1 and ch 2) Low Boost switch for powerful low-end Wide Switch for big stereo effect, plus 3-band EQ Vocal Enhancer for clear, strong vocals Detachable woofer unit for easy transport Roland SA-300 Details: All-In-One Solution Lightweight yet feature-packed, the SA-300 is powered by an internal 350W amplifier, which drives a stereo pair of high-performance 6.5-inch speakers; a 200W amp drives the 12-inch woofer unit for booming bottom-end support. A 4-channel mixer is built in, with each channel equipped with a stereo and mic input (channels 3 and 4 are phantom powered). Vocalists can sing with confidence thanks to the SA-300′s anti-feedback function and dedicated vocal effects. Also included is a Low-Boost switch for extra beef, plus stereo reverb for a rich, ambient sound. Transport Friendly For the utmost in traveling convenience, the SA-300 can be detached into two easy-to-carry components (each with handles), rather than one cumbersome, heavy box. At just 19kg (combined weight), the SA-300 is the lightest portable PA in its class. As an option, the top unit can be used independent of the bass unit; it self-adjusts to function as a standalone stereo speaker unit. The top unit can even be mounted on a speaker stand for perfect placement. Sound Control Features Each of the SA-300′s four channels is equipped with an independently adjustable reverb effect. For channels 1 and 2, you can switch to a delay effect, and also add a Voice Enhancer to give your vocals more definition and clarity. Adjust and enhance the overall sound with the 3-band EQ knobs, use the Low Boost feature to inject some serious bottom-end power into your sound, and flip the Wide switch for a big stereo sound. Unlike conventional PA systems, SA-300 can be placed behind the player or singer, thanks to the onboard anti-feedback function. The SA-300 avoids feedback before it occurs, so singers can roam the stage with confidence, and with 350 watts of powerful sound behind at their back. This anti-feedback feature can be activated from the unit, or from an optional footswitch (BOSS FS-5U) for hands-free operation. Versatile I/O No matter what instrument, microphone, or musical device you wish to use, the SA-300 can accommodate it. Each of its four channels accepts microphones via XLR inputs, with channels 3 an

QSC Amplifier OT-600 $130 QSC Amplifier OT-600 The OT-600 is a heavy-duty step-up autoformer accessory that adapts any power amplifier output with a maximum voltage of approximately 40 to 50 volts to drive a 70-volt distributed line with up to 600 watts. Three voltage taps let you choose the one most appropriate for the amplifier. The OT-600 can also be used to drive a 100-volt line when used with an amplifier with a maximum output level of 55 to 70 volts. Conversely, the OT-600 can be used as a high-power speaker transformer,driving loudspeakers with up to 600 watts from a 70-volt distributed line. The OT-600 autoformer is compatible with any amplifier rated at approximately 350 to 650 watts at 4 ohms. It has built-on brackets for convenient mounting on a panel or in an equipment rack. Compatible Amplifier Models: USA 900 and USA 1310 RMX 1450 MX 1500a and MX 2000a PLX 1602 PowerLight 1.0HV, PowerLight 1.4, and PowerLight 1.8 CX 502 and CX 404 DCA 1622 and DCA 1644 Any amplifier rated at approximately 350 to 650 watts at 4 ohms Get Your QSC Amplifier OT-600 Today!

Vocopro VP-300 PRO Professional Power Amplifier $249 Vocopro VP-300 PRO Professional Power Amplifier If the VP-600X is more power than you need, we offer the VP-300 PRO. With the same clean power and dependability as it’s big brother the VP-600X, the VP-300 PRO is a top runner for medium-level power. It’s 100dB signal to noise ratio insures the clearest audio signal and both 1/4" and XLR input jacks give the most versatility in setting up. And to keep the heat at bay, the variable speed forced air fan will keep keep the temperatures down. With a sturdy single-space 19" rack mountable design, it will be ready to go when you are! Features: 150W +150W RMS (4 ohms) 300W + 300W max (4 ohms) THD: 0.05% Frequency response: 20HZ-20KHZ 1/4" or XLR input Signal to Noise Ratio: Less than 100dB Input sensitivity: +4dB Shipping Dimensions: 13" (L) x 21" (W) x 5 1/2" (H) Shipping Weight:18 lbs Get Your Vocopro VP-300 PRO Professional Power Amplifier Today!

Moog Theremin Amplifier $129.99 Moog Theremin Amplifier Overview This is the perfect amp for your Etherwave! 15-watts, heavy-duty 8-inch speaker, 3-band EQ, 2 inputs, and headphone output. Great sound at a great price. 12.25″ x 12.25″ x 7.25″ 110 VAC input only.

QSC Amplifier LF-3 $165 QSC Amplifier LF-3 The LF-3 Low-Frequency filter, when used with the XC-3 two-way crossover, allows the low-frequency crossover to create a three way active system. The unit mounts to the rear panel of a two-channel DCA, CX, or ISA amplifier to save cost and rack space. The output signal and the operating power for the unit are conducted through the amplifier’s DataPort, eliminating added external wiring or power transformers. The LF-3 features two discrete channels with 4th-order Linkwitz-Riley low-pass filters with 24 dB/octave slopes. Each channel has an all-pass filter providing delay for time alignment of low frequency drivers with mid or high-frequency drivers, as well as a trim control providing 0 to 20 dB of attenuation for matching levels among the various frequency bands. Frequency and delay parameters for both channels are set individually. One LF-3 mounted on an amplifier will support two other amplifiers with XC-3 accessories installed, even in stereo. Get Your QSC Amplifier LF-3 Today!