Sound Performance Lab 9844 User Manual
Model 9844
Manual
Vacuum T ube Microphone Preamplifier
By Hermann Gier and W olf gang Aichholz
Version 1.4 - 5/2000
The information in this document has been
carefully verified and is assumed to be
correct. However Sound Performance Lab
(SPL) reserves the right to modify the product
described in this manual at any time.Changes
without notice.This document is the property
of SPL and may not be copied or reproduced
in any manner, in part or full without the
authorisation of SPL.
Limitations of Liability:
In no event will SPL be liable for any damages,
including loss of data, lost profits, cost of
cover or other special,incidental,consequential or indirect damages arising from the use
of the unit, however caused and on any
theory of liability. This limitation will apply
even if SPL or an authorised dealer has been
advised of the possibility of such damage.
SPL electronics GmbH
P.O.Box 12 27
D- 41368 Niederkruechten,Germany
Phone +49 - 21 63 / 98 34-0
Fax +49 - 21 63 / 98 34-20
eMail:info@ soundperformancelab.com
GoldMike
Model 9844
Manual
© 2000 SPL electronics GmbH. All rights reserved.
3
Contents
Foreword .................................................................................................. 3
Introduction ............................................................................................ 4
Hookup ..................................................................................................... 5
Installation & Connections ................................................................. 5
Power Supply ............................................................................................ 6
Tech Talk .................................................................................................. 7
Control elements ................................................................................. 9
MIC GAIN............................................................................................. 9
48V ....................................................................................................... 9
REVERSE ..............................................................................................10
PAD ....................................................................................................... 10
HIGHPASS ...........................................................................................11
FLAIR ....................................................................................................11
Displays ...............................................................................................11
Specifications .........................................................................................12
Warranty ...................................................................................................13
Foreword
Thanks
I would like to start with my thanks to all our staff,who created
what is to be described here.The importance of their exceptional
qualification and talents cannot be overestimated.Special thanks
to Ruben Tilgner for his creativity.
Our products are often tested and compared in many publications and by our customers themselfs and constantly valued with
best results. I would like to pass on this broad appreciation to
those,who deserve it – my excellent colleagues .
Hermann Gier
Dear customer,
Thank you for the confidence you have shown towards
SPL electronics GmbH by purchasing the SPL GoldMike.You have
decided to use an innovative microphone preamp which
provides excellent sound quality by combining exemplary specifications with highest manufacturing standards. Please read this
manual carefully to ensure you have all the information you need
to use the Gold Mike.We wish you every success with it.
Your Sound Performance Lab-Team
4
The GoldMike is another jewel in the SPL Tube series.Like all SPL
tube processors,the G oldM ike combines the unique sonic qualities
of tube technology with state-of-the-art manufacturing, meticulous component selection and high-tech conception.
This latest product,a dual-channel tube microphone preamplifier
with superb sonic qualities, is particularly suited for recording
vocals and acoustic instruments. You will be surprised by not
only its precision but also the natural impact of different vocal
timbres – the silky warmth of a pristine tube sound is needed by
more than just acoustic guitars!
You don't have to listen to those dead and sterile HD recordings.
GoldMike's whisper quiet performance makes it ideal for digital
recording.Even the most demanding recording subjects,such as
a choir,are easily handled. The Class A tube amp, designed as
two independent mono blocks, guarantees absolute channel
separation.Your stereo recordings in particular will benefit from
a wider stereo depth.
GoldMike's technical standards are predicated on an uncompromising effort to combine the sonic advantages of tubes with the
experience of more than 12 years of research in semi-conductor
amplification design.
The GoldMike allows for up to 72 dB of gain – a value tube-only
designed preamps can't match.The SPL tube/IC construction,
on the other hand, superbly combines today's standards with
such trademark tube characteristics: improved spatial depth,
rich detailed imaging, warm and smooth sonics. Moreover, the
GoldMike delivers high common-mode-rejection and ultra linear
amplification in addition to the high gain capabilities.
Features
• Unique "FLAIR" circuitry enhances the presence and
intelligibility of any signal.Vocals,for example,
seem to move closer.Pristine,non-colored "softening"
of very harsh and aggressive sounds
• 50Hz high-pass filter
• Phase reverse switch
• 30dB pad
• Switchable 48-volt phantom power with
independently filtered power supply
• High-qualit y ALPS potentiometers
• Click-free switches
• Five LEDs per channel
• Two backlit VU meters
• Warm-up LED indicates tube status during warm up
• Star ground wiring scheme for best sound performance;
extra wide PCB ground connections guarantee
stable voltage distribution
• Power supply with state-of-the-art filtering schemes and
solid power reserves (6000 µF in the main supply
and 400 µF in the tube supply)
• XLR inputs
• XLR and 1/4" outputs (c an be used individually or
simultaneously)
Introduction
Loading...