PH-77 Reference Class Dual-Mono Phono Equaliser Owner’s Manual Ver 2.8.
FCC Declaration of Conformity - United States only Canadian Notice (Avis Canadien) This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Class B Equipment FCC WARNING: This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
WARNINGS The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying this component. Unplug the component from the wall outlet before cleaning. Never use benzine, thinner or other solvents for cleaning; use only a soft damp cloth. Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any openings.
Precautions This equipment has been tested and found to comply with the limits set out in the EMC Directive using a connection cable shorter than 3 metres. It is designed to be operated in a horizontal position only. Do not place heavy objects on the component. On power sources Keep the component away from equipment with strong magnets, such as microwave ovens or large loudspeakers.
Contents WARNINGS 3 Section 1 - Unpacking and Setup 1.1 Unpacking 1.2 Connections 7 8 Section 2 - Component Overview 2.1 Front Panel 2.2 Rear Panel 2.3 Remote Control 9 10 12 Section 3 - Operation 3.1 Power On/Off 3.2 Equalisation (EQ) Curve Adjustment 3.3 Direct/Multiple Inputs 3.4 Loading Options 13 13 13 14 Section 4 - Menu Setting 4.1 Menu Operation Flowchart 4.
4.3 Individual Gain Settings 4.4 Individual Equalisation Settings 4.5 Individual Default Loading 4.6 Cartridge Label Selection 16 17 18 19 Section 5 - Special System Setup 5.1 Special System Setup Menu 21 Section 6 - Multiple Inputs 6.1 Setup for Multiple Inputs 23 Section 7 - The Analogue-to-Digital Converter 7.
Section 1 - Setup Thank you for purchasing this AMR Reference Class component. We hope you derive as much pleasure from using this component as we have enjoyed making it for you. 1.1 Unpacking This section refers to the unpacking of the PH-77 i. Please check that all ii. contents are present PH-77 Reference Class Dual-Mono Phono Equaliser. RC-707 Remote Commander. iii. AMR Burn-In Cable*(ensure CORRECT directionality between the CD source and the PH-77) iv. Mains power cable. v.
1.2 Connections Default: Direct input mode The RCA output connection may also be employed 8 The following diagram illustrates the standard connection of the PH-77 in direct input mode. This is the default factory setting and is suitable for the connection of a single tonearm/cartridge and turntable.
Section 2 - Component Overview 2.1 PH-77 Front Panel F1. STANDBY: to place the PH-77 in active or standby mode. F2. SELECT: to select between the 3 different inputs or to select the different EQ curves (software configurable). F3. MENU/OK: to operate the Menu system for setting cartridge parameters and other functions.
2.2 PH-77 Rear Panel R1. RCA outputs: for the connection of RCA interconnection cables. R2. XLR outputs: for the connection of XLR interconnection cables. R3. DIRECT/NORMAL INPUT: selection of Direct (single input) OR Normal (multiple inputs) vinyl source/sources respectively. R4. USB output: to archive vinyl using the high-definition 24-Bit/96kHz USB Analogue-to-Digital Converter. R5. GROUND post: to connect the turntable/phono cable ground wire/s.
WARNING: Always turn off power to the PH-77 before switching between direct and normal inputs (R3) or before making or changing any connections R6. LOAD: RCA connectors to allow custom loads to be attached to the Direct input. R7. DIRECT input: to connect a cartridge bypassing the multiple input switching. R8. NORMAL inputs (Inputs 1-3): RCA inputs, for signal input of up to three vinyl sources. R9. GROUND post: to connect turntable/phono cable ground wire/s. R10.
2.3 RC-707 RC1. STANDBY: to place the PH-77 in active/standby mode. RC2. MUTE: to place the PH-77 in mute mode. RC3. BRIGHTNESS: to adjust the display’s brightness levels. RC4. MONO: to alternate between Stereo and Mono EQ curves. RC5. MENU: to enter Menu mode*. RC6. OK: to confirm selection in Menu mode*. RC7. SELECT: to select between the 3 different inputs. RC8. LOAD: to select between different loadings. RC9. EQ: to cycle through different EQ curves.
Section 3 - Main Operation 3.1 Power On/Off Once powered OFF, always wait 30 seconds before switching on again Use the ‘POWER’ rocker switch (R11) at the rear of the PH-77 to switch on/off mains power to the PH-77. Always wait at least 30 seconds before switching ON again. This is to enable the OptiMains® circuit to shutdown properly. The display will light up to indicate the unit is switched on and ready for use.
3.4 Loading Options www.amr-audio.co.uk lists the PH-77’s MC/ MM load values Different cartridges have different ideal load values.The PH-77 offers two comprehensive sets of 32 different load values for MC and MM cartridges. Selecting a Standard PH-77 Load Please refer to sub-section 4.5 Individual Default Loading on how to use the menu system to select one of the PH77’s MC/MM load values.
