AMP200 - Receiver OSD Audio - Free user manual and instructions

Product Type	Powered Amplifier (Receiver)
Brand	OSD Audio
Model	AMP200
Power Output (Stereo)	80W per channel into 8 ohms; 125W per channel into 4 ohms
Power Output (Bridged Mono)	250W into 8 ohms
Frequency Response	20Hz - 20kHz
Total Harmonic Distortion + Noise	<0.2%
Inputs	2 x RCA line inputs (Line 1, Line 2); 1 x speaker level input
Outputs	2 pairs of speaker terminals (Speaker A, Speaker B)
Speaker Impedance (Stereo)	Minimum 8 ohms per channel
Speaker Impedance (Bridged)	Minimum 8 ohms (total load)
Controls	Front: Power, Volume Trim, Balance Trim; Rear: Master Level controls (L/R), Mode switch (Stereo/Bridge), Delay Time adjustment
Indicators	Blue LED (active), Red LED (standby)
Power Supply	115V/230V AC (selectable)
Warranty	Limited warranty; see manual for details
Safety Features	Includes safety instructions; do not expose to rain or moisture
Applications	Indoor/outdoor speaker distribution, whole-house audio, local zone amplification
Additional Features	Auto-source priority switching, delay timer for source return

Frequently Asked Questions - AMP200 OSD Audio

How do I connect my speakers to the AMP200?

Connect speakers to the terminals marked Speaker A or Speaker B, observing proper polarity (positive to +, negative to -). For stereo operation, ensure the mode switch is set to Stereo.

How do I use the bridged mono mode?

Set the mode switch to Bridged. Connect both left and right inputs to the amplifier. Connect a single 8-ohm speaker to the bridged terminals (left channel + and right channel -). Adjust both master level controls to the same position and set balance to center.

What does the LED color indicate?

When the amplifier is on and active, the front panel LED lights blue. When the amplifier is on but in standby mode, the LED lights red.

How do I set the master volume level?

Turn the front panel Volume Trim fully clockwise. Set the front panel Balance Trim to center. Then adjust the rear Master Level controls for each channel to achieve the desired maximum volume and balance. Use the front panel trims for fine adjustments.

Can I use multiple sources with this amplifier?

Yes, the AMP200 has two line-level inputs (Line 1 and Line 2) and a speaker level input. A local source connected to Line 1 takes priority over the distributed audio on Line 2. When the local source is turned off, the amplifier automatically switches back to Line 2 after a set delay.

How does the source priority switching work?

A source connected to Line 1 has priority. When it becomes active (e.g., a CD player or TV), the amplifier switches to that source. When Line 1 is turned off or muted, the amplifier returns to the Line 2 source after the programmed delay time.

What is the delay time adjustment for?

The delay time adjustment prevents rapid switching between sources. For example, if Line 1 is a CD changer, the delay prevents the amplifier from switching back to Line 2 while the changer is moving between discs.

Can I use this amplifier with 4 ohm speakers?

Yes, in stereo mode the amplifier delivers 125W per channel into 4 ohm loads. In bridged mode, the minimum impedance is 8 ohms, so 4 ohm speakers cannot be used in bridged mode.

How do I change the voltage setting for different countries?

The amplifier is preset for the voltage of the country it was sold in (115V AC for US, 230V AC for Europe). To change the voltage, contact OSD Audio at [phone] for instructions. Do not attempt to change it yourself.

What is the warranty coverage?

The limited warranty covers defects in materials or workmanship under normal use. It applies only to the original purchaser with proof of purchase from an authorized dealer. It does not cover damage from misuse, alteration, or acts of God. Contact OSD Audio for a Return Authorization before returning the product.

USER MANUAL AMP200 OSD Audio

• TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THIS PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
  • TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
  • TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE PLUG TO WIDE SLOT, FULLY INSERT.

This Lighting flash with arrowhead Symbol, within an equilateral triangle, is intended to alert the use to the Presence of un-insulated dangerous Voltage within the products enclosure That may be of sufficient magnitude To constitute a risk of electric shock To persons.

