background image

23

CHAPTER 6: X-800C SPECIFICATIONS

X-800C Specifications

ACOUSTICAL

Operating Frequency 
Range

20 Hz – 200 Hz

Note:

 Recommended maximum operating frequency range. Response depends on loading condi-

tions and room acoustics.

Frequency Response

23 Hz – 160 Hz ±4 dB

Note:

 Measured free field with 1/3 octave frequency resolution at 4 meters.

Phase Response

32 Hz to 175 Hz ±30°

Maximum Peak SPL

136 dB

Note:

 Measured with music, referred to 1 meter.

Dynamic Range

>110 dB

Coverage

360° for a single unit; varies with number of units and configuration

TRANSDUCERS

Low Frequency

Two 18” cone drivers
Nominal impedance: 8 

Voice coil size: 3”
Power-handling capability: 600 W (AES) each

Note:

 Power handling measured using AES standards: transducer driven continuously for two 

hours with a band limited noise signal having a 6 dB peak-average ratio.

AUDIO INPUT

Type

Differential, electronically balanced

Maximum Common 
Mode Range

±15 V DC, clamped to earth for voltage transient protection

Connectors

Female XLR input with male XLR loop output

Input Impedance

10 k

 differential between pins 2 and 3

Wiring

Pin 1: Chassis/earth through 220 k

, 1000 pF, 15 V clamp network to provide virtual ground lift at 

audio frequencies
Pin 2:
Pin 3: Signal –
Case: Earth ground and chassis

DC Blocking

None on input; DC blocked through signal processing

CMRR

>50 dB, typically 80 dB (50 Hz – 500 Hz)

RF Filter

Common mode: 425 kHz

Differential mode: 142 kHz

TIM Filter

<80 kHz, integral to signal processing

Nominal Input Sensi-
tivity

0 dBV (1.0  V rms, 1.4 V peak) continuous is typically the onset of limiting for noise and music

Input Level

Audio source must be capable of pro20 dBV (10 V rms, 14 V peak) into 600 



to produce 

the maximum peak SPL over the operating bandwidth of the loudspeaker

AMPLIFIER

Type

Two-channel complementary MOSFET output stages (class AB/H)

Output Power

1240 W total (2 x 620 W)

Note:

 Wattage rating based on the maximum unclipped burst sine-wave rms voltage the amplifier 

will produce into the nominal load impedance; both channels 70 V rms (100 V peak) into 8 ohms.

Summary of Contents for X-800C

Page 1: ...Keep these important operating instructions Check www meyersound com for updates OPERATING INSTRUCTIONS X 800C High Power Cinema Subwoofer ...

Page 2: ...d SIM are registered trademarks of Meyer Sound Laboratories Inc Reg U S Pat Tm Off All third party trademarks mentioned herein are the property of their respec tive trademark holders Manufacturer s Name Meyer Sound Laboratories Inc Manufacturer s Address 2832 San Pablo Avenue Berkeley CA 94702 2204 USA Declares that the product Product Names X 800C High Power Cinema Subwoofer Product Options All C...

Page 3: ...ker Handles are for carrying only CAUTION Rigging should only be done by experienced professionals 13 Unplug this loudspeaker during lightning storms or when unused for long periods of time 14 Disconnect the mains plug before disconnecting the power cord from the loudspeaker 15 Refer all servicing to qualified service personnel Servic ing is required when the loudspeaker has been damaged in any wa...

Page 4: ...nes elektrischen Schlages auf ein Minimum zu reduzie ren den Lautsprecher vom Stromnetz trennen bevor ggf ein Audio Schnitt stellensignalkabel angeschlossen wird Das Netzkabel erst nach Herstellung aller Signalverbindungen wieder ein stecken Der Lautsprecher an eine geerdete zweipolige Dreiphasen Netzsteckdose anschließen Die Steckdose muß mit einem geeigneten Abzweigschutz Sicherung oder Leistung...

Page 5: ... 10 Powering Up the X 800C 11 Electrical Safety Guidelines 11 Chapter 3 Amplification and Audio 13 Audio Connectors 13 Limiting 14 Input Polarity Switch 15 Amplifier Cooling System 15 Chapter 4 RMS Remote Monitoring System 17 RMS Software 17 RMS Module 18 Resetting the RMS Module 19 Chapter 5 System Design and Integration Tools 21 MAPP Online Cinema 21 SIM 3 Measurement System 22 Chapter 6 X 800C ...

Page 6: ...CONTENTS vi ...

Page 7: ...XP cinema installations The linear self powered X 800C offers low frequency output down to 20 Hz with clean punchy transients and provides excellent phase coherence for smooth transitions between screen channels and LFE channels The X 800C includes two Meyer Sound long excursion high efficiency 18 inch drivers housed in an optimally tuned vented cabinet Output rolls off well below 250 Hz avoiding ...

Page 8: ...nse impulse response and maximum SPL output of Meyer Sound cinema loudspeakers Meyer Sound s optional RMS remote monitoring system provides comprehensive monitoring of system parameters on a Windows based computer The X 800C cabinet is constructed of premium birch ply wood and coated with a durable low gloss black textured finish Meyer Sound EXP Cinema Loudspeakers X 800C Subwoofer Acheron Screen ...

Page 9: ... nal marked with an L Connect the yellow and green wire to the green or green and yellow terminal or the terminal marked with an E CAUTION When creating AC power cables and distribution systems it is important to pre serve AC line polarity and connect the earth ground on both ends of the cable The X 800C requires a grounded connection Always use a grounded outlet and plug It is extremely important...

Page 10: ...nded operating win dows 85 134 V AC and 165 264 V AC The ground line must always be used for safety reasons and the line to ground voltage should never exceed 250 V AC typically 120 V AC from line to ground X 800C CURRENT REQUIREMENTS The current draw for the X 800C is dynamic and fluctuates as operating levels change Since different cables and cir cuit breakers heat up at varying rates it is impo...

