Peavey 115P Hum or Buzz, Rattling or Buzzing, Excessive High-Frequency Output from the Subwoofer

Page 10

If the Impulse 115P has been subjected to direct sunlight or excessive heat the built-in thermal protection may have been triggered. If you suspect this may be the cause‚ turn off the Impulse 115P and let it cool for a sufficient amount of time.

If there is still no output‚ contact your authorized Peavey dealer or the Peavey International Service Center.

Hum or Buzz

If the Impulse 115P is producing a hum or buzz‚ it could be AC-outlet related. Try plugging the unit into a different AC outlet. Sometimes‚ if a different circuit (breaker) is used for the mixer and the Impulse 115P‚ it can cause hum problems.

Ensure that shielded cables have been used to route the signal to the Impulse 115P’s inputs. If speaker cables with 1/4" plugs are used as an input cable instead of a shielded cable‚ it will be prone to hum or buzz.

Hum may be ground loop related. Two ground lift switches are provided on the Impulse 115P. One is located at the input jack group (10a) and the other at the High-pass output jacks (10b). Check any input changes carefully by first‚ turning down the volume control before plugging and unplugging cables or switching ground lifts.

Check to make sure light dimmers are not on the same circuit as the Impulse 115P‚ the mixer or any source devices. If light dimmers are used‚ then it may be necessary to turn them full On or Off to eliminate or reduce hum. This is a typical AC wiring/light dimmer interference problem and not a design flaw of the Impulse 115P. The third wire ground plug on the AC plug should NEVER be removed or broken off.

Rattling or Buzzing

The Impulse 115P produces extremely high output capacity at very low frequencies. It is capable of vibrating objects in any room that are not solidly affixed or mounted. It can excite light fixtures‚ suspended ceilings‚ racks‚ shelves‚ tables‚ chairs‚ equipment cases‚ lift handles on equipment‚ casters‚ doors‚ windows‚ etc. Be sure to check where the sound is coming from as it is likely coming from one of these sources and not a fault of the unit.

Excessive High-Frequency Output from the Subwoofer

Ensure the Mono button (5d) is switched to the On (In) position. This should eliminate any high frequency output from the subwoofer.

If the unit is being used in 3-channel stereo mode‚ some high frequencies may be generated by the subwoofer when a high-frequency signal is present only in one channel. This is normal and should not present a problem.

Male Vocals Sound Muddy or Boomy

The level of the subwoofer may be turned up too high. The kosmos settings may be set too high. Turn down the subwoofer level by turning down the Quake/Sub level control (7a) until the sound improves. To reduce the amount of kosmos processing without changing the subwoofer level‚ turn the Master System level control (6) down and the Quake/Sub level control (7a) up until the subwoofer is back at the previous level. When in 3-channel operation‚ turn the Quake/Sub level control (7a) down.

Distorted or Fuzzy Sound

First‚ ensure the mixer (signal source) is not clipping or being overdriven. Make sure the volume control

(6)on the Impulse 115P has not been set too low. Remember‚ it takes a lot of signal to drive the unit to full power.

Check that the input plugs are fully seated in the input jacks (5) on the rear panel of the Impulse 115P. Ensure that the proper inputs are being used for the line level signals and that a power amp has NOT been plugged into one of the input jacks of the Impulse 115P.

If an extension cord is being used to supply AC power to the unit‚ ensure that it is of sufficient current capacity and that it is not also being used to supply power to any other device.

10

Page 9 Page 11
Image 10
Page 9 Page 11
Contents Impulse 115P Powered Subwoofer · Operations Manual Page Important Safety Instructions Sound Level dBA, Slow ResponseFeatures DescriptionIEC Power Cord Connection FuseSpeaker Level Powered Outputs Power SwitchPower LED Ground Lift SwitchesAC Power Using the Pole Stand BaseGetting a Signal to the Impulse 115P High-Pass Outputs Volume Control AdjustmentAdjusting the kosmos Processing Level Left & Right OutputsTroubleshooting Excessive High-Frequency Output from the Subwoofer Hum or BuzzRattling or Buzzing Male Vocals Sound Muddy or BoomySunlight/Heat Care & MaintenanceCleaning TouchupHookup Diagrams Live Application Non-powered Mixer Add-on Use DJ Application Channel Stereo Operation Page 115P Block Diagram Frequency Response Curves THD & IM Merkmale Netzbetriebener SubwooferBeschreibung A R P a N E L IEC-Netzkabelanschluss Power-SchalterPower-LED EingängeVorsichtsmaßnahmen Page Page Left/Right Outputs Fehlersuche Page Page Frequency Response Curves Spezifikationen Características DescripciónFusible Conexión del cable de corriente IECEntradas Interruptor de CorrienteLED de Corriente Nivel Maestro del SistemaPrecauciones Usando la Base de AtrilSalidas de Agudos Ajuste DE Control DE VolumenAjuste del Nivel de Proceso del kosmos Salidas Izquierda y DerechaMúltiples Impulse 115P u otros productos amplificados Impulse 115P Sistema Estéreo de 3 CanalesImpulse 115Ps con 2 Parlantes de Rango Completo AplicacionesLa Voz Masculina Suena Muy Grave y Lodosa RuidosVibraciones Externas Sonido Distorsionado o SucioLimpieza Cuidado Y MantenimientoCalor/Luz del sol RetoquesFrequency Response Curves Especificaciones Caractéristiques Connecteur d’Alimentation IEC Interrupteur d’AlimentationEntrées Utiliser l’Adaptateur de Pole Envoyer un Signal à votre Impulse 115PAlimentation électrique Sorties Hautes-Fréquences High-Pass Contrôle de VolumeAjustez les contrôles du kosmos Sorties Droite & GaucheImpulse 115Ps avec 2 Enceintes Satellites Pas de Signal en SortieImpulse 115P Système Stéréo 3-Enceintes Utilisation de Multiple Impulse 115PSorties Excessives de Hautes Fréquences du Caisson Sub MaintenanceSaturation/Craquement de Haut-parleur Voix d’Hommes avec Trop de Dynamique dans les GravesNettoyage Exposition au soleil/ChaleurAccastillage de fixation Frequency Response Curves Impulse 115P Peavey Electronics Corporation Limited Warranty Product Category80304936

115P specifications

The Peavey 115P is a robust and versatile powered speaker designed to meet the demands of various live sound and monitoring applications. Renowned for its compatibility with a range of audio systems, the 115P is an essential tool for musicians, DJs, and audio professionals looking for reliable performance and clarity.

At the heart of the Peavey 115P is its 15-inch woofer, which delivers powerful bass response and rich mids, making it suitable for everything from music performances to public speaking engagements. This woofer is complemented by a high-frequency compression driver that ensures crisp, articulate highs, blending seamlessly with the low-end sound to provide a well-rounded audio experience.

One of the standout features of the Peavey 115P is its integrated power amplifier, which boasts a substantial output. This amplifier eliminates the need for external power sources, making setup quicker and easier. Additionally, the speaker's onboard controls include a master volume knob and EQ settings, giving users fine control over their sound.

The 115P employs Peavey’s patented Circuitry, including Volume and Equalization controls that enhance overall sound quality. The speaker also incorporates a discrete Class D amplifier section, known for its efficiency and lightweight design, ensuring that the 115P not only sounds excellent but is also easy to transport.

Connectivity is another strong suit of the Peavey 115P. It features balanced XLR inputs, making it easy to connect to a variety of devices, including mixers and microphones. The speaker also includes a loop-through output for daisy-chaining additional speakers, allowing for expanded coverage in larger venues.

Constructed with durability in mind, the Peavey 115P is housed in a rugged enclosure that stands up to the rigors of touring and frequent transport. Its design includes integrated handles for easy lifting and maneuvering, and its lightweight profile adds to its portability.

In summary, the Peavey 115P is a powerful, flexible speaker system that excels in delivering high-quality audio performance for a variety of applications. With its impressive features, reliable technology, and durable construction, it is an excellent choice for both professional and amateur sound engineers looking for outstanding sound reinforcement. Whether you are performing at a small venue or using it for a large event, the Peavey 115P is engineered to meet your sound needs effectively.
Top Page Image Contents