Crest Audio LQ 10P user manual Hum or Buzz, Distorted or Fuzzy Sound

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TROUBLESHOOTING

If there is still no output, make sure the volume control has been turned up to a reasonable level (one-third to halfway).

Has the LQ 10P been in direct sunlight or excessive heat? If so, it may have triggered the thermal protection.Turn off the unit and cool as best as the situation allows. (DO NOT use liquids for this purpose!)

If there is still no output, it may help to read the owner’s manual completely.

Hum or Buzz

This can be AC outlet-related.Try plugging the LQ 10P into a different AC outlet. Sometimes using a different circuit (breaker) for the mixer and the LQ 10P can cause hum problems.

Check to make sure that shielded cables have been used to get the signal to the LQ 10P’s inputs. Speaker cables with 1/4" or XLR plugs are very prone to hum.

Check to make sure light dimmers are not on the same circuit as the LQ 10P or the mixer (or any source devices). If light dimmers are in use, then it may be necessary to turn them fully on or fully off to eliminate or reduce hum to tolerable levels.This is an AC wiring/light dimmer interference problem, and not the fault of the LQ 10P.

The third wire ground plug on the AC plug should NEVER be removed or broken off.This seriously compromises safety.

Distorted or Fuzzy Sound

First, make sure the mixer (or signal source) is not clipping or being overdriven.This can sometimes occur when the volume control (6) on the LQ 10P has been set too low (too far counterclockwise), and it takes a lot of signal to drive the unit to full power.

Make sure the input plugs are fully seated in the input jacks (5) on the rear panel of the LQ 10P.

Check to see that the proper inputs are being used (5) for line level signals. Make sure that a power amp has not been plugged into the input jacks of the LQ 10P.

If an extension cord is being used to provide the AC power to the unit, is it of sufficient current capacity and not also being used to supply power to any other units? See “GETTING AC POWER TO THE LQ 10P” for details.

The LQ 10P has built-in EQ to extend and smooth the natural response of the speakers in the system. Bass boost and HF EQ have been applied, and the system has a nominally flat response and should require little, if any, additional EQ. If excessive additional bass boost or HF boost have been added externally to the LQ 10P, it may cause premature overload at high SPLs.Try backing off any external EQ (mixer, rack equalizer) and see if that clears up any tendency to distort.

