Audio Database

The

McIntosh MC7150 390,000yen(March, 1991 release)

Description
 
Stereo power amplifier which inherited the technology of MC2600 and was developed.

The functionality of the protector which the output transformer is adopted, keeps the operating temperature of amplifier low, and raises a stability, and prevents the overload of amplifier is also achieved.
Furthermore, he examines a material and a structure and many properties, such as a distortion, are raised.

The symmetry circuit developed by MC2600 is adopted as the amplifying circuit after the predrive stage.
In order to demonstrate the merit of a noise or little of this distorted circuitry fully fundamentally, the sorting using of the element to which the property was equal is carried out severely.
The metal can type high reliance transistor is used for the final stage which stands in a row to an output transformer a total of 3 parallel and 12 right-and-left channels.

At the time of the excessive input exceeding a clipping output, the power guarding system with an indicator operates in a protection network, and gain is automatically dropped on it, and the measures against equipping a demand-limiter circuitry etc. are taken.

The succession variable level control of a right-and-left independency is offered, and Input sensitivity can be adjusted freely.
Moreover, it is 2.5V input on a center it1 point.

There was a wood cabinet of a photograph as an option option.
The large-current capacity gilding terminal is adopted as an output-terminal.

Rear Internal

Rating of a mode
Form Stereo power amplifier
Output stereo: 150W+150W (a sinusoidal consecutive output, load-impedance 2/4/8ohm)
Output load impedance stereo: 2 ohms, 4ohm, 8ohm
Output frequency band 20Hz - 20kHz
THD stereo: 0.005% or less (at the time of 20Hz - 20kHz, 250mW-150W, and both ch(es) drive)
Cross modulation distortion
(20Hz - 20kHz)
stereo: 0.005% or less
(It is about the channel of one side at both the less than peek 300W and channel drive time. )
Frequency band
(at the time of 1W output)
20Hz - 20kHz, and +0 -0.25 dB
10Hz - 100kHz, and +0 -3.0 dB
SN ratio 105dB or less (at the time of an Output power A Wei Ted)
Dynamic head room 1.8dB(IHF)
Dumping factor 40 or more
Input impedance 20kohms (unbalance)
Input sensitivity At the time of an input VR center it1: 2.5V
At the time of input VR full: 1.4V
Power guarding It is less than THD2% to over-drive 14dB at 1kHz.
Power source AC100V, 50Hz/60 Hz, 0.5A-7A
Dimensions Width 410x height 145x depth of 416mm (termination included)
Weight 26.3kg
Remarks Option: Wood cabinet R52