SPR - 20 owneR'S manual SPR - 20 owneR'S manual The S P R - 2 0 F e a t u r e s · Provides an ultra-stable 120 VAC supply from low or high voltage sources · Linear Filtering Technology for unequaled audio / video clarity · Series Multi-Stage Protection provides virtually maintenance-free AC surge suppression · Cool running, noise free technology allows placement in critical listening environments · Detachable surge suppression module for telco and cable / satellite connectors · 20 amp RMS capacity SPR - 20 owneR'S manual Introduction For over 30 years, Furman has pioneered the development of AC power products for the most demanding audio, video, and broadcast professionals. Though the need for stable AC power is nothing new, the SPR-20's technology and its unique implementation is revolutionary. 20, home theaters are supplied with constant, virtually unwavering AC voltage. This assures trouble-free service for any environment suffering from unstable power. The SPR-20 generates virtually no heat, and produces none of the mechanical noise typical in inferior AC voltage regulators. Further, our zero-crossing solid state technology provides virtually unlimited peak current The extreme AC demands encountered in the delivery, avoiding the current limiting found in professional audio/video arena have required AC regulators that convert AC power into DC, technological developments far in excess of typical home theater/audiophile power products. then synthesizing an AC output signal. In studios, live sound, and broadcast facilities, In addition to unstable voltage, today's AC breakdown is unacceptable. Equipment failure lines are plagued with RF and EMI noise. or poor performance is costly. The same is When connecting sensitive equipment to your true of today's home theater. Our solution home's power outlet, AC noise couples into based technology, extensive engineering your system's critical components. This AC expertise, and robust build quality have noise masks low level signals and cripples answered the challenge of today's corrupted power lines, and led to the creation of the SPR- performance. This low level content is critical because it relays the crucial harmonics and 20. ambience in audio, as well as the depth and clarity in video. With Furman's exclusive Linear With today's chaotic demands on many Filtering Technology, televisions, projectors, municipal power facilities, AC voltage is often DVD players, and processors are fed linearlyreduced so that it can be stretched to fulfill filtered AC power. This dramatically reduces excess demand. This creates a substantial negative impact on your system's performance. noise, ensuring consistent peak operation of your critical components regardless of load Power amplifiers and powered sub-woofers conditions or the time of the day. cannot perform to their full potential. Even a relatively modest reduction in AC voltage can Another critical feature is our exclusive obliterate the sonic impact of an otherwise Series Multi-Stage Protection. This virtually superior system. Just as problematic are maintenance-free surge suppression assures excessively high line voltages. Excess voltage the highest level of AC protection possible, can overheat sensitive circuits; lower the life without sacrificing itself when the offending and reliability of projector lamps, and cause surge is severe ­ no damaged equipment, no many circuits to shut down. service calls, no down time. Further, our digital AC input voltage, output voltage, and current With the SPR-20's exclusive Stable Power AC Voltage Regulation Technology, voltage-starved meters allow precise measurements of both the AC line and the current load. These meters are power amplifiers and powered sub-woofers a valuable asset when monitoring systems that perform at their full potential. With the SPR SPR - 20 owneR'S manual are connected to today's potentially poor power grids, or the meters may be dimmed when monitoring is not required. Safety Information - warnings Please read and observe all of the safety and operating instructions before the SPR-20 is operated. Retain these instructions for future reference. When employing the SPR-20, you will notice far clearer, stunningly focused sound and visual images from your system. Video presentation will be crisp and colors true with greater gray · Do not disassemble or modify in any way. and black scale definition, as well as noticeably No user-serviceable parts inside improved depth and clarity. When installed with · Keep away from moisture and avoid the IT-Reference 15 or 20, home theaters will excessive humidity reap the dual benefits of Furman's Stable Power · Do not allow liquids or foreign objects to and Discrete Symmetrical AC Filtering, ensuring enter the unit performance without compromise ­ without peer. The SPR-20 should be serviced by qualified Installation: service personnel when: · The power supply cord or plug has been unpacking frayed or cut. Before unpacking your unit, inspect the carton · Objects have fallen or liquid has spilled for any obvious severe damage to the box and into the unit. internal protective materials. If internal damage · The SPR-20 has been exposed to rain or is likely, contact the carrier who delivered the other moisture. unit before proceeding with unpacking. If, after · The SPR-20 does not appear to operate unpacking, shipping damage is evident, contact normally, or exhibits a marked change the carrier. Save all shipping and packing in performance. materials. You may need them if you should · The SPR-20 has been dropped, or the ever have to return the unit to the factory for enclosure damaged. servicing. The SPR-20 requires that a safety ground be The box should contain the SPR-20 unit, present for proper operation. Any attempt to detachable AC cord, rack mount kit, owner's operate the SPR-20 without a safety ground manual, and warranty registration card. If is considered improper operation and will anything is missing, please contact Furman invalidate the warranty. Customer Service. Fill out and return your warranty registration card. Registration Power Source is recommended because it can be used The power source to which the SPR-20 is to establish whether the unit is within the connected should be adequate for use at 20 warranty period should your original ownership Amps. Though the system may function with a documents be lost, and it assists us in 15 Amp panel circuit breaker, nuisance circuit