EL-111 Dual Mic-Line Preamplifier

€ 1,960

EL-111 mic preamplifier has been conceived to give to the professional user a unit that combines high reliability, rugged design, audio quality, versatility and ease of use. EL-111 is perfect for recording every kind of music from classic, pop/rock, electronic, and in all the situations where the maximum sound quality and special attention to dynamic range and signal to noise ratio is needed.

The EL-111 technical specifications shows that it is the perfect audio system for actual digital recording 24bit/192kHz environments where superior performance is required. EL-111 is based on the use of the latest circuit topologies, characterized by very low distortion, ultra-low noise and very wide frequency response. The amplifier architecture is based on two high dynamic range gain stages in order to avoid saturation. The EL-111 is characterized by two independent gain controls for Mic and Line In.

The Elite series has been conceived as a modular series for maximum reliability and performance.

Even if the input stage of the EL-111 do not saturate up to +24 dBu, a special protection circuit limits the input level at +20 dBu in order to prevent any damage. The extended dynamic range avoids the necessity of the input pad.

The EL-111 contains a special circuit that allows the connection of microphones even if the unit is turned on with the Phantom Power activated. The EL-111 is dedicated (due to his absolute sonic level quality) to high professional vocal recordings, classical instruments, high dynamic range instruments such as drums and percussions.

Number of Channels: 2
Power Supply Linear Regulator (Balanced C-Core Transformer)
Operating Voltage 220V 50 Hz / 110V 60 Hz switchable version
Power Consumption 20 W
Microphone Input Electronically balanced, Input Impedance > 4 KΩ
Microphone Gain 66 dB range with a continuous potentiometer control.
Max input level +20 dBu (internally limited to +12 dBu).
Line Input Unbalanced, Impedance 47 KΩ.
Line Gain 30 dB range with a continuous potentiometer control,
Level 0/-30 dBu, Max +23 dBu.
Bandwidth 5 - 200.000 Hz -1dB, perfect square wave up to 20 KHz
Distortion + Noise <0.003% ( typical 0.001 %).
Output Electronically Balanced,
Level +4 dBu. Max +28 dBu (Unbalanced -6 dB),
Output Impedance 50 Ω (miminum external load 600 Ω)
Front Panel Controls Line Gain Pot.,
Microphone Gain Pot.,
48V Phantom Power button,
Phase Reverse button,
Mic-Line switch.
Front Panel Input Connectors 1/4” TRS jack
Front Panel Indicators Electromechanical VU meters with LED backlight,
3 x red LEDs (48V Phantom Power,Phase Reverse ,Peak Level set to 6dB below clipping ).
Rear Panel Main Switch Power On/Off switch.
Rear Panel Controls BAL/UNBAL switch on each channel,
Power on/off switch.
Rear Panel Input Connectors Balanced XLR female (mic).
Rear Panel Output Connectors Balanced XLR male.
AC mains IEC C13 16 A connector, AC mains cord with IEC Schuko 16A.
Construction 19" rack mount metal box
Dimensions W 483 mm / 19”, H 88.5 mm/3.5” (2 RU), D 225 mm / 8.86”.
Weight 2.8 kg.

    EL-111 Key-Technologies


    Modular means that the unit can be custom configured by choosing the right module from a set of standard modules or by choosing custom designed modules suitable for specific applications.

    Large Bandwidth (LB) means a very fast transient response able to represent the original sound with the maximum temporal resolution. LB is required to improve the perception of a “real sound” and to represent the details of the original sound.

    Large bandwidth plus very low total harmonic distortion means a perfect square wave reproduction.

    Ultra Low Noise (ULN) active and passive components and ULN design techniques. This requirement is especially important when the audio bandwidth is large as in the case of ARREL Audio products.

    Very High Dynamic Range (VHDR) means that the saturation probability of the output stages is extremely low. This is obtained by using special rail to rail circuits and by increasing the power supply voltage of the analog circuits.

    Electromechanical tolerance means that electromechanical components are doubled in every situation in which maximum reliability it is important due to a frequent use (switches, push buttons, potentiometers).

    Through Hole technology means the maximum reliability in terms of thermal and mechanical stresses especially for connectors and electromechanical components.

    In the ARREL preamplifiers, special input circuits and a high output dynamic range output stage guarantees no saturation, consequently the input pad is not required.