Beta Three Q series User manual

ED-B3-Q-150630-001
CN
User Manual
Two Channel professional power amplifier
Q series
Q7i
PROFESSIONAL
2-CHANNEL
POWERAMPLIFIER
POWER
ON
OFF
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB
Q7i
PROFESSIONAL
2-CHANNEL
POWERAMPLIFIER
POWER
ON
OFF
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB

NOTE
Symbols：
The equilateral triangle with lightning bolt warns the user of dangerous voltage
levels localized within the cabinet.
The equilateral triangle with exclamatory mark means the important operation
in the user's manual.
High voltage inside the equipment, do not open the chassis.
Do not expose the equipment to the rain or moisture.
Keep adequate ventilation, do not block the port.
Be sure the voltage of this equipment complies with the local industrial voltage.
Put off the power plug if not used for long time.
Do not work on overload for long time.

CATALOGUE
Introduction
1、
Parameters
2、
Installation
3、
Front panel
4、
Indicators on front panel
5、
Rear panel
7、
Power supply
8、
Input/output connectors
9、
Function setup and cable connection
10、
Operations
11、
Protection and the cooling system function
14、
Troubles and trouble shootings
15、
Safety attentions
16、
P1
P2
P4
P5
P5
P8
P8
P9
P10
P11
P22
P23
P24
Front panel
6、
Software instruction
12、
USB driver instruction
13、
P6
P11
P22

1
1.INTRODUCTION
Thanks for your trust and support.
The Beta Three Q Series is new designed professional high power out Class D with DSP
solution amplifier.
Q Series professional amplifier adopts high efficiency Class D and switching power supply under 2U
equipment cabinet with outstanding radiating solution. The weight can be decreased
under 9kg with continuous stability
Q Series professional amplifier adopts DSP audio processor with control of frequency response,
crossover point, crossover slop, delay and protection for two channels. it can be preset customized
frequency curve.
Product features:
1,High power with light weight and easy to use or install.
2,Built-in DSP for the most flexible use with different speaker.
3,Simple front panel controls and LCD screen give you all control information.
4,Accurate temperature protection will make sure the safe working mode.

2
2.Parameter
Power output under limited
Distortion(typical)
1 KHz at full rated power
>100dB (1kHz, A wight)
Peak output voltage
1Vrms
Input Sensitivity
20Hz~20kHz(±0.5dB)
Class D
Output Circuity
Votage gain(8Ω)
Standard consumption
current 1/8/power(2Ω)
>200:1100(Hz)
Damping factor
Frequency Response(8Ω)
Input Impedance(Ω)20k(balanced), 10k(unbalanced)
Input Port 3-pin XLR
Nl4, binding posts
Output Port
Model Q7iQ5iQ3i
Stereo & parallel
Mode(4Ω)
Stereo & parallel
Mode(8Ω)
Stereo & parallel
Mode(2Ω)
Bridged mono
Mode(8Ω)
Bridged mono
Mode(4Ω)
550W/CH
1000W/CH
1500W/CH
2000W
3000W
850W/CH
1550W/CH
2500W/CH
3000W
5000W
1500W/CH
2500W/CH
3500W/CH
5000W
7000W
300W/CH 500W/CH 700W/CH
<0.5%
Signal to Noise(A-weighted)
Maximum Input Level 4Vrms
Max consumption current
1/3/power(2Ω)
100V(per channel)
200V(bridged) 130V(per channel)
260V(bridged) 170V(per channel) 340V(bridged)
37dB
4.5A
10A
39dB
6.7A
15.5A
41.5dB
9.2A
20.5A
～220-230V 50/60Hz
Power Supply
Net weight 8.2kg 8.5kg 9.5kg
Power
output
(dynamic)

3
125×545×405mm
Dimension
Protect Function Short circuit,open circuit,thermal,RF Protection Load protected against DC faults
DSP Functions
3.5"(2 RU) 19" 12.3"(89mm×483mm×310mm)× ×
Packing dimension
Low pass Filter, adjustable Frequency 20Hz to 20khz
limit: compression ratio,bytes,start and recovery time adjustable
Delay:9.4167ms(max)can be stored 50 group frequency curve
High Pass Filter, adjustable Frequency 20Hz to 20khz
8-band PEQ,with variable Frequency,Gain,and Bandwidth
2.Parameter

