Marenius SMF-5mkIII Скачать руководство пользователя страница 1

MARENIUS

MARENIUS

ELEKTRONIKUTVECKLING AB

P O Box 5086

SE-42605 V Frolunda, Sweden

Tel +46-31-691610

Fax +46-31-693188

[email protected]

- Designers of Electronics -

SMF-5mkIII

UltraLowNoise Microphone Amplifier

Two low-noise microphone inputs

• 

Input transformers by Lundahl

• 

Gain range 30 - 70 dB

• 

48V phantom power

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Balanced XLR outputs

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Headphones socket

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10 - 35 V power supply 

• 

Compact size

• 

SMF-5mkIII is a microphone amplifier with 

ultra-low noise level. It is intended for high-end 
recording with high resolution.

Each input has a top-of-the-line audio transformer 
by Lundahl. With this transformer the low-frequency 
distortion is negligible while frequency range is ex-
tended down to 5 Hz.
Harmonic distortion is down to 0.006% @ 1 kHz and 
+12 dBu output with 30 dB gain.
The input referred noise level is -131 dBu with a 
lowZ source.

Gain may be individually set for each channel. Basic 
gain is selected with a toggle switch for 30 or 50 dB. 

Additional gain and fine adjustment is controlled by a 

potentiometer for a maximum of +20 dB. Total gain is 
30 to 70 dB from input to the balanced XLR output.
There is also a headphones output that will double 
as unbalanced output.
Phantom power, 48 V may be selected by a toggle 
switch on the front panel.

Power supply is by a separate mains adapter.
The power supply may be in the range 10 - 35 VDC.

In contrast to the previous model SMF-5 this version 
will not run from internal battery power although an 
external battery may well be used.

SMF-5mkIII is housed in an EMC shielded case. 
An optional carrying case, made by PortaBrace, is
available.

Visit 

www.marenius.com

 for information about other MARENIUS products.

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