Hafler PH34
Phono SUT with 32 dB Gain


Our Price: $999.99
List Price: $1,200.00
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Hafler PH34
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The Hafler PH34 is a passive device that employs two ultra high performance Jensen transformers to boost the low-level signal produced by a moving coil cartridge without any amplification or the associated noise that they produce.  Jensen wrote the book on transformer technology and for over 40 years has gained the accolades of being the world’s most respected and revered audio transformer manufacturer.

The design begins with a 14 gauge steel casing to shield the low level signals from external magnetic fields and RF contamination. Gold-plated RCA input and output connector pairs are employed that will not tarnish over ti me, thus opti mizing signal fl ow. Inside, each Jensen transformer is double shielded with heat treaded (annealed) nickel composite cans and supplemented with internal Faraday shielding to deliver over 145 dB of hum rejection at 60 Hz. These are handwired to the connectors in a twisted pair configuration. With less than 0.05% distortion, virtually zero phase shift  and a frequency response that spans from 10 Hz to over 100 kHz, you can rest assured that the signal transfer will be pure and uncolored.
Designed to boost the signal of low impedance moving coil cartridges (5 Ohm or less), the PH34 employs a Jensen JT-34K-DX transformer with a 1:37 turns-ratio that adds 31 dB of noise-free gain. This is ideally suited for Ortofon or similar cartridges that are often selected by the most demanding audiophiles. Since the Hafler PH34 is designed for the purist, there are no controls. One merely connects the turntable to the PH34, the output signal to a standard RIAA phono input on the receiver or preamp and the Halfer PH34 will
quietly do the work without adding noise, distortion or artifact.

Hafler PH34 Features:

  • Passive SUT boosts the signal without introducing noise
  • Hand wired Jensen transformer for unmatched performance
  • Ruler fl at frequency response from 10 Hz to 100 kHz
  • Produces 31 dB of gain for low impedance (5 Ohm or less) styluses

Hafler PH34 Specifications:

  • Circuit: Passive transformer based design
  • Inputs: Gold plated RCA
  • Output: Gold plated RCA
  • Impedance: Optimized for 3-5 Ohms stylus
  • Gain: 31 dB
  • Size (W x D x H): 4.5" x 6" x 1.75" (114 x 152 x 44.5mm)
  • Power: Not required

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