informing you about upgrades or other vital breaker tripping could result at your service information. panel. If your system includes multi-channel audio power amplifiers that require more than SPR - 20 owneR'S manual modest power demands, a circuit breaker with a rating of at least 20 Amps is essential for optimum performance. If other electrical loads are used on this same AC line, and the continuous load from your equipment is in excess of 10 Amps, we recommend a 30 Amp circuit breaker wired with #10 gauge wire. For installations which must comply with NEC codes, a dedicated 20 Amp circuit is the minimum requirement. If in doubt, consult your local electrician. In rare instances, two SPR20 may be required for the most ambitious 5.1 and 7.1 home theater systems with continuous current draw in excess of 20 Amps (consult your sales professional, or Furman Sound technical assistance). Placement The SPR-20 is manufactured with four rubber feet for placement on any table, cabinet, shelf, or floor. These rubber feet may be easily removed with a standard Philips screw driver when rack mounting adjacent to other components. Because of the SPR-20's internal shielding, placement or proximity to other components is not critical, and the SPR-20 does not produce any appreciable heat under standard use. The SPR-20 may also be rack mounted in a standard 19" rack by attaching the SPR-20 rack ears. These rack ears (contained within the plastic rack kit package) mount flush with the back portion of the SPR-20's front panel. They are attached to the chassis by removing the (2) countersunk screws on each forward-side of the chassis top cover. Each rack ear is installed with (3) panhead Philips screws contained within the SPR20 rack mounting kit. The third screw used for each rack ear is for the center hole, located towards the rear and aids in stabilizing the unit when rack mounted. Connection: aC Cable Routing Once the SPR-20 is placed, its AC cord's female end must be plugged into the male IEC connector located on the lower left hand side of the rear panel (when facing the rear panel). Next the male Edison plug must be connected to an appropriate socket (see current rating recommendation above). Connecting Components to the Digital Video Component aC outlet Banks The SPR-20's four "Digital - Video Component AC Outlets" should be employed for critical video components such as DVD players, projectors, Plasma, or LCD video screens. When employing the SPR-20 for a 2-channel audio system, a pre-amplifier and or CD player would be ideally suited for these outlets. Connecting Components to the linear Filtering Power Banks The SPR-20's eight rear panel, and one front panel, Linear Filtering Power Outlets should be employed for any component not connected to the four "Digital - Video Component AC Outlets." These outlets still posses incredible AC noise filtering to maximize system performance. Soft Start - Continuous use and Break-In Time When power is first applied to the SPR-20, (the front panel breaker- power toggle must be switched to the "on" position) the Soft Start feature is activated. There is an audible "clack" when the SPR-20 is first turned on or off. This sound is produced by the Soft Start circuit's 30 Amp relay engaging or disengaging. There is virtually nothing in the SPR-20's construction, design, or componentry to wear over the life SPR - 20 owneR'S manual time of the product, and there is no power draw from your electric service meter aside from the LED power indicator, and relay circuits. For this reason the SPR-20 may be left with its power engaged permanently at a cost of pennies per month. This is an added benefit, as many audio/videophiles find performance improves significantly when leaving lowpowered components permanently charged (turned on). In fact, this is true of the SPR-20. Though it will function flawlessly right from its shipping carton, the performance of its circuit parts will improve after approximately two weeks of continuous use or "break-in." Protection oK Indicator: Although the Furman SMP circuit assures virtually maintenance free protection from transient voltage spikes and surges, nature has a way of occasionally creating electrical forces that are beyond the capabilities of any Transient Voltage Surge Suppression device to absorb without some degree of damage. In the rare instance that this occurs, the blue LED located in the center of the front panel will dim, even though AC power is present at the unit's outputs. If this happens, some level of protection from voltage surges will remain, but the Furman's clamping voltage rating will be compromised. The unit must be returned to Furman Sound, or an authorized Furman Service center for repair. NOTE: If the mains power is above the high cutoff voltage and has caused the unit to remove power from its outlets, it cannot restore power without the operator manually turning the unit off, then on again. Avoid turning the unit back on, without first checking the source of the problem, and perhaps changing the AC source. Telco ­ Satellite ­ Cable Transient Voltage Surge Suppressors The SPR-20 features transient voltage surge suppression for both standard telephone lines, as well as cable or satellite lines utilizing standard coaxial connectors. As these surge suppressors are in-line, they will require an additional cable to connect from their output to the control device requiring protection. All in-line surge suppressors feature our exclusive ground contamination free technology. This aids in eliminating audio buzzing, and the video hum-bars that can result from typical in-line suppressors. Further, our cable and satellite suppressors are TIVO friendly as well as aC Transient Voltage Surge Suppression and extreme Voltage Shutdown extreme Voltage Shutdown Indicator: This LED is normally off. It monitors AC wiring faults ­ for example, accidental connection to an open neutral from a 208 or 240VAC feed (this is a common occurrence if the 15 Amp outlet source is not a dedicated line, but instead has been wired with a daisy-chained neutral from a homes breaker box). The Series Multi-Stage Protection (SMP) circuit senses voltages that are so high that operation would be impossible and shuts the power down before damage can occur. Upon initially applying power to these units, the Extreme Voltage indicator LED will light if the input voltage is above the extreme voltage cutoff, and power will not be applied t ...