HPA QA4150 Owner'S Manual Download Page 14

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QA4150 / QA4300

QA 4150

QA 4300

Rated Output Power

Stereo Four Channel Driven 

8 ohms

100 W

200 W

4 ohms

150 W

300 W

Rated Output Power

Bridged Mono

8 ohms

300 W

600 W

Signal to Noise Ratio
(20 Hz ~ 20k Hz)

100dB

100dB

Distortion (SMPTE-IM)

0.05%

0.05%

Input sensitivity @8 ohms

4dBu

4dBu

Voltage Gain

27dB

30dB

Output Circuitry

AB

AB

Current Consumption

120Vac / 240Vac

@ 1/8 power @4 ohms

5.0A / 2.4A

9.5A / 4.6A

@ 1/3 power @4 ohms

7.5A / 4.0A

14.5A / 7.4A

@ Rated power @4 ohms

11.0A / 5.8A

1.5A / 11.2A

Distortion

0.01%

0.01%

20 Hz-20k Hz Half Power
1k Hz Rated Power

0.1%

0.1%

Frequency Response

0/-0.5dB ; 20Hz-20KHz, 0/-3dB ; 5Hz-60KHz

Damping Factor (400 Hz)

200

200

Input Impedance

15Kohm Unbalanced, 30Kohm Balanced

Input Clipping

22dBu (10Vrms)

Cooling

Continuously variable speed, Front to rear

Connectors (each)

Input

Active balanced combo (XLR and 1/4” TRS common use)

Output

5-way Binding post and Speakon

Control

Front

AC power switch, Channel 1 & 2 & 3 & 4 volume

Rear

Mode selector switch

Indicators

Active(blue), Protection(red), Clip(yellow), Signal (green)

Protection

Short circuit, Thermal, Current limit, Current inrush, RF protection, Turn on / Turn 

off muting

Power requirements

100, 120/240Vac, 50/60Hz

Dimensions (W × H × D)

19”(482mm) × 3.5”(88mm) × 16.5”(420 mm)

Net Weight

40 lb

(20.9 kg)

51.1 lb

(23.2 kg)

Necessary modifications are carried out without notice.

Specifications

Specifications

Summary of Contents for QA4150

Page 1: ...17 19 22 29 54 PROTECT CLIP SIGNAL CHANNEL 4 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 19 22 29 54 PROTECT CLIP SIGNAL POWER AMPLIFIER QUAD CHANNEL POWER ON OFF QA4150 HPA CHANNEL 1 0 1 2 3 4 5 6 7 8 9 10...

Page 2: ...WARNING...

Page 3: ...1 QA4150 QA4300 Introduction 2 Features 3 Front Panel Controls 4 Rear Panel Controls 5 Protection 7 Setup 8 Connections 9 Wiring 11 Specifications 12 Table of Contents Table of Contents...

Page 4: ...great care in unpacking your set and do not discard the carton and other packing materials They may be needed when moving your set and are required if it ever becomes necessary to return your set for...

Page 5: ...s for each channel allow precision adjustments Precise signal and clip LED indicators to monitor performance allow you to correct for overloading clipping condition Twin tunnel and four temperature se...

Page 6: ...7 8 9 10 11 12 13 15 17 19 22 29 54 PROTECT CLIP SIGNAL CHANNEL 3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 19 22 29 54 PROTECT CLIP SIGNAL CHANNEL 4 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 19 22 29 54 PRO...

Page 7: ...n Bridged Mono or Parallel modes use the Channel 1 3 input jack only 3 Bridge Stereo Parallel switch This switch changes the amplifier op erating mode from either stereo or mono bridged or parallel Yo...

Page 8: ...This circuit breaker will trip if there is a fault with the main voltage or if max imum output is exceeded Simply depress the circuit breaker and power up the unit again 7 AC input IEC connector for A...

Page 9: ...th the front and rear panels are unobstructed If the power transformer gets too hot its thermal switch will discon nect all of the secondary power and discon nect both channel outputs Short circuit If...

Page 10: ...is 4 Also channel 3 and 4 are operate same as channel 1 and 2 Bridged Mono Mode In this mode channels 1 2 or 3 4 are bridged together and work as one mono amplifier In this mode the minimum speaker i...

Page 11: ...SE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY SAME TYPE FUSE AVIS RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR ATTENTION UTILISER UN FUSIBLE DE...

Page 12: ...RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR ATTENTION UTILISER UN FUSIBLE DE RECHANGE MEME TYPE CH1 BRIDGE CH2 CH3 CH4 CONNECT 2 1 CH 3 CH 4 STEREO BRIDGED PARALLEL B A or or A A B B A B Parallel Mode B...

Page 13: ...ies amplifier to support a variety of applications The QA series features balanced inputs and outputs so connecting balanced and unbalanced signals is possibles Unbalances 1 4 Connector Balances TRS 1...

Page 14: ...nse 0 0 5dB 20Hz 20KHz 0 3dB 5Hz 60KHz Damping Factor 400 Hz 200 200 Input Impedance 15Kohm Unbalanced 30Kohm Balanced Input Clipping 22dBu 10Vrms Cooling Continuously variable speed Front to rear Con...

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