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Furman P-2400 IT Symmentrically Balanced Power Conditioner
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Designed for the most critical, ultra-low noise installations, the Furman P-2400 IT is a symmetrically balanced power conditioner, providing unparall...Click To Read More About This Product
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Virtually eliminates common mode noise for low noise floor with excellent surge protection too.
Designed for the most critical, ultra-low noise installations, the Furman P-2400 IT is a symmetrically balanced power conditioner, providing unparalleled AC noise reduction and 100% isolation from the power grid for the lowest noise floor possible. The Furman P-2400 IT power conditioner features over 80dB of common-mode and over 50dB of differential-mode noise reduction for recording, mastering, and broadcast studios, or anywhere noise-free performance is critical. With 100% isolation from line, neutral, and ground, the Furman power conditioner is also ideal for breaking AC ground loops without rewiring or hiring an electrician.
The Furman P-2400 IT power conditioner features a specially wound and shielded toroidal balanced isolation transformer specifically designed to reduce hum pickup by sensitive equipment when ultra-low-noise is a must. Additionally, Furman's Series Multi-Stage Protection (SMP) features their Extreme Voltage Shutdown (EVS) circuits, and exclusive Linear Filtering Technology (LiFT) that combine to ensure you get what you've grown to expect from Furman”audio equipment with uncompromised protection and purification.
Symmetrically Balanced Power
For the most critical, low-noise applications, Furman's Symmetrically Balanced Power provides an invisible noise floor, while completely breaking ground loops without dismantling equipment or rewiring. This Furman power conditioner's noise reduction is extraordinarily efficient and linear across a huge frequency range. The transformer has completely reworked your incoming AC and the result is perfectly clean power devoid of the masking effects of AC noise with 100% isolation from line, neutral, and ground.
Furman's SMP and EVS circuitry safeguards equipment from transient voltage events (such as surges and spikes), as well as sustained over-voltage conditions (commonly caused by wiring faults), for complete and comprehensive protection of sensitive equipment.
Innovative Convenience and Monitoring Features
The Furman P-2400 IT power conditioner's front panel LED window displays incoming voltage or output current, with "Protection OK," "Extreme Voltage," and color-coded "Voltage Range" indicators for comprehensive power monitoring. The Furman power conditioner's front-panel USB outlet charges most personal media devices and cell phones right at your equipment rack.
Symmetrically balanced power virtually eliminates common mode noise for the lowest noise floor possible
Furman's exclusive SMP technology provides the highest level of surge & spike protection available
LiFT offers AC power filtering to ensure clean power for unequaled audio & video clarity
Advanced EVS circuitry detects dangerous voltage irregularities and safely powers down itself and connected equipment in unsafe conditions
Protection OK, Extreme Voltage, and color-coded voltage range indicators provide information on power quality and operational status of unit
Large LED voltmeter/ammeter displays incoming voltage and output current draw
Isolated outlet banks minimize inter-component interference and noise contamination
Front panel USB convenience outlets allows you to charge most media devices or power a USB lamp
20 amp rating featuring a high inrush magnetic circuit breaker for added protection
14 total outlets (twelve rear panel outlets and two front panel convenience outlet)
Line Cord: 12AWG X 3, 10FT long, NEMA 5-20 plug
Operating Voltage: 90 to 139 VAC, 60 Hz
Over-Voltage Shutdown: 140 VAC Nominal
Spike Protection Mode: Line to neutral, zero ground leakage
Spike Clamping Voltage: 188 VAC peak @ 3,000 Amps
Response Time: 1 nanosecond
Maximum Surge Current: 6,500 Amps
Noise Attenuation: Transverse Mode Noise:
10dB @ 10kHz, 40dB @ 100kHz, 50dB @ 500kHz
Common Mode Noise: 80dB @ 20kHz, 40dB @ 20kHz to 1MHz
Dimensions: 19"W x 14"D x 5.25"H (483mm x 356mm x 133mm)
Weight: 90lb. (41kg.)
Power Consumption: 26 watts (for display and control circuits)
Receptacles: 10 Ultra-low resistance isolated-ground hubbell outlets, 2 GFCI front panel outlets
Reviewed by 1 customer
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Comments about Furman P-2400 IT Symmentrically Balanced Power Conditioner:
I have only been using this device for a couple of weeks and haven't yet been on location with it. So I haven't really put it through its paces yet. It did solve the hum problem I had, which is what prompted me to buy it at this time, but that particular problem could likely be solved without resorting to this expensive unit. I got this unit because of issues that can arise on location, including extreme situations such as running off a generator (which is the case where I would also want voltage regulation). But I can say that my setup is now absolutely silent, except for the music I create with it.
There is no voltage regulation. It was not advertised as having voltage regulation (just out-of-range shut-off) but it seems absolutely bone-headed to leave it out. I can now purchase, for example, a Furman P-2400 AR to get voltage regulation, and put it between the mains and the P-2400 IT, but the redundancy and waste involved is outlandish. Basically, the AR has everything in it that the IT has EXCEPT "half a transformer" and PLUS a small amount of extra circuitry to regulate the voltage (and associated taps on the autotransformer). So adding it will tie up 3 more rack spaces (one for ventilation) and make my rack case even heavier than it now is, plus cost me quite a bit more money.
At this price point, that functionality could easily have been included in the IT within the existing case size (3 RU) and with an insignificant increase in weight. All one needs is the taps on the transformer (on the primary side, so as not to require double sets of taps to keep the voltage balanced) plus circuitry to auto-set the taps to keep the voltage stable. Had I been the designer, I definitely would have designed it that way. (I am an electrical engineer with an Sc.D. from MIT.)
Another bone-headed feature involves the extra rack ears for attachment to rear rails. It's great that Furman included this essential feature, given the weight of this device. The problem is that the screws that retain the sliding rear ears require a screwdriver to tighten them. It is extremely difficult if not impossible to install the unit in a rack unless the rear ears are loose enough to slide. (Ok, maybe you could do it if you removed and re-attached the rear rails...) Once installed, I could not tighten the screws even with an offset screwdriver. There just isn't enough space in the rack. (And my rack case has generous side clearance.) I bought replacement screws with hex heads so I could tighten them with a wrench.
The NEMA 20P plug on the unit can be a problem. This may be due to electrical code compliance issues, as this device is a special case that is a bit awkward for the US NEC (National Electrical Code) language. It should be OK to use this device on a 15A circuit, for the same reason that it is OK to use a 20A extension cord on a 15A circuit. The actual load is determined by what you plug into it, rather than by the unit itself. Since a NEMA 20P plug can't be connected to a NEMA 15S socket, this could be a problem when using the device on location. Furman sells a short adaptor cord that allows you to connect the unit to a 15A circuit, or you can make one up yourself, as I did. Note that you CAN connect a NEMA 15P to a 20-amp circuit. Also, this unit would be NEC compliant if it had a NEMA 15P plug AND all the sockets on it were NEMA 15S, which would probably be just fine for anyone who ever uses this device.
Other than these complaints, all the other features of the P-2400 IT are as advertized and well implemented.
On the positive side, I should mention that all the outlets on this device are protected by GFCI, which is very important if you run with an isolated ground. The manual does not adequately cover the technical considerations and hazards associated with ground lifting. So be sure you know exactly what you are doing whenever you use the ground lift.
Not much to say here. The build quality looks absolutely excellent to me.
I think this device is seriously over-priced.