MOON-SIMAUDIO 250i v2 Integrated Amplifier Owner’s Manual
- June 10, 2024
- MOON-SIMAUDIO
Table of Contents
250i v2 Integrated Amplifier
Owner’s Manual
Integrated Amplifier
250i v2 Integrated Amplifier
WARNING
Do not ingest the battery, Chemical Burn Hazard
The remote control supplied with this product contains a coin/button cell
battery.
If the coin/button cell battery is swallowed, it can cause severe internal
burns in just 2 hours and can lead to death. Keep new and used batteries away
from children.
If the battery compartment does not close securely, stop using the remote
control and keep it away from children. If you think batteries might have been
swallowed or placed inside any part of the body, seek immediate medical
attention.
To prevent the risk of equipment damage or personal harm, use only Class 2
rated loudspeaker wire properly terminated and connected securely to the
binding posts.
simaudio.com
Simaudio Ltd 1345 Newton Road, Boucherville, Québec J4B 5H2 CANADA Date Code:
20230302
Important Safety Instructions
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Read these instructions.
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Keep these instructions.
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Heed all warnings.
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Follow all instructions.
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Do not use this apparatus near water.
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Clean only with a dry cloth.
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Do not block ventilation openings. Install in accordance with the manufacturer’s instructions.
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Do not install near any heat sources such as radiators, heat registers, stoves or another apparatus that produces heat.
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Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for safety.
If the provided plug does not fit into the outlet, consult an electrician for replacement of the obsolete outlet. -
Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Unplug mains cord during transportation.
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Only use attachments and accessories specified by the manufacturer.
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Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip over.
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Unplug this apparatus during lightning storms or when unused for long periods of time.
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Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such as when the power cord or plug has been damaged; liquid has been spilled or objects have fallen into the apparatus; or the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. -
No naked flame sources, such as candles, should be placed on the apparatus
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.
The lightning flash with the 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.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance
**** Marking by the “CE” symbol (shown left) indicates compliance of this
device with the EMC (Electromagnetic Compatibility) and LVD (Low Voltage
Directive) standards of the European Community
PLEASE READ ALL INSTRUCTIONS AND PRECAUTIONS CAREFULLY AND COMPLETELY BEFORE OPERATING YOUR UNIT
- ALWAYS disconnect your entire system from the AC mains before connecting or disconnecting any cables, or when cleaning any component. To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC receptacle.
- The unit must be terminated with a three-conductor AC mains power cord which includes an earth ground connection. To prevent shock hazard, all three connections must ALWAYS be used. Connect the unit only to an AC source of the proper voltage; Both the shipping box and rear panel serial number label will indicate the correct voltage. Use of any other voltage will likely damage the unit and void the warranty
- AC extension cords are NOT recommended for use with this product. The mains plug of the power supply cord shall remain readily accessible.
- NEVER use flammable or combustible chemicals for cleaning audio components.
- NEVER operate the unit with any covers removed. There are no user-serviceable parts inside. An open unit, especially if it is still connected to an AC source, presents a potentially lethal shock hazard. Refer all questions to authorized service personnel only.
- NEVER wet the inside of the unit with any liquid. If a liquid substance does enter your unit, immediately disconnect it from the AC mains and take it to your MOON dealer for a complete check-up.
- NEVER spill or pour liquids directly onto the unit.
- NEVER block air flow through ventilation slots or heatsinks.
- NEVER bypass any fuse.
- NEVER replace any fuse with a value or type other than those specified
- NEVER attempt to repair the unit. If a problem occurs contact your MOON dealer.
- NEVER expose the unit to extremely high or low temperatures.
- NEVER operate the unit in an explosive atmosphere.
- ALWAYS keep electrical equipment out of reach of children.
- ALWAYS unplug sensitive electronic equipment during lightning storms.
- WARNING: Do not expose batteries or battery pack to excessive heat such as sunshine, or fire or the like.
Introduction
Thank you for selecting the MOON 250i v2 Integrated amplifier as a part of
your music system. This component has been designed to offer state-of-the-art
high-end performance in an elegant package, hallmarks on which Simaudio has
made its reputation. We have been building high-performance audio equipment
for over 40 years, and the know how gained through our cumulative experience
is an important reason why MOON products are so musically satisfying.
