The PSM02 series is based on the basic model PSM01 series, with the development filter of the flagship linear power supply LPS01 cut out and made into a single module.

See design distribution for design objectives

Noise cleaner + bulk capacitor and power smoothing module, which is only for switching/transformer/USB PD GaN element AC adapters or linear power supplies, and is only effective in terms of reducing noise in upstream adapters.
This is a higher-end model of the PSM01 that pursues reproduction of the original sound by pursuing further reproducibility of sound through excessive responsiveness (transient/fast response) and noise reduction, with the same configuration as the filter part of the LPS01 series development type.

As with the PSM01-F2N, the addition of eight low ESR polymeric solid capacitors Nichicon PLG, Nichicon FPCAP RNL or Panasonic OS-CON, based on Nichicon UKA 6800uF, provides further noise reduction, but at the expense of using more high-cost components. The price has increased, but the performance is well worth the increase.

Common specifications for the BRi-PSM02 series

• Reduces high-frequency noise from 100 KHz to 1 GHz by using the Murata EMIFIL BNX016-01 EMI filter for noise suppression.
  (The wall of high frequencies felt with the Petit Susie and ATH-W5000 are not felt with this product, making it clear all the way to the top)
• Nichicon audio aluminium electrolytic capacitors and WIMA film capacitors are used to reduce noise in the audible frequency range to 200 KHz.
• Improved noise reduction performance and over-response (transient/fast response) compared to the PSM01 series by enabling mounting of up to five aluminium electrolytic capacitors and eight solid polymer capacitors on a single board.
• DC input Singatron DC connector (OD 5.5 mm / ID 2.1 mm) for stable connection.
• DC output DC plug (OD 5.5 mm/ID 2.1 mm) or terminal block
  (From 21/4/2024) Use Oyaide 102SSC 3398-18 0.75sq cable for the DC cable and Marushin Radio MP121CF DC plug for high current measures and enhanced sound quality in the whole area (approx. 15 cm).
• Original design with noise suppression 2-layer board
  Board size 98 mm X 45 mm with 10 mm spacer
• SR-4N from Wako Technical, using silver-bearing solder for audio.
• By limiting direct distribution, the line-up includes three types and six models: the Nichicon PLG specification up to 16 V withstand voltage, the Nichicon FPCAP RNL specification up to 25 V withstand voltage and the Panasonic OS-CON SEPF specification.
• Nichicon PLG specification PSM02-xN, with PLG volume enhancement, for speaker or car audio applications.
• Panasonic OS-CON SEPF specification PSM02-xP differs from PLG in that it has flat characteristics without volume enhancement and is intended for audio interfaces.
• Nichicon FPCAP RNL specification PSM02-xF is a balanced type between PSM02-xN and PSM02-xP, a versatile type with high frequencies that do not pierce the ear.

Basically, the price is almost only the cost of the parts and shipping, as the products are made for distribution and hobby.
We try to keep costs down by soldering all the DC cables, but please note that we cannot offer the same low prices as Petit Susie, which is mass-produced in China and uses very cheap generic products, due to the cost of designing and manufacturing the original boards, the cost of top audio grade components, EMIFIL, and so on. Petit Susie.