Peavey Q 215FX User Manual

O WNER’ S M ANUAL

Q 215FX

Dual 15-Band Graphic Equalizer with FLS

Constant Q Filters

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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.

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CAUTION: Risk of electrical shock – DO NOT OPEN! CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to

qualified service personnel. WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this

appliance, read the operating guide for further warnings.

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reparar. Deje todo mantenimiento a los técnicos calificados. ADVERTENCIA: Para evitar corrientazos o peligro de incendio, no deje expuesto a la lluvia o humedad este aparato

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E N G L I S H

Congratulations on purchasing the Q™215FX! Peavey engineers have taken graphic equalizers to the next level with its introduction. We trust that you are eager to place this unit into YOUR system ASAP.

The Q215FX offers two channels with 15 bands of 2/3 octave filters featuring superior constant “Q” devices. Each channel has Peavey's exclusive FLS above the frequency bands to identify the presence of a high energy signal (usually feedback). This sophisticated feedback detector system will allow you to quickly identify and remove feedback. It works like this: when the feedback detection circuit detects the frequency band with the most energy, it causes the LED above the associated frequency band to illuminate. By moving the fader downward for that band, the likelihood of feedback is reduced/eliminated.

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Most use the Q

1. To catch and reduce/eliminate feedback “on-the-fly” during a performance.

2. To determine frequency bands that are susceptible to feedback BEFORE the performance, eliminating them in advance. How do you do this? After the system is set up, slowly bring up the microphone levels. As they start to feedback, note the LED activity on the Q™215FX feedback bands. Move the faders to decrease the “identified” bands. Now you have eliminated a high percentage of potential feedback problems before the performance even begins!

NOTE: It is common for feedback to be active over several frequency bands. Also, go easy when making fader adjustments since extreme movements will affect your performance and be counter productive. If any operational questions come up, be sure and contact our Customer Service department at (601) 483-5365.

Thanks for supporting Peavey!

215FX in one of two ways:

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Feedback Locating System that consists of LED indicators

OPERATION NOTE

For best results, set the mixer levels high enough to cause the Feedback Locating System LEDs to become active (0 dBV, 1 V RMS). This may require you to turn down the power amp to maintain an acceptable volume level.

This equalizer is designed to provide room equalization, feedback control and system tone control. No amount of equalization will correct an acoustically bad room/mic/speaker arrangement or completely correct the response of a poor loudspeaker.

Always begin with all sliders in the “O” position and avoid excessively cutting large segments of the audio passband, which would limit the system’s dynamic range.

Exercise caution when attempting to boost equalization below cutoff of the speaker system. Typical sound reinforcement enclosures are not designed for 20 Hz performance and transducer damage could result.

FRONT PANEL FEATURES EQUALIZER SECTION (1)

There are two 15-band 2/3-octave filter sets. The filters are constant “Q” devices located at ISO center frequencies. Effective equalization range is from 25 Hz to 16 kHz per channel. Maximum cut per frequency is 18 dB and the boost per frequency is 12 dB.

AUTOMATIC FEEDBACK LOCATING LEDS (2)

When feedback occurs, the LED of the frequency band that is feeding back will illuminate, indicating the slider to be adjusted. The LED will remain illuminated for a few seconds even after the feedback is gone. This is to allow you to see where the feedback is if the feedback goes away before any correction is made. If there is no feedback occurring, the LED of the frequency band with the most signal in it will illuminate. Just because the LED is illuminated does not mean that there is feedback occurring.

OPERATING THE FEEDBACK LOCATING SYSTEM

The feedback locating system is normally used in one of two ways.

1. To catch and reduce/eliminate feedback “on-the-fly” during a performance.

2. To determine frequency bands that are susceptible to feedback before the performance, and elimi-

nate them in advance. This is done after the system is set up, by bringing up the microphone levels

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slowly to the point of feedback. As they start to feedback, note the LED activity on the Q

215FX. Move the faders to decrease the “identified” bands. Now you have eliminated a high percentage of potential feedback problems before the performance even begins.

Note: It is not uncommon for feedback to occur over several frequency bands. Also, go easy when making fader adjustments since extreme movements will affect your performance and be counter productive. Some feedback or ringing, although audible, may not be louder than the other program material and may not light an LED.

GAIN (3)

Calibrated control for regulating overall gain of the equalizer section. Unity gain throughout the signal chain may be maintained by recovering lost signal at this point.