The performance of your 250i v2 will continue to improve during the first 400
hours of listening. This is the result of a “break-in” period required for the
numerous high quality electronic parts used throughout this integrated
amplifier.
Before setting up your new MOON 250i v2, we encourage you to please read this
manual thoroughly to properly acquaint yourself with its features. We hope you
enjoy listening to the MOON 250i v2 integrated amplifier as much as the pride
we have taken in creating this fine audio product. We understand the power and
emotion of music and build our products with the goal of faithfully capturing
these elusive qualities.
The information contained in this manual is subject to change without notice.
The most current version of this manual is available on our official website
at http://www.simaudio.com
Design Features
Your MOON 250i v2 integrated amplifier incorporates many significant design
features to achieve its “world class” level of performance.
This is an abbreviated list of the more important features:
Six inputs including one front-mounted 1/8” mini-jack for personal media
players.
Phono input for connecting a turntable equipped with an MM (moving magnet)
cartridge.
Headphone output on ¼” TRS jack located on the front panel.
IR input for external control.
Proprietary MOON Bipolar Output transistors with unprecedented gain linearity
resulting in improved bass response and even more accurate sonic reproduction.
Simulink™ controller port allows for 2-way communications between other
compatible MOON components.
Rigid chassis construction to minimize the effects of External vibrations.
Designed to be powered up at all times for optimal performance.
Low operating temperature for an ultra-long life expectancy.
Unpacking
The MOON 250i v2 should be removed from its box with care.
The following accessories should be included inside the box with your unit:
- AC power cable
- ‘‘CRM-3’ remote control with two ‘CR-2032’ batteries
- ‘Simulink™’ cable with 1/8” mini plug terminations on each end
- Warranty and product registration information (USA and Canada only)
Once the unit is unpacked, inspect it thoroughly and report any damage to your
dealer immediately.
We suggest that you keep all of the original packaging, storing it in a safe,
dry place in case you’re required to transport this product. The customized
packaging is specially designed to protect the unit from any potential damage
during transit.
Please write the serial number of your unit in the space provided below for
future reference.
Serial Number
Installation & Placement
The MOON 250i v2 Integrated Amplifier requires reasonable ventilation to maintain an optimum and consistent operating temperature, especially since it will radiate heat when driven hard. Consequently, it should be placed in a location with empty space around it for proper heat dissipation. You should never place another component on top of this integrated amplifier. As well, it should be placed on a solid level surface. You should avoid placing it near a heat source or inside a closed cabinet that is not well ventilated as this could compromise the amplifier’s performance and reliability. The 250i v2 uses a large toroidal transformer in its power supply; even though it is well shielded, you should not place this integrated amplifier too close to source components sensitive to EMI, such as turntables, phono preamplifiers and CD Players. Finally, you should never place another component directly on top of this integrated amplifier.
Front Panel Controls
The front panel will look similar to Figure 1 (above). The remote control
sensor is located directly to the right of the “Phones” output jack and it
should never be blocked, otherwise remote control operation may be
compromised.
The “Standby” button disengages the input section from the rest of the MOON
250i v2’s circuitry.
When in “Standby” mode all audio circuitry remains powered up to help maintain
optimal performance.
When switching back from “Standby” to the “on” mode, both the ‘input’ and
volume level settings will be memorized from the previous listening session.
The blue indicator LED turns off when the 250i v2 is in “Standby” mode.
The MOON 250i v2 integrated amplifier has six (6) inputs. Each of the first
five (5) inputs has a corresponding pair of input connections located on the
unit’s rear panel (refer to the section entitled “Rear Panel Connections” for
father details). The sixth input, labelled “MP” (Media Player) has its
corresponding input connection located on the right side of the front panel
for easy access. The “MP” input uses a 1/8” mini-jack connector which is the
most common type of connection found on portable media players. Select any
one of these six (6) inputs by simply pressing the associated button.
When selected, the corresponding red indicator LED, located directly beside
the button will illuminate.
The “Spk off” button turns off the output signal only to the loudspeakers
connected to the MOON 250i v2. This feature is very useful when using
headphones. When this function is engaged, the red LED located to the right
will illuminate.
The “Mute” button mutes the output signal to the loudspeaker terminals,
headphone jack, as well as both the fixed and variable line output connectors
(refer to the section entitled “Rear Panel Connections” for further details).
