MSB Technology S202 User manual

The 202 Stereo
Amplier
User Guide
Check our website for the most recent user
guides, rmware, and drivers:
www.msbtechnology.com
Technical support email is:
[email protected]
08.25.2020

Technical specications
Static Power
Consumption
90 Watts On
Standby power less than 2 watts
Input 2x XLR Input
Output 1x Binding post set per channel
Cont. Power Output (8Ω)
< 1% distortion
200 W
Cont. Power Output (4Ω)
< 1% distortion
380 W
Frequency Response
(20 to 20kHz)
±0.03dB
Signal to Noise
(20 to 22kHz)
>130dB (>133dBA)
Equivalent Input Noise
(22kHz BW)
0.65μV
Crosstalk @ 2kHz >110dB
Gain
(150Ω source impedance)
23.8dB
Input Impedance
(User Selectable)
75Ω / 300Ω / 1.2kΩ
Output Impedance
(20 to 20kHz)
0.01Ω
Operating
Voltage Range
100V or 105-130V/210-260V
Congured at factory.
Fuse 1/4”x1-1/4” 10A 250V Slow Blow
Controls Input Impedance Switch
On/O Button
Standby Button
Display Dimmer
Delay/Mode Switch
2x MSB 12V Trigger

Technical specications (continued)
Chassis Dimensions
(Per Chassis)
Width: 16 in (404 mm)
Depth: 19 in (483 mm)
Height without feet: 6.5 in (165 mm)
Height with feet: 7 in (178 mm)
Weight: 90 lbs (41 kg)
Product Feet: M6X1 Thread
Shipping Dimensions
(Per Chassis)
Width: 24 in (610 mm)
Depth: 28.25 in (718 mm)
Height: 16.5 in (419 mm)
Weight: 137 lbs (62 kg)
Included Accessories User Manual
IEC C19 Power Cord
Rubber Feet
S202 amplier front controls
(Controls under front edge of amplier)
Power Control Display Brightness Power Delay
Normal No IR Linked Darker Brighter None Short Long
STANDBY
POWER
MSB
TECHNOLOGY

Power
When plugging in power, the amplier detects the input voltage and
automatically switches between 120 or 240 volt operation. It is also
available in a non-switching 100 volt permanent conguration.
Amplier Interface
There are two buttons on the front of the amplier as well as three
control features just under the front of the amplier.
Display Modes All display modes will be displayed at full
brightness when a display status is changed and
then fade to the brightness set by the user.
White
- Power on.
Red
- Power o.
Pulsing Amber
- Standby (pressing the power button from this
state will shut the amplier o, pressing the
standby again will turn it back on)
Flashing Red
- Overheating Protection (Unit will not turn on
until it has reached an acceptable temperature)
Flashing Amber
- Over-voltage protection.
Remote Trigger
Switch
Normal
- This sets the unit as the 12 volt trigger master.
No IR
- Remote commands disabled.
Linked
- This sets the powerbase as the 12 volt trigger
slave. The ‘master’ unit will control this units
power and standby with link cable installed.
Display
Brightness
This is a rolling wheel to control the brightness of
the power indication display
Delay switch No Delay
- The amplier will have no delay before switching
on.
Short Delay
- The amplier will have a short delay before
switching on.
Long Delay
- The amplier will have a long delay before
switching on.

Connecting to your Amplier
Connect your analog interconnects to the amplier and attach
your speaker cables following the appropriate method below. MSB
recommends to always unplug your amplier when connecting or
changing anything associated with your speaker lugs.
The S202 is equipped with a ‘Right’ channel and a ‘Left’ channel set of
lugs. Connect your speakers to the associated set of lugs.
Grounding Connections
On the back of each S202 there are chassis grounds available just
below and to the inside of each set of output lugs. These grounding
connections are labeled with a ground symbol. These are intended
as a simple way to nish the grounding chain setup from an MSB
Powerbase or to attach any shielded audio interconnect grounds.
Never attach any ground wire to the negative terminal of the output
lugs. Visit our website for more details.
Input impedance switch
To select the correct input impedance setting follow the table below.
75Ω MSB Select DAC
MSB Reference DAC
MSB Premier DAC
300Ω MSB Discrete DAC
1.2kΩ All non-MSB Products
(Lower impedance settings can be used, but
contact your products manufacture rst to
ensure that a lower impedance setting will
not damage the product)
S202 Stereo Amplier Jack Panel
AC INPUT
120 / 240 VOLTS
12 VOLT
TRIGGER
Designed and handcrafted in California, USA
CAUTION
RISK OF ELECTRIC
SHOCK.
DO NOT OPEN.
MSB
TECHNOLOGY
INPUT
IMPEDANCE
LEFT
RIGHT
RIGHT LEFT
The S202 Stereo
Amplifier
INPUTS
SERIAL:

