Musical Surroundings SuperNova 2 Owner`s manual
Contents
1. located on the right hand side which allows the user to switch between the up to three turntables that can be connected simultaneously to the unit It also features an 11 position Attenuation Switch located on the left hand side which provides volume control when the SuperNova is used in the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION In the center of the front panel there are LEDs for the left and right channels indicating the status of the SuperNova s charging system FRONT PANEL DIAGRAM 2 OUTPUT ATTENUATION KNOB This feature provides volume control for when the SuperNova SOURCE SELECT 5 PUNO DEDICA TEO ab sale edd sound This features allows easy switching between up to three turntables ATTENUATION SETTINGS When using the PHONO DEDICATED configuration the 11 step ATTENUTOR KNOB provides volume control ranging from MUTE complete attenuation to 0 db no attenuation Right Status Output Attenuator Source Select CHARGING STATUS This feature indicates the status of the Super Nova charging system GREEN Battery Mode Separate LEFT and RIGHT channel charging status indicators RED Charged or Charging Mode for the SuperNova s completely isolated LEFT and RIGHT channels See sec 8 4 page 13 for more details on the charging system and the SuperNova Battery Supply unit 5 LOADING SETTINGS The SuperNova is adaptable to any phono cartridge with user2. 2 PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION DIAGRAM 7 page 13 which delivers a variable attenuated signal directly into a power amp This option bypasses the extra circuitry present in nearly every system offering a cleaner sound and making this the preferred option for users who listen exclusively to LPs Connecting the power source The SuperNova connects from the rear panel to the SuperNova Battery Power Supply via the supplied Ribbon Cable and the SuperNova Battery Power Supply then connects to the wall via the supplied Power Cord The SuperNova front panel contains a three position Switch Selector to alternate between turntables an 11 position Attenuator for volume control when using the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION and two LEDs which indicate the status of the charging system See DIAGRAM 2 page 6 for a view of the front panel and explanation of the functions available 3 REAR PANEL The SuperNova s Rear Panel is designed to offer unprecedented flexibility The unit is able to connect to up to three turntables simultaneously with user adjustable Gain and Loading settings for each In the examples below the SuperNova has been connected to three types of cartridges a low output moving coil cartridge turntable 1 a medium output moving coil cartridge turntable 2 and a moving magnet cartridge turntable 3 Check the specifications for your cartridge s and adjust the Gain and Loading settin
3. 243 ohms Pos 5 475 ohms Pos 6 1 000 ohms Pos 7 2 000 ohms Pos 8 50 000 ohms ALL OFF 10 000 ohms GAIN GAIN SWITCHES SWITCHES 200 BE 000 GROUND GAIN GAIN SWITCHES SWITCHES GAN BEG SWITCHES hans Pos 1 56 db Pos 2 50 db Pos 3 46 db Pos 4 44 db NONE ON 40 db ALL ON 60 db FIXED OUTPUT VARIABLE OUTPUT INPUT INPUT LOADING LOADING feunnenep fagaegege RIGHT OUTPUT VARIABLE See section 8 3 page 13 for more details about the PHONO DEDICATED output configuration TURNTABLE 1 RCA input right TURNTABLE 3 RCA input right TURNTABLE 2 RCA input right RIGHT OUTPUT FIXED See section 8 2 page 12 for more details about the STANDARD output configuration TURNTABLE 1 SETTINGS low output moving coil cartridge GAIN 60 db all switches ON LOADING 475 ohms switch 5 ON all othersOFF TURNTABLE 3 SETTINGS moving magnet cartridge GAIN 40 dbs all switches OFF POWER MODULE connect POWER RIBBON CABLE here LOADING 50K ohms switch 8 ON all others OFF TURNTABLE 2 SETTINGS medium output moving coil cartridge GAIN 50 db switch 2 ON all others OFF LOADING 1K ohms switch 6 ON all others OFF 4 FRONT PANEL The SuperNova front panel is very simple It features a three position switch
4. Loading can be changed by adjusting switches 2 8 DIAGRAM 3 page 8 provides a general guide to choosing settings appropriate for your cartridge s The factory Output Loading setting for the SuperNova is 200pf 50 000 Ohms Manufacturer s settings for your cartridge s should be listed in the Owner s Manual for your cartridge s or at the manufacturer s website After setting the switches to correspond as closely as possible to factory recommendations you may want to fine tune the switch configurations by ear to personal taste Typically a lower setting provides increased focus and tighter bass while a higher setting provides more openness LOADING Ohms 658 1000 2000 50 000 100 000 LOADING SETTINGS DIAGRAM 3 on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on on on on off off off off off off off off off off off SWITCH NUMBER 4 on on on on off off off off on on on on off off off off on on on on off off off off off off off on on on on on on on on off off off off off off off off off 5 on on off off on on off off on on off off on on off off on on off off on on on off off off off on on on on off off off
5. off on on on on off off off off off 6 on off on off on off on off on off on off on off on off on off on off on off off on on off off on on off off on on off off on on off off on on off off off off off off on on on off on off off off off off off off off off off off on off on off on off on off on off on off on off on off on off on off on off off off off off off off off off off off off off off off off off off off off off off off off off off off off off on on off on off off on off 6 GAIN SETTINGS DIAGRAM 4 below provides a general guide to choosing Gain settings appropriate to your cartridge Lower Gain settings 40dB are intended for moving magnet cartridges or high output moving coil cartridges Higher Gain settings are intended for use with low output moving coil cartridges 0 5mV or so Gain settings may be listed in the Owner s Manual for the cartridge or at the cartridge manufacturer s website To set the Gain use a small non metallic tool to adjust change the settings There are six switch packs one each for left and right channels for up to three turntables Each switch has four positions for a total of 16 possible combinations After adjusting the Gain to match factory recommendations settings may be further fine tuned to personal taste If using the PHONO DEDICATED VARIABLE OUTPU
6. possible sound Since a power amp generally does not feature independent volume control in the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION the volume is controlled by the 11 step passive attenuator switch located on the SuperNova s front panel When using the STANDARD FIXED OUTPUT CONFIGURATION the attenuator switch is not active DIAGRAM 6 page 12 demonstrates a typical set up in the STANDARD FIXED OUTPUT CONFIGURATION which is the set up that most users will choose DIAGRAM 7 page 13 illustrates the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION in which the SuperNova is hooked up directly to a power amp 11 8 2 CONNECTING TO A PREAMPLIFIER STANDARD CONFIGURATION Most users will probably use the STANDARD CONFIGURATION in which a turntable or turntables are connected to a preamplifier line stage amplifier integrated amplifier or receiver These units contain inputs for several devices as well as master volume and other controls If using a line stage preamp this preamp is then connected to a power amp which is then connected to the speaker system In this configuration use high quality cables to connect the left and right FIXED OUTPUT jacks located on the SuperNova s Rear Panel to the left and right LINE IN jacks of your preamplifier line stage amplifier integrated amplifier or receiver The INPUT jacks on your receiver or preamplifier may be labeled LINE 1 LINE 2 etc or AUX 1 AUX 2 DO NOT P
7. 0 Ohms Independent Gain and Loading settings are available for each of the three phono inputs There are no signal path switches except for the passive attenuator if used There are two available outputs options a standard line out FIXED output and a phono dedicated VARIABLE output A Passive Attenuator on the front of the unit controls volume when the SuperNova is connected directly to a power amp The SuperNova uses Large Area Monolithic Super Matched Transistor Pairs for lowest noise performance SUPERNOVA BATTERY POWER SUPPLY FEATURES Rechargeable batteries The charging circuits completely disconnect from the batteries when in battery mode Optically coupled voltage monitors will wake up the processor to engage the charging of the batteries if the batteries are discharged enough Four seven cell NiMH AA battery packs provide power one for each positive and negative power supply for each channel There are four separate charging circuits The positive and negative battery packs are charged separately in case there is different current usage between the positive and negative power supplies This prevents repeated overcharging one battery pack while undercharging the other battery pack The batteries will be topped off by putting the unit into charge mode if there is no activity for one week Fully Dual Mono even when not in Battery Mode Battery packs have an estimated life of 3 years Replacement
