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Hafler PH60 Phono preamp for MC - moving coil cartridge
Hafler PH60 Phono preamp for MC - moving coil cartridge


 
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Our Price: $499.99


Availability:: Usually Ships in 2 to 3 Business Days
Product Code: 130PS-HAFPH60
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Description
 
The Hafler PH60 is a high performance phono stage for moving coil cartridges that combines a class-A transformerless head-amp design with a well defined RIAA curve to preserve and transmit the original program material with minimal coloration. Due to the extremely low signal level produced by moving coils, particular attention has been applied to reducing noise while retaining the purity of the signal path to address the most demanding audiophiles. The design begins with a 14 gauge steel casing to shield the low level signals from external magnetic fields and RF contamination. Gold-plated input and output RCA connector pairs are employed that will not tarnish over time, thus optimizing signal flow. Inside, the solid-state circuit and military grade PC board have been optimized by carefully positioning parts for minimal self-noise and cross-talk and then supplemented with a ground plane to reduce susceptibility to RF. An external supply further reduces noise by removing the power transformer from inside the casing. Inside, a series of jumpers enable the user to match the impedance of the cartridge with the PH60 to maximize the frequency response and reduce distortion. These are set during hookup and can be changed later should one decide to change to a new moving coil cartridge. Front panel controls include a power on-off switch and a low-cut filter that may be inserted into the signal path when needed. This enables the user to reduce low frequencies that can cause resonance and feedback when playing music at higher levels. This helps eliminate both airborne and solidly coupled transmission of vibrations that can enter the stylus and cause feedback, rumble and distortion. Compact and ˜plug and play easy to use, the PH60 follows Hafler s 50 year tradition of building the very finest audio products for the most demanding high fidelity enthusiasts.

MC Loading
The PH60 comes factory set at 100Ω as this will accommodate about 90% of the cartridges used today. Your phono cartridge manufacturer will suggest the appropriate load for its cartridge for optimal performance “ which should be found in the cartridge s manual or web site. If your cartridge requires a different load, simply take the cover off the PH60 and carefully pull the jumper from the 100Ω position and push it back on to the 50Ω or 25Ω position to suit. Setting the load correctly will assure the most accurate frequency response.
Some cartridge manufacturers may suggest a unique (specific) load to optimize their cartridge s performance. To address this, a fourth ˜custom position in the jumper section of the PCB allows a resistor to be soldered in to suit. Simply have your dealer contact the Hafler service department with the required load and we will calculate the proper resistor. Your dealer s service department can then insert the part at a nominal cost to accommodate your needs.
FEATURES
  • Dial In
    Power
    Turns on the PH60
    Low Cut
    High pass filter eliminates rumble from excessive bass


    Connect
    RCA Inputs
    Connections from the source to the PH60
    RCA Outputs
    Output to power amp
    Ground
    Ground spade connector
    Power
    15V External power supply included


    Inside
    100% Discrete Electronics
    Instead of today’s popular surface mount ‘cell phone’ parts, the HA15 uses full sized resistors and capacitors that are hand inserted to deliver the very best audio quality.
    Individual transistors
    Instead of typical mass-market chips (integrated circuits) individual transistors are used at each gain stage to minimize negative feedback and eliminate sound-degrading artifacts.
    Extra Durable Switches
    Ultra high quality switches and potentiometers employ steel casings and metal shafts for long-term reliability.
    MC Loading Options
    25, 50, 100 Ohm or Custom load to set for your cartridge.

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