Power ConditionersThe poor state of the U.S. power grid and the delicate nature of modern digital AV gear are opposing trends that have created a big market for power conditioning equipment. 1/27/2012 7:18 AM Eastern
Jan 27, 2012 12:18 PM, By Bennett Liles
The poor state of the U.S. power grid and the delicate nature of modern digital AV gear are opposing trends that have created a big market for power conditioning equipment. The term “power conditioning” normally includes hardware that provides voltage regulation, EMI/RFI filtering, and surge suppression, but we have broadened the field from single rack units offering any two of these functions to very sophisticated gear providing all three and UPS capability. Regardless of the specific style or configuration, the mission of these products is increasingly vital.
The S15BLK from APC combines EMI/RFI filtering with surge protection and voltage regulation through a variety of connections on the rear panel including 12 AC outlets. The internal battery offers UPS functionality while surge protection is provided for coax, Ethernet, telephone, and power connections. The unit includes a DC trigger port along with a push-to-reset circuit breaker. Power up/down sequencing can be programmed from zero to 10 seconds. The front panel includes indicators for battery condition, delayed outlet activation, filtering, automatic voltage regulation activity, overload warning, estimated battery run time, and input/output voltage levels. A USB port allows the unit to communicate with the included PowerChute Personal Edition software.
For voltage regulation, line filtering, and surge protection in a 1RU design, Art Pro Audio configured the PR8 PRO to maintain 117V ±5V on the outputs under conditions in which the incoming voltage may vary from 97V to 130V. A front-panel LED indicates output voltage in the design range and a fast-acting breaker protects the entire unit. Using an eight-tap toroidal autoformer, it minimizes magnetic stray field leakage and compares the incoming voltage to an internal reference, switching taps on the transformer during the zero voltage part of the cycle. The PR8 PRO uses common mode and differential mode topologies in the filter design.
For both fixed and temporary setups with light requirements, Atlas Sound offers the ECM-20SH single-housing power conditioner and AC spike suppressor. With RFI/EMI filtering, the device has two AC outputs, 20-amp fuse protection, a manual bypass switch, and top-mounted LEDs to indicate incoming AC, active status, and AC fault. The unit can be used in standalone configuration or in conjunction with the Atlas Sound EDS-6RM or the ECS-3 up to 1000ft. away, and it can automatically shut down AC outlets when the incoming voltage goes above 132VAC or below 102VAC. It includes EMI/RFI filtering to reduce noise from switching power supplies and electric motors.
The Belkin PureAV Home Theater Power Console PF30 works to protect various home entertainment components with its Phase 3 PureFilter Circuitry, and it includes a HiCurrent outlet for power amplifiers. The design provides eight AC outlets and one pair of gold-plated coaxial connections for cable TV and other RF or video lines. It offers 3245 joules of surge protection and a 165,000A maximum spike current rating. The unit is UL1449-rated, and it includes an 8ft. SD500 HiCurrent power cord with a right-angle plug.
The BC6000 Recording Reference Standard AC power line filter and conditioner from Blue Circle Audio includes 157 internal power filters covering a frequency range from 120Hz to more than 50GHz along with double wire runs to three hospital-grade duplex AC outlets. It also features a standard 20A Neutrik PowerCon twist connector and BC62 premium power cord. For rugged operation, the entire filter network is encased in silicone. Surge protection is included, and there are optional black or rackmount faceplates available, along with a stainless steel cover. Maximum power handling is 2400W, and the unit weighs in at 9.5lbs.
The Raxxess NAPDH11L surge arrestor from Chief Manufacturing is a 1RU with 10 NEMA-15R AC outlets on the back panel and one on the front. The device provides 30dB of EMI/RFI filtration from 100kHz to 1Mhz, a rating of 2400 joules and >1 nanosecond response time. The power switch is also a resettable circuit breaker, and the front-panel includes pullout lights with a dimmer. Also on the front are LEDs to indicate power on, protected status, and ground. The unit comes in a black brushed anodized aluminum finish.
