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McIntosh MX121

SKU: X190


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Description and characteristics

The MX121 home theater processor is the control hub of some of the finest home theater systems in the world. An extensive yet easy to use feature set allows MX121 based systems to be configured to meet your exact needs.
All current and legacy audio and video sources – such as Blu-ray, DVD, CD and Laser Disc players along with turntables and tuners – may be controlled, processed and operated through the MX121. A vast array of inputs, including six HDMI that support 1080P resolution and 3D video pass-through, ensures you’ll be able to connect all your source components. The 3D video pass-through will allow you to enjoy everything current 3D Blu-ray discs™ and broadcasts have to offer. And with built in Dolby® TrueHD and DTS-HD Master Audio™ decoding, you’ll hear – and feel – everything too.
The MX121 outputs a discrete signal to each of your speakers, whether you have a traditional 5.1 home theater setup or a newer 7.1 configuration. Provisions for Front Height or Width channels are also offered, depending upon your listening preference. Up to two additional zones are available for expansion into other listening areas of your home, with independent source selection and volume adjustment in each area.
Home network communication is supported so you can stream audio and photos directly from your computer or the internet, including Pandora® radio. Built in AirPlay® allows you to wirelessly stream music via your Wi-Fi network* from your Mac or PC based iTunes® library, as well as music stored on your iPad,® iPhone® or iPod touch.® Utilizing a USB cable, iPod classic and select iPod nanos can also be connected; you can also connect your iPhone or iPod touch for charging. (see Specifications for complete list of compatible Apple devices).
Audyssey MultEQ® XT will calibrate your MX121 to compensate for your home theater’s unique acoustical properties, delivering the clearest and most balanced sound possible. For easy system startup and shutdown, the MX121 has the ability to automatically turn McIntosh source components and amplifiers on and off.
Technical data
SKU X190
Manufacturer McIntosh Laboratories
Warranty 24

7.1 Outputs Balanced
(6th & 7th channels can be SBL & SBR or FHL & FHR or FWL & FWR)
7.1 Inputs Unbalanced
7.1 Outputs Unbalanced
(6th & 7th channels can be SBL & SBR or FHL & FHR or FWL & FWR)
Stereo Inputs Balanced
Stereo Outputs Balanced
Stereo Inputs Unbalanced
(including Moving Magnet Phono)
Stereo Outputs Unbalanced
Digital Coaxial Input
Digital Optical Input
Digital Optical Output
AES/EBU Balanced Input
HDMI Input
3D Video Pass-Through, ARC, CEC, Deep Color, x.v.Color, Auto Lip Sync, Advanced HD Audio
HDMI Output
(both for Zone A, 1 with and 1 without ARC, only 1 active at a time - ideal for flat screen and large projector in same room) 3D Video Pass-Through, CEC, Deep Color, x.v.Color, Auto Lip-sync
Component Input
Component Output
Composite Input
Composite Output
S-Video Input
S-Video Output
Subwoofer 2 Output
Max # of audio channels in Zone A
Additional Zone Outputs
Zone B: Analog stereo audio and component video
Zone C: Analog stereo audio
Advanced Connections
Ethernet Web interface and update, IP-based control, Web Data Streaming, Apple AirPlay
Ultra Low Distortion (DSP Bypass)
Dolby Processing
True HD/Digital Plus&EX/Pro Logic IIz, IIx
DTS Processing
HD Master & High Res. Audio/ES/96/24, Discrete & Matrix6.1/Neo:6/Express/Neural
Pure Stereo DSP Bypass Mode
Video Scaling
Yes, up to 1080P HDMI
Third Party Control
RS232, Web IP, Serial Data input, IR input port
Tone Controls
Nine Band Equalizer, Bass and Treble
OSD Overlay on HDMI Output
Input-Output Format Indicators
9 in and 9 out
Control of McIntosh Sources
Yes, by handheld MX121 remote, 1 Data Out, 2 Power Control Trigger jacks
General Specifications
Channel Formats
Stereo, 5.1, 7.1, Two Mono Subwoofers
DSP Room Correction
Audyssey MultEQ XT, Dynamic EQ / Dynamic Volume, DSX
Microphone and stand included
Network Features
DLNA 1.5 Certified, Pandora, Internet Radio, Flickr
Unique x-over Frequency, Each Speaker
Special Features
Rear Panel USB-Apple Dock, HDMI in standby, Apple AirPlay
Apple Compatibility
Compatible with the following devices with the latest Apple OS installed.
AirPlay Connection or USB Connection
iPod touch (3rd and 4th generation)
iPhone 4S
iPhone 4
iPhone 3GS
AirPlay Connection only
iPad 2
iPad New
USB Connection only
iPod touch (1st and 2nd generation)
iPod classic
iPod nano (3rd, 4th, 5th, and 6th generation)
iPhone 3G
Weights & Dimensions
Dimensions (W x H x D)
17-1/2" (44.45cm) x 7-5/8" (19.37cm) (including feet) x 19-1/2" (49.53cm) (including front panel, knobs, rear panel connections and USB drive)
30 lbs (13.6 kg)
Shipping Weight
54 lbs (24.5 kg)
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Delivery and payment