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Contents LQ 10P Page Important Safety Instructions Introduction FeaturesON-OFF Switch Panel FeaturesRear Panel Features Fuse IEC Power Cord ConnectionLevel Front Panel FeaturesPower LED Line IN/THRUOperating Instructions USE of the LQ 10P Flying the LQ 10P Getting AC Power to the Crest LQ 10PUSE of LQ 10P with a Subwoofer Special note for permanent installationGetting a Signal to the LQ 10P Level Control AdjustmentNo output at all TroubleshootingApplications Distorted or Fuzzy Sound Hum or BuzzTouch up Care and MaintenanceCleaning Sunlight/HeatDescription Architectural and Engineering SpecificationsArchitectural & Engineering Specifications Transducer complement Specifications LQ 10PGraphics Directivity IndexHarmonic Distortion 1% Rated Power DB per Division Patterns15 kHz KHz 12.5 kHz LQ 10P Vertical Polar Patterns 10 kHz LQ 10P Mounting Dimensions Introduction Introducción CaracterísticasConexi N Para Cable DE Corriente IEC Panel TraseroCaracter sticas del Panel Trasero FusibleConexiones DE Intercomexi N LED DE EncendidoEntrada DE LŒNEA/A Trav S NivelNunca quites la rejilla metálica de protección Instrucciones DE Operación PrecaucionesLlevar Corriente EL Ctrica AL LQ 10P DE Crest Volando EL LQ 10PCuidado nota para el ingeniero estructural Llevando SE AL AL LQ 10P Ajuste DE Control DE VolumenNota Especial Para Instalaciones Permanentes USO DEL LQ 10P CON UN SubwooferAplicaciones Sonido Distorsionado o Sucio ProblemasNo Hay Salida RuidosRetoques Cuidado Y MantenimientoCalor/Luz del sol LimpiezaEspecificaciones Arquitect nicas y de Ingenier a Verificar la Seguridad de las PiezasDescripci N Volando EL LQ 10P Fran AIS Caract ristiques InstallationInterrupteur ON-OFF Rear Panel FeaturesPanel Caractéristiques Connecteur IECJacks LOOP-THRU VolumeLED D Alimentation ENTREES/SORTIES Primaires’ENLEVEZ PAS LA Grille DE Protection Metal Manuel D’UTILISATIONUtilisation Avec Subwoofer Envoyer UN Signal a Votre LQ-10PSuspendre LA LQ-10P Alimenter Votre LQ-10PReglage DU Volume Son distordu Trouver L Origine DE Problemes Courants ApplicationsAucun signal en sortie Souffle et bourdonnementMarques et rayures MaintenanceExposition au soleil/Chaleur NettoyageIngenieurie Suspendre LA LQ-10P DescriptionMerkmale DeutschAnschluss DES IEC-NETZKABELS Funktionen AN DER RückseiteFunktionen an der RÜckseite SicherungLINK-KLINKEN POWER-LEDBetriebsanleitung Achtung ACHTUNG! Anmerkung f r den Bauingenieur Fliegen DES LQ 10PEinsatz DES LQ 10P MIT Einem Subwoofer Besondere Hinweise f r die DauerinstallationSenden VON Signalen AN DEN LQ 10P Produkten DER LQ-SERIE Einsatz Mehrerer LQ 10Ps MIT Anderen PowerEinstellen DER Pegelregler Keine Ausgangsleistung FehlersucheEinsatzbereiche Verzerrter oder verschwommener Sound Brummen oder SummenBerlackieren Pflege UND WartungSonnenlicht bzw. Hitze ReinigungBauliche und technische Spezifikationen Berpr fung der Sicherheit der BeschlagteileBeschreibung Fliegen DES LQ 10P Page Warranty Statement Crest Audio Limited Warranty80304921

LQ 10P specifications

Crest Audio has long been synonymous with quality and reliability in the professional audio industry, and the Crest Audio LQ 10P is a prime example of their commitment to excellence. This 10-inch two-way powered loudspeaker offers a versatile solution for portable sound reinforcement, making it an ideal choice for musicians, DJs, and corporate events.

One of the standout features of the LQ 10P is its exceptionally detailed sound reproduction. The speaker is powered by a high-efficiency Class D amplifier, delivering up to 900 watts of peak power. This robust power handling allows for a wide dynamic range, providing clear vocals and punchy bass that can fill various types of venues. The 10-inch woofer, paired with a 1-inch high-frequency compression driver, ensures that the audio output is both powerful and precise, catering to a range of musical genres and speaking applications.

The LQ 10P incorporates advanced DSP technology, which enhances audio performance and ensures optimal sound management. The integrated DSP includes EQ settings that allow users to customize the audio output based on the specific environment, delivering tailored sound that meets varying acoustic challenges. Additionally, the speaker features adjustable volume controls, facilitating easy adjustments on the fly.

Portability is another key characteristic of the LQ 10P. It has a lightweight design that makes transport between gigs convenient. The rugged construction ensures durability, allowing it to withstand the rigors of frequent use in different settings. Integrated handles and pole-mountable options increase its versatility, whether used as a standalone unit or part of a larger sound system.

Connectivity is simplified with the LQ 10P, as it features multiple input options, including XLR/TRS combo inputs and through outputs. This flexibility ensures compatibility with a wide range of audio sources, including mixers and instruments.

In summary, the Crest Audio LQ 10P is a powerful, versatile, and durable powered loudspeaker, offering high-quality sound reproduction and advanced features suitable for various applications. With its compact design, user-friendly controls, and robust performance, the LQ 10P continues to make its mark in the professional audio market. Whether for a live performance or a corporate presentation, this speaker provides the reliability and sound quality that audio professionals demand.
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