
Mcintosh MX121 Home Theater Pre/Processor w/Dolby True HD, DTS-HD - Complete Kit
This listing is for a complete MX-121 set from McIntosh with an official McIntosh shipping carton, manual, remote, and the Audyssey DSX microphone + tripod to automatically setup the equalizer to your room and speakers. No more fiddling with individual bands, settings, etc., to get the best sound possible in your home theater. In perfect condition, not a scratch or blemish to be seen, and working same as the day it left the factory. Some of the HDMI features and standards may be older, but best results are usually achieved from running your sources directly to your display from experience. We have several multi-channel amplifiers available, and of course you can pair this with higher-end stereo only amplifiers from McIntosh, Audio Research, Krell, etc to truly customize your home theater amplification per channels/front and rear soundstage. This MX121 was also updated to the very latest firmware version available. Recommended Cables: Ascent Series Hero Analog Interconnects (PAIR) - RCA Ultraplate or WBT Connectors Ascent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors Kimber Kable - Tonearm Interconnects - Better Kimber Kable - Flagship Tonearm Interconnects - Best D60 Digital Coaxial Interconnect (RCA/BNC Connectors) OPT-1 Digital Optical Interconnect (TOSLINK Connectors) Kimber Kable - Base Series PK14 Power Cord - Brand New Performance Features:• HDMI 1.4a with 3D Passthru SwitchingThere are six HDMI 1.4a Inputs. HDMI Output 1 includes the new Digital Audio Return Channel (ARC) signal from the TV1, thus eliminating the need for an extra cable and simplifies operation. HDMI inputs are compatible with Deep Color, x.v.Color, Auto Lipsync and HDMI Component Control.• Analog Video/Audio Switching with ScalingComponent Video Inputs and Composite Video Inputs (Analog Video Signals) are also converted to a Digital Video Signal with resolution up to 1080P at the HDMI Outputs.• Balanced Inputs and OutputsA pair of Balanced high level Inputs and an eight channel Balanced Output are provided, permitting long cable lengths without a loss in sound quality.• Moving Magnet Phono InputThere is a Precision Phono Preamplifier for Moving Magnet Cartridges.• Built-in Dolby True HD and DTS-HD Master DecodersThe MX121 also provides built-in decoding of the Dolby Pro Logic IIz, Dolby Pro Logic IIx, Dolby Digital EX, DTS Neo6 and DTS-ES Sound Tracks.• Internet StreamingThe MX121 when connected to a network, offers Internet Radio, with music and photo streaming.• Audyssey DSX®Audyssey DSX is a scalable system that adds new speakers to improve surround impression. Audyssey DSX first adds Wide channels for the biggest impact on envelopment and then creates Height channels to reproduce the next most important acoustical and perceptual cues. Surround Envelopment Processing is used to enhance the blend between the front and surround channels. Audio SpecificationsUnless otherwise noted, the below MX121 Specifications where taken with Audyssey bypassed and manual Tone/EQ set to flat setting.Frequency Response±0.5dB from 20Hz-20,000HzTotal Harmonic Distortion0.005% maximum from 20Hz to 20,000Hz at rated outputSignal To Noise RatioPhono: 86dB below 10mV input (A Weighted) High Level: 96dB below rated output (A Weighted)Rated Output Voltage2.5V Unbalanced Outputs (Main Zone) 5.0V Balanced Outputs (Main Zone)Maximum Voltage Output6V Unbalanced 12V BalancedOutput Impedance220 ohmsInput ImpedancePhono: 47k Ohms, 65pfHigh Level: 20k Ohms Unbalanced and BalancedSensitivity for Rated OutputPhono: 4.5mVHigh Level: 450mV Unbalanced, 900mV BalancedMaximum Input SignalPhono: 50mVHigh Level: 4.5V Unbalanced and BalancedTone ControlsBass Control: ±6dB at 30Hz Treble Control: ±6dB at 10,000HzVideo SpecificationsSignal SystemNTSC/PALHDMIVersion 1.4 (includes support for Deep Color, x.v.Color, Auto Lipsync, Audio Return Channel and HDMI Component Control) ScalingAnalog Video Inputs scaled to a 1080P Digital SignalComponent Video Output LevelY Output Level 1.0Vp-p (75 OHM) PB/CB Output Level 0.7Vp-p (75 OHM) PR/CR Output Level 0.7Vp-p (75 OHM)Composite Video Output Level1Vp-p (75 OHM)Overall DimensionsWidth is 17-1/2 inches (44.45cm)Height is 7-5/8 inches (19.37cm) including feetDepth is 19-1/2 inches (49.53cm) including the Front Panel, Knobs, Rear Panel Connections and USB DriveWeight30 pounds (13.6Kg) net, 54 pounds (24.5Kg) in shipping carton McIntosh MX121 Original Sales Brochure McIntosh MX121 Original Owner's Manual The SkyFi Testing Process for Preamplifiers/Processors:We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline. At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching. Final testing involves putting actual music through the preamplifier We have learned over time that some issues are only noticeable to a trained ear while listening to a familiar source material. Our test bench has reference vintage KEF speakers that we are super familiar with which will quickly reveal any discrepancies. Some preamps will then move into the listening room where they will be tested with our in-house reference system. Item Included McIntosh Box Yes Included Manual Yes Included Remote Yes Included Cables Yes - Power Only Physical Condition 8 / 10 Working Condition 10 / 10