8. Battery Packs are available through your dealer where you purchased your SuperNova The power supply has been designed to sound excellent even without the batteries installed 2 SET UP The SuperNova is easy to set up although because of its flexibility it may take some listening to fine tune the settings to perfectly match your system and your personal tastes Begin by removing the SuperNova and the SuperNova Battery Power Supply from the box Set up involves the following steps Setting configuration of the Gain and Loading The SuperNova is adaptable to any phonograph cartridge with user adjustable Gain and Loading settings that allow the user to match their moving coil or moving magnet cartridge to any of 256 possible Loading and 16 possible Gain settings This feature allows the SuperNova to be custom configured to any high end cartridge resulting in superior imaging amazing presence accurate sound and precise musicality The settings switches for Gain and Loading are located on the SuperNova s rear panel See DIAGRAM 1 page 5 for a complete explanation of the rear panel and its functions Connecting the Inputs and Outputs The SuperNova inputs accept up to three turntables and features two sets of outputs which allow the user to configure their system in two ways 1 STANDARD FIXED OUTPUT CONFIGURATION DIAGRAM 6 page 12 which delivers a standard line level signal to a pre amp line stage amp or integrated amp
9. Charging Mode When the unit is switched to Battery Mode GREEN the batteries and the SuperNova will be disconnected from the wall power and isolated from the associated magnetic fields The unit will operate for at least three hours in Battery Mode The unit will play fine in any stage of the Charge Cycle but for best results use the unit in Battery Mode To begin a listening session switch the unit into Battery Mode GREEN When you have finished listening switch the unit back into Charging Mode RED If you forget to do this the unit itself will sense the batteries reaching a discharged state and will initiate the charging cycle However we recommend that you not let the batteries discharge to this degree frequently To use the unit correctly place it in Battery Mode GREEN before a listening session and return it to Charging Mode RED when finished This will maximize the life of your battery packs 10 USING THE SUPERNOVA The SuperNova is now ready to use All high fidelity equipment sounds best after a warm up period and for the SuperNova we recommend one hour Place a record on your turntable cue down the stylus and slowly raise the volume control on your line preamplifier or on the SuperNova this insures the unit is stable and will not damage your system if the configuration is not set correctly Now just sit back and enjoy the 14 music For best performance the SuperNova should be left ON when not in use in Charging
10. If you have less than three turntables but multiple cartridges you may configure the Load and Gain of the various inputs to the different cartridges to optimize each cartridge Then you only need to plug your tonearm cable into the appropriately configured input when using that specific cartridge Take caution when connecting and disconnect tonearm cables not to damage delicate RCA connections on those cables It is recommended that all equipment amps turntables etc be turned off when connecting any audio equipment INPUT CONNECTIONS DIAGRAM 5 Jay ny TURNTABLE 1 TURNTABLE 2 TURNTABLE 3 LEFT and RIGHT RCA jack outputs from each turntable are plugged into the SuperNova s back panel SUPERNOVA 10 8 OuTPUTS 8 1 WHICH OUTPUT CONFIGURATION IS BEST FOR ME The SuperNova features two sets of left and right outputs VARIABLE and FIXED which allows the user to configure a system in one of two ways 1 a STANDARD FIXED OUTPUT CONFIGURATION which delivers a standard line level signal to a pre amp line stage amp integrated amp or receiver This is a typical configuration for most home systems where there are multiple input sources such as a CD player or tuner in addition to a phonograph 2 a PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION which delivers a variable attenuated signal directly into a power amp This option bypasses the extra circuitry present in nearly every system Although for reasons of c
