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Hafler PH34

Phono Step-Up Transformer for 5-Ohm Moving Coil Cartridges
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Regular Price: $1,200.00

Special Price $999.99


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Hafler PH34 Details

Hafler PH34 Passive Phono Step-Up Transformer for Moving Coil Cartridges: Step up to ultimate performance

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

The Hafler PH34 Phono Step-Up Transformer 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 time, thus optimizing 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 hand wired 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 Ω or less), the PH34 employs a Jensen JT-34K-DX transformer with a 1:37 turns-rati o that adds 31 dB of noise-free gain. This is ideally suited for Ortofon or similar cartridges that are oft en 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.

Additional Information

Name Hafler PH34
Sub Title Phono Step-Up Transformer for 5-Ohm Moving Coil Cartridges
Manufacturer Hafler
Manufacturer Part# PH34
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  • Circuit: Passive transformer based design
  • Inputs: Gold plated RCA
  • Output: Gold plated RCA
  • Impedance: Optimized for 5 Ω or less
  • Gain: 31 dB
  • Size: 4.5” (w) x 6” (d) x 1.75” (h) (114 x 152 x 44.5mm)
  • Power: Not required
  • Warranty: 3 year transferable