Electro-Voice Q44 User Manual download pdf (Page 2)

Q44 Stereo Power Amplifier

Architects’ and Engineers’

Specifications

The power amplifier shall be a dual-channel

model of solid-state design employing high-

power output devices in a true-complemen-

tary-symmetry output circuit. It shall be ca-

pable of operating from a 120/230/240-V, 50/

60 Hz ac line. The power amplifier shall con-

tain a limiter circuit driven by a high-qual-

ity input/output comparator to protect the

load from damage by amplifier clipping. The

amplifier shall meet various worldwide

safety requirements including Underwriters's

Laboratories UL-813 Standard, Canadian

Standard, and CE-Standard

The amplifier shall contain sensing circuitry

to provide protection for the output transis-

tors against over temperature, excessive out-

put voltage, shorted loads, excessive phase

shift and back-EMF current. The load shall

be similarly protected against start-up/shut-

down transients, low ac line voltage and dc.

Rear-mounted controls shall include detented

level potentiometers for each channel, an

input routing switch for selecting dual/ste-

reo or parallel mono operation, a switch for

selecting dual/stereo or bridged operation

and a chassis groundlift switch. Rear-

mounted input connectors shall include a 3-

pin female XLR-type connector wired in

parallel with a male 3-pin XLR-type output

connector for signal routing. Output connec-

tors shall be Neutrik Speakon NL4MP’s for

channels A and B, and another for bridged

operation.

Front-panel indicators shall include power

on, a protection indicator and separate sig-

nal present and limiter indicators for each

channel. Front-panel controls shall include

a power on switch.

The power amplifier shall meet the follow-

ing performance specifications: rated output

power from 20-20,000 Hz at less than 0.2%

THD, each channel 230 watts into 8 ohms,

350 watts into 4 ohms and 450 watts into

2 ohms. In bridged mode at 1 kHz, the am-

plifier shall deliver 900 watts into 8 ohms

and 1,300 watts into 4 ohms. Hum and noise

shall be at least 103 dB (A weighted) below

rated output power; damping factor shall be

greater than 300 at any frequency up to 1 kHz

in any mode with an 8-ohm load; THD (total

harmonic distortion) shall be less than 0.05%

at 1 kHz at rated output power; crosstalk shall

be greater than -80 dB at 1 kHz at rated out-

put power; transient intermodulation distor-

tion (DIM 30), shall be less than 0.03%.

Dimensions shall be 132.5 mm (5.25 in)

high x 483 mm (19.0 in) width x 385.5 mm

(15.7 in) deep. Net weight shall be 16 kg

(35.2 lb). Color shall be light gray.

The power amplifier shall be the Electro-

Voice Q44.

Limited Warranty

Electro-Voice products are guaranteed

against malfunction due to defects in mate-

rials or workmanship for a specified period,

as noted in the individual product-line

statement(s) below, or in the individual prod-

uct data sheet or owner’s manual, beginning

with the date of original purchase. If such

malfunction occurs during the specified pe-

riod, the product will be repaired or replaced

(at our option) without charge. The product

will be returned to the customer prepaid. Ex-

clusions and Limitations: The Limited

Warranty does not apply to: (a) exterior fin-

ish or appearance; (b) certain specific items

described in the individual product-line

statement(s) below, or in the individual prod-

uct data sheet or owner’s manual; (c) mal-

function resulting from use or operation of

the product other than as specified in the

product data sheet or owner’s manual; (d)

malfunction resulting from misuse or abuse

of the product; or (e) malfunction occurring

at any time after repairs have been made to

the product by anyone other than Electro-

Voice Service or any of its authorized service

representatives. Obtaining Warranty Ser-

vice: To obtain warranty service, a customer

must deliver the product, prepaid, to Elec-

tro-Voice Service or any of its authorized

service representatives together with proof

of purchase of the product in the form of a

bill of sale or receipted invoice. A list of

authorized service representatives is avail-

able from Electro-Voice Service at 600 Cecil

Street, Buchanan, MI 49107 (800/234-6831

or FAX 616/695-4743). Incidental and

Consequential Damages Excluded: Prod-

uct repair or replacement and return to the

customer are the only remedies provided to

the customer. Electro-Voice shall not be li-

able for any incidental or consequential dam-

ages including, without limitation, injury to

persons or property or loss of use. Some

states do not allow the exclusion or limita-

tion of incidental or consequential damages

so the above limitation or exclusion may not

apply to you. Other Rights: This warranty

gives you specific legal rights, and you may

also have other rights which vary from state

to state.

Electro-Voice Electronics are guaranteed

against malfunction due to defects in mate-

rials or workmanship for a period of three

(3) years from the date of original purchase.

Additional details are included in the Uni-

form Limited Warranty statement.

For warranty repair or service informa-

tion, contact the service repair department

at: 616/695-6831 or 800/685-2606.

For technical assistance, contact Technical

Support at 800/234-6831 or 616/695-6831,

M-F, 8:00 a.m. to 5:00 p.m. Eastern Stan-

dard Time.

Specifications subject to change without

notice.

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