Skip Navigation

Niles MSU250

Infrared repeater system hub

4 Reviews | 1 question - 2 answers


Our take on the Niles MSU250

The MSU250 infrared extender hub enables easy control of your A/V system from two secondary listening rooms, using either your system's regular remote control or a universal remote. It also lets you place your components out of sight — in a cabinet or closet, for example — and still easily operate your system.

The MSU250 infrared extender hub enables easy control of your A/V system from two secondary listening rooms, using either your system's regular remote control or a universal remote. It also lets you place your components out of sight — in a cabinet or closet, for example — and still easily operate your system.

The MSU250 serves as the "hub" of an infrared (IR) extender system. You'll also need one infrared sensor for each of your secondary listening rooms — these mounted sensors receive the IR commands emitted by your remote control and relay them to the MSU250. The MSU250 in turn passes these signals to an infrared flasher, or emitter (also sold separately) that sits near your A/V components and transmits your commands to them. (Depending on the components in your system and their placement, more than one flasher may be necessary.) To complete your IR extender system, you'll also need some wire to run from your IR sensors to the MSU250.

For flexibility in turning components on and off from afar, and for handy integration of automated systems — such as light-dimmers, curtain-closers, or TV screens that lower from the ceiling — the MSU480 offers a 12-volt output, which can be activated by a command from a universal remote (must have learning capability).

  • two IR sensor inputs
  • five IR flasher outputs — three full power, two variable power
  • 12-volt status input jack
  • 12-volt output can be triggered by a command from a learning remote
  • UL-listed, regulated in-line power supply with universal voltage capability
  • system feedback LED provides visual indication of operation
  • integrated mounting wings accommodate both vertical and horizontal installation
  • rugged all-metal chassis
  • 5-5/8"W x 2"H x 7/8"D
  • warranty: 2 years

Great product accompanied by Great customer service from Crutchfield!

Greg, Gloucester Cy, NJ

What's in the Box:

  • MSU250 IR main system unit
  • 12V DC power supply with an attached 6' DC output cable
  • 76" AC cord
  • Two 4-pin input connector for category 5 cable
  • 4 Self-adhesive rubber feet
  • Installation & Operations Guide

Niles MSU250 Reviews

Average Customer Review(s):

(4 Reviews)

Niles MSU250

Greg from Gloucester Cy, NJ on 11/5/2018

Crutchfield Customer Review (What's this?)

Great product accompanied by Great customer service from Crutchfield!



Great service

Martha from Eureka, MO on 5/29/2018

Crutchfield Customer Review (What's this?)

Our old Niles system died after 8 years. We ordered the replacement from Crutchfield and it was a great experience. I called and spoke with a helpful customer service person who had the new item to my home in two days. We replaced it and it works great. It is great to call a company in the US and speak with a knowledgeable person who wants the customer to be happy!

Pros: easy install & works well in an out of the way closet


Niles MSU250

Rob from Virginia Beach, VA on 1/17/2018

Crutchfield Customer Review (What's this?)

Fast delivery, very easy setup and works great. Ordered a new one to replace one damaged during a recent snow storm - turned out that it was just the power supply that was toasted. The old MSU250 is still operable after 10 years, so it is my standby.

Pros: Detailed install instructions. Long life. Small.

Cons: None

Dependable, versatility, simplicity.

Ken from Niantic,CY on 11/6/2016

Crutchfield Customer Review (What's this?)

I've tried several different in cabinet IR systems, only Niles works seamlessly and without hiccups. Dependable, versatility, simplicity. Highly recommend.

Pros: Easy connection Solid construction High/low emitter options 12v trigger options

Cons: .. seriously can't think of any


Hands-on research

Product Research


IR System Overview: An infrared (IR) extender system enables you to control your IR remote controlled A/V equipment from a remote location. This enables you to place your A/V components out of sight (behind cabinet doors, in the rear of a room, or in a different room) and still conveniently control your equipment.

IR System Components: The MSU250 IR Main System Unit is one of three elements that make up an infrared extender system:

  • MSU250 IR Main System Unit: This Main System Unit provides a connection hub for two IR sensors and/or keypads and up to five IR flashers and is generally located near the A/V components. The Main System Unit, which is the "heart" of an IR extender system, has LED indicators to monitor the IR extender system.
  • IR Sensors (sold separately): IR Sensors are the "eyes" of the system, receiving IR commands from hand-held remote controls and relaying the commands to the Main System Unit via a 2-conductor shielded cable. Generally, sensors are placed so that you can easily and naturally point your remote control directly at them. Sensors are available in wall-mount, ceiling-mount, surface-mount and table-top models.
  • IR Flashers (sold separately): IR Flashers re-transmit the infrared signals from the IR Main System Unit to your A/V components. Flashers are the "voice" of an IR extender system that "speaks" to your components.

Universal Compatibility: With the necessary accessories, an IR remote control extender system using the MSU250 is compatible with virtually all brands of A/V equipment and remote controls (using carrier frequencies between 18 and 100kHz).

Flasher Hi/Lo Switch: Two of the five IR flasher outputs have switchable high/low output. When switched to High, you can connect a high-output flooding flasher, such as an IRB1 (item 190IRB1). When in the Low position, you can connect low-output micro-flashers, such as MF1, MF1VF, MF2 or MF2VF.

LED Indicators: The MSU250 provides a visible indication of system status via a green LED and confirms reception of IR data via a blinking blue LED.

Wiring: From every IR sensor, you must "home-run" a Category 5 ("Cat 5") cable back to the MSU250, connecting each sensor to the hub with an individual cable. The Cat 5 cable should be terminated with the supplied quick connect sensor plugs. The IR flashers connect to the hub via 3.5mm (1/8") mini-plugs.

12 Volt Trigger: The MSU250 features a 3-30-volt AC/DC status jack which provides system status to sensors and keypads via a 12-volt power supply attached to a switched outlet (found on many audio receivers) or an optional 12-Volt trigger output. When 12 volts is detected at the status jack, the 12-volt output jack will output 12 Volts/200mA DC. This is useful for triggering external devices and system automation.

Expandability: The IR System can be easily expanded through the use of an IRH610 IR Sensor Expansion Hub (available from the manufacturer). The expansion hub allows you to add up to 6 IR sensors.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Have one that is 12 years old. AC power supply died so decided to order new unit. [ Robert  Jun 26, 2018 ]
To replace the one I have that quit working during last nights storm. It was 10 years old so I figured a new one should last quite a long time too. [ Robin  Jan 04, 2018 ]
I want a spare [ Ronnie  Nov 14, 2017 ]
Appears to be of high quality. Excellent literature explaining what product does and how to use it with other component Niles products. [ Ronald  May 19, 2017 ]

1 question already asked

Yes. [ John  Nov 08, 2015 ]
I purchased a MS120 Sensor, which I mounted directly under the center of my TV. With that sensor being mounted under my TV, I did not have to run a MicroFlasher to the TV itself. Since I am pointing the remote at the TV, the remote is able to send a signal to the sensor and to the TV. The way my system is run is that there is the MS120 Sensor located under the center of the TV, which is mounted on the wall over the fireplace. The MS120 Sensor is then wired to the MSU250 Hub, which is located with my A/V equipment. From the MSU250 Hub, there are MF1 Flashers going to various components: Receiver, Blu-Ray Player, TiVo, Apple TV. An important note is that the MS120 Sensor only comes with 10 feet of cable. Since the hub and A/V equipment are located more than 20 feet away on my system, I had to extend the supplied Sensor cable using Cat-5 cable. [ Ryan  Nov 08, 2015 ]