Micromega IA-100 MM IA 100 BLACK User Manual
Product codes
MM IA 100 BLACK
A true family
IA100 is the second integrated amplifier in a line of 3 models which all share a certain number of
functionalities. The range was designed to be ergonomically intuitive and the interface easy to use, thus
enabling smooth transition when switching from one model to another.
functionalities. The range was designed to be ergonomically intuitive and the interface easy to use, thus
enabling smooth transition when switching from one model to another.
The concept
Made entirely out of galvanized steel, the role of the amplifier’s frame is to provide a stable and rigid base
for the various electronic boards. It also protects all of the electronic circuits against external
electromagnetic disturbances and high frequency exposure, which are very common in today’s
environment. The aluminum front panel adds a special touch to all of the models of this range, providing
an impression of elegant soberness, where minimalism and user-friendliness combine harmoniously.
A digital rotary encoder, driven by the unit’s micro-controller, allows you to set the volume level or balance
as well as other parameters such as headphone output level which can be set independently from the
master volume level. Six tactile keys give access to the essential functions while intentionally preserving
the simplest of ergonomics.
The blue 10 character dot matrix display, driven by MICROMEGA software, displays all necessary
information in real time. All connectors are GOLD plated and the loudspeaker connectors are identical to
those used by top of the range manufacturers. The loudspeaker connectors can take banana plugs as well
as stripped cables of up to 10 mm² cross-section. Additionally, the unit is equipped with totally insulated
cable inputs, eliminating the possibility of short-circuits between the loud speaker terminals. No other
integrated amplifier in the same category offers this type of connector. A 175µ-thick, screen-printed
polymer strip is placed on the rear panel of the unit to provide perfect insulation between the connectors
and the steel frame. It’s a very useful precaution and avoids the possibility of ground loops. Finally, the
power pack allows the use of standard IEC mains power cables. Although an IEC power cable is provided
with the unit, if desired, the user has the option of choosing another higher range power cable.
An optional system remote control handset is available. The aluminum anodized top cover, which comes
in either black or silver, matches the front panel perfectly. The brushed effect of the front panel gives the
product an unrivalled distinctive touch.
for the various electronic boards. It also protects all of the electronic circuits against external
electromagnetic disturbances and high frequency exposure, which are very common in today’s
environment. The aluminum front panel adds a special touch to all of the models of this range, providing
an impression of elegant soberness, where minimalism and user-friendliness combine harmoniously.
A digital rotary encoder, driven by the unit’s micro-controller, allows you to set the volume level or balance
as well as other parameters such as headphone output level which can be set independently from the
master volume level. Six tactile keys give access to the essential functions while intentionally preserving
the simplest of ergonomics.
The blue 10 character dot matrix display, driven by MICROMEGA software, displays all necessary
information in real time. All connectors are GOLD plated and the loudspeaker connectors are identical to
those used by top of the range manufacturers. The loudspeaker connectors can take banana plugs as well
as stripped cables of up to 10 mm² cross-section. Additionally, the unit is equipped with totally insulated
cable inputs, eliminating the possibility of short-circuits between the loud speaker terminals. No other
integrated amplifier in the same category offers this type of connector. A 175µ-thick, screen-printed
polymer strip is placed on the rear panel of the unit to provide perfect insulation between the connectors
and the steel frame. It’s a very useful precaution and avoids the possibility of ground loops. Finally, the
power pack allows the use of standard IEC mains power cables. Although an IEC power cable is provided
with the unit, if desired, the user has the option of choosing another higher range power cable.
An optional system remote control handset is available. The aluminum anodized top cover, which comes
in either black or silver, matches the front panel perfectly. The brushed effect of the front panel gives the
product an unrivalled distinctive touch.
The power supply
If there is a type of audio equipment whose quality depends almost entirely on its power supply, it’s the
integrated amplifier. Indeed this type of equipment requires very detailed attention in this regard because
several types of signals are treated at the same time and inside the same enclosure: small amplitude
weak current signals and high amplitude strong to very strong current signals if the loudspeaker’s
impedance is low. This is all the more true in our case as all MICROMEGA’s integrated amplifiers are
equipped with a Phono input, making this issue more delicate still. The Phono input requires extremely
optimized power supply filtering because in the Phono section, the signal has to be equalized according to
the RIAA standard curve. This is done by pre-emphasizing the bass-end band by 20 dB and by de-
emphasizing the high-frequency end by 20 dB, to obtain a linear frequency response between 20 Hz and
20 kHz when reading vinyl records. If de-emphasis doesn’t pose any particular problem except that of
respecting the phase, the pre-emphasizing of the low frequency register is more critical. The reason is that
the peak point of this pre-emphasis is precisely situated at 50 Hz, which is the mains supply frequency in
many countries.
integrated amplifier. Indeed this type of equipment requires very detailed attention in this regard because
several types of signals are treated at the same time and inside the same enclosure: small amplitude
weak current signals and high amplitude strong to very strong current signals if the loudspeaker’s
impedance is low. This is all the more true in our case as all MICROMEGA’s integrated amplifiers are
equipped with a Phono input, making this issue more delicate still. The Phono input requires extremely
optimized power supply filtering because in the Phono section, the signal has to be equalized according to
the RIAA standard curve. This is done by pre-emphasizing the bass-end band by 20 dB and by de-
emphasizing the high-frequency end by 20 dB, to obtain a linear frequency response between 20 Hz and
20 kHz when reading vinyl records. If de-emphasis doesn’t pose any particular problem except that of
respecting the phase, the pre-emphasizing of the low frequency register is more critical. The reason is that
the peak point of this pre-emphasis is precisely situated at 50 Hz, which is the mains supply frequency in
many countries.