The cost for delivery in the online store www.kirov-high-end.bg  is FREE OF CHARGE for orders over BGN 50.

The delivery shall be performed by the courier company Econt, normally within 1 to 3 business days, depending on the date of order submission you’re your prefer any other courier company, please contact us to specify the details;

All orders submitted after 11:00 a.m. within a business shall be processed and sent on the following business day and are to be received within two days (including Saturday if the customer so wishes). All orders made on the weekend shall be processed and sent on Monday and are to be received on Tuesday or Wednesday;

All orders submitted beyond the working hours, on the weekend or on public holidays shall be processed on the first or second business day after the date of order submission.


Payment on delivery  - in cash upon receiving the shipment from a courier;

Credit/debit card - VISA, VISA Electron, MasterCard, Maestro;

Bank transfer  – you pay the amount being due via transfer to the specified corporate bank account;

PayPal - online payment trough your PayPal account or directly with your credit/debit card;

TBI Credit - You may purchase goods by installments via TBI BANK.

Return and replacement

Each single order submitted on the online store www.kirov-high-end.bg may be replaced or returned within a time limit of 14 days as of the date of delivery to the courier for the customer under the following conditions and steps: 


The replacement of a product is carried out very easily. If you wish to replace a product from your supplied order, you should do the following: 

Contact us via one of the indicated contact details in order to specify the method for replacement of the purchased product that is the most convenient for you;

After receiving the shipment and verify that the marketable state of the goods is preserved, we will send you the new shipment with the products that you wish;

Replacement of a product is recommendable for a product at the same or higher value as compared to the one originally bought. In the event that upon replacement you select a product at a lower value the price difference shall be kept at your account as a credit that you may use at a later stage for shopping;

The value of courier services in both directions upon replacement shall be at the expense of the customer.  


By using our contact form for feedback in the Contacts page, you should describe that you wish to return a particular item (or all items) from the order by filling out on mandatory basis:

The number of your order (you may find it in the order confirmation email or in your account, if you shop as a registered user)

Reason for return of the goods;

Specification that you wish a complete refund of the amount on our part

The transport costs (courier charges) for a returned order shall be incurred on your part. After receiving the shipment we will contact you in order to confirm the receiving thereof, as well as that the goods are in a preserved state which allows us to receive them back.

 Important! In the event that you return a shipment after examination and test in the attendance of the courier, the cost of the courier service for the return thereof to us shall be at your expense.


After receiving back goods returned on your part, we will refund the amount within the following time limit:


  • within 14 days upon payment by ePay, credit, debit cards or bank transfer. You will receive the money back to your card account or your ePay or bank account.
  • within 14 days upon payment upon payment on delivery. In this case, you will receive the money in the form of money transfer via post or via bank  to a bank account specified on your part. For receiving a money transfer at the courier’s office only your ID card shall be required.  




In extraordinary situations and any defects discovered, you may replace a selected item also within a time limit that is longer than the standard one. These cases shall be inspected by the team of Kirov High-End BG EOOD individually and shall be performed beyond the policy herein specified.

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