For example: Assume the equalization process has introduced a signal loss of -6 dB by negative (-) adjustment of the EQ section. The gain should then be adjusted to +6 to maintain unity gain through the equalizer.

LOW CUT (4)

Provides high pass filtering at 40 Hz in the “in” position. Low frequency roll-off is at 12 dB per octave.

LOW CUT LED (5)

With the Low Cut switch in the “in” position, this LED will illuminate indicating a low frequency roll-off at 12 dB per octave at 40 Hz

BYPASS LED (6)

This LED will illuminate when the Bypass switch is in the “in” position, indicating that the EQ and gain controls are bypassed.

BYPASS (7)

In bypass mode (switch in), the input signal is routed directly to the output and is unaffected by all front panel controls except the low cut filter.

LED LEVEL METER (8)

This multicolored LED ladder indicates output level.

POWER SWITCH (9)

Used to turn AC mains power on or off.

Back Panel:

REAR PANEL FEATURES LINE CORD-120V PRODUCTS ONLY (10) We have incorporated a 2-wire line (mains) cable for power on the Q231 FX.

Power requirements: Domestic: 120 V AC / 60 Hz / 20 W. Export: 230 V AC / 50/60 Hz / 20 W.

NOTE: CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO

WIDE SLOT, FULLY INSERT.

NOTE: FOR UK ONLY

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

1/4" OUTPUTS (11)

Two 1/4" Tip-Ring-Sleeve (stereo) jacks (one per channel) provide balanced outputs when used with stereo (TRS) 1/4" plugs and 2-conductor shielded cables. When used with a mono 1/4" phone plug, the outputs are unbalanced. The Tip is in phase (+) and the Ring is out of phase (-). Balanced operation of output will allow a 6 dB increase in output level.

11 12 1413 11 12 1413

XLR OUTPUTS (12)

This XLR jack provides an electronically balanced output that is electrically the same as the 1/4" TRS output (11). Using this balanced output will provide a 6 dB increase from unbalanced operation.

1/4" INPUTS (13)

Two 1/4" Tip-Ring-Sleeve (stereo) jacks (one per channel) provide balanced inputs when used with stereo (TRS) 1/4" plugs and 2-conductor shielded cables. When used with a mono 1/4" phone plug, the inputs are unbalanced. The Tip is in phase ( + ) and the Ring is out of phase ( - ).

XLR INPUTS (14)

This XLR jack providees a balanced input that is elecrically the same as the 1/4" TRS input (13).

Q™215FX SPECIFICATIONS

All specifications are typical unless otherwise noted.

0 dBV = l volt

All specifications are referenced to nominal output level (0 dBV) unless otherwise stated.

All measurements are wideband 20 Hz to 20 kHz unless otherwise stated.

NOTE: All specs measured at 1 V RMS input and unbalanced output.

All sliders at mid position, all switches out unless otherwise noted.

Frequency Response:

±1 dB 20 Hz to 20 kHz

Distortion:

.005% 20 Hz to 20 kHz

Input Impedance:

Balanced 20 k ohms (equal impedances to ground)

Output Impedance:

330 ohms

Maximum Input Level:

+18 dBV (8 V RMS)

Maximum Output Level:

+18 dBV (8 V RMS)

Nominal Input Level:

0 dBV (1 V RMS)

Nominal Output Level:

0 dBV (1 V RMS)

Input Headroom:

Nominal 18 dB

Output Headroom:

18 dB

Output Noise:

EQ in bypass: -100 dBV EQ in. all flat: -98 dBV

Filter Frequencies:

25 Hz, 40 Hz, 63 Hz, 100 Hz, 160 Hz, 250 Hz, 400 Hz, 630 Hz, l kHz, 1.6 kHz, 2.5 kHz, 4 kHz,

6.3 kHz, 10 kHz, and 16 kHz

Filter Q:

2.3

Maximum Boost and Cut Filter:

+12 dB, -18 dB

Maximum Boost and Cut Gain: (Wideband Gain)

±15 dB

Low Cut Filter:

40 Hz

Power Consumption:

Domestic: 120 V AC, 60 Hz, 20 watts Export: 220/230-240 V AC, 50/60 Hz, 20 watts

Dimensions and Weight:

3.5" H x 19" W x 11.375" D

10.1 lbs.

U.S. Patent pending for circuit providing visual indication of feedback.

features and specifications listed herein are subject to change without notice.

Due to our efforts for constant improvements,

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