Leon OTO MCA 200 User Manual

OTO MCA 200

715 W. Ellsworth Road Ann Arbor, Michigan 48108 | 1.888.213.5015 | www.leonspeakers.com

USER GUIDE

SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

WARNING:

To reduce the risk of fire or electric shock, do not expose

this apparatus to rain or moisture.

The apparatus shall not be exposed to dripping or splashing and no objects

filled with liquids, such as vases, shall be placed on apparatus, receptacles,

and the point where they exit from the apparatus.

The lightning flash with arrowhead symbol, within an equilateral triangle,
is intended to alert the user to the presence of uninsulated dangerous
voltage; within the product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.

This symbol is intended to alert the user to the presence of important
operation and maintenance (servicing) instructions in the literature
accompanying the appliance.

ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, stoves or any

other apparatus (including amplifiers) that produce heat.

9. Protect the power cord from being walked on or pinched particularly at

plugs, convenience receptacles, and the point where they exit from the
apparatus.

10. Only use attachments/accessories specified by the manufacturer.

11. Do not ‘Hot Plug’. When changing inputs or outputs, switch the Leon

OTO MCA 200 off before making changes. Once changes have been
made, then switch the Leon OTO MCA 200 back.

12. Unplug this product during lightning storms or when unused for long

periods of time.

13. Refer all servicing to qualified service personnel. Servicing is required

when the apparatus has been damaged in any way, such as power­supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.

14. This apparatus shall not be exposed to dripping or splashing, and no

object filled with liquids, such as vases or glasses, shall be placed on
the apparatus.

15. Exposure to high sound pressure levels may lead to permanent

hearing loss. Take every precaution to protect your hearing.

16. The remote control comes with a non-rechargeable Lithium battery

installed. Take every precaution when handling and installing new
Lithium batteries, and follow all local and state guidelines for safe
disposal of old batteries. Keep all batteries away from children.

Caution: to reduce the risk of electric shock, do not disassemble the
apparatus. There are no user-serviceable parts inside. Refer servicing
to qualified personnel.

Recycling notice: Always properly dispose of or recycle your end-of-life
electronic products. Contact your local or state recycling authorities
for information on nearby recycling facilities.

OTO MCA 200 USER GUIDE

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WELCOME

INTRODUCTION 5

UNPACKING 5

IR REMOTE CONTROL TOUR 6

AMPLIFIER TOUR (FRONT PANEL) 7-8

AMPLIFIER TOUR (LEFT PANEL) 9

AMPLIFIER TOUR (RIGHT PANEL) 10

AMPLIFIER DIP SWITCH CONTROL 11-12

INSTALLATION 13

CONNECTIONS 14

QUICK START 2.0/STEREO SET UP 15-16

BRIDGED MONO 2.0 LINKED SETUP 17-18

STEREO SETUP WITH A PASSIVE SUBWOOFER 19-20

STEREO SETUP WITH A POWERED SUBWOOFER 21

BRIDGED MONO 2.0 WITH POWERED SUB 22

ADJUSTING THE ACCUBASS

DEFAULT VOLUME BYPASS PROCEDURE 23

IR LEARNING PROCEDURE 23-24

FRONT PANEL LED DISABLE 25

ADDITIONAL FEATURES & SUPPORT 26

TROUBLESHOOTING 27

SPECIFICATIONS 28

WARRANTY 29-30

®

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OTO MCA 200 USER GUIDE

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43

INTRODUCTION

IR REMOTE CONTROL TOUR

Congratulations on your purchase of a Leon OTO MCA 200. This was
developed in collaboration with AudioControl
performance-audio amplifier industry. The features of the OTO MCA 200
allow it to shine in both analog and digital audio systems, whether in an
audiophile stereo system, a home theater, or a commercial environment.
The amplifier includes a high-performance Wolfson
converter), and comfortably delivers 100 watts per channel at 8 ohms, 200
watts per channel at 4 ohms, or up to 400 watts bridged.

Additionally, the amplifier features options for control via IR remote, or via
RS232 for easy integration with third-party control systems. With integrated
switchable crossovers, multiple OTO MCA 200 amplifiers can be combined to
drive passive 2.1 systems. The AccuBASS
over bass response to help simplify speaker placement and tuning of the
room.

This manual will take you step-by-step through the features and operation of
the OTO MCA 200. Please read it thoroughly and carefully to ensure that you
get maximum performance from the OTO MCA 200. Keep this manual in a
safe place in case you need to refer to it in the future.

®

, 40-year veterans of the

®

DAC (digital to analog

®

function allows detailed control

UNPACKING

Remove the OTO MCA 200 from its packaging and inspect it for any shipping
damage. If you discover damage, contact your Leon dealer or a customer
service representative immediately.

A. Power On/Standby: Press this to awake the OTO MCA 200, or put it into
standby mode. In standby, the OTO MCA 200 will use minimal electricity.
During normal operation, the OTO MCA 200 will enter standby if no input
signal is sensed for about 8 minutes. This auto-standby mode can be
disabled using the Sleep Defeat DIP switch (see Pages 11-12). If the Power
On/Off switch is off, the amplifier will not turn on with the remote control.

B. Volume Up/Down: Press the plus button to increase the volume, and
the minus button to decrease the volume.

C. Mute: Press this button to mute or unmute the amplifier output.

D. Input Selection 1, 2, 3: Press these buttons to select the desired input.
The OTO MCA 200 front panel LED will light to reflect the selected input.

