BZB Gear BG-AMP2X50 User manual

USER MANUAL
BG-AMP2X50
2x50W Class-D Amplifier w/ 5 Inputs

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Thank you for purchasing this product. For optimum performance and safety, please read
these instructions carefully before connecting, operating or adjusting this product. Please keep
this manual for future reference.
SURGE PROTECTION DEVICE RECOMMENDED
This product contains sensitive electrical components that may be damaged by electrical
spikes, surges, electric shock, lightning strikes, etc. Use of surge protection systems is highly
recommended in order to protect and extend the life of your equipment.

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Table of Content
Introduction...................................................................................................................4
Features........................................................................................................................4
Panel Descriptions......................................................................................................5
Front Panel.............................................................................................................5
Back Panel ..............................................................................................................6
Remote Control Description......................................................................................7
Application Diagram....................................................................................................8
Specifications...............................................................................................................9
Package Contents.....................................................................................................10
RS-232 Pin Assignment...........................................................................................10
RS232 and Telnet Commands................................................................................11
Maintenance ................................................................................................................12
Warranty Policy............................................................................................................12
Limitations of Warranty...............................................................................................12
Exclusive Remedies ......................................................................................................13
RMA Policy ...................................................................................................................13
Standard Replacement.........................................................................................13
Once you have obtained an RMA number ..........................................................14
Please note:..........................................................................................................14
Warranty Information (Second Year Assurance).................................................15
Mission Statement.....................................................................................................16

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Introduction
The BG-AMP2X50 is a compact class-D amplifier with 5 inputs, it features switchable stereo or
bridge output, and complete EQ adjustment and intuitive working status display. It integrates
easily in various analog to digital applications such as when used in collaboration
environments, lecture halls, conference rooms, classrooms, healthcare facilities and control
centers.
Features
Efficient 2x50 watts of power from the Texas Instruments amp chip
5 audio inputs: 2x L/R Stereo, 1x Mic (Mic/48V/Line), 1x SPDIF and 1x Coaxial
Switchable Stereo / Bridge output (2x50W@8ohms / 1x100W@4ohms)
6 EQ modes for choose: Normal, Pop, Classic, Metal, Jazz and Rock
Audio loop out supports cascade with another amplifier
Intuitive LCD screen for device status
Mic input supports audio mix with any of the L/R, SPDIF and Coaxial input
Multiple control modes: Push Buttons, IR, RS232 and TCP/IP
Easy volume adjustment via a rotary knob
Easy installation with 1U rack-mounting ears
No fan design, no noise
With over-temp protection circuit
Supports audio delay up to 256ms (Optional)

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Panel Descriptions
Front Panel
①LCD Display –On the Main Interface it shows status of the Input, Volume and Mix Mode
(ON/OFF). Rotate the “Volume Rotary Knob”can adjust the volume directly.
②IR Receiver Window - Receive IR signal from the remote control of BG-AMP2X50.
③Power Button –Long press (2 seconds) it to enter standby mode, and short press it to
wake up.
④Menu Button –Press to enter Input/Volume/Bridge Mode/Mix Mode set mode. The blinking
segment is the one can be changed currently, rotate the “Volume Rotary Knob”to change
the current selected segment settings, press “Menu”button again to confirm the change,
press “Esc”button to return to the previous menu.
⑤Esc Button –Press it to return to the previous menu.
⑥Volume Rotary Knob –Rotate it to adjust the volume.

