|CROWN MA-1202 Professional Amplifier|
MA-1202 Professional Amplifier
Features Ultra-Low Distortion: Crown's patented grounded bridgeTM circuitry generates incredible voltage swings with ultra-low distortion and superior reliability.
VZ Power Supply Technology: The Macro-Tech 3600VZ and 5002VZ use patented power-supply technology which provides enormous power density and an optimum power match with a wide range of loads. Current Indicator: (Macro-Tech 5002VZ only) Cutting edge current flow/current limit (ILOAD/ILIMIT) indicators tell you if current is flowing to the loads, and if the loads demand more current than the amplifier can deliver. On-Board Compressors: (Macro-Tech 5002VZ only) Each channel has a custom compressor that reduces peak signal levels during input overload and output clipping.
The compressors can be set for fast or slow operation, or turned off for output clipping. Loudspeaker Offset Integration (LOI): (Macro-Tech 5002VZ only) Each channel has a high-performance loudspeaker protection circuit that compensates for DC offset to protect woofers, and filters ultrasonic frequencies to protect tweeters. ODEP(R) Protection: Patented Output Device Emulation Protection (ODEP) protects the amplifier and keeps the show going under adverse conditions that cause lesser amplifiers to fail. Front panel indicators show each channel's ODEP status. Several PIPTM modules also provide powerful ODEP-driven features. Distortion Indicator: Advanced Input/Output Comparator (IOC(R)) alerts you if the amplifier causes any distortion of 0.05% or more.
PIP compatibility: Accommodates Programmable Input Processor (PIP) accessories that are used to customize the amplifier for specific applications. MA 02-Series amps are PIP2 compatible. Selectable Mono Modes: (Does not apply to Macro-Tech 24x6 and 36x12) Bridge-Mono mode provides double output voltage and Parallel-Mono mode provides double output current from a single channel. Unique Dual-Level Design: (Macro-Tech 24x6 and 36x12 only) Each channel has a different power level for maximum amplifier utilization in biamplified and triamplified systems. Selectable Sensitivities: Choose from three input sensitivities: 0.775 volts or 1.4 volts for full rated power into 8 ohms, or a voltage gain of 26 dB. Detented Level Controls: Detented level controls make it easy to set and reset precise levels. No-Fault Warranty: Crown's exceptional Three-Year, No-Fault, Full Warranty even covers round-trip shipping, and can be extended up to six years in the U.S.A.1 THX Approved: (Macro-Tech 602, 1202, 2402 and 5002VZ only) Lucasfilm(R) approved for THX(R) sound system installations. Power Load Impedance: Safe with all types of loads. Rated for 2 to 16 ohms in Stereo, 4 to 16 ohms in Bridge-Mono and 1 to 4 ohms in Parallel-Mono mode. Required AC Mains: 50/60 Hz; 100, 120, 220 and 240 VAC (±10%) units are available. All draw 100 watts or less at idle. Current, voltage and frequency requirements are provided on the unit’s back panel.
Performance Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1 watt . Phase Response: ±10 degrees from 10 Hz to 20 kHz at 1 watt . Signal-to-Noise Ratio, A-weighted: Better than 105 dB below rated full bandwidth power. 20 Hz to 20 kHz: Better than 100 dB below full bandwidth power. Total Harmonic Distortion (THD): full bandwidth power, Less than 0.05% from 20 Hz to 1 kHz increasing linearly to 0.1% at 20 kHz. Intermodulation Distortion (IMD): (60 Hz and 7 kHz at 4:1) Less than 0.05% from 163 milliwatts to full bandwidth power. Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz. Slew Rate: (Slew rates are limited to useful levels for ultrasonic/RF protection). Greater than 13 volts per microsecond. Controls Enable: A front panel push button used to turn the amplifier on and off. Level: A front panel rotary control for each channel with 31 detents used to control the output level. Stereo/Mono: A three-position back panel switch used to select Stereo, Bridge-Mono or Parallel-Mono mode.
