Power Base Series Power Amplifiers

Required AC Mains: Current, frequency and voltage requirements are provided on each unit’s back panel. All models draw 90 watts or less at idle.

Power Base-1: Draws up to 6 amps of current.

Power Base-2 : Draws up to 10 amps of current.

Power Base-3 : Draws up to 15 amps of current.

Low-Voltage Power Supply: A ±24 VDC fanformer supply (fan motor winding) regulated to ±15 VDC.

AC Connector: An appropriate AC line cord and plug are provided. 120 VAC, 60 Hz units have a standard 3-wire, 15-amp grounded connector (NEMA 5-15P).

Controls

Power: A front panel rocker switch used to turn the amplifier on and off.

Level: A back panel rotary potentiometer for each chan- nel 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 back cover plate used to select the input sensitivity for both channels: 0.775 volts or 1.4 volts for standard 1 kHz power, or 26 dB voltage gain (see Section 2.3).

Input Ground Lift: A two-position back panel switch used to isolate the phone jack and chassis grounds.

Reset (Power Base-3only): A back panel push but- ton used to reset the circuit breaker that protects the power supplies.

Indicators

Power: This amber indicator shows the on/off status of the low voltage power supply.

Input/Output

Input Connector: Balanced ¼ inch phone jacks. See Section 5 for XLR and barrier block accessories.

Input Impedance: Nominally 20 K ohms, balanced; 10 K ohms, unbalanced.

OutputConnector:Twosetsofcolor-coded5-waybbinding 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: Less than 10 millivolts.

Output Signal

Stereo: Unbalanced, two-channel.

Bridge-Mono:Balanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.

Parallel-Mono:Unbalanced, single-channel. Channel 1 controls are active; Channel 2 controls should be turned down and not used.

Protection

Power Base amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature, chain destruction phenomena, input overload and high-frequency blowups. They also protect loudspeakers from input and output DC, as well as providing protection from turn-on/turn-off transients.

If operating conditions are unreasonable, the patented ODEP circuitry proportionally limits the drive level to pro- tect the output transistors, particularly in the case of el- evated temperature. A thermal switch imbedded in the transformer protects the power supplies from overload. In the rare event that a transformer overheats, the ther- mal switch removes power, waits until the unit has cooled to a safe temperature and then resets itself.

Turn On: Four second delay with no dangerous tran- sients. Contact us if you need to change the delay.

Construction

Durable black finish on steel chassis with special “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 and 16-inch (40.6 cm) depth behind the mounting surface.

Approximate Weight: Center of gravity is 6 inches (15.2 cm) behind front mounting surface.

120 VAC, 60 Hz Units:

Power Base-1: 30 pounds (13.6 kg) net; 34 pounds (15.4 kg) shipping weight.

Power Base-2: 34 pounds (15.4 kg) net; 38 pounds (17.2 kg) shipping weight.

Power Base-3: 36 pounds (16.3 kg) net; 40 pounds (18.2 kg) shipping weight.

Page 14

Page 14
Image 14
Crown 1, 3, 2 manual Indicators, Input/Output, Output Signal, Protection, Construction

2, 3, 1 specifications

Crown 1,3,2 is a notable advancement in the field of crown-forming technology, designed to enhance efficiency and precision in various applications. Its primary features focus on a unique crown configuration that combines elements of 1, 3, and 2, allowing for versatility in production. This design enables a seamless integration of multiple functionalities, making it suitable for a wide array of industries, including beverage packaging, cosmetics, and pharmaceuticals.

One of the standout features of Crown 1,3,2 is its robust construction material, which ensures durability and reliability in high-speed production environments. The materials used are resistant to corrosion and wear, making the machinery not only long-lasting but also low maintenance. This robustness translates to increased uptime and lower operational costs over time, appealing to manufacturers looking to enhance their bottom line.

In terms of technology, the Crown 1,3,2 incorporates advanced automation systems that streamline the production process. The integration of smart sensors enables real-time monitoring, providing operators with essential data to optimize performance and reduce waste. This technology allows for predictive maintenance, which further minimizes downtime by addressing potential issues before they develop into significant problems.

Another significant characteristic of the Crown 1,3,2 is its adaptability. The machine can be easily reconfigured for different production runs, accommodating varying crown sizes and shapes. This flexibility ensures that manufacturers can respond quickly to market demands without investing in additional machinery. The user-friendly interface also facilitates easy adjustments and programming, simplifying the training process for new operators.

Energy efficiency is another critical attribute of the Crown 1,3,2. The design emphasizes minimal energy consumption while maintaining high throughput rates. This focus on sustainability aligns with industry trends towards greener production methods, ensuring manufacturers can meet their environmental goals without compromising on productivity.

In summary, Crown 1,3,2 is a revolutionary solution that combines durability, advanced technology, and adaptability. Its innovative design and energy-efficient operations make it a valuable addition to any production line, enabling manufacturers to enhance their productivity while maintaining high-quality standards. Its ability to easily transition between different crown configurations further solidifies its position as a must-have tool for modern manufacturing facilities.