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Balanced Power BMU-2500

In a typical home electrical system, the power supply is "unbalanced," meaning the voltage swings between positive and negative relative to a ground reference. This can be susceptible to noise and interference from various sources within the home's electrical system.

 

A Balanced Mains Unit uses a transformer to split the incoming AC voltage into two symmetrical, out-of-phase voltages, effectively creating a "balanced" power supply. This balanced configuration is designed to cancel out noise using common-mode rejection, resulting in a cleaner power source for sensitive audio and visual equipment.

 

While balanced power can offer significant benefits, it's important to ensure the quality of the balanced power supply itself. Our Balanced Power BMU-2500 utilises a bespoke wound high quality custom toroidal transformer from renowned manufacturers Toroidy.

 

Even in the most severe of situations our BMUs offer a consistency of performance that will have your system performing at it’s very best any time of the day or night. Expect far greater timing capabilities, phase control and increased micro-detail retreival , within a greatly improved and sizeable soundstage conveying exceptional realism and dynamics. Allowing the listener to truly hear what their system is capable of. Improve colour saturation, grain and black levels on connected visual peripherals.

 

Our balanced mains units (BMU) will not in any way damage the musicality of a performance, such as some filters and conditioners can do by damping dynamic freedom and recessing midrange three-dimensionality. In fact, the BMU-2500 with its premium selected parts will improve musicality and naturalness, allowing for increasingly longer listening sessions without fatigue.

 

Construction

The chassis of the BMU-2500 is made from thick anodised aluminium, promoting great resonance control. The chassis’ top panel is heavily dampened to be more inert and resonance free.

 

Inside is a range of high quality and specifically chosen for audio components. We use only the highest grade circuitry to enable the clean flow of incoming mains supply and safety of output, manipulating it to behave in a more controlled manner prior to balancing. We do not compromise flow through conditioning or filtering circuits.

 

Our design champions a short and clean signal path, with all connections to each socket configured in a star formation, allowing for full unimpeded power output to any individual socket. Our star earthing arrangement and ground access on the rear panel via a 5 way 4mm binding post offers users a reference grounding point, which can eradicate detrimental system earthing loop issues promoting an even lower noise floor. Connect phono stages, equipment chassis and speakers which offer additional grounding points such as Tannoys to take advantage of our reference earth.

 

The rear sockets are chosen specifically for their tight fit and ultra-low resistive properties. Each socket has a spring loaded cap which snaps shut and protects the sockets from dust and moisture when not in use. Each socket is mounted with a laser-cut rubber decoupling gasket to minimise vibration.

 

Our choice of a silicone dielectric for the high quality copper voltage cables reduces vibration and static. The silver plated copper, Teflon coated earthing loom goes through a treatment process to remove static prior to install creating a high speed route to earth, reducing system noise even further.

 

As well as having a very inert chassis, each Balanced Power BMU-2500 comes with a set of specifically engineered equipment feet. These feet comprise of two CNC’d discs of a specially formulated Aluminium Polymer Compound (APC) which deals with micro-vibrations far more effectively than its aluminium counterpart. Sandwiched between these two APC discs are ceramic ball bearings - an excellent medium to convert vibrations into heat. The combination of materials is quite special and the effects very audible.

 

DC Blocking

The BMU-2500 incorporates a sophisticated DC Blocking circuit.

DC Blocking allows transformers to work at their optimal performance. Eliminating hum and allowing them to “breath” for want of a better term, so that they can effortlessly run at their full power potential without being choked by harmful DC. Not only will this circuit enhance the background quietness of your listening sessions - it will also, in conjunction with the specially designed transformer isolate your equipment from the mains electrical ring in your home. Fridge/freezer pops and clicks, humming and other pink/white/brown noise from appliances, switch-mode power supplies powering practically everything in your home and communal noises from power grid capacity loads at peak usage times will be eradicated, allowing for a far cleaner and more consistent sound regardless of the time of day or night.

