Electro-Voice Complete Guide to the EV Q66 Manual for Your Professional Power Amplifier

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PROFESSIONAL POWER AMPLIFIER

Speakon CHANNEL B

 

 

Speakon CHANNEL A

 

 

 

 

 

 

 

 

1+

1-

Connector

1+

1-

2+

2-

 

 

 

 

 

 

 

B+

B-

Signal

A+

A-

B+

B-

 

 

 

 

 

 

 

Table 2.1: Speaker connection using Speakon A and B connectors

BRIDGED

In BRIDGED mode both amp channels work in push-pull operation to provide doubled output voltage. The audio signal has to be applied to the input connectors of channel A, amplification is set via input level control of channel A only.

CAUTION:

In BRIDGED mode, the input signal has to be fed to input channel A only. Amplification is set via input level control of channel A only.

In bridged mode operation speaker connection has to be established using pins 1+ and 2- of the Speakon socket CHANNEL A, see illustration right. The correct connection is also indicated at the amplifiers rear panel.

 

Speakon CHANNEL A

 

 

 

Anschluss

1+

2-

 

 

 

Belegung

Bridged+

Bridged-

 

 

 

Table 2.2: Speaker connection using Speakon A

CAUTION:

In BRIDGED mode operation, it is not allowable for the load connected to fall below a value of 4 ohms. Extremely high voltages can be present at the output. The connected speaker sy- stems must be able to handle such voltages. Make sure to completely read and fully observe power rating specifications of the speaker systems to be used and to check them against the output power capacity of the power amp.

2.9 Audio Input Cabeling

Inputs INPUT A and INPUT B are electronically balanced. The pin-assignment of XLRF-type connectors is in accordance with the IEC standard 268.

2, HOT

3, COLD 1, SHIELD

Illustration 2.1: Balanced connection of input

Whenever possible, using balanced audio signal feeds at the input of the power amplifier is always preferred. Unbalanced connections should only be used if the cables are very short and no interfering signals are to be expected in the vicinity of the power amplifier. In this case, bridging the screen (shielding) and the pin of the inverting input inside of the connector is

10 Owner‘s Manual

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Contents Page Page Professional Power Amplifier Important Safety Instructions Owner‘s ManualIntroduction Professional Power Amplifier Front View InstallationControls, Indicators and Connections Rear ViewMounting Mains SwitchOperating Voltage VentilationGroundlift Selecting the Mode Of Operation and Audio Output CabelingLPN-Filter Speakon Channel B Speakon Channel a Connector Anschluss BelegungIllustration 2.3 Balanced connection of output Daisy-Chain Indications Volume ControlOperation FAN CoolingProfessional Power Amplifier Specifications/Technische Daten Bedienungsanleitung Wichtige Sicherheitshinweise Hinweise zur Entsorgung/Wiederverwendung gemäß WeeeBeschreibung Frontseite Bedienelemente, Anzeigen und AnschlüsseRückseite Einbau BetriebsspannungNetzschalter KühlungBetriebsart Mode und Verkabelung des Audio-Ausgangs LPN-Filter Low-Pass-NotchSpeakon Channel B Speakon Channel a Anschluss Belegung Typische LautsprecherverkabelungAbbildung 2.1 Symmetrische Beschaltung des Eingangs Anzeigen BetriebEingangspegel-Regler LüfterSpecifications/Technische Daten Q44 Q66 Q99 Q1212Block Diagram / Blockschaltbild Dimensions / Abmessungen Professional Power Amplifier Professional Power Amplifier Americas

Q99, Q1212, Q44, Q66 specifications

Electro-Voice is well-recognized in the audio industry for its innovative and high-quality sound reinforcement products. Among their impressive lineup, the Q series amplifiers—namely the Q44, Q66, Q1212, and Q99—stand out for their performance, durability, and versatility.

The Q44 is a reliable choice for smaller venues, featuring a lightweight design combined with a high output power of 800 watts per channel at 4 ohms. This amplifier utilizes advanced technology such as a switch-mode power supply, which enhances efficiency and reduces heat generation. The Q44 is ideal for driving passive loudspeakers, offering robust low-frequency response, and is equipped with sophisticated protection circuits to prevent damage from overload or short circuits.

The Q66 builds on the foundation of the Q44, providing higher output power at 1,000 watts per channel at 4 ohms. It is designed for medium-sized applications, whether they are live events, installations, or corporate audiovisual setups. The Q66 features a subwoofer crossover built into the device, facilitating a seamless integration of sub-bass frequencies without the need for external processing. Additionally, the amplifier's sleek front panel provides clear wattage meters and consistent feedback on performance.

For more extensive and complex sound systems, the Q1212 is a powerhouse, delivering up to 1,200 watts per channel at 4 ohms. This model boasts extensive connectivity options, including balanced XLR inputs and speakON outputs, catering to professional setups requiring flexibility. Its advanced thermal management systems ensure operational stability even in demanding environments, making it suitable for large-scale concerts and events.

The Q99 rounds out the series with a compact design that does not compromise on power. With an output of 900 watts per channel at 4 ohms, it provides ample power for various applications. Its lightweight and rack-mountable structure make the Q99 an excellent choice for mobile DJs and touring professionals. The built-in signal indicators and protection features ensure longevity and reliability, critical for on-the-go performance.

All models in the Electro-Voice Q series employ sophisticated Class-D amplification technology, notable for its high efficiency and low thermal output. This technology not only ensures clean and powerful sound but also enhances portability—making them ideal companions for both installation and live sound scenarios. With their various power outputs and features, the Q series offers a comprehensive solution for audio professionals looking to achieve exceptional sound quality.