PH60B Phono Stage User Guide is a division of Radial Engineering Ltd. 1588 Kebet Way, Port Coquitlam BC, Canada V3C 5M5 (604) 942-1001 info@hafler.com www.hafler.com
PH60B Phono stage USER GUIDE Table of Contents Page Features...1-2 Overview... 3 Set the Load... 4 Connect...5-6 Adjusting the Gain... 7 Using... 8 Warranty...Back Cover Thank you for purchasing the PH60B phono stage, one of the best sounding and most versatile phono preamps ever made. The PH60B will boost the signal from your turntable and apply the necessary RIAA curve, allowing you to connect to a HIFI playback system, a pro audio console input or a recording interface. Before making any connections, make sure your audio system is turned off. This will help avoid loud turn-on and connection transients that can damage more sensitive components such as tweeters. The PH60B is designed for a turntable that is equipped with a moving coil (MC) cartridge, allowing for high quality playback over balanced or unbalanced outputs. If your turntable is equipped with a moving magnet (MM) cartridge, please consider purchasing the PH50B, which is specifically designed for these types of cartridges.
R FEATURES LOW CUT LIFT POWER 1 3 PH60B 2 1. Low Cut: Activates the high-pass filter to control low frequencies 2. Lift: Ground lift on the XLR outputs to remove hum and buzz 3. Power: Turns on the PH60B 1
R 4 5 CE PH60B PHONO PREAMP FOR MOVING COIL OUTPUT GROUND INPUT 9 15VDC 400mA LEFT BALANCED RIGHT is a division of Radial Engineering Ltd. 6 7 8 4. Cable clamp: Secures the power supply cable 5. 15VDC: external power supply connection 6. Balanced Outputs: XLR outputs connect to a recording interface or balanced HIFI system inputs 7. Unbalanced Outputs: RCA output to feed the receiver 8. Ground lug: For turntable to eliminate hum and buzz 9. input: RCA input to connect your turntable to the PH60B 2
Overview Moving coil cartridges produce a much lower output than a moving magnet. In order to bring their gain up to a useable level, between 60 and 70dB of gain is required. This in fact is extremely difficult to do without introducing noise or artefact. This is why moving coil preamps are more expensive. STYLUS COIL MAGNET The PH60B is a combination pre-preamp and RIAA preamp that both increases the level to accommodate the moving coil, adds in the RIAA equalization curve and then boosts the signal so that it can be used by a typical high fidelity receiver. -60 db -10 db Moving Coil PH60B Receiver Amp About the RIAA Equalization Curve The Recording Institute Association of America (RIAA) figured out that in order to reproduce a vinyl recording effectively, the high frequencies have to be exaggerated. Upon playback, the reverse filter must then be applied resulting in a flat and natural sound. Preamp +20 +10 Playback 0-10 Record -20 10 Hz 100 Hz 1 khz 10 khz 3
SETTING LOAD FOR YOUR CARTRIDGE The PH60B is set up to accommodate various types of moving coil cartridges. This is accomplished with a series of internal jumpers that can be set for 25Ω, 50Ω and 100Ω plus a custom setting should this be needed. The PH60B 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 PH60B using a standard Phillips screwdriver and a HEX 5/64", carefully pull the jumper from the 100Ω position and push it back on to the 25Ω or 50Ω position to suit. Setting the load correctly will assure the most accurate frequency response. 25 ohms 50 ohms 100 ohms CUSTOM 25 ohms 50 ohms 100 ohms CUSTOM 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 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. 4
R CONNECT Turn off your system and connect the output from your turntable to your PH60B. Make sure you use high quality coaxial cables with proper shielding to minimize noise. It is also very important that you ensure the ground connection from the turntable is properly and securely fastened to your PH60B. Using the Unbalanced Outputs If you are connecting to a HIFI receiver use the RCA outputs on the PH50B into a pair of line level inputs on the receiver. Do not use inputs labeled phono as these will apply the RIAA equalization curve a second time, resulting in distortion and a loss of high frequencies. Turntable L R CE PH60B PHONO PREAMP FOR MOVING COIL OUTPUT GROUND INPUT 15VDC 400mA LEFT BALANCED RIGHT is a division of Radial Engineering Ltd. Receiver CD TUNER BD/DVD AUX AUX 5