Page 11: ... mode is auto matically adjusted as necessary 3 The primary fan turns on 4 The power supply ramps up 5 The green Active LED on the user panel lights up indi cating the subwoofer is ready to output audio CAUTION If the Active LED does not light up or the X 800C does not output audio after ten seconds remove AC power immediately and verify that the voltage is within the required range If the problem...

Page 12: ...CHAPTER 2 POWER REQUIREMENTS 12 ...

Page 13: ...m TIP If unwanted noise or hiss is produced by the loudspeaker disconnect its input cable If the noise stops there is most likely nothing wrong with the loudspeaker To locate the source of the noise check the audio cable source audio and AC power X 800C Rear Panel with NEMA L6 20 AC Connector ATENCIÓN ACCESO INTERNO SOLO AUTORIZADO A PERSONAL TÉCNICO CALIFICADO ACHTUNG GEHÄUSE NICHT ÖFFNEN WARTUNG...

Page 14: ...ers in a system have reversed polarity fre quency response and coverage will be significantly degraded LIMITING The X 800C employs Meyer Sound s advanced TruPower limiting Conventional limiters assume a constant loud speaker impedance and set the limiting threshold by mea suring voltage alone This method is inaccurate because loudspeaker impedances change as frequency content in the source materia...

Page 15: ...and clipping As the X 800C s input signal is increased beyond the clamping point the output signal remains at a fixed level protecting the drivers and minimizing negative sonic effects The X 800C operates normally and safely when the Exc Clamp LED is on for no longer than two seconds and off for at least one second INPUT POLARITY SWITCH The X 800C includes an Input Polarity switch on its rear pane...

Page 16: ...e fan turns off when the heat sink temperature lowers to 68 C NOTE In the unlikely event that the reserve fan does not keep the X 800C heat sink tempera ture below 85 C the unit automatically shuts down until AC power is removed and reapplied If the X 800C shuts down again after cooling and re apply ing AC power contact Meyer Sound for repair infor mation Dust and the Amplifier Module Operating th...

Page 17: ...an easily be mute enabled by installing the Mute Jumper For more information refer to the RMS User Guide NOTE The RMS software allows you to dis able Mute and Solo functions to eliminate any possibility of accidentally muting loudspeakers Mute and solo capability can also be disabled by removing the Mute Jumper from RMS modules For more infor mation refer to the RMS User Guide NOTE RMS does not co...

Page 18: ...the RMS user panel are used exclusively by RMS and have no effect on the acoustical or electrical activity of the X 800C Service LED Red The red Service LED provides the following feedback When unlit the loudspeaker is successfully connected to the network and commissioned When blinking once every two seconds the loudspeaker is connected to the network but not yet commissioned in the RMS software ...

Page 19: ...rovided to allow for easy connection of multiple daisy chained loudspeakers on the network Included with each RMS equipped loud speaker are RMS cable connectors and mounting blocks for constructing RMS cables The RMS blocks allow the cables to be securely attached to the RMS module with screws RESETTING THE RMS MODULE You can use the Reset and Service buttons to reset the RMS module which will cau...

Page 20: ...CHAPTER 4 RMS REMOTE MONITORING SYSTEM 20 ...

Page 21: ...Sound loud speaker measurements Performance predictions for each loudspeaker are based on 360 1 48th octave band mea surements taken with a SIM audio analyzer in the Meyer Sound anechoic chamber The extraordinary consistency between Meyer Sound loudspeakers guarantees that pre dictions from MAPP Online Cinema will closely match their actual performance MAPP Online Cinema predictions are requested ...

Page 22: ...ency and phase domain information Source Independent Measurement Technique The SIM 3 audio analyzer implements Meyer Sound s source independent measurement technique a dual channel method that accommodates statistically unpredictable exci tation signals Any excitation signal within a desired fre quency range can be used to obtain highly accurate measurements for acoustical or electronic systems Fo...

Page 23: ... earth for voltage transient protection Connectors Female XLR input with male XLR loop output Input Impedance 10 k differential between pins 2 and 3 Wiring Pin 1 Chassis earth through 220 k 1000 pF 15 V clamp network to provide virtual ground lift at audio frequencies Pin 2 Signal Pin 3 Signal Case Earth ground and chassis DC Blocking None on input DC blocked through signal processing CMRR 50 dB t...

Page 24: ...Continuous Current 8 A rms 115 V AC 4 A rms 230 V AC 10 A rms 100 V AC Burst Current 15 A rms 115 V AC 8 A rms 230 V AC 18 A rms 100 V AC Ultimate Short Term Peak Current 22 A peak 115 V AC 11 A peak 230 V AC 25 A peak 100 V AC Inrush Current 7 A peak 115 V AC 7 A peak 230 V AC 10 A peak 100 V AC PHYSICAL Enclosure Premium birch plywood Finish Low gloss black textured finish Dimensions 31 w x 40 h...

Page 25: ...X 800C OPERATING INSTRUCTIONS 25 X 800C COMPLIANCE X 800C DIMENSIONS X 800C Dimensions 40 00 1016 mm 31 00 787 mm 20 50 521 mm 20 00 508 mm 9 50 241 mm ...

Page 26: ...CHAPTER 6 X 800C SPECIFICATIONS 26 ...

Page 27: ......

Page 28: ...eyer Sound Laboratories Inc 2832 San Pablo Avenue Berkeley CA 94702 www meyersound com T 1 510 486 1166 F 1 510 486 8356 2012 Meyer Sound Laboratories Inc X 800C Operating Instructions PN 05 087 011 01 A ...

Reviews: