Specifications
Performance
Frequency Response (at 1 watt, 20 Hz - 20 kHz into 8 ohms): ±0.25 dB.
Signal to Noise Ratio (below rated full-bandwidth power, A-weighted): > 110 dB.
Total Harmonic Distortion (THD) (at 2 watts into 8 ohms): < 0.1%.
Total Harmonic Distortion (THD) Plus Noise (at full rated power): < 0.35%, 20 Hz to 20 kHz.
Intermodulation Distortion (IMD) (60 Hz and 7 kHz at 4:1, from full rated output to –30 dB):
< 0.35%.
Damping Factor (20 Hz to 100 Hz at 8 ohms): > 5000.
Crosstalk (below rated power, 20 Hz to 1 kHz): > 80 dB.
Common Mode Rejection (CMR) (20 Hz to 1 kHz): 55 dB, typically >70 dB.
DC Output Offset (shorted input): < ± 3 mV.
Input Impedance (nominal): 10 kilohms balanced, 5 kilohms unbalanced.
Maximum Input Level: +20 dBu typical.
Network: Onboard HiQnet™, compatible with standard 100 Mb Ethercom hardware.
Load Impedance: (Note: Safe with all types of loads)
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.
Input Sensitivity (referenced to 8 ohm rated output): 1.4V, 32 dB gain, and 26 dB gain.
Voltage Gain (referenced to 8 ohm rated output): MA-5000i: 37.1 dB to 22.2 dB
MA-9000i: 37.9 dB to 23.0 dB
MA-12000i: 39.3 dB to 24.5 dB
Required AC Mains: Universal AC input, 100- 240VAC, 50/60 Hz (±10%). Maximum AC mains voltage 264VAC.
AC Line Connector: Five cordsets supplied with amplifier (USA, UK, European, Australia, India).
Front Panel Controls and Indicators
Bridge Mode Indicator: Amber LED illuminates when the amplifier is set to Bridge-Mono mode.
Ready Indicator: Green LED, one per channel.
On (bright): Ready.
On (dim): Onset of compression.
Off: Thermal failure.
Signal Indicators: One green LED per channel.
Solid green: Input signal is above –40 dBu.
Bright green: Channel’s output signal has reached the onset of audible clipping.
Power Indicator: Blue LED indicates amplifier has been turned on and AC power is available. The
LED will flash when the AC line voltage is 10% above or below the nominal rated value.
Data Indicator: Yellow LED on front panel indi- cates network data activity. Data indicator flashes only when the amplifier is polled for data, or is polled to see whether it is online
Power Switch: Push-on/push-off switch with built-in green AC mains present indicator.
Volume Control: Precision detented attenuator with 31 steps, press-and-hold mute function.
Volume Control LED Ring: A ring of green LEDs around each volume control show the position of the control. Entire ring flashes when channel is muted. Can be converted to be a level meter.
Back Panel Controls, Indicators and Con- nectors
Power Cord Connector: Detachable 20 amp IEC inlet. Cord locks with supplied cord retention clip. Voltage range is indicated above IEC inlet.
Reset Switch/Circuit Breaker: If the current draw of the amplifier exceeds safe limits, this breaker automatically disconnects the power supply from the AC mains. The switch resets the circuit breaker.
Output Connectors: Two high-current, 50A Neu- trik® Speakon® NL4MLP (mates with NL4FC or NL4), one per channel. Ch 1 Speakon® is wired with Ch 1 and Ch 2 outputs for use with single 4-conductor cable. Two pairs of high-current,
60A color-coded 5-way binding posts (for banana plugs, spade lugs or bare wire).
Analog Input Connectors: A 3-pin female XLR connector for each channel.
Analog Loop Thru Connectors: Two male XLR passive analog loop through.
Mode Switch/Indicator: Sets amplifier to Stereo, Bridge, or Input Y mode. OFF=Stereo, YEL=Bridge, GRN=Y.
Network Connector: This Neutrik® Ethercon con- nector accepts an RJ-45 connector for HiQnet™ networking. Next to the connector is a yellow LINK ACT indicator that shows network activity, and a green 100Mb indicator that shows a 100Mb network connection.
Data Indicator: Yellow LED on back panel indi- cates network data activity. Data indicator flashes only when the amplifier is polled for data, or is polled to see whether it is online.
Preset Indicator: Green/yellow LED flashes to signal the number of the current preset. LED is green if current preset is active, or is yellow if cur- rent preset is modified.
Input Sensitivity Switch: Three-position switch providing 1.4V, 32 dB, and 26 dB settings for both channels.
Macro-Tech®i Series
Firmware/Software
Firmware can be updated at www.crownaudio.com > Support > Downloads.
Software features: User Presets, Clip Event Monitor, Input Signal Level Monitor, Output Signal Level Monitor, Thermal Headroom Level Monitor, Power/Standby Control, Signal Mute, Polarity Inverter, Input Signal Fader, Dynamic Gain Moni- tors (Ghost Faders), Amplifier Information, User and Channel Labels, Amplifier Mode, Amplifier Output Mode, Line Voltage Monitor, Error Report- ing, Auto Standby, Input Signal Compressor/Lim- iter, Peak Voltage Limiter, Average Power Limiter, Clip Eliminator, Thermal Limiter, Limiter Tie, Load Supervision.
Construction
Cooling: Dual-zone, microprocessor controlled, continuously variable speed fans, front-to-back airflow.
Front Panel: Cast aluminum with integrated handles.
Dimensions: 19 in. (48.3 cm) W x 3.5 in. (8.9 cm) H x 16.2 in. (41.1 cm) D.
Weight: 28 lbs (12.7 kg) net, 36 lbs (16.3 kg) shipping.
Protection: Amplifier is protected against reactive loads, faults and shorts. If one channel experi- ences a catastrophic failure, the entire amplifier will shut down.
Included Accessories: Rear rack ears, rack screws, operation manual, power cords, foam air filter.
Note: All measurements apply to units in Stereo mode with 8-ohm loads and rated input sensitivity unless oth- erwise specified.
Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439 TEL: 574-294-8200 FAX: 574-294-8FAX
Customer Service: 800-342-6939 or 574-294-8200. www.crownaudio.com
Specifications subject to change without prior notice. Latest information available at www.crownaudio.com.
Crown, Macro-Tech and Crown Audio are registered trademarks; HiQnet is a trademark of Crown International. Other trademarks are the property of their respective owners. Printed in U.S.A.
© 2008 Crown Audio® Inc
