McIntosh D100 Digital Preamplifier and DAC

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General:

Sweet versatile piece from McIntosh, and a great addition to any system. 

Can be used as a preamp since it has a volume control, as long as you don't have any other analog sources. 

Also has an excellent headphone amplifier to drive your cans that was definitely not an afterthought add-on.

Notes:
• The original McIntosh remote is included but it has developed some heavy "stickiness" from age.
• This DAC uses a muting circuit for the headphones that can sometimes cause audible "chirps" between tracks with certain streamers or amplifiers.

Brand Background:

McIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products. 

McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.

Ownership:

Second Owner

Connections:

Inputs:
2 x Optical
2 x Coax
1 x USB Type B

Standard IEC Power Cord

Outputs:
2 x Unbalanced RCA - Fixed and Variable
2 x Balanced XLR - Fixed and Variable

Power control and IR 1/8" input and output

General Sound:

Smooth, uncolored, undistorted natural and clean

Cosmetic Condition:

8 - Very Slight Signs of Use

https://skyfiaudio.com/pages/our-rating-scale

Working Condition:

Working perfectly and tested in our lab.

Included:

Unit, power cord, remote (with sticky note mentioned above), and manual. We also have an official D100 McIntosh shipping carton on order with the factory but there is no ETA at this time.

Packing:

Will be packed using our highly developed in-house process and custom packing materials.

Original MSRP:

$3,000.00

Dimensions:

Width is 17-1/2 inches (44.45cm) Height is 3-7/8 inches (9.8cm) including feet Depth is 16 inches (40.64cm) including the Front Panel, Knobs and Cables

Weight:

13.5 lbs.

Age:

2014

Reviews:

https://the-ear.net/review-hardware/mcintosh-d100-digital-preamp-digital-preamplifier/

Link to Manual:

Click Here to View/Download

Recommended Cables:

Kimber Kable - RCA Interconnects - Better

Kimber Kable - RCA Interconnects - Best

Kimber Kable - BALANCED XLR Connectors - Better

Kimber Kable - BALANCED XLR Connectors - Best

Kimber Kable - Coaxial Digital Interconnect

Kimber Kable - Select Series Reference USB Cable

Kimber Kable - Power Cords - Better

Kimber Kable - Power Cords - Best

Testing Process:

We start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating.

After the visual inspection we connect the DAC’s RCA outputs to our Sencore PA81 Power Analyzer which simulates a real world input impedance and allows us to monitor the output on an oscilloscope. We are equipped to test optical, coaxial, and USB inputs at Redbook CD Quality. We start with a test signal to verify signal lock and proper output on both channels. If the DAC has balanced outputs these are also tested at this time. If the DAC has multiple Optical and Coaxial inputs they are all checked for proper lock. USB inputs are tested with a Macbook Pro.

After proper function is verified, we set the DAC up for a listening test to evaluate general audio reproduction quality and monitor for clicks, pops, or any other audible signs of issues related to dropped signal lock or failing audio output stages. We often connect DACs under evaluation to our long term test rig for a long test stint to verify stability under real world operating conditions.

Specs:

Audio Specifications:
Frequency Response:
+/-0.5dB from 4Hz to 20,000Hz +0.5/-3dB from 4Hz to 68,000Hz (Source dependent)

Total Harmonic Distortion:
0.0015%

Fixed Output level:
2.0Vrms Unbalanced 4.0Vrms Balanced

Variable Output level:
0 - 8.0Vrms Unbalanced 0- 16.0Vrms Balanced

Signal To Noise Ratio (A-Weighted):
110dB

Dynamic Range:
100dB

Output Impedance:
600 ohms Unbalanced and Balanced

Headphone Load Impedance:
20 to 600 ohms

Digital Audio Specifications:

Digital Input Format:
SPDIF (PCM/Pulse Code Modulation Digital Signal type used for CD Discs, etc.

Digital Input Sample Rate:
Coaxial and Optical: Up to 192KHz, 24-Bit
USB: Up to 192KHz, 32-Bit

Digital Inputs:
Coaxial 1 and 2: 0.5V p-p/75 ohms
Optical 1 and 2: - 15dbm to -21dbm (TOS Link)
USB: USB Type B Connector