10. Technical Information - BLUE SKY MediaDesk 2.1 Monitoring System Owner's Manual

10. Technical Information

This next section outlines the components, specifications and performance
data that make this product such a uniquely high value.
In order to continually improve all of its products Blue Sky reserves the right
to change these specifications without notice.
MediaDesk 2.1 Specifications
General Specifications
Input Impedance (all inputs)
20k Ohms balanced Input attenuator =+12 dBu
52k Ohms balanced Input attenuator =+24 dBu
5k Ohms unbalanced RCA input
Common Mode Rejection Ratio
40 dB typical @ 60Hz
Maximum Input Level
+12 / +24 dBu balanced
+14 dBu unbalanced
Subwoofer maximum output
Subwoofer output impedance
Amplifier power output Note:
Long term power output is limited by the speaker protection
circuitry
Short term power output 1 channel driven:
65 watts x 1 @ <.05% THD into 4 ohms @ 1 kHz
Short term power output 2 channels driven :
55 watts x 2 @ <.05% THD into 4 ohms @ 1 kHz
Subwoofer power output:
65 watts x 1 @ <.05% THD into 4 ohms @ 50 HZ
Mains voltages:
115/230V 50/60 HZ switchable
Maximum power consumption:
380 watts
(balanced input only)
(Set by input attenuator)
+24 dBu balanced
200 ohms balanced
Satellite
• Lacquer finished baffle
• Low diffraction front baffle design with flush mounted drivers
• Solid 3/4" MDF enclosure with 1" MDF baffle
• Dimensions: Please see page 12
• Weight 5 lbs.
• 1/4"x 20 inserts for attachment of OmniMount
• 3/8" x16 insert for attachment to microphone stand with adapter
(adapter not supplied)
• 4" cast frame Neodymium hemispherical woofer
• 1" fabric dome Neodymium tweeter
• Fully video shielded
• Satellite Low frequency crossover
• Tweeter Crossover Frequency
The following specifications are measured using the MediaDesk
Amplifier
• Frequency Response Satellite
• Voltage Sensitivity (at reference gain)
-12 dBu
1 dBu
240 mV
8" Sealed Box Subwoofer
• Fully video shielded.
• Vented motor
• Foam surround
• Coated non-resonance paper cone
• Solid 3/4" MDF construction with 1" MDF baffle
• Flush mounted driver
• Isolation feet are included.
• Inserts for optional attachment of spiked feet provided
• Dimensions: 16" H x 14" W x 15" D (including heatsink and grille)
• Weight 45 lbs.
• Frequency Response Subwoofer
Anechoic Response:
Typical In-Room Response:
110 Hz
2.0 kHz
+/- 2.5dB 300 to 10 kHz
+/- 3.0dB 110 to 20 kHz
= 90dB SPL @ 1M
Balanced Input attenuator set to +12 dBu
= 90 dB SPL @ 1M
Balanced Input attenuator set to +24 dBu
= 90 dB SPL @ 1M
RCA input 4 ohm nominal impedance
35 to 110Hz +/-3dB
20 to 200Hz (3000 Cubic Feet)
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