R Using the Balanced Outputs The balanced XLR outputs on the PH60B allow you to connect to devices with balanced inputs, including some home stereo receivers, and pro audio equipment such as recording interfaces or mixing consoles. This allows you to set up a turntable for playback in a home theater or recording studio, or to convert your vinyl collection to a digital format using recording software. Ensure that you are connecting to inputs that are set for line-level operation. Once connected, should you encounter buzz or hum from ground loops, simply engage the LIFT switch on the front of the PH60B to lift the audio ground on the XLR outputs. The balanced outputs on the PH60B can be set between two different outputs levels using an internal push-switch. The default setting is +4dB with the switch in the out position, and -10dB with the switch pushed in. Turntable L R CE PH60B PHONO PREAMP FOR MOVING COIL OUTPUT GROUND INPUT 15VDC 400mA LEFT BALANCED RIGHT is a division of Radial Engineering Ltd. Receiver INPUT CD TUNER BD/DVD AUX AUX 6
ADJUSTING THE GAIN The balanced outputs on the PH60B can be set between two different output levels using an internal push-switch. The default setting is +4dB with the switch in the out position, and -10dB with the switch pushed in. To access the switch follow the instructions on pg.4 and remove the necessary screws to open the PH60B. OUT position +4dB IN position -10dB Most consumer audio devices are set to operate at a -10dB line level, while pro audio equipment such as mixing consoles and recording interfaces will be set to accept a higher output +4dB level. Check with the manufacturer of your receiving device to determine whether it operates at -10 or +4dB. 7
R R R USING The PH60B is equipped with a switchable high-pass filter that can be activated to eliminate excessive low frequency rumble. This can occur when listening to music at higher levels. If you encounter rumble, simply activate the filter. This handy function can also be used to reduce low PH60B PHONO PREAMP OUTPUT INPUT FOR MOVING COIL frequency transmission to other rooms. Bass energy is much more powerful than mids and highs. Cutting the bass enables you to increase the volume without causing others as much discomfort. BALANCED is a division of Radial Engineering Ltd. Gain LOW CUT LIFT POWER Frequency PH60B A cable clamp next to the power jack can be employed to prevent accidental disconnection. Loosen the clamp, pass the power cable through and re-tighten. CE PH60B PHONO PREAMP FOR MOVING COIL OUTPUT GROUND INPUT 15VDC 400mA LEFT BALANCED RIGHT is a division of Radial Engineering Ltd. You are now ready to enjoy 50 years of tradition of building the very finest audio products for the most demanding high fidelity enthusiasts. 8
THREE YEAR TRANSFERABLE LIMITED WARRANTY HAFLER (A division of Radial Engineering Ltd.) ( ) warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. will repair or replace (at its option) any defective component(s) of this product (excluding finish and wear and tear on components under normal use) for a period of three (3) years from the original date of purchase. In the event that a particular product is no longer available, reserves the right to replace the product with a similar product of equal or greater value. In the unlikely event that a defect is uncovered, please call 604-942-1001 or email service@hafler.com to obtain a RA number (Return Authorization number) before the 3 year warranty period expires. The product must be returned prepaid in the original shipping container (or equivalent) to or to an authorized repair centre and you must assume the risk of loss or damage. A copy of the original invoice showing date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty. This warranty shall not apply if the product has been damaged due to abuse, misuse, misapplication, accident or as a result of service or modification by any other than an authorized repair center. THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DESCRIBED ABOVE. NO WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE YEARS. HAFLER SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM THE USE OF THIS PRODUCT. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE YOU LIVE AND WHERE THE PRODUCT WAS PURCHASED. PH60B User Guide - Part #: R870 1312 00 / 08-2017 / V1 Copyright 2017 All rights reserved. Specifications and appearance subject to change without notice. www.hafler.com