Genelec S-30-D Brochure

S30D
DATA SHEET
Genelec S30D
Digital Monitoring System
S30D Digital Monitoring SystemS30D Digital Monitoring System
S30D Digital Monitoring System
S30D Digital Monitoring SystemS30D Digital Monitoring System
Main features:Main features:
Main features:
Main features:Main features:
AES/EBU digital audio and analog audio inputs in a single speaker system
Digital audio thru
96 kHz / 24-bit digital audio interface
50 kHz audio output bandwidth for monitoring of 96 kHz digital audio
Automatic detection of word length and sampling rate
Perfect level match throughout the system from D/A converter to power amplifier outputs
Standard sound level conversion
High system integration
The Genelec S30D is a three-way Digital Monitoring System includ­ing a digital audio interface, bal­anced analog audio input, loud­speaker drivers, speaker enclo­sure, multiple power amplifiers and active, low level crossovers. All these are carefully aligned and housed within the loudspeaker cabinet. Featuring a 96 kHz/24-bit digital audio interface and a proprietary ribbon tweeter capable of repro­ducing up to 50 kHz acoustic output, the S30D is a no compro­mise design. The fast, low distor­tion amplifiers are capable of driv­ing a stereo system to peak out­put levels in excess of 122 dB SPL at 1 m with program signals. Versatile crossover controls al­low for precise matching of the speaker system to different acoustic conditions. Designed for relatively small control rooms and available in vertical and horizon­tal versions, this system is ideal for multichannel digital worksta­tions, mastering work, general purpose broadcasting and tele­vision studios, post production facilities and mobile recording vehicles. The high output and absolute reproduction accuracy make the S30D an ultimate nearfield monitor in recording stu­dios.
DIGITAL AUDIO
The quality of a digital audio sig­nal is defined by two parameters: word length and sampling rate.
The word length defines how pre­cisely the audio signal is repre­sented. Studio recording sys­tems use word lengths of 20 bits and above, typically 24 bits. The sampling rate determines what frequencies can be repre­sented in the digital audio signal. A higher sampling rate allows higher frequencies to be re­corded.
Converting the digital presenta­tion to an analog signal involves potential sources of error. The digital-to-analog converter may have inferior performance. It may be misaligned with the amplifiers. The interface between the con­verter and the amplifier may dis­tort the signal or it may change the frequency balance. Genelec S30D solves all of these prob­lems. The alignment of the whole system is carefully balanced to ensure precise monitoring of the digital signal.
INTEGRATED CONSTRUCTION
As the digital interface and ampli­fiers are built into the speaker enclosure, the only connections required are the mains supply and the digital (or analog) input signal, making the S30D very easy to set up and use.
The rugged amplifier is mounted into the enclosure with vibration isolators which act also as quick release hinges making possible maintenance operations very easy and straightforward. The
S P E A K E R C A B I N E T
P o w e r S u p p ly c i r c u i t s
T r e b le
M i d r a n g e
B a s s
M a i n s I n p u t
A n a l o g i n p u t
D i g i t a l i n p u t
D i g i t a l t h r u
D i g i t a l I n t e r f a c e
D i g i t a l L e v e l
L e v e l C o n t r o l
D r i v e r p r o t e c t i o n c i r c u i t s
C R O S S O V E R F I L T E R
A c o u s t i c c o n t r o l s
P o w e r O n / O f f M u t e
P O W E R A M P L I F I E R S
N e g . o u t p u t i m p e d a n c e c i r c u it s
The block diagram showing the digital interface, active crossover filters, power amplifiers and driver units.
speaker cabinet is constructed
AMPLIFIERS of veneered MDF, which is heavily braced to eliminate structural resonances.
The bass, midrange and treble
amplifiers each produce 120 W of
short term power with very low DIGITAL INTERFACE
THD and IM distortion. Special
attention is paid to electronics The digital audio interface con­sists of a digital audio receiver and a digital-to-analog converter (D/A converter). The digital input accepts an AES/EBU digital au­dio signal having a word length up to 24 bits. With an impedance adapter, the S30D can also ac-
design to obtain the best pos-
sible subjective sound quality.
The output impedance of the
woofer amplifier is negative to
improve acoustic transient re-
sponse. Drivers and amplifiers
are also protected for thermal
overload. cept SP-DIF signal. Digital thru allows the digital audio signal to
DRIVERS be re-transmitted to other S30D loudspeakers and digital audio equipment.
The 210 mm ( 8") woofer is loaded
with a 24 liters (0.85 cu.ft.) vented
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