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Back Panel
①TCP/IP Port –IP Control / LAN Serving
②RS232 Port –For control the BG-AMP2X50 thru computer or central controller.
③Optical Port –Optical digital audio (SPDIF) input.
④Coaxial Port –Coaxial digital audio (SPDIF) input.
⑤Mode Switch –Switch between Stereo & Bridge modes.
⑥4-Way Spring Terminal –To connect with two speakers.
⑦Power Input –30V DC.
Note: Make sure the unit is plugged into a working AC outlet and the DC plug is inserted
all the way into the amplifier.
⑧Rocker Switch –To Power ON/OFF the BG-AMP2X50.
⑨IR Extension –3.5mm stereo earphone jack, connect to IR receiver cable to receive the
IR form remote of BG-AMP2X50.
⑩Mic Mode Switch –Switch between “Mic”, “48V” and “Line” microphone input type.
⑪MIC Port –Microphone input.
⑫L/R Port –3.5mm stereo earphone jack for L/R audio input.
⑬L/R Ports –Left/Right channel of the L/R audio input.
⑭Audio Loop Out Port –3.5mm stereo earphone jack for cascade with another
BG-AMP2X50.

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Remote Control Description
Note: A small plastic tab extends out from the remote control battery compartment. This must
be removed before using the remote control.
Mute, Unmute,
Decrease, Increase
volume
Select the audio
input sources
Decrease/increase
the audio delay
value (Optional)
Select EQ modes
Mic Embed control
Bridge mode control
Power On the unit
Power Off the unit

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Application Diagram

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Specifications
Technical
Power output
2x50W@8ohms, 1x100W@4ohms
SNR
85dB
THD+ N
1%@1KHz 50W@8ohms, 1%@1KHz 100W@4ohms
Frequency response
100Hz to 20KHz (±3 dB)
Impedance
2-8 ohms
Input Impedance
>10KΩ
Max Input Voltage swing
5.6V
Input Channel Separation
90dB
Efficiency
90%
ESD Protection
Human body model —±15kV (air-gap discharge) & ±8kV (contact
discharge)
I/O
Inputs
1x IR Ext. (IR signal receiving, 3.5mm stereo earphone jack)
1x L/R (Analog audio input, 3.5mm stereo earphone jack)
2x RCA (Analog audio input, Left/Right channel)
1x MIC (Microphone input, 3.5mm stereo earphone jack)
1x Coaxial (Digital audio input, SPDIF)
1x Optical (Digital audio input, SPDIF)
1x RJ45 (IP Control / LAN Serving)
1x 9-pin D-sub (RS232 serial port)
Outputs
1x Loop (Analog audio loop out, 3.5mm stereo earphone jack)
1x 4-Way Sprint Terminal
General
Housing
Metal Enclosure
Dimensions
255mm [W] x 163mm [D] x 44mm [H] (Without the 8mm Rubber Feet)
Net Weight
1.4KG
Power Supply
Input: AC100 - 240V 50/60Hz
Output: DC 30V/5A (US/EU standards, CE/FCC/UL certified)
Power Consumption (Max)
130W
Operation Temperature
-4 - 176°F / -20 - 80°C
Storage temperature
-40 - 212°F / -40 - 100°C
Relative Humidity
20 - 90% RH (no condensation)
NOTE: All nominal levels are at ±10%.

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Package Contents
1) 1x BG-AMP2X50
2) 1x 30V/5A DC Power Supply
3) 1x Power Cord
4) 1x Remote Control
5) 1x IR Receiver
6) 2x Rack-mount Ears (19” Rack-Mountable)
RS-232 Pin Assignment
Baud Rate: 57600 bps
Data Bit: 8-bit
Parity: None
Stop Bit: 1-bit
Flow Control: None
NOTE: Use Straight Through DB9 Cable to connect the matrix with computer, DO NOT use
Crossover Cable (Null Modem Cable).
BG-AMP2X50 (DCE)
Remote Control Console (DTE)
PIN
Assignment
PIN
Assignment
1
NC
1
NC
2
Tx
2
Rx
3
Rx
3
Tx
4
NC
4
NC
5
GND
5
GND
6
NC
6
NC
7
NC
7
NC
8
NC
8
NC
9
NC
9
NC

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RS232 and Telnet Commands
Command
Action
?
Print Help Information
HELP
Print Help Information
STATUS
Print System Status And Port Status
PON
Power On, System Run On Normal State
POFF
Power Off, System Run On Power Save State
LCD ON/OFF
Set LCD Always On Or Auto Turn Off In Power On State
RESET
Reset System To Default Setting (Should Type "Yes" To Confirm, "No" To
Discard)
AUD FR xx
Audio Input From xx
xx=[0:L/R1,1:L/R2,2:Mic,3:Optical,4:Coaxial]
MUTE ON/OFF
Output Audio Mute On or Off
VOL xx
Set Volume to xx
xx=[00...60]:Volume Value
AUD EQ xx
Set Audio EQ Mode xx
xx=[0]: Normal, [1]: Pop, [2]: Classic, [3]: Metal, [4]: Jazz, [5]: Rock
BOS xx
Bridge Output Select xx
xx=[0:Left,1:Right,2:Mix]
MIC MIX xx
Mic Mixer On or Off
xx=[On,Off]
MIC VOL xx
Mic Mix Mode, Mic Volume to xx
xx=[00...60]:Mic Volume Value
AVG xx
Additional Volume Gain xx
xx=[00...06] : Set Additional Volume Gain
xx=00: No Additional Volume Gain
BVC xx
Background Volume Control
xx=[On,Off]
NET DHCP ON/OFF
Set Auto IP(DHCP) ON Or OFF
NET IP xxx.xxx.xxx.xxx
Set IP Address
NET GW xxx.xxx.xxx.xxx
Set Gateway Address
NET SM xxx.xxx.xxx.xxx
Set Subnet Mask Address
NET RB
Set Network Reboot and Apply New Config!!!

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Maintenance
Clean this unit with a soft, dry cloth. Never use alcohol, paint thinner or benzene to clean this
unit.
Warranty Policy
BZBGEAR products are warranted against defects in material and workmanship for one year
from the date of shipment. During the warranty period, BZBGEAR will, at its option, repair or
replace products that prove to be defective. Repairs are warranted for the remainder of the
original warranty.
For equipment under warranty, the owner is responsible for freight to BZBGEAR and all
related customs, taxes, tariffs, insurance, etc. BZBGEAR is responsible for the freight charges
only for return of the equipment from the factory to the owner. BZBGEAR will return the
equipment by the same method (i.e., Air, Express, Surface) as the equipment was sent to
BZBGEAR.
All equipment returned for warranty repair must have a valid RMA number issued prior to
return and be marked clearly on the return packaging. BZBGEAR strongly recommends all
equipment be returned in its original packaging.
BZBGEAR’s obligations under this warranty are limited to repair or replacement of failed parts,
and the return shipment to the buyer of the repaired or replaced parts.
Limitations of Warranty
The warranty does not apply to any part of a product that has been installed, altered, repaired,
or misused in any way that, in the opinion of BZBGEAR, would affect the reliability or detracts
from the performance of any part of the product, or is damaged as the result of use in a way or
with equipment that had not been previously approved by BZBGEAR.
The warranty does not apply to any product or parts thereof where the serial number or the
serial number of any of its parts has been altered, defaced, or removed.
The warranty does not cover damage or loss incurred in transportation of the product.

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The warranty does not cover replacement or repair necessitated by loss or damage from any
cause beyond the control of BZBGEAR, such as lightning or other natural and weather-related
events or wartime environments.
The warranty does not cover any labor involved in the removal and or reinstallation of
warranted equipment or parts on site, or any labor required to diagnose the necessity for repair
or replacement.
The warranty excludes any responsibility by BZBGEAR for incidental or consequential
damages arising from the use of the equipment or products, or for any inability to use them
either separate from or in combination with any other equipment or products.
A fixed charge established for each product will be imposed for all equipment returned for
warranty repair where BZBGEAR cannot identify the cause of the reported failure.
Exclusive Remedies
BZBGEAR’s warranty, as stated is in lieu of all other warranties, expressed, implied, or
statutory, including those of merchantability and fitness for a particular purpose. The buyer
shall pass on to any purchaser, lessee, or other user of BZBGEAR’s products, the
aforementioned warranty, and shall indemnify and hold harmless BZBGEAR from any claims
or liability of such purchaser, lessee, or user based upon allegations that the buyer, its agents,
or employees have made additional warranties or representations as to product preference or
use.
The remedies provided herein are the buyer’s sole and exclusive remedies. BZBGEAR shall
not be liable for any direct, indirect, special, incidental, or consequential damages, whether
based on contract, tort, or any other legal theory.
RMA Policy
When returning product to BZBGEAR for any reason, the customer should fill out the official
RMA form to obtain an RMA number. Without the permission or approval, BZBGEAR will not
be responsible for any return. This can be initiated by emailing or calling your related sales. All
requests are processed within 48 hours.
Standard Replacement
For customers that agree to return defective product to BZBGEAR first, a Standard
Replacement option is available.

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An RMA number must first be issued by sales. This RMA number will need to be referenced on
the outside of the return shipment.
Upon receipt of the defective product, BZBGEAR will, at its discretion, either repair or replace
the product and ship it out in the most expeditious manner possible. Subject to availability, the
replacement product will be shipped on the business day following receipt of the defective
product.
In the event the product returned to BZBGEAR has been discontinued (i.e. the product is no
longer being manufactured by BZBGEAR but is still under warranty), BZBGEAR will, at its
discretion, either repair or replace with recertified product.
Once you have obtained an RMA number
After obtaining an RMA number from BZBGEAR, you must send the product - freight prepaid -
to BZBGEAR. The BZBGEAR RMA number must be prominently displayed on the outside of
your package. If you send your product to BZBGEAR without the RMA number prominently
displayed on the outside of the package, it will be returned to you unopened.
Please use a shipping company that can demonstrate proof of delivery. BZBGEAR does not
accept responsibility for any lost shipments unless proof of delivery to BZBGEAR is provided.
Please note:
Product shipped to BZBGEAR must be properly packaged to prevent loss or damage in
transit.
Shipping your RMA to BZBGEAR using regular mailing envelopes is not acceptable, as they
do not protect the product from damage during shipping.
BZBGEAR will not repair or replace a module that is shipped in such a way that the product is
not properly protected.
BZBGEAR will not accept any product that has been damaged as a result of accident, abuse,
misuse, natural or personal disaster, or any unauthorized disassemble, repair or modification.

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Warranty Information (Second Year Assurance)
BZBGEAR wants to assure you peace of mind. We're so confident in the quality of our
products that along with the manufacturer's one-year limited warranty, we are offering free
second-year warranty coverage upon registration*!
Taking advantage of this program is simple, just follow the steps below:
1. Register your product within 90 days of purchase by visiting BZBGEAR.com/warranty.
2. Complete the registration form. Provide all necessary proof of purchase details, including
serial number and a copy of your sales receipt.
For questions, please call 1.888.660.2962 or email suppo[email protected].
For complete warranty information, please visit BZBGEAR.com/warranty or scan the QR code
below.
*Terms and conditions apply. Registration is required.

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Mission Statement
BZBGEAR manifests from the competitive nature of the audiovisual industry to innovate while
keeping the customer in mind. AV solutions can cost a pretty penny, and new technology only
adds to it. We believe everyone deserves to see, hear, and feel the advancements made in
today’s AV world without having to break the bank. BZBGEAR is the solution for small to
medium-sized applications requiring the latest professional products in AV.
We live in a DIY era where resources are abundant on the internet. With that in mind, our team
offers system design consultation and expert tech support seven days a week for the products
in our BZBGEAR catalog. You’ll notice comparably lower prices with BZBGEAR solutions, but
the quality of the products is on par with the top brands in the industry. The unparalleled support
from our team is our way of showing we care for every one of our customers. Whether you’re an
integrator, home theater enthusiast, or a do-it-yourselfer, BZBGEAR offers the solutions to
allow you to focus on your project and not your budget.