Section 4 - Menu Setting 4 .1 Menu Operation Flowchart With the PH-77, one may select all the relevant parameters to match any cartridge and label the input with the cartridge manufacturer’s name (from a list) or type. The flowchart below illustrates the sequence of settings: This flowchart covers the menu settings 4.2 Individual Cartridge Settings Step 1: Cartridge Type To enter the Menu, press the Menu Button on the front panel (F3) OR on the remote control (RC5).
Use the front panel / buttons (F2) or on the remote control (RC7) to select the type of cartridge based upon the specifications and/or type of cartirdge to be used. After each change of type, the PH-77 will mute for 10 seconds to allow the gain circuit to settle into the new configuration. Once the desired selection has been made, press the front panel confirm the selection and continue on to the next item. button (F3) or on the remote control (RC6) to 4.
Start by selecting the nearest lower value of gain for the desired cartridge. As gain settings are applied directly (after a 10 second mute), one may also set the gain (by ear), to offer a similar loudness as a line level source. Once the selection has been made, press the button on the front panel (F3) or on the remote control (RC6) to confirm the selection and continue to the next item. 4.4 Individual EQ Settings Step 3: Default EQ The 2nd line of the display depicts the EQ selected.
4.5 Individual Default Loading Step 4: Loading The 2nd line of the display displays the Load in Ohm (MC Mode, load 47 Ohm to 47KOhm) or pF (MM Mode, load 47K + 70pF to 680pF). Use the / buttons on the front panel (F2) or on the remote control (RC7) to adjust the loading to that required by the cartridge. Changes to loading happen in real-time and are applied immediately without mute.
4.6 Cartridge Label Selection Step 5: Cartridge label In accordance with whether the Input switch (R3) has been set to ‘Normal’ or ‘Direct’, “Labelling Input Direct” or “Labelling Input 1” is displayed on the 1st line of display. The 2nd line of the display will show the following names in sequence followed by input ID: MC Lo Blue Elec. Empire Miyabi Shure MC High Blue Angel Einstein Monster Stanton MM Brinkmann Fidelity Res.
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Section 5 - Special System Setup 5.1 Special System Setup Menu From the factory presets, with the input switch (R3) set to Direct, the selection of EQ curves (Stereo) is the default / setting. With multiple sources, However, with the input switch (R3) set to Normal, it is possible to make switching between the selection of EQ for ease, make switchcurves OR multiple inputs as the default / setting.
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Section 6 - Multiple Inputs 6.1 Setup for Multiple Inputs With the PH-77, in addition to the use of a single cartridge/tonearm/turntable by selecting ‘Direct’ on Input switch (R3), it is also possible to select ‘Normal’ on Input switch (R3) and connect 1, 2 or 3 different cartridge/tonearm/ turntable combinations and select them via the remote control.
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Section 7 - The Analogue-to-Digital Converter 7.1 Using the HD 24-Bit/96kHz Analogue-To-Digital Converter The PH-77 has built-in, a HD 24-Bit/96kHz Analogue-To-Digital Converter (ADC) with AMR’s customary highlevel of digital implementation to ensure the very best possible quality of signal transfer. This means it is possible to directly digitise/transfer a track/tracks from a vinyl record to a digital format on a personal computer.
Appendix A - A History of EQ Curves Stereophonic Microgroove LP Records Monophonic Microgroove LP Records Display Name Comments Display Name Comments Modern stereo LP playback curve Mono RCA 50 RCA, Urania, Lyrichord Modern stereo LP playback curve but corrects the high frequency roll-off and excessive phase shift of vinyl cutting lathes (Enhanced RIAA EQ) Corrects for the hard, metallic sound of DMM Columbia LP stereo Decca & London,Deutsche Grammophon, Archiv, polygram, NAB, Philips, and ARGO Eur
Appendix B - OptiMains Protection OptiMains® Protection for Excessive Under/Over-Voltages Please consult your The PH-77 is fitted with the OptiMains® system to condition and adjust the incoming mains supply for best AMR distributor/dealer operation under all normal mains conditions (including situations that will cause audible problems without Optifor optimal power Mains®).
Appendix C - Troubleshooting Symptom Possible Cause With power ON • poor/no power plug connection no power is registered at mains power point No sound If in doubt, please Remote control does consult your AMR not work distributor/dealer Solution • insert the power plug firmly into the AC • blown fuse at mains plug • check and change mains plug fuse • incorrect audio cable connections • connect the PH-77 correctly • incorrect amplifier operation • make sure that the input selector on the Amplifier