 

Further Lowering of the Noise Floor through Attached Power Cables

A balanced power supply reduces radiated fields from power cables by using two out-of-phase voltages, which cause the electric fields to largely cancel each other out. This principle is similar to how twisted pair cables reduce noise, but in this case, it prevents the cables from radiating noise in the first place.

 

Any reactive currents (common-mode currents) flowing in the two wires will also be inversely phased. At the central earth point, these equal and opposite currents will cancel each other out, rather than being superimposed on the earth.

 

Your power cables will work at their absolute best connected to one of our BMUs. Any naturally generated noise will be mitigated. Resulting in further improvements in resolution, three-dimensionality and bass control, with the quietest of backgrounds allowing you to appreciate more atmosphere and naunces, creating more intamacy, drawing you further into the music. In visual terms, less grain and noise will solidify the image and reinforce the perception of depth.

 

Safety In Mind

Protecting you and your equipment is of paramount importance to us, yet choosing safety features which are beneficial to overall sound quality can be a challenge. The use of MCB type trip switches, such as those found in consumer units and other balanced mains units are certainly not specified for audio usage. Multiple fuse rails is another option, however if one rail blows there is still live voltage on the other to consider. Tthe power cable itself would still carry half of the voltage to the connected equipment when being fed from a BMU, which in extreme cases could still result in deadly harm.

Our safety protection covers every wire and piece of equipment attached to the BMU-2500. Meaning if there is a fault on any part of the outputted electrical signal the entire array of balanced outputs will shut down instantaneously. We protect our balanced outputs with an audio specific trip which has gold plated PCB tracks and gold plated connections along with high-grade magnesium relays to ensure the integrity of the system and signal output.

 

Extended Component Lifespan

In addition to the sonic and visual benefits of our BMUs, another fantastic reason to consider adding one to your setup is it's ability to prolong the lifespan of your systems components.

With a more stable 180° opposite phase configured voltage output the BMU will reduce heat on circuit board mounted components. Also lowering the noise and DC off-setting; your expensive and delicate components will benefit from an extended lifespan, requiring less frequent servicing schedules or component failures.

 

  • Features

    • 2500 watts of power with an oversized transformer core to give better dynamic peaks, plenty enough for most systems with high powered amplifiers
    • Shortest signal path
    • Custom built High quality soft start circuitry with inrush protection to protect equipment
    • Custom built High quality DC blocking circuitry installed to prevent humming/noisy mains and stopping DC leakage from reaching delicate electronics
    • Audio grade dual trip output protection using gold connection points, gold PCB tracks and magnesium relays
    • Ultra high grade audiophile transformer
    • Extremely high grade audiophile internal wiring
    • Ultra high speed star-earthing system for excellent noise suppression into GHz levels
    • Additional earthing post for grounding of other equipment and cables
    • All wiring harnesses fully starred
    • Fully earthed chassis
    • Transformer is mounted using sorbothane rather than cheaper rubbers such as neoprene which is commonly found in most circumstances and uses an anti-vibration central core fixing point
    • Low resistance, high impact, dust and moisture free output sockets
    • High quality gold IEC input
    • Factor One custom isolation feet with ceramic bearings
    • Heavy duty, bespoke, custom chassis
    • High quality parts used throughout

    Dimensions: 430 (w) x 320 (d) x 115mm (h)

    Weight: 22kgs/48.5lbs

  • Warranty

    We offer a limited lifetime warranty on Balanced Power power supplies. It’s quite simple, as long as it hasn’t been damaged through malicious or accidental events we’ll repair it. Any other required work will be charged at cost plus labour. We are very reasonable and will take care of you and your purchase for the life of the unit.

  • Return Policy

    We offer a 30 day Money Back Guarantee - just ensure the unit is returned to us in an as new condition and we will refund your original purchase price.

  • Custom Builds

    We offer customisable builds to our clients. Call or Email us to discuss your requirements.

    Custom built Balanced Power Supplies are not subject to our usual returns policy yet still have our Lifetime Warranty.

£1,995.00Price
Quantity
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