Amplifier 擴音機 / MICROMEGA / IA-400
IA-400

Micromega, with over 20 years of experience in amplifier development, is proud to announce IA-400, a very powerful integrated amplifier capable of driving almost all types of speakers, even the most demanding ones

Introduction

The preamplifier is a very low noise state of the art gain section with extremely low noise power supplies and sophisticated layout to avoid any ground loop. A specific rcore transformer is dedicated to all low levels signals, avoiding cross coupling between the two sections and preventing any disturbance from the mains line to enter the product. Ultra low noise regulators are feeding the preamplifier section to allow very accurate low level resolution

Specification

MM Phono Input :
1

Phono Input Sensitivity :
18mV/47kΩ

Stereo Analog Inputs :
5

Analog inputs sensitivity/impedance :
280mV/100kΩ

Headphone output :
1

Monitor Loop :
1

Sub input pass-through :
1

Sub out:
1

Sub ouput cut-off frequency (-3dB) :
400Hz

Processor input :
1

Pre out :
1

Output power (both channels/4Ω) :
400W

Frequency response (+0/-3dB) :
10Hz - 50kHz

Power bandwidth :
20Hz - 35kHz

Output impendance :
< 150mΩ/f < 20kHz

Output noise (20Hz-20kHz) :
< 30μV

THD (20Hz-20kHz 1/2 power) :
< 0.01%

Signal to noise (A weighted) :
> 96dB

IR remonte control :
Yes

IR remonte protocol/frequency :
RC5/36kHz

RS232 remote :
Yes

Mains voltage :
100V-120V-220V-240V

Mains frequency :
50Hz-60Hz

Power consumption (max) :
1000W

Dimensions (W x H x D) :
430 x 95 x 365

Weight :
12Kgs

Feature

Input switching is done by relays and the input impedance of 100kΩ guarantees that the preamplifier section will not load the different sources connected to it. Volume control is achieved by a digitally controlled resistor ladder with extremely low distortion. The power amplifier section has its own 1kVA toroïdal “quiet design” power transformer. The modules are class D modules with no less that 400W/4Ω output power capacity