Thursday, June 4, 2026
Home Review Puritan PSM 156 power conditioner

Review Puritan PSM 156 power conditioner

13

Pros

  • Nice compact design
  • Definitely filters out junk
  • Low and high-current

Cons

  • Very mixed results...
  • Both measurement-wise,
  • ... as well as sound-wise.

Price: € 1740

Build quality
Usability
Sound
Price
Puritan PSM 156

The test setup

We tested the Puritan PSM 156 in our reference system. Like the Yeti Standard filter, we mainly used the Sonnet Pasithea, as the Pass Labs X150.8 is too heavy and the reclocker / ref-clock are not useful, as they need to stabilize.

The test setup

Type test
Single Test
Accessory type
Energy filter / regenerator
Suitable for
  • Sources (Low current)
  • Amplifiers (High current)
Number of connections
6
Maximum load
  • 3450 watt
  • 15 Ampere
Dimensions
  • Width: 43 cm
  • Depth: 23 cm
  • Height: 11 cm
Production country
UK

13 COMMENTS

  1. Slightly off topic, but has anyone had any burning in experience? After nearly 17 months my listening room is finally done. All my new products such as Furutech Rhodium forks, Rhodium plugs and Synergistic research are ca 60 hours on burn in. Everything sound shit, thin, and very bright. Also my system had been switched of for 17 months. I’ve heard the Rhodium burn in period can be very tough psychologically.

  2. Was this a new unit or was it a show model/already used unit? I ask this because this puritan does need a lot of hours for it to be broken into. If you test a new unit vs a already used one you can clearly hear major changes on both. By this review it does look like this puritan can produce very mixed results depending on the setup. On my case, i’ve prefered the puritan to conditioners up to 6K, including two much more expensive isotek models.

  3. Interesting review/measurements. I’ve had very good experiences with Puritan conditioners across the board. I’ve found they improve with an outboard ground—I use their CityGround since I live in a condo. The ground is inexpensive enough that I consider it a mandatory part of the system. It makes a difference—it would be interesting for you to use their ground and see if it resolves your issues.