12 Volt Remote Trigger
This amplier is equipped with a remote trigger for use with other MSB
products. The trigger uses a 3 pin mini jack. When any MSB product
is turned o, the other products connected will also turn o and vice-
versa. This trigger can also be used with other products. Products may
use this trigger dierently, so you may need to rewire a cable or use an
interface relay. The connector is wired as shown. If you connect “signal”
to “ground”, all MSB products will turn o. If you connect “signal” to “12
V” or leave it open, all MSB products will turn on. MSB ampliers can
also communicate standby when the ‘signal’ is pulled down using a
50K resistor. Use the power delay switch to stagger the powering on of
the ampliers. Visit our website for more details.

Technical Support
If you are experiencing any issues with your MSB product, please contact
your nearest dealer or try our support page at www.msbtechnology.
com/support. Please be sure you have the most current edition of your
products rmware installed. If your issue persists please feel free to
contact MSB directly. Emails are usually responded to in 24 - 48 hours.
Email: [email protected]
MSB Return Procedure (RMA)
If a customer, dealer, or distributor has a problem with an MSB
product, they should email tech support before sending anything
back to the factory. MSB will do their best to respond within 24 hours.
Should it be clear that a product must be returned, tech support
should be informed and all the following relevant information should
be provided:
1Product in question
2Serial number
3Exact conguration when symptom is observed along with a list
with the input used, source material, system connections, and
amplier
4Customer name
5Customer shipping address
6Customer phone number and email
7Special return shipping instructions
MSB will issue an RMA number and create an invoice with all details
outlined except the nal price as the product has not yet been seen.
This invoice will be emailed so all the above information can be checked
and veried by the customer.
The product should be returned with the RMA number present on the
box. Work can then begin immediately and the product can be sent
back quickly.
Any repair that is dicult and cannot be completed in two weeks will be
identied and the customer will be informed when it is to be expected.
Otherwise the majority of repairs should be shipped back within two
weeks if all the required information is present on the invoice.
Link to page:
http://www.msbtechnology.com/faq/msb-product-return-procedure/

The 202 Stereo Amplier Limited Warranty
Warranty includes:
• MSB warrantys the unit against defects in materials and workman-
ship for a period of 5 years from the date the unit was originally
shipped from MSB.
• This warranty covers parts and labor only, it does not cover shipping
charges or tax/duty. During the Warranty period, there will normally
be no charge for parts or labor.
• During the warranty period, MSB will repair or, at our discretion,
replace a faulty product.
• Warranty repairs must be carried out by MSB or our authorized
dealer. Please contact your dealer if your unit requires service.
Warranty excludes:
• The Warranty does not cover standard wear and tear.
• The product is misused in any way.
• Any unauthorized modications or repairs were performed.
• The product is not used in accordance with the Operating Conditions
stated below.
• The product is serviced or repaired by someone other than MSB or a
authorized dealers.
• The product is operated without a mains earth (or ground) connection.
• The unit is returned inadequately packed.
• MSB reserves the right to apply a service charge if the product
returned for warranty repair is found to be operating correctly, or if
the product is returned without a returns number (RMA) being issued.
Operating Conditions:
• Ambient temperature range: 32F to 90F, non-condensing.
• The supply voltage must remain within the AC voltage specied near
the products AC jack.
• Do not install the unit near heat sources such as radiators, air ducts,
power ampliers or in direct strong sunlight. This may cause the
product to overheat.