E. Headphones On/Off: Press this to turn on/off the OTO MCA 200
headphone output. All other outputs will be muted and the front panel
headphone LED will light when the headphone output is engaged.

F. AccuBASS® Up/Down: Press the arrows to increase or decrease the
amount of AccuBASS® enhancement.

G. AccuBASS® On/Off: Press this to turn on the AccuBASS® enhancement.
The front panel input LED will glow brighter when AccuBASS

H. Battery Compartment: The battery compartment on the back is
opened by pressing and sliding off the small cover. Remove a small
insulating strip from below the batter y before first use. Always replace the
batter y with the exact same type (3V lithium CR2032), and with the positive
(+) side facing outward.

®

is enabled.

If possible, save the carton and internal packaging. It is the best possible
protection for your OTO MCA 200 if you need to move it or return it for service.

Keep your sales receipt in a secure place. It helps establish the duration of
your warranty and is good for insurance purposes in case anything happens
to your equipment.

PACKAGE CONTENTS

• Leon OTO MCA 200 Amplifier

• OTO MCA 200 IR Remote Control

• AC Power Cord

OTO MCA 200 USER GUIDE

• Optical Cable

• 4-pin and 3-pin Euroblock terminal blocks

• Mounting Kits (optional)

A.

B.

C.

D.

E.

F.

G.

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H.

65

AMPLIFIER TOUR (FRONT PANEL)

4.

1.

1. IR Remote Control Window: This is the IR sensor for the included IR
remote. Point the remote in this direction to control the amplifier. Do not
block this port if the IR remote is to be used.

2. On/Standby LED: This LED indicates the power status of the OTO MCA

200.

• Blue – normal operation

• Dim Red – standby mode

• Bright Red – channel mute on power up

• Bright Red 2 – amplifier in protection (see TROUBLESHOOTING, Page 26)

• Flashing Red – speaker fault (see TROUBLESHOOTING, Page 26)

OTO MCA 200 USER GUIDE

2.

3.

3. Input Selection LEDs: These three LEDs indicate which input is selected.
Inputs 1 and 2 are digital inputs, and input 3 is analog. When the OTO MCA
200 is muted, all input LEDs will be off. When the OTO MCA 200 receives
a command from the IR remote or via RS232, the input LED will flash. The
selected input LED glows dimly under normal conditions, and brighter when
the AccuBASS® setting is enabled.

4. Headphone On/Off LED: This LED indicates if the OTO MCA 200
headphone output is enabled. When the headphone output is turned on,
all other outputs from the amplifier are muted. The headphone output is
controlled via the IR Remote.

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AMPLIFIER TOUR (LEFT PANEL)

AMPLIFIER TOUR (RIGHT PANEL)

6.

5.

8.

7.

9.

10.

5. AC Input

6. Power On/Off Switch: This is the master power switch for the OTO
MCA 200 amplifier. Keep the amplifier off while making connections or
disconnections from the amplifier. Use this switch to turn the amplifier
off if it will not be used for long periods of time.

7. Voltage Selection Switch: Ensure this is set to your region-specific line
voltage before plugging in the OTO MCA 200.

8. RS232 Control Input: Use this terminal block to connect a third-party
control system. The pins are as follows:

• Pin 1 – RX (RS232 receive)

• Pin 2 – Ground

• Pin 3 – TX (RS232 transmit)

9. Amplifier Control DIP Switches: These DIP switches affect the operation
of the amplifier. See Pages 11-12 for more details.

10. Speaker Outputs: Use this Euroblock terminal block for connections to
your speakers. Make a note of the polarity markings and ensure they match
those of your speakers (+ to +, - to -).

11. IR Output: This 1/8” jack allows a remote IR sender to be connected.

12. Bridged Mono Output: When the OTO MCA 200 is in bridged mode, this
RCA connector outputs the signal from the active input’s right channel only.
It is affected by the volume level, AccuBASS® level, and the 80Hz low-pass
crossover.

OTO MCA 200 USER GUIDE

11. 12.

20.

19.

18.

13.

17. 16.

14. 15.

13. Headphone Output: A pair of stereo headphones can be connected
to this 1/8” jack. This output is normally off except when turned on remotely.

14. Digital Input 2 Coax/Optical: Digital Input 2 automatically switches
between Coaxial and Optical depending on what is connected. Use either
Coaxial or Optical, but not both.

15. Digital Input 1 Coax/Optical: Digital Input 1 automatically switches
between Coaxial and Optical depending on what is connected. Use either
Coaxial or Optical, but not both.

16. Analog Input 3 L/R: These RCAs are the left and right inputs for Analog
Input 3. If the OTO MCA 200 is used in bridged-mono mode, use the left input only.

17. +12V Trigger Input: This 1/8” TS jack allows the amplifier to be triggered
on by a 12VDC control system. The unit will remain on as long as the 12VDC
is applied.

18. Sub/Mono Out: Under normal operation, this RCA provides a signal that
is the sum of the active left and right inputs. It is affected by the volume level,
AccuBASS® level, and the 80Hz low-pass crossover. When the OTO MCA 200
low-pass crossover has been enabled, this RCA connector provides 80Hz
low-pass signal, summed from the active left and right inputs.

19. IR Input: This 1/8” jack allows a remote IR receiver to be connected.

20. Crossover/Bridged LEDs: These LEDs indicate the operation of the internal
crossover and bridged-mode settings. They are on when the respective functions
are enabled via the DIP switches (Pages 11-12).

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