מגבר סטריאו McIntosh Integrated דגם MA-12000

The fully loaded, hybrid MA12000 Integrated Amplifier is a product of uncompromising audio engineering and expert craftsmanship. Our most powerful integrated amplifier ever, the feature rich MA12000 offers 350 Watts per channel of clean, high performance power that produces a breathtaking home audio experience. You will think your favorite musicians are playing a live, in-person performance in your house.

The MA12000 includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance. It gives you the warm nuances of a vacuum tube preamplifier (or valve preamplifier as some of our friends like to say) combined with the speed and raw power of a solid state amplifier, state-of-the-art digital audio capabilities, and enough analog audio connections for virtually any home music system.

The MA12000 is a hybrid design with the preamplifier section powered by (4) 12AX7A vacuum tubes (2 tubes per audio channel), while the 350 Watt power amplifier section employs a solid state design. Our Autoformer™ technology guarantees your speakers will always be capable of receiving that full 350 Watts whether they have 2, 4 or 8 Ohm impedance. 

Other MA12000 features include:

• Power Guard® that monitors the output signal for over driving and makes real time micro adjustments to the input signal to prevent harsh sounding clipping that could potentially damage your speakers
• Our fuse-less short-circuit protection circuit Sentry Monitor™ that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal
• A pair of peak responding, trademarked "McIntosh Blue" Watt meters that indicate the real time power output of each audio channel
• McIntosh Monogrammed Heatsinks™ which are connected to advanced high current output transistors that minimize thermal equilibrium lag (or warm-up) time and help keep the MA12000 running cool
• Home Theater PassThru that allows for seamless integration into a home theater system
  Our patented Solid Cinch™ speaker binding posts that easily but securely attach the speaker cables to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables to your speakers
• A discrete, eight-band tone control that allows for advanced manual analog adjustment of your favorite recordings
• High Drive headphone amplifier with Headphone Crossfeed Director (HXD®) which can bring an added dimension to headphone listening
• Power Control to send power on/off signals to connected McIntosh components for easy system power up and shutdown
• Doubling of filter capacity compared to our other integrated amplifiers for even better low frequency performance
• The latest audio-grade circuit components to deliver the best sound possible
• Powerful control microprocessors to improve overall system operation
• Easy operation via front panel controls or the included comprehensive remote control

Specifications

ELECTRONIC SPECIFICATIONS

Power Output per Channel
350 Watts
Number of Channels
2
Speaker Impedance
2, 4, or 8 Ohms
Rated Power Band
20Hz to 20kHz
Total Harmonic Distortion
Preamplifier: 0.03%
Amplifier: 0.005%
Dynamic Headroom
1.5dB
Frequency Response +0,-0.5dB
20Hz to 20kHz
Frequency Response, +0, -3dB
10Hz to 100kHz
Sensitivity Phono (Moving Coil)
0.30mV
Sensitivity Phono (Moving Magnet)
3.0mV
Sensitivity High Level (Balanced / Unbalanced)
600mV/300mV
Sensitivity (Power Amp input)
1.7V
Signal To Noise Ratio (Moving Coil)
75dB
Signal To Noise Ratio (Moving Magnet)
77dB
Signal To Noise Ratio (High Level)
95dB
Signal To Noise Ratio (Power Amp input)
114dB
Input Impedance (Balanced / Unbalanced)
44K/22K
Damping Factor
>40
Maximum Output (Balanced / Unbalanced)
8V Unbalanced
16V Balanced

CONNECTIVITY

Balanced Input
2
Unbalanced Input
6
Phono Input Moving Coil
1 (adjustable loading)
Phono Input Moving Magnet
1 (adjustable loading)
Upgradeable Digital Audio Module
Yes: DA2
Digital Coaxial Input
2
Digital Optical Input
2
Digital MCT Input
1
Digital USB Input
1
HDMI (ARC) Input
1
Balanced Variable Output
1
Unbalanced Fixed Output
1
Unbalanced Variable Output
1
Headphone Output
1/4" High Drive with Headphone Crossfeed Director (HXD®)
Subwoofer Output
0
AM/FM Tuner option
No
Home Theater PassThru
Yes
Unbalanced Analog Connector Type
Premium gold-plated solid brass
Speaker Binding Post Type
Patented Solid Cinch™ Speaker Binding Posts
Service Port
1

DIGITAL AUDIO SPECIFICATIONS

Digital-to-Analog Converter (DAC) Type
8-channel, 32-bit/384kHz PCM/DSD, Quad Balanced

Digital Coaxial Input Sample Rate
24-bit/44.1kHz to 192kHz

Digital Optical Input Sample Rate
24-bit/44.1kHz to 192kHz

Digital MCT Input Sample Rate
16-bit/44.1kHz (CD)
DSD64 (SACD)

Digital USB Input Sample Rate
32-bit/44.1kHz to 384kHz (PCM)
DSD64, DSD128, DSD256, DSD512, DXD352.8kHz, DXD384kHz

CONTROL

Tone Controls
8-Band
Tone Bypass and Input Assign
Yes
RS232 Control Input
Yes
Power Control Output
1 Main, 2 Trigger
Rear Panel Data Port
4
Rear Panel IR Sensor Input
Yes
Input Level Match
Yes

GENERAL SPECIFICATIONS

Vacuum Tube or Solid State
Preamplifier: Vacuum Tube
Amplifier: Solid State
Output Type
Autoformer™
Output Meters
Yes
Dual Layer Chassis
Yes
Chassis Finish
Polished stainless steel & black painted steel
McIntosh Monogrammed Heatsinks™
Yes

WEIGHTS & DIMENSIONS

Unit Dimensions (W x H x D)
17-1/2” (44.5cm) x 9-7/16” (24 cm) x 19-3/4” (50.2cm)
Unit Weight
108 lbs (48.9kg)
Shipping Weight
141 lbs (63.9kg)