Peavey QF215, QF131, Q215B User Manual

SERIES

Q Series Graphic Equalizers

Q215B

QF215

QF131

™

OPERATING MANUAL

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Q™SERIES EQUALIZERS

Thank you for purchasing a Peavey Electronics Q Series graphic equalizer. The Q family features two dual-channel models and one single-channel unit, all incorporating Peavey’s legendary lownoise, low-distortion design. Ruggedly constructed, Q Series EQs have 45 mm, center-detented control sliders enclosed in metal for durability. These two rack-space units also offer ±15 dB gain control and an LED display indicating output level. Other shared features include switchable low-cut filters, +21 dBu balanced inputs and outputs, and bypass switches. Q Series equalizer filters are set at ISO center frequencies within 3% accuracy. Whether on stage, in the studio, or simply tweaking your home hi-fi system, the Q Series has an EQ for you.

FEATURES

Q 215B

• Dual channel (15 bands per channel)

• 2/3 octave filter sets

• 25 Hz to 16 kHz effective equalization range

• Constant Q filters

• 15 dB boost / 15 dB cut per band

• Output level LEDs (-12 to +12 dB)

• 18 dB per octave 40 Hz low-cut filter with status LED

• 1/4" TRS inputs and outputs for balanced or unbalanced operation

• Bypass switch with status LED

• 15 dB boost / 15 dB cut Gain Control

QF 215

• Dual channel (15 bands per channel)

• 2/3 octave filter sets

• 25 Hz to 16 kHz effective equalization range

• Constant Q filters

• 12 dB boost / 18 dB cut per band

• Output level LEDs (-12 to +12 dB)

• 18 dB per octave 40 Hz low-cut filter with status LED

• XLR and 1/4" TRS inputs/outputs for balanced or unbalanced operation

• Bypass switch with status LED

• New FLS (Feedback Locating System) circuitry for improved sensitivity

• 15 dB boost / 15 dB cut Gain Control

QF 131

• Single channel (31 band)

• 1/3 octave filter sets

• 20 Hz to 20 kHz effective equalization range

• Constant Q filters

• 12 dB boost / 18 dB cut per band

• Output level LEDs (-12 to +12 dB)

• 18 dB per octave 40 Hz low-cut filter with status LED

• XLR and 1/4" TRS inputs/outputs for balanced or unbalanced operation

• Bypass switch with status LED

• New FLS

(Feedback Locating System) circuitry for improved sensitivity

• 15 dB boost / 15 dB cut Gain Control

ENGLISH

EQUALIZATION PROCESS

Always begin the equalization process with all sliders at their center-detent (flat response) positions. For units equipped with FLS

, increase system volume until slight feedback occurs. Note the LED(s) that illuminate, and lower the corresponding fader(s) until feedback is eliminated. In other words, see the light pull down the fader. For the Q 215B, lower each fader until the feedback frequency is found. Lower the faders in small amounts to avoid adversely affecting sound quality. Likewise, excessive boosting of a frequency may result in feedback.

EXERCISE CAUTION WHEN ATTEMPTING TO BOOST FREQUENCIES BELOW SPEAKER SYSTEM TRANSDUCER CUT-OFF.

Typical sound reinforcement enclosures are not designed for 20 Hz performance, and transducer damage could result from “over-boosting” low frequencies. Excessive boost at very low frequencies could also limit overall system headroom. Engaging the 40 Hz low-cut filter is the best way to avoid these problems.

NOTE: Superb tonality, absence of feedback, and great-sounding systems may not be possible with any graphic equalizer. All other system components must be of high quality and designed for the application. No amount of equalization will correct an acoustically bad room, bad microphone/speaker arrangement, or completely correct the response curve of a poor loudspeaker.

FEATURES AND CONTROLS

FRONT PANEL

(1) OUTPUT LEVEL LED METER

This LED array indicates output level from –12 dB to +12 dB.