11. LUG THE SUPERNOVA INTO ANOTHER COMPONENT S PHONO INPUT The SuperNova is designed to replace such circuitry STANDARD OUTPUT CONFIGURATION DIAGRAM 6 TURNTABLE 1 ht 2 Y TURNTABLE 3 ES SUPERNOVA CD PLAYER F TUNER PREAMPLIFIER SPEAKER SPEAKER POWER AMPLIFIER 12 8 3 CONNECTING TO A POWER AMP PHONO DEDICATED CONFIGURATION The PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION allows the user to connect 1 their turntable s to the SuperNova and 2 the SuperNova directly to a power amplifier Use high quality interconnect cables to connect the SuperNova s left and right Variable Output jacks to the LINE IN jacks of your power amp Select the appropriate Gain setting on the 4 position Gain switch for the most accurate rendition of the recording and the listening levels you prefer Typically Gain is lower for the PHONO DEDICATED CONFIGURATION than for the STANDARD CONFIGURATION If using the PHONO DEDICATED CONFIGURATION Gain settings based on your phono cartridge output level and your system characteristics can be used to further optimize the range of the 11 position attenuator It is recommended that all equipment amps turntables etc be turned OFF when connecting any audio components PHONO DEDICATED OUTPUT CONFIGURATION DIAGRAM 7 TURNTABLE 1 TURNTABLE 2 TURNTABLE 3 SUPERNOVA 7 I 9 y u Mat POWER AMPLIFIER 13 8 4 20DB 0DB SWITCH For ce
12. MUSICAL SURROUNDINGS PRESENTS THE SUPERNOVA PHONOGRAPH PREAMPLIFIER OWNER S MANUAL THE SUPERNOVA PHONOGRAPH PREAMPLIFIER TABLE OF CONTENTS INTRODUCING THE SUPERNOVA SET UP REAR PANEL FRONT PANEL LOADING SETTINGS GAIN SETTINGS INPUTS OUTPUTS 8 1 WHICH OUTPUT CONFIGURATION IS BEST FOR ME 8 2 CONNECTING TO A PREAMPLIFIER STANDARD CONFIGURATION 8 3 CONNECTING TO A POWER AMPLIFIER PHONO DEDICATED CONFIGURATION 8 4 20DB 0DB SWITCH 8 5 ATTENUATION SWITCH 9 SUPERNOVA BATTERY POWER SUPPLY 10 USING THE SUPERNOVA 11 MIKE YEE S NOTES ON THE SUPERNOVA 12 WARRANTY INFORMATION DIAGRAMS DIAGRAM 1 REAR PANEL DIAGRAM 2 FRONT PANEL DIAGRAM 3 LOADING SETTINGS CHART DIAGRAM 4 GAIN SETTINGS CHART DIAGRAM 5 INPUT CONNECTIONS DIAGRAM 6 STANDARD OUTPUT CONFIGURATION DIAGRAM 7 PHONO DEDICATED CONFIGURATION PAGE 3 PAGE 4 PAGE 5 PAGE 6 PAGE 7 PAGE 9 PAGE 10 PAGE 11 PAGE 11 PAGE 12 PAGE 13 PAGE 14 PAGE 14 PAGE 14 PAGE 14 PAGE 15 PAGE 16 PAGE 5 PAGE 6 PAGE 8 PAGE 9 PAGE 10 PAGE 12 PAGE 13 1 INTRODUCING THE SUPERNOVA The SuperNova is a complete phonograph preamplifier that is designed with superior imaging in mind providing realistic imaging of all types of music NON o N o N I FEATURES The SuperNova handles up to three phono inputs Gain settings are user adjustable from 40 to 60 dB Loading settings are user adjustable from 30 Ohms to 100 00
13. Mode Remember to let the SuperNova warm up for one hour if you should disconnect it 11 MIKE YEE S NOTES ON THE SUPERNOVA The SuperNova is a three input phono preamplifier intended for use with more than one turntable or a turntable with more than one tonearm There is user adjustable loading and gain for each of the inputs The loading and gain is set via switches and is accessible from the rear of the chassis The SuperNova switching between the inputs does not actually switch the inputs and loading but rather by three independent front ends that are switched by means of switching the current source to one of the front ends The outputs of the front ends are summed into the back end circuitry In this way no switching occurs in the signal path when not using the switched attenuator The SuperNova is fully dual mono and is powered from a remote dual mono power supply The remote power supply supports NiMH rechargeable batteries but is designed to work perfectly without the batteries The batteries will allow the SuperNova to run completely isolated from the wall power for a period of three hours There are four independent charging circuits for the four battery packs The SuperNova has an 11 position switched attenuator output that allows direct output to a power amplifier HOW THE LIMITED ATTENUATOR WORKS Gain in a typical system Gain with a Limited Attenuator and SuperNova Moving coil Phono Stage 60dB Line Amp 18dB Movi