3.Installation drawing
4
气流方向
298mm
482mm
290mm
295mm
301mm
307.6mm
76mm
310mm
气流方向
气流方向
435.5mm
88mm
350mm

1.
2.
3.
4.
Power switch
Channel-A gain knob
Channel-B gain knob
Channel bridge indicator
4. FRONT PANEL
5.
6.
7.
8.
Channel-A peak led
Channel-B peak led
Channel-A signal led
Channel-B signal led
9.
10.
11.
12.
Channel-A PWR/ERR indicator
Channel-B PWR/ERR indicator
Ventilation hole
LED display
5. INDEICATORS ON FRONT PANEL
PWR/ERR indicator for each separated channels, more indicates as below:
PWR/ERR lights up red when the amplifier is powered on during self-examine process.
This process will not have any output after 5S self-examination, PWR/ERR lights turn green.
PWR/ERR lights flashing when the amplifier is short circuit or at too low impedance,
however it can be a green light by turn off volume .Please check the loading impedance and
output connection.
PWR/ERR lights red when device temperature is over the limit and output is temporarily cut off.
Please turn off the amplifier, improve the cooling condition and clean the ventilation.
PWR/ERR lights continuous red when power supply voltage too high or too low, please use
the correct one. In this situation, the amplifier can get back to normal work when power
disconnects 3 minutes or more.
PWR/ERR lights red when defection appears, if you are not sure the problems,
please consult technicians.
a.
b.
c.
d.
e.
5
123
4
56
789 10
11
Q7i
PROFESSIONAL
2-CHANNEL
POWERAMPLIFIER
POWER
ON
OFF
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB
Q7i
PROFESSIONAL
2-CHANNEL
POWERAMPLIFIER
POWER
ON
OFF
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB
12

6
6. FRONT PANEL CONTROL INSTRUCTIONS
Remark: When amplifier PWR/ERR become red or connected with PC, the two knobs on front
panel is no function.
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB
BRIDGE
PEAK
SIGNAL
PWR/ERR
CHA CHB
Preset 01
A:0.0 B:0.0
A: CHA knob is to select the parameter, CHB knob is to change the parameter and confirm.
When power on, enter to main menu automatically. Press CHA to enter parameter selection
menu screen, the follow instructions are based on menu order list.
Preset 01
A:0.0 B:0.0
B. For above menu, use CHA and CHB knob to adjust the channel volume, max volume is 0dB.
SINGNAL output indicator for each separated channel.
SINGNAL signal indicator is equivalent to outputs paralleled on the circuit. When the Gain is
turned to minimum and whether there is input signal, the signal indicator will not light up.
CLIP output clipping indicator for each separated channel.
When input signal is too big, the CLIP indicator lights up. Too strong and continuous clip may
cause damage to the speaker and sound. Please reduce gain or signal input when the clip is
too frequent.
BRIDGE indicator, it's switched to bridge mode, means two channels are bridged.

7
C. CHA HPF menu, through CHB knob to adjust HPF crossover point, the range is 20Hz-20 Khz,
OFF means close filter and select relevant slope through PC software.
CHA HPF Freq:
20Hz
D. CHA LPF menu, through CHB knob to adjust HPF crossover point, the range is 20Hz-20 Khz,
OFF means close filter and select relevant slope through PC software.
CHA LPF Freq:
OFF
E. CHB HPF menu, through CHB knob to adjust HPF crossover point, the range is 20Hz-20 Khz,
OFF means close filter and select relevant slope through PC software.
CHB HPF Freq:
OFF
F. CHB LPF menu, through CHB knob to adjust HPF crossover point, the range is 20Hz-20 KHz, OFF
means close filter and select relevant slope through PC software.
CHB LPF Freq:
OFF
G. Parameter save menu, save current parameter as Preset one, can recall the preset for next
power on; maximum store 50 presets for this device. Also can be saved and named by relevant PC
software, through CHB knob to select “Yes”or “NO”to determine the saving or not, press CHB
knob to save.
Save as:
Preset 01 No
H. Preset/recall the curve
Press CHA knob for 3 seconds in main menu, shown as above, through CHB knob to select
relevant presets; Press CHB knob to confirm to recall the presets, if successful, the recall curve
will be shown on screen. Press CHA knob to return main menu and cancel the curve recall.
Remark: When selected curve as below, it means this file doesn't include parameter.
Preset Recall:01
. . . . . . . . . . . .
Preset Recall:01
Not Use . . . . . . . .