(2) GAIN

This calibrated, detented control regulates overall gain of the EQUALIZER SECTION (3). Unity gain throughout the signal chain can be maintained by recovering lost signal gain at this point. The equalization process may result in noticeable signal loss. To compensate for this loss, engage the BYPASS (5) switch and compare the signal level with that of the equalized level. Increase the GAIN control until the equalized level approximates that of the bypassed level. Let your ears be your guide.

142 1 23 3

5 4 5 6

(3) EQUALIZER SECTION

These calibrated, detented controls adjust the amount of cut or boost at their respective frequencies. They are adjustable from 18 dB cut to 12 dB boost (15 dB cut to 15 dB boost on the 215B). For units equipped with FLS, the LED at the top of each band will illuminate as an indication of feedback at that frequency.

(4) LOW-CUT FILTER

This switch activates the low-cut filter that rejects frequencies below 40 Hz. Frequency roll off is 18 dB per octave with the switch engaged. This filter will operate even with the BYPASS (5) switch engaged. The adjacent red LED indicates activation.

(5) BYPASS

This switch allows the signal to bypass the unit with the exception of the LOW-CUT FILTER (4). When this switch is engaged, the signal is routed from INPUT (10 and 11) though the low-cut filter to output (8 and 9).

(6) POWER

This 2-position rocker switch applies mains power to the unit when in the ON position. The adjacent green LED indicates mains power activation.

REAR PANEL

(7) IEC MAINS CONNECTOR

This is a standard IEC power connector. An AC mains cord having the appropriate AC plug and ratings for the intended operating voltage is included in the carton.

Never break off the ground pin on any equipment. It is provided for your safety. If the outlet used does not have a ground pin, a suitable grounding adapter should be used and the third wire should be grounded properly. To prevent the risk of shock or fire hazard, always be sure that the equalizer and all associated equipment is properly grounded.

NOTE: FOR UK ONLY

If the colors of the wires in the mains lead of this unit do not correspond with the colored markings identifying the terminals in your plug, proceed as follows: (1) The wire that is colored green and yellow must be connected to the terminal that is marked by the letter E, the earth symbol, colored green, or colored green and yellow. (2) The wire that is colored blue must be connected to the terminal that is marked with the letter N or the color black. (3) The wire that is colored brown must be connected to the terminal that lis marked with the letter L or the color red.

789 10 11

9 10

(8) TRS BALANCED OUTPUT

These 1/4" Tip/Ring/Sleeve (stereo) jacks provide balanced output when used with TRS connectors and 2-conductor shielded cables. When used with a mono 1/4" (TS) phone plug, the output is unbalanced.

(9) XLR OUTPUT

These male 3-pin connectors provide balanced output when used with female XLR connectors.

(10) TRS BALANCED INPUT

These1/4" Tip/Ring/Sleeve (stereo) jacks provide balanced input when used with TRS connectors and 2-conductor shielded cables. When used with mono 1/4" (TS) phone plugs, the input is unbalanced.

(11) XLR INPUT

These female 3-pin connectors provide balanced input when used with male XLR connectors.

™

SERIES BLOCK DIAGRAM

SPECIFICATIONS* Q™F131 Q™ 215B Q™F215

Filter Q 4.77 2.3 2.3

Filter Frequencies (Hz) 20, 25, 32, 40, 50, 63, 80, 25, 40, 63, 100, 160 25, 40, 63, 100, 160,

100, 125, 160, 200, 250, 250, 400, 630, 1 K, 1.6 K, 250, 400, 630, 1 K, 1.6 K, 315, 400, 500, 630, 800, 2.5K, 4 K, 6.3K, 10 K, 16 K 2.5 K, 4 K, 6.3 K, 10 K, 16 K 1 K, 1.25 K, 1.6 K, 2 K, 2.5 K,

3.15 K, 4 K, 5 K, 6.3 K, 8 K, 10 K, 12.5 K, 16 K, 20 K

Maximum Boost and Cut Filter +12 dB / -18 dB +15 dB / -15 dB +12 dB / -18 dB

Output Noise

Bypass Mode -101 dBV -100 dBV -100 dBV Filter Mode (Flat) -95 dBV -98 dBV -98 dBV