14. T CONFIGURATION Gain selection will also be based on your system characteristics to optimize the range of the 11 position attenuator To reduce Gain to below 40dB use the 20dB GAIN switch located on the rear panel of the SuperNova Note Always let the unit settle for 60 seconds after any configuration changes are made before listening Slowly raise the volume control this insures the unit is stable and will not damage your system if the configuration is not set correctly GAIN SETTINGS DIAGRAM 4 switch number GAIN dB 1 2 3 4 40 OFF OFF OFF OFF 43 5 OFF OFF OFF ON 46 OFF OFF ON OFF 48 OFF OFF ON ON 50 OFF ON OFF OFF 51 5 OFF ON OFF ON 52 7 OFF ON ON OFF 53 7 OFF ON ON ON 55 6 ON OFF OFF OFF 56 3 ON OFF OFF ON 56 9 ON OFF ON OFF 57 5 ON OFF ON ON 58 4 ON ON OFF OFF 58 9 ON ON OFF ON 59 4 ON ON ON OFF 59 9 ON ON ON ON 7 INPUTS Up to three turntables can be connected to the SuperNova simultaneously by using the PHONO 1 PHONO 2 and PHONO 3 jacks located on the back panel Connect the left and right cables from your turntable s to the left and right PHONO 1 PHONO 2 and PHONO 3 INPUT jacks on the SuperNova s back panel If your turntable has a ground lead connect that wire to the ground lug on the SuperNova s rear panel When hooking up multiple turntables and cartridges you may have to experiment with connecting the ground leads for the turntables connected to the PHONO 2 and PHONO 3 jacks to avoid ground loops
15. adjustable dip switches that allow the user to match their moving coil or moving magnet cartridge to any of 256 possible Output Loading settings The six eight position switch packs located on the rear panel DIAGRAM 1 page 5 provide left and right channel settings for each turntable connected to the unit Each switch has two settings UP for ON and DOWN for OFF Consult DIAGRAM 3 page 8 and select the input loading value that corresponds most closely to the cartridge manufacturer s recommendations which can be found in the Owner s Manual or at the manufacturer s website Use a small non metallic tool to set the switches as directed on DIAGRAM 3 page 8 Switch 1 controls Capacitive Loading which is generally used with moving magnet cartridges and has little effect on moving coil cartridges while switches 2 7 control Resistive Loading which is primarily used with lower output moving coil cartridges Moving magnet and high output moving coil cartridges use around 50 000 Ohms switch 8 while low output moving coil cartridges typically use 1 000 Ohms or less Typically a low output moving coil cartridge should be loaded to ten times its internal impedance Thus cartridges with an internal impedance of less than ten Ohms will be more sensitive to loading settings below 300 Ohms which are provided in the SuperNova Capacitive Loading can be changed by adjusting Switch 1 as follows Switch 1 OFF 200pF Switch 1 ON 300pF Resistive
16. gs accordingly REAR PANEL DIAGRAM 1 TURNTABLE 2 SETTINGS medium output moving coil cartridge GAIN 50 db switch 2 ON all others OFF LOADING 1K ohms switch 6 ON all others OFF TURNTABLE 3 SETTINGS moving magnet cartridge GAIN 40 dbs all switches OFF LOADING 50K ohms switch 8 ON all others OFF TURNTABLE 1 SETTINGS low output moving coil canicas GAIN 60 db all switches ON LOADING 475 ohms switch 5 ON all othersOFF GROUND LUG Attach ground wire from tumtable s here LEFT OUTPUT FIXED See section 8 2 page 12 for more details TURNTABLE 1 about STANDARD output configuration RCA input left TURNTABLE 3 RCA input left TURNTABLE 2 RCA input left LEFT OUTPUT VARIABLE See section 8 3 page 13 for more details about PHONO DEDICATED output configuration GAIN and LOADING These are general settings for common configurations For more complete tables see secs 5 and 6 pages 7 9 20db Odb SWITCH See sec 8 4 page 14 for details MUSICAL SURROUNDINGS MADE IN U S A PHONO 1 PHONO 2 PHONO 3 IHABHANB ABaBBRER INPUT INPUT INPUT LOADING LOADING LOADING ON UP OFF DOWN INPUT LOADING SWITCHES FIXED OUTPUT VARIABLE OUTPUT pag Pos 1 Oo Pos 2 59 ohms Pos 3 121 ohms Pos 4
17. l Surroundings at telephone 510 547 5006 ext 101 fax 510 547 5009 email service musicalsurroundings com If the unit must be returned for repair contact Musical Surroundings at the phone number above A Return Authorization must be issued prior to you returning your SuperNova for service For more information on the SuperNova see the Musical Surroundings website at musicalsurroundings com or Mike Yee s website at MichaelYeeAudio com 16
18. ng coil Phono Stage 40dB Power Amp 30dB Power Amp 30dB Total Gain 108dB Total Gain 70 dB Required Attenuation 30dB Required Attenuation 5dB Most Audio systems have far too much gain The excess gain needs to be reduced by setting an attenuator by a typical 30dB By fine tuning the SuperNova Gain Switches and using the Limited Attenuator typical listening can be done with little or no attenuation By reducing unneeded gain the system does not need to work as hard thereby achieving a more natural sound The extra 25dB gain equates to about 20 times more work Imagine working 20 times harder than you need to The Limited Attenuator has a major advantage over a Passive Attenuator A Passive Attenuator typically has significant output impedance creating sensitivity to the particular type of output cable The Limited Attenuator has much lower output impedance 15 12 WARRANTY INFORMATION Fill out the enclosed warranty card and return it to us within 30 days with a copy of your sales receipt The unit is fully warranted against failure for three years after purchase The warranty covers parts and labor Damage due to improper use modifications or acts of nature are not covered by this warranty We will not assume any liability for any damage to any other component in the system due to a failure in the SuperNova If you believe your SuperNova is malfunctioning please contact the dealer where you purchased the unit or contact Musica
19. onvenience many users will select the first option this second offers an extraordinarily clean signal making this a preferred option for users who listen exclusively to LPs Most users those who want to use their system to listen to CDs and radio in addition to LPs will connect their SuperNova in the STANDARD CONFIGURATION In this case the SuperNova will be connected to the LINE IN jacks of their preamplifier line stage amplifier integrated amplifier or receiver Receivers and integrated amplifiers will then connect directly to the speaker system while preamps and line stage amps will connect to a power amp which is then connected to the speaker system This is the configuration that most users are accustomed to the proper set up for those wishing to easily switch from tuner to CDs to LPs This set up allows all of your components to be connected through standard line level inputs into a single preamplifier This allows the user to control volume for all of the components from one location and to easily switch functions But if you listen mostly to LPs and do not mind having a system dedicated solely to that we recommend the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION In this case the SuperNova connects directly to a power amp This configuration eliminates impediments such as extra gain stages connections switches and cabling from the system that disrupts the signal and is an extremely effective set up for obtaining the cleanest
20. rtain high output moving coil or moving magnet cartridges you may find it desirable to reduce Gain to below 40dB Use a small non metallic tool to adjust the 20dB 0dB Gain Switch on the Rear Panel of the SuperNova 8 5 ATTENUATION Since a power amp generally does not feature independent volume control in the PHONO DEDICATED VARIABLE OUTPUT CONFIGURATION the volume is controlled by an 11 step Passive Attenuator Switch located on the SuperNova s Front Panel The 11 position Attenuator Switch features incremental steps from MUTE complete attenuation to 0dB no attenuation and serves as a volume control when the unit is directly connected to a power amp When using the STANDARD FIXED OUTPUT CONFIGURATION the Attenuator Switch is not active 9 BATTERY POWER SUPPLY The SuperNova Battery Power Supply connects to a wall outlet by standard plug and to the SuperNova via the supplied ribbon cable which clips into place Use care not to bend or crinkle the ribbon cable The LED on the Front Panel of the SuperNova Battery Supply indicates the CHARGING STATUS of the unit The four states of the Charge Cycle are 1 GREEN Battery Mode 2 STEADY RED Charging Mode 3 SLOWLY BLINKING RED indicates that the unit is charging when it is fully charged it will become STEADY RED 4 RAPIDLY BLINKING RED indicates a problem with the charging system A Mode Switch on the front of the unit allows switching between Battery Mode and
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