7. REAR PANEL
1
2Channel-B signal input (XLR)
3Channel-A signal output (Nl4)
4Channel-A signal output (binding post)
5Channel-B signal output (binding post)
6Channel-B signal output (Nl4)
Channel-A signal input(XLR)
1
93
7
8
7Switch for link or normal mode
8Power cord
9Channel-A signal output (XLR)
10 Channel-B signal output (XLR)
11 USB socket
12 Modes select switch
CHA
CHA CHB
L
O
C
K
-
+
BRIDGE
CHB
L
O
C
K
CHB 1+1-
2+ 2-
CIRCUIT BREAKER
PRESS TO RESET
POWER CABLE
~220-240V, 50/60Hz
CAUTION
!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ELDER AUDIO MANUFACTORY
S/N:
RoHS
CHA 1+1-
2+ 2-
BRIDGE
PARALLEL
STEREO
USB
SIG IN A SIG IN B
SIG OUT BSIG OUT A
贴纸
2 4 5
6
10 11
12
8
8. POWER SUPPLY
Make sure the local voltage complies with the voltage requirement indicated at the back of
amplifier.
Make sure the power cord and socket are good, the plug type matches the sockets.
Make sure the amplifier is well connected to earth.
Pull out plug after power off.
Select the power volume based on power consumption indicated in the date sheet.
Power input of this series amplifier apply circuit breaker replacing blown fuses. To avoid
inconvenience of changing fuse, please reset circuit breaker if the amplifier shut down. If this
happens again, it indicates the amplifier need servicing.

9
9. INPUT/OUTPUT CONNECTORS
Input connectors
Output connectors
Each channel have a group of binding posts and one NL4 MP jack for power output, which is
paralleled inside.
The red binding post connects to positive pole of power output and the black connect to earth.
Under the bridge mode the red binding post of channel Aconnects to positive pole of output,
and the red binding post of channel B connects to negative pole.
Pins 1+, 2+ of NL4 for each channel are connected to positive pole. Pins 1-, 2- are connected
to earth. In this way speaker are connected smartly to speaker.
Note: please make sure the speakers impedance connected to each channel not less than 2Ω
（bridge 4Ω), or it may cause power amplifier working abnormally or overheat.
Note: Please power off before connecting and do not touch bare wire in working condition to
avoid electric shock.
The product is designed with balanced input circuit to lower noise, please use balanced
connection for the device.
Note: If your signal output device is an unbalanced circuit design, please do not use single
core shielded wire, connect the negative pole of dual core wire to earth and make balanced
input connection to get equivalent noise restrain.
Each channel has XLR output and input jack socket with inside parallel connection.
Input jacks of two channels are paralleled directly in parallel mode. Choose any jack to input
signal and output from any jack for connecting to next amplifier. But too much cascade
connection will cause signal interference and distortion.
Note: please do not input signal from the two input jacks at same time under parallel mode.

10
功能设置与信号线连接
10.FUNCTION SETUP
Mode option and signal cable connection as the right drawing:
A、Stereo mode:
Set the switch to stereo mode as the right picture:
Under the stereo mode, the signal on CHA and
CHB is independent, the signal to channel A is
channel A, the signal to channel B is onlyonly for
channel B. Like the right drawing:For
Set the switch to PARALLEL mode, as the right
Picture:Under the mono parallel mode,
to put signal to channel A or channel B is the
Same.This signal is provided to .
output A as well as to output B.
Note: please do not input signal to
Set the switch to BRIDGE mode, like the right
picture:Under the bridge mode, there is signal
only from channel A, no signal from channel B.
positive (+) of Channel A output is the positive
( +)of bridge output, the positive(+) of Channel B
output is the negative( ) of bridge output, like
channel A and B at the same time.
B、Mono mode:
C、Bridge mode:
XLR unbalanced
·XLR asymetrique
·unsymetri is che XLR
·XLR no balanceado
1
2
3
TRS unbalanced
·TRS asymetrique
·TRS no balanceado
·Unsymetriscbe jStereoklinke
·
·Asymetrique
·Unsymmetrisch
·No balanceado
Unbalanced
non-inverting input +
Ground
1 2
3
·Balanced
·Symetrique
·Symmetrisch
·Balanceado
Ground
inverting input -
non-inverting input +
All the input / output sockets and binding posts are located on the back panel, please consult
profess or to connect cable. There is high voltage from output terminal when the devices is
working, be aware electric shock and make sure power off before connecting cable.
Manufacturer shall not be responsible for any kind of device damages or human injuries
caused by incorrect operation.
Under the bridge mode, the output voltage is so high enough to make a electronic shock.
Please power off the unit before operate it under bridge mode.
Under the bridge mode, don not input the signal by channel B and check all the wiring,
convinced the input and output line isolation.
CHA
CHB
CHA
CHB
CHA
CHB
CHA
CHB
CHA
CHB
CHA
CHB
BRIDGE
PARALLEL
STEREO
BRIDGE
PARALLEL
STEREO
BRIDGE
PARALLEL
STEREO