Pressing the “Mute” button a second time will reinstate the volume back to its
previous level. When the output signal is muted, the red LED to the right
will repeatedly flash on and off.
The “Phones” jack is used for connecting a pair of stereo headphones to the
MOON 250i v2. The input connector is a standard ¼” stereo TRS jack. When a
pair of headphones are used with the 250i v2, the loudspeakers will still
receive an output signal.
However, you should use the “Spa off” button for private listening.
The rotary “Volume” control determines the output level and has an embedded
red LED to indicate its actual position.
Rear Panel Layout
The rear panel will look similar to Figure 2 (above). There are five (5) pairs
of single-ended inputs on RCA connectors labeled PHONO, CD, DAC. AUX and TV.
The RCA input connectors on the rear panel have been color coded: ‘white’ for
the left channel and ‘red’ for the right channel.
The MOON 250i v2 integrated amplifier also has one pair of non-amplified
outputs labeled ‘PRE OUT’, located next to the TV input, and is designated for
output to a power amplifier with single-ended RCA inputs in the event that
you wish to use your 250i v2 as a preamplifier only. The output level on the
‘PRE OUT’ is variable and is adjusted by volume control.
The Phono input is configured for using with a turntable equipped with an MM
(moving magnet) cartridge.
40 dB of additional gain is applied to that input.
Don’t hesitate to use high quality interconnect cables.
Poor quality interconnect cables can degrade the overall sonic performance of
your system.
To the right of the input and “PRE OUT” section are a series of input/ouput
connectors for external communication. From left to right there are two (2)
“SimLink™” connectors labeled “in” and “out” on 1/8” mini jacks. Please refer
to the next section entitled SimLink™ for more details. Next, there’s a 1/8”
mini-jack input for use with aftermarket infrared remote control receivers.
Finally, there’s a full-function bi-directional RS-232 port control and status
for custom integration or automation on a DB9 connector.
The MOON 250i v2 is equipped with a pair of gold-plated binding posts. Connect
your speakers, with the cables of your choice, to the 250i v2’s speaker
binding posts. Take care to respect the polarity (“+” , “-” ) of the outputs.
Once again, don’t hesitate to use high quality speaker cables*. Poor quality
speaker cables can degrade the overall sonic performance of your system.
Finally on the far right side is the main power switch (“0”=off, “1”=on), the
IEC receptacle, labeled “AC Input” for the included AC power cord, and the “AC
Fuse” socket cover. Connect the supplied AC power cable to the IEC
receptacle. Ensure that the AC wall outlet you use has a functioning ground.
For the best sonic performance, it is preferable that you plug your 250i v2
directly into a dedicated AC outlet and avoid using an extension cord.
Simulink™
The SimLink™ provides communication features between various MOON components.
For example, if you were to connect the 260D to the 250i v2 via the SimLink™,
pressing the (play) button on the 260D will cause the 250i v2 to automatically
switch to the input labelled ‘CD’.
A second feature of SimLink™ involves the “Standby” function. By pressing down
and holding the “Standby” button for 2 seconds on the either the 260D or 250i
v2, both units will go into “Standby” mode. The same logic applies when
switching from “Standby” to active mode.
If you are using the “MiND” Music Streamer and an external digital-to-analog
converter (DAC), you must make a SimLink™ connection between the “Minds
SimLink™ out and the 250i v2’s SimLink™ in. The ‘DAC’ input is the default
input for the “MiND” Music Streamer; When you press the (play) button on the
“MiND” App, the 250i v2 will automatically switch to the input labeled ‘DAC’.
You can change these default settings for the “MiND” as follows: Select the
input that you want as the new default for “MiND”, then press and hold the
“MP” button until the front panel display begins to flash on and off.
The connection rules for the SimLink™ are very basic.
You must always connect the supplied cable between one component’s SimLink™
Out jack and another component’s SimLink™ In jack. If you inadvertently
connect the cable between either two SimLink™ In or two SimLink™ Out jacks,
the SimLink™ communication feature may not function.
Also, there is no master component in a SimLink™ chain; no one particular
component operates as the main communications controller.
Operating the Unit
We recommend leaving your MOON 250i v2 powered up at all times to maintain optimal performance. When you plan on being away for a few days, it may not be a bad idea to power off your amplifier. Please keep in mind that once fully “broken-in”, your 250i v2 requires several hours of operation before reaching optimal performance after powering it up again.