Jan 27, 2012 12:18 PM, By Bennett Liles
For powering professional audio devices in environments such as digital recording studios, Equi=Tech markets the Son of Q shelf or rackmounted balanced power system. This line is a more recent variant of the company’s flagship Model Q and consists of the original 1500W 15A version, the 1000W Son of Q Jr. and the 20A 2000W Son of Q Sr. The unit’s front panel features an input power switch and an output power switch, each with its own LED power indicator. Models in the Son of Q line are designed for small-to-medium-sized AV systems and use bifilar wound isolation transformers along with magnetic and faraday shielding.
The rackmounted ETA-S15L AC power conditioner and distribution unit from ETA Systems provides nine AC outlets, eight of which are switched on the rear panel while one is unswitched on the front. Also featured are RFI and EMI filtering. The unit can suppress voltage spikes up to 6000V. There is a 15A circuit breaker on the front panel in addition to the power switch, pullout light, power LED, AC fault LED, and two position light intensity switch. The rear panel offers an XLR connection for the optional Atlas Power AP-GNL18 light with accompanying switch. The unit is rated for a maximum surge current of 6500A and a maximum spike clamp response time of 1 nanosecond.
For home theater and professional audio and video systems, the EP-WSC-15R wide spectrum multistage conditioner from Exact Power uses a series of filters to reject common mode and differential mode AC noise and RFI from incoming power. The unit incorporates custom-wound, heavy duty toroidal inductors and five-stage, high-voltage surge protection along with cable TV and phone line transient protection on three pair of rear-panel coax connections. A twisted-pair in/out connection for surge protection on network and phone lines also is included. The chassis weighs 40lbs. and fits into a 2RU rack space.
Furman Sound designed the PL-PRO DMC power conditioner to provide the maximum function and information in the minimum space. The 1RU rack module features a large digital volt meter/ammeter with discrete dimmer button and LED voltage range warning. The front panel also has dual pullout lights with a dimmer knob and a USB charger connection. The chassis offers eight rear-panel AC outlets and one on the front. The rear panel also has a BNC power connection to accommodate a variety of gooseneck lamps, and three of the rear AC outlets are spaced for wall wart AC transformers.
The RX10-SCS Filtercord from Juice Goose fits behind HD displays to provide voltage surge protection and high-frequency common-mode and normal-mode noise filtration for the best HD picture quality and display protection. The unit’s hybrid filter design protects equipment from surges up to 6000V at 3000 amps on hot, neutral, and ground. If it is connected to an improperly wired outlet, no power will be applied to the load and a wiring fault will be indicated by a red light.
For protection of sensitive electronic equipment from external or internal transient activity LeGrand markets the Wiremold Sentrex ZoneDefender PRO ZPA and ZPB series panel protection devices with EMI/RFI filtering, remote indication contacts, and an audible alarm. With up to 160kA surge protection per phase, the units provide all mode protection housed in a NEMA 1-, 2-, 12-, 13-rated metal enclosure and include short circuit and thermal fusing.
Another entry in the 1RU rackmounted category, the ACSPR-RPC1-1509K from Lowell Manufacturing adds remote control to surge and over/under voltage protection and RFI/EMI filtering. The unit can be operated with a remote switch closure and through a trigger voltage provided by a separate control or fire alarm system. The front panel features a series of LEDs that indicate AC line voltage from levels less than 100VAC to more than 140VAC, and there are shutdown and surge protection status LEDs as well. A power status indicator and 15-amp circuit breaker are included on the front, and the unit may be ordered with either rocker or key-switch power activation. There are eight outlets on the back and one on the front panel.
Jan 27, 2012 12:18 PM, By Bennett Liles
The PD-915 series of rackmount power distribution units from Middle Atlantic Products provides eight rear-panel AC outlets and one front outlet. Either two or six of the rear AC outlets may be switched by remote contact closure, depending on the model. The PD-915R-X can use an existing control system or contact closures for AC control, and it offers two-stage surge suppression with notification. The contact closure configuration may be set for maintained or momentary, normally open or closed. The front panel includes LED power indicators and an illuminated power switch.