Sensitivity: A three-position switch inside the PIP compartment used to select the input sensitivity for both channels: 0.775 volts or 1.4 volts for standard 1 kHz power, or a 26 dB voltage gain. Reset (Macro-Tech 2402 only): A back panel push button for each channel used to reset the circuit breaker that protects each power supply. Indicators Enable: This amber front panel indicator shows the on/off status of the low-voltage power supply. Signal/IOC: Each channel has a green front panel indicator that flashes to show amplifier output. If a channel’s output waveform differs from its input by 0.05% or more, the indicator flashes brightly to show distortion. This function provides proof of distortion-free performance. In Parallel-Mono mode, the Channel 2 light stays on. ODEP: Each channel has an amber front panel indicator that shows thermal-dynamic energy reserve. Normally, each ODEP indicator is lit to show available reserve energy.
In the rare event that a channel has no reserve, its indicator will dim in proportion to ODEP limiting. An ODEP indicator may also turn off under other conditions. Input/Output Input Connector: Two balanced 1/4-inch phone jacks on the back panel and two balanced three-pin female XLR connectors on the factory-installed PIP2-FXQ. Input Impedance: Nominally 20 k ohms, balanced. Nominally 10 k ohms, unbalanced. Input Sensitivity: Settings include 0.775 volts or 1.4 volts for standard 1 kHz power, or a 26 dB voltage gain. Output Connectors: Two sets of color-coded 5-way binding posts (for banana plugs, spade lugs or bare wire). Output Impedance: Less than 10 milliohms in series with less than 2 microhenries. DC Output Offset: (Shorted input) ±10 millivolts. Output Signal Stereo: Unbalanced, two-channel. Bridge-Mono: Balanced, single-channel. Channel 1 controls are active; Channel 2 should not be used. Parallel-Mono: Unbalanced, single-channel. Channel 1 controls are active; Channel 2 controls are bypassed. Protection Macro-Tech amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature, chain destruction phenomena, input overload damage and high-frequency blowups. They also protect loudspeakers from input/output DC and turn-on/turn-off transients.
If unreasonable operating conditions occur, the patented ODEP circuitry will proportionally limit the drive level to protect the output transistor stages, particularly in the case of elevated temperature. Transformer overheating will result in a temporary shutdown of the affected channel; when it has cooled to a safe temperature, the transformer will automatically reset itself. Controlled slew-rate voltage amplifiers prevent RF burnouts. And input overload protection is provided by current-limiting resistance at the input. Turn On: Four-second delay with no dangerous transients. Construction Steel chassis with durable black finish, aluminum front panel with Lexan overlay, and specially designed flow-through ventilation from front to side panels. Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation. Dimensions: Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height, 16 inch (40.6-cm) depth behind the mounting surface and 2.5-inch (6.3- cm) protrusion in front of the mounting surface. Approximate Weight: Center of gravity is 6 inches (15.2 cm) behind front mounting surface. 120 VAC, 60 Hz Units: Macro-Tech 602: 39 pounds, 9 ounces (17.9 kg) net; 44 pounds (19.9 kg) shipping weight. Macro-Tech 1202: 44 pounds, 1 ounce (20.0 kg) net; 47 pounds (21.3 kg) shipping weight. Macro-Tech 2402: 51 pounds, 12 ounces (23.5 kg) net; 65 pounds (29.5 kg) shipping weight. International Units: Macro-Tech 1202: 42 pounds, 12 ounces (19.4 kg) net; 46 pounds, 13 ounces (21.3 kg) shipping weight.
Crown's Three Year, Full, No-Fault Warranty Crown offers a Three Year, Full, No-Fault Warranty for every new Crown amplifier—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown amplifier is warranted to meet or exceed original specifications for the first three years of ownership. During this time, if your amplifier fails, or does not perform to original specifications, it will be repaired or replaced at our expense. About the only things not covered by this warranty are those losses normally covered by insurance and intentional abuse. And the coverage is transferable should you sell your amplifier. See your authorized Crown dealer for full warranty disclosure and details. For customers outside of the USA, please contact your authorized Crown distributor for warranty information