TURNING ON YOUR MOON 250i V2 FOR THE FIRST TIME
Prior to turning the amplifier on for the first time, make sure that every
cable is properly connected to avoid any problems. Flick the main rocker
switch, located on the rear panel, labeled “POWER” to the ‘1’ (on) position.
The blue LED on the front panel will blink for up to 10 seconds while it
achieves standby mode. When it stops blinking and is not illuminated, your
250i v2 is in standby mode. Next, briefly press the push button labeled
“Standby” located on the front panel. You will hear a very faint click sound
confirming that everything is in order. The blue LED on the front panel will
illuminate, indicating that the 250i v2 is now powered up and ready for use.
ON AND OFF SEQUENCE
To avoid having any annoying noises (i.e.. “thumps” and “pops”) emanate from
your speakers when powering your 250i v2 on or off, you should always power up
any source components prior to powering up your 250i v2. As well, always
power down your 250i v2 prior to powering down any source components.
Remote Control
The MOON 250i v2 uses the ‘CRM-3’ full-function remote control (figure 3). It
operates on the Philips RC-5 communication protocol and can be used with other
MOON components. The ‘CRM-3’ remote uses two CR-2032 batteries (included).
To install them, simply remove the two screws from the slid able lower section
of the back plate.
To engage the ‘CRM-3’ remote for use with the MOON 250i v2, you must first
press the button labeled AMP.
The (Power) button, at the top left switches the unit to either ‘Standby’ or
‘On’ mode.
The 2 buttons labelled INPUT allow you to sequentially scroll, through all
available inputs.
The 2 buttons labelled – VOL + allow you to control the volume level.
The 2 buttons labelled BAL control channel balance;
The button mutes the sound. Pressing again will reinstate the output .
When your selected input is “MiND” and the QUEUE contains at least one track,
you can use the remote control to play music from the Mind’s QUEUE. You can
use the (pause), (play), (backward) and ****(forward) buttons. Pressing
once will repeat the QUEUE’s current track; pressing a second time will repeat
the entire contents of the QUEUE; pressing a third time will cancel the repeat
mode. Pressing will randomly play the entire contents of the QUEUE. Pressing a
second time will cancel the random mode.
When in repeat mode the icon will appear in the screen display; when in random
mode the icon will appear in the screen display.
Specifications
Configuration | Stereo |
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Power Supply Transformer | 320VA |
Power Supply Capacitance | 20,000,F |
Class Of Operation — Amplifier | Class A/B |
Single-ended inputs | 5 (RCA) |
Mini-jack input | 1 (1/8″) |
Input Sensitivity | 370mV — 3.0V RMS |
Input Impedance | 11kO |
Phono Input Impudence | 47kO |
Headphone output | 1( 1/4″ Strereo TRS) |
Output Power @ 8) | 50 W per channel |
Output Power @ 40 | 100 W per channel |
Gain | 37dB |
Phono Stage gain | 40dB |
Signal-to-noise Ratio | 101dB @ full power |
Frequency Response | 10Hz – 100kHz +0/-3.0dB |
Crosstalk@ 1kHz | -78dB |
Intermodulation Distortion | 0.05% |
Total Harmonic Distortions (@ 1W) | 0.015% |
Remote Control | Full-Function (CRM-3) |
AC Power Requirements | 120V / 60Hz out 240V / 50Hz |
Shipping Weight | 22 IBM/10kg |
Dimensions (W x Hx D, inches / cm) | 16.9x 3.5 x 14.4/42.9 x 8.9 x 36.6 |
Fuse replacement: 120V version uses a 4A fast blow (3AG)
230V version uses a 2A fast blow (3AG)
If you require the IR or RS-232 codes for the MOON 250i v2, please visit the “Contact Us” section in the support page on our website at www.simaudio.com.
Simaudio Ltd.
1345 Newton Rd.
Boucherville, Quebec, J4B 5H2
CANADA T. 450 449-2212
Documents / Resources
|
MOON-SIMAUDIO 250i v2 Integrated
Amplifier
[pdf] Owner's Manual
250i v2 Integrated Amplifier, 250i v2, Integrated Amplifier, Amplifier
---|---
References
- High End Audiophile Amplifiers And Sound Systems | MOON - Simaudio
- High End Audiophile Amplifiers And Sound Systems | MOON - Simaudio