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN

Warning: To reduce the risk of Electric shock, do not remove Cover (or back) no user Servicing to qualified service Personnel.

The exclamation point within the Equilateral triangle is intended to Alert the user to the presence of Important operating and Maintenance (servicing) Instructions in the literature Accompanying suppliance.

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.
2. Keep these instructions.
   3 Read all warnings.

MI5Powered Amplifier

Front view of an OSD STANDER audio amplifier console (no visible text or symbols on the device body)

Congratulations on your purchase of OSD Powered Amplifier.

Mi6 Powered Amplifier. Please take a few moments to read this entire manual, and be sure to retain this document for future reference please read and observe all safety instructions detailed on page.

Note: If any part of this product is damaged or missing, Please call OSD Audio Return Department At [phone]

Using the controls/ Front Panel

Power

The front panel switch will manually switch the MIS Powered Amplifier on or off. A blue led behind the faceplate lens indicates its power status. Whenever the amplifier's power switch is in the "ON" position and the amplifier is in "active" status the lens is illuminated blue. If the amplifier is "ON" but in the "standby" status the lens is illuminated RED.

Master Level Control

Each channel is able to control its volume independently relative to the other channel. At the bottom left of the rear panel, there are 2 screwdriver adjustment knots which correspond to the volume level of the channel identified by a channel designator below it.

The volume range is labeled Minimum to Maximum and has 1 steps (clicks) at a center position as a reference. Rotate the knob clockwise to increase output, and counter clockwise to decrease output.

These adjustments set the master level and if not set up an initial setup of the MI5 Powered Amplifier will or may adversely affect the performance of the amplifier.

To set the Master Lever controls begin by adjusting the front panel "Volume Trim" to its fully clockwise position. Also set the front panel "Balance Trim" to its center position. Now adjust both the left and Right Channel Master Level controls to set a "Maximum" desired volume for the MI5 Powered Amplifier in its application, as well as setting an appropriate "Balance" from left to right.

Now the front panel Volume and Balance Trim controls can make fine adjustments to your set up in this application.

RCA input

As an example, if the "line 1 Input" source was a CD Changer. The delay could be adjusted to prevent switching back to the "Line 2 Input" source while the changer moves from one disk to another.

Speaker Level Input

The MI6 Powered Amplifier also provides a pair of speaker level input for these applications where either of the sources has only speaker level output signal available. This input may be switched to be used in place of the line 1 or line 2 input.

Mode Switch

To the right to the master Level controls is a switch labeled "MODE" with "STEREO" and "BRIDGED" as options. If you will be connecting one or two pair of speaker to the amplifier, place the switch in the "STEREO" position.

If you will be suing a pair channel to power a single mono speaker, place the switch in the "BRIDGED" position, and be sure to read the section titled "Speaker Terminals" below.

When you are using the amplifier in "Bridged Mode", the amplifier is now a single channel mono amplifier. The two channels have been internally connected in series by the "Bridge" switch. The MI6 Powered Amplifier is now capable of 250W, bridged into 8 ohms with less than 0.2% THD+N.

For the amplifier to operate properly in the bridged mode you should have both the 'right and left' inputs connected to the amplifier. The amplifier will sum these signals and create your mono source.

Note: Both of the "Master Level" adjustments should be set to the same Position, and the "Balance Trim" should be set to the

NOTE: Only one pair of channels can be bridged together. Do not attempt to bridge both A&B speaker terminals, as this may result in a lower impedance than the amplifier is designed to accommodate, and may damage your amplifier. The minimum impedance for the total load connected to a pair of channels in the bridged mode is 8-ohm.

NOTE: This amplifier is capable of use with standard US voltage (115 VAC) as well as European voltage (230 VAC). The amplifier will be preset for the voltage of the country it is sold in. Use with other voltages requires some changes to be made to the amplifier. Should you wish to use the amplifier in a country other than the one for which it was purchased, Please contact OSD AUDIO HOME PRODUCT AT [phone]

MI5 Powered Amplifier Specifications

Power Bandwidth 20Hz-20kHz

80W per CH into 8 ohm loads with less than 0.2% THD+N 125W per CH into 4 ohm loads with less than 0.2% THD+N 250W Bridged Mono into 6 ohms with less than 0.2% THD+N

This limited warranty applies only to purchases from authorized OSD Electronics retailers. This limited warranty is extended only to the original purchaser.

Consumers are required to provide a copy of the original sales invoice from an authorized OSD dealer when making a claim against the limited warranty. This limited warranty only covers failures due to defects in materials or workmanship that occur during normal use. It does not cover failures resulting from accident, misuse, abuse, neglect, mishandling, misapplication, alteration, faulty installation, modification, service by anyone other than OSD or damage that is attributable to acts of god. It does not cover costs of transportation to OSD or damage in transit. The customer should return their defective product, freight prepaid and insured, to OSD AUDIO. Only after receiving a Return Authorization.

This warranty will become void if the serial number identification has been wholly or partially removed, altered or erased. Repair or replacement under the terms of this warranty does not extend the terms of this warranty. Should a product prove to be defective in workmanship or material, the consumer's sole remedies will be repair or replacements as provided under the terms of this warranty. Under no circumstances shall OSD be liable for loss or damage, direct, consequential or incidental, arising out of the use of or inability to use the product. There are no express warranties other than described above

Applications

Powering Speaker Outdoors

Whenever you are using loudspeakers outdoors, you should be aware that sound does not travel like it would in your home. Without the reflective surfaces of walls and ceilings, sound outdoors will dissipate quickly. Therefore, in an outdoor situation the MI6 Powered Amplifier provides the opportunity in kidney secreted

Stereo Setup

In this configuration, the mono switch is set to stereo for stereo operation. Connect the line out jacks from a stereo preamplifier or source to the Line 2 input jacks of your M5 Powered Amplifier. Next connect your speakers to the terminals marked "SPEAKER A" observing proper polarity (see "speaker terminals" Page 5). Connect a second (optional) pair of speakers to the terminals marked "SPEAKER B". Select between the "A" and or "B" speakers using front panel speaker selection buttons.

Mono Setup

In this configuration, the mono switch is set to bridge. Connect the line out from a preamplifier to the right and left Line 2 input of your MI5 Powered Amplifier. Connect your mono speaker to the terminals of your MI5 Powered Amplifier, following the instructions in "Speaker Terminals" on Page 4. Use the "Master Level" controls on the rear panel to adjust the volume. Leave the balance set to the center defect position.

Setup For Multiple Sources

In the application shown below, a distributed audio system is connected to the MI5 Powered Amplifier as a local zone amplifier via the Line 2 inputs. Normally the distributed audio system will be the audio source for the MI5 Powered Amplifier.

The distributed audio is then neural and to be read by additional

The distributed audio is then passed on to be used by additional zones or sub zones in the distributed system via the Line 2 outputs. The Audio output of a local source, such as MP3 Player, CD, television, computer, etc., is connected to the MI5 Powered Amplifier via the television, computer etc.. Is connected to the MI5 Powered Amplifier via the Line 1 inputs, and whenever the local source is active its signal will take priority over the distributed audio signal present at Line 2. However, the distributed audio signal will still be present at the Line 2 input. In this circumstance the audio output of the local source will be heard via the MI5 Powered Amplifier. Once the local source is turned off or muted, the MI5 Powered Amplifier will automatically switch back the distributed audio system as an audio source, assuming the television is remains inactive. The delay time adjustment determines when switch back to the normal source will occur.

This set up assumes all incoming signals are at line level and not at speaker level. If the Whole House Distributed Audio was only available as a speaker Level signal you could connect it the "speaker In" connections and set the switch above to the "Line 2" position, or toward the right hand position of the switch.

Whole House Distributed Audio