Mono-block Amplifier Power Supplies
With our mono-block amplifiers there is a choice of 2 separate power supplies. Both employ modern SMPS technology to deliver extremely regulated and noise-free power, compared to traditional mains transformer based supplies.When used in conjunction with the LM3875 at specific voltages, the sound of the amplifier literally blossoms, offering great intimacy in its delivery, airiness in its separation of instruments, palpable sonic images set against a deep black sound-stage.
- Note that both SMPS modules are switchable and can operate in the range 110 - 130 VAC or 220 - 240 VAC, for worldwide use.
ML1301-1 Mono SMPS
This uses a simple SMPS module that is housed in a sleek aluminum case. All internal wiring is implemented using Teflon™ insulated military specification silver-coated copper wiring. A 3 stage mains isolation circuit is employed after the mains switch which prevents any unwanted switching noise from being conducted back into the electricity supply. Connection to the mono-block amplifiers is via two Litz-wired umbilical power cords - one per channel - using military specification cable and state-of-the-art gas-tight power connections. This power supply module can drive the Bosanwhas at 18 WPC and is suitable for those systems using full range driver or high-sensitivity ( >= 93 dB) speaker systems.
ML1301-2 Dual SMPS
Based on the same design as our Mono SMPS, the Dual SMPS uses a purpose-built audio SMPS, which we collaborated on. This SMPS is capable of driving the Bosangwhas to 48WPC, which is close the chip amps full output rating. Prior to the introduction of the Dual, the magic of the Bosangwhas were only available to those of our customers with high-sensitivity speakers (>=93 dB). This sound is now available to customers with standard-sensitivity speakers (88-92 dB), however because of the levels of current the Dual is capable of delivering, we do not recommend using the Dual with 4 Ohm speakers. Speakers should ideally present an 8 Ohm load to the amplifier.
- The Dual can be used by both groups of customers, and we recommend its use, as it is our reference power supply.