For protection and smooth operation of high-end home theater AV systems, Monster Cable markets the Monster Signature Series AVS 2000 Voltage Stabilizer with six rear-panel AC outlets, four of which are switched. The outlets may be programmed to be switched on and off in a sequence according the delay times that have been set on the rear-panel switches. The unit stabilizes voltage fluctuations and has a 15-amp circuit breaker. On the front panel are digital input/output voltage meter, voltage correction meter, current usage meter, and indicators for ground OK, surge protection, line and neutral OK, normal/abnormal voltage, and switched outlet ON; there is a remote DC control terminal.
The CPD-1006L conditioned power distribution unit from Nady Systems is a 1RU module for powering a stack of rackmounted mobile or installed gear. There are eight rear-mounted RFI/EMI filtered AC outlets provided along with two unfiltered outlets on the front panel. The outlets are turned on and off in a six-step delay sequence, and the front panel features a digital voltage meter. The unit includes a 15-amp circuit breaker on the front and a retractable rotating six-LED lamp with a high/off/low switch. Also on the front display are six LEDs to indicate the power on/off sequence.
One of the many power devices offered by Panamax for the home theater market is the M5400-PM with line filtration and voltage regulation. On the front panel the unit has dual digital meters for volts in and out along with an indicator for power sequencing of the five rear-mounted AC outlet banks. These include two high current outlets. Other features include a USB charging port, a gaming LAN port, and a 12V trigger port for external equipment to use in remotely activating the switched outlets. The unit senses incoming voltage levels; when these go outside the predetermined safe envelope, the unit shuts off power to connected devices until voltage returns to the normal range.
The PPC 9000 power conditioner from Phonic is a 1RU model with four pairs of switched rear-mounted AC outlets and one unswitched outlet on the front. Also on the front panel is a 20-segment voltage LED meter and two swiveling light fixtures with a dimmer switch. The unit provides EMI/RFI filtering and triple-mode Varistor surge and spike protection. The PPC 9000 has a maximum surge current rating of 6500 amps and a response time of 1 nanosecond.
For high-end home theater systems, the Perfect Wave PowerPlant 10 AC regenerator, sometime more simply known as the P10, is the solution for up to 1500VA of regulated power. PS Audio designed this model to be stackable or mounted on a special rackmounting shelf (RSH4A3R) available from the company. The chasses includes five banks of dual AC outlets, three coaxial in/outs for protection of cable TV and other video devices along with an SD card port, Ethernet port, and a DC trigger port for external device activation of the outlets. The PC10 accepts local power, converts it to DC and regenerates regulated AC power to its outputs.
The iControl IP-addressable power conditioning management system from SurgeX allows Web-enabled power control and monitoring through custom power sequencing and automatic email notification. In a 1RU space, the iControl SX-1115iP includes eight individually controllable AC outlets and the internal web interface. The system provides common-mode and normal-mode impedance-tolerant EMI/RFI filtering, SureX ICE (Inrush Current Elimination), and COUVS (Catastrophic Over/Under Voltage Shutdown). It also has a self-test with a visual indicator and is controllable through Ethernet and RS-232.
Torus Power designed the CS 20 AVR to deliver voltage regulation over an input range of 85VAC to 135VAC and surge suppression to 6000V, 3000 amps with a clamping voltage of 2V above peak nominal voltage. The unit provides five pairs of AC outlets on the rear panel and can be remote controlled through Ethernet on its internal web interface and with RS-232 as well as on two 112VDC trigger ports. The front panel displays input and output voltage. The CS 20 AVR attenuates noise from 2kHz to 1Mhz and provides isolation with toroidal transformers.
The HTR22-3U pure sine wave power management system from Tripp Lite provides voltage regulation with an input range from 65 to 138VAC while converting the incoming AC to DC and reconverts the output to regulated and filtered AC. It adds a UPS with zero transfer time to battery. The unit has nine outlets in two switchable load banks that can be individually controlled via software interface to reboot selected equipment on demand or automatically shed less-significant loads to extend battery time. It is remote controllable on RS-232 and with the addition of the SNMPWEBCARD into the built-in accessory slot, Ethernet control and monitoring is installed. Drivers are available for Crestron, AMX, and Savant control systems.