ALL MODELS

Frequency Response: ± 1 dB (20 Hz – 20 kHz)

Distortion: .002% (20 Hz – 20 kHz)

Input Impedance: Balanced 20 K ohms (equal impedances to ground)

Output Impedance: 660 ohms

Maximum Input Level: +18 dBV (8 V RMS)

Maximum Output Level: -18 dBV unbalanced; +21 dBV balanced

Nominal Input Level: 0 dBV (1 V RMS)

Nominal Output Level: 0 dBV (1 V RMS)

Input Headroom: Nominal 18dB

Output Headroom: 18 dB

Maximum Boost and Cut Gain: +15 dB / -15 dB

Low Cut Filter: 40 Hz @ 18 dB per octave

Power Consumption: Domestic: 120 VAC, 60 Hz, 12 Watts

Export: 220/230 VAC, 50/60 Hz, 12 Watts

Dimension: 3.5" (89 mm) H x 19" (483 mm) W x 7.375" (187 mm) D

Weight: 7.8 lbs. (3.54 kg)

* All specifications are typical unless otherwise noted. 0 dBV = 1 volt. All specifications are referenced to nominal output level (0 dBV) unless otherwise stated.

NOTE: All specifications measured at 1 V RMS input, unbalanced output, sliders at mid position, and all switches out unless otherwise noted.

ESPAÑOL

ECUALIZADORES Q™SERIES

Gracias por su compra de un ecualizador gráfico serie Q de Peavey. La familia Q es caracterizada por dos modelos de canales dobles y unidades de un solo canal, todas incorporando el diseño legendario de Peavey de bajo ruido y baja distorsión. Construidos fuertemente, los ecualizadores de la serie Q de Peavey cuentan con sliders con punto de detención medio de 45 mm incrustados en metal para durabilidad. Estas unidades de dos espacios de rack también ofrecen controles de ganancia de ±15 dB e indicadores LED de nivel de salida. Otras características incluyen filtros de graves ajustables, entradas y salidas de + 21 dBu e interruptores de bypass. Los filtros de los ecualizadores de la serie Q están centrados en frecuencias ISO a un 3% de exactitud. Ya sea en el escenario, en el estudio o simplemente arreglando el sonido del estéreo de casa, la serie Q tiene un ecualizador para ti.

CARACTERISTICAS

Q 215B

• Canales dobles (15 bandas por canal)

• Filtros de 2/3 de octava

• Rango de ecualización efectiva de 25 Hz 16 kHz

• Filtros Q constantes

• 15 dB recorte / 15 dB aumento por banda

• LEDs de nivel de salida(-12 a +12 dB)

• Filtro de recorte de graves a 40 Hz de18 dB por octava

• Entradas y salidas TRS de 1/4" para operación balaceada y no balanceada

• Interruptor Bypass con LED de estatus

• Control de ganancia de15 dB recorte / 15 dB aumento

QF 215

• Canales dobles (15 bandas por canal)

• Filtros de 2/3 de octava

• Rango de ecualización efectiva de 25 Hz 16 kHz

• Filtros Q constantes

• 18 dB recorte / 15 dB aumento por banda

• LEDs de nivel de salida(-12 a +12 dB)

• Filtro de recorte de graves a 40 Hz de18 dB por octava

• Entradas y salidas TRS de XLR y 1/4" para operación balaceada y no balanceada

• Interruptor Bypass con LED de estatus

• Nuevos circuitos FLS (Feedback Locating System –sistema contra la retroalimentación) para

sensibilidad mejorada

• Control de ganancia de15 dB recorte / 15 dB aumento

QF 131

• Canal sencillo (31 bandas)

• Filtros de 1/3 de octava

• Rango de ecualización efectiva de 20 Hz 20 kHz

• Filtros Q constantes

• 18 dB recorte / 12 dB aumento por banda

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