11
11.Operation Procedures
Please refer to following steps:
1> Start
2> Power off
a
b
c
d
e
f
g
setup the function and connection according to the above functions connecting;
Check if the output cable is short circuit or working at wrong load impedance;
Check if the local voltage complies with the user's manual;
Be sure the equipment is power off and the volume knob is to the minimum;
Connect the power supply, turn on the device of sound source and other related devices
and make sure these equipment work in order;
Turn on the power switch
Adjust the knob of volume clockwise to a suitable level
a
b
c
Turn the volume knob to the minimum
Turn off the power switch
Turn off other related devices
12.SOFTWARE INSTRUCTIONS
The software is stored in the CD with equipment packaging. The latest version also may be
A. How to get our software
System requirement: Microsoft Windows98XP or above version. Display resolution should be
800*600 or above. The computer must have one USB port. Run the only file in CD according
the setup guide to install this software.
C. Equipment connection
Connect the equipment directly to computer or by USB port, after then, the computer will
indicate that new device is found, you can install the USB driver located in “driver”directly of
the CD.
D. Software use
downloaded from our website.
B. Software installation

1> Q series amplifier program user interface as following:
The interface includes all speaker function modules, total 5 menus for this software:
1.1>: File: Open present config files or save present config into files.
1.2>: Communications: Connect or disconnect equipment
1.3>: Program: Obtain current using config information, like program number, program name
and so on. Also edit or modify the information.
1.4>: Device: Modify equipment information
1.5>: Help: Display present software version
2.2>: Click Communication menu, choose “Enable communications”to connect this device,
see below:
12
2> System connection
2.1>: USB connection available, USB cable needed to connect this device.

The software starts to search device automatically, meanwhile, the bottom column will show
“ Search device”,see below:
13
After finishing search, it will pop out as below if device is found:
The left side of dialog box shows search result.
The right side of dialog box shows current device information and config data. If users want to
open the config file, click “Download Program Data to Device”option ( The option is just to
write config data into RAM, if it's not saved for next, when device powered off, the config will
lost.). Users want to connect the device, click “connection”and start connection.

After connecting successfully, the software will update the display automatically, and show the
Information of currently connected device, and current program used by device, at the bottom
column show “-> Program Data Transfer Ok…”, see below:
(Remark: When device is connected with PC, the device knob is no function and only control
through PC).
14
3> Save config files
3.1> Save as a file, When user finish the adjustment, the parameters can be saved as a file
into PC through Save As in the file “menu”, see below

3.2>User also can save the adjusted parameters into the device directly
Due storage space limit, total 50 programs can be saved through "Save as current program
In Device" under "Program" menu. See below:
15
4> Recall config files
According to the different file source, there are two ways are available for recall the existing
configuration files.
4.1> Regarding the files saved in the computer, it can be recalled from “Open”under “File”
menu. Then connect the equipment, choose “Download Program Data to Device”in pop-out
dialog box, see below

4.2> For the config files saved in the device, it can be recalled through “List Program &
Recall”in “Program”menu, the software will read the data again and then update the display
Automatically, see below:
16
Select the program you want to use in the pop-out dialog box, then click “Recall”button, the
Software.

4.3> Change the name of config files
Click “Edit current program Name”under “Program”menu to change the name of current
Config files, see below:
17
5>. Disconnection
After finishing the adjustment of parameters, the current parameters can be saved into the
device for the next power on default data. If user does not save the program into device, all the
changes based on previous parameters will not be saved. Click "Disable communications"
under "communication" menu for disconnection, please see below: