Crest Audio HP-EIGHT Owner's Manual
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Crest Audio HP-EIGHT Owner's Manual

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  • Page 1 HP-Eight Owner’s Manual...
  • Page 3 HP-Eight Owner’s Manual Model Number : Serial Number : opt- PSU Serial Number : Owner : Purchase Date : Dealer Name : Dealer Number : Install Date : Installed By : Contact Number :...
  • Page 4 Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the lit- erature accompanying the product.
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS WARNING: When using electrical products, basic cautions should always be followed, including the following: Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any of the ventilation openings.
  • Page 7 table of contents Mono Inputs p.10 Stereo Inputs p. 26 Groups p. 34 Auxes p. 44 Left - Right p. 48 Mono p. 54 Matrix p. 58 Master Section p. 60 Power Supply p. 68 Specifications p. 74...
  • Page 8 HP-Eight owner’s manual...
  • Page 9 HP-Eight console will appear as: TERMS tasks are broken down into steps warnings Procedures not to attempt. Issues or hazards to keep in mind when operating the equipment.
  • Page 10 HP-Eight owner’s manual module block diagram panel 48 V GAIN POLARITY LO CUT – 48 V – GAIN – – POLARITY EQ ON AUX SENDS LO CUT – • – • – • – • – • –...
  • Page 11 mono input features +48 V +48 volts DC is applied equally (through current-limiting resistors) to both pins 2 and 3 on the mic-input XLR connector.This feature is used with condenser The 48V switch microphones and active direct boxes that require an external DC voltage (phan- should tom power) in order to operate.
  • Page 12 HP-Eight owner’s manual module block diagram panel 48 V GAIN POLARITY LO CUT – 48 V – GAIN – – POLARITY EQ ON AUX SENDS LO CUT – • – • – • – • – • –...
  • Page 13 mono input features Lo-Cut filter This filter reduces or eliminates unwanted low frequencies without substantially affecting the program material. Quite often, such unwanted low frequencies are When performing included with mic- or line-input signals. For example, stage rumble or wind can outdoors, wind- be picked up through vocal mics.The cut-off frequency of the filter is 72 Hz and induced, low-frequency...
  • Page 14 HP-Eight owner’s manual module block diagram panel – 48 V GAIN POLARITY LO CUT – – – – – EQ ON AUX SENDS – – • – • – – • – • – • – • EQ ON –...
  • Page 15 mono input EQ features Many audio signals coming into the console require some degree of corrective equalization in order to be part of a good sounding mix. The input EQ consists of four-bands: high, high-mid, low-mid and low. The high and low bands have fixed frequencies while the high-mid and low-mid bands are sweepable, with their higher and lower frequencies overlapping adja- cent bands.
  • Page 16 HP-Eight owner’s manual module block diagram panel AUX SENDS 48 V GAIN – POLARITY LO CUT – • – – • – – – • EQ ON AUX SENDS – – • • – • – – •...
  • Page 17 mono input aux send features Ten aux sends are available for creating individual output mixes.These mixes can be used for driving effects processors, providing monitor mixes, creating broad- cast or alternate sound reinforcement mixes,or other special requirements.With the corresponding PRE switches in the UP position, the Aux sends are fed from the Post-fader channel signal.
  • Page 18 HP-Eight owner’s manual module block diagram panel 48 V GAIN EVEN POLARITY LO CUT MUTE – – L - R – – ASSIGN EQ ON AUX SENDS – 1 - 2 • – • – 3 - 4 •...
  • Page 19 mono input bus assignment features The Input bus assignment section offers considerable flexibility for creating what even- tually becomes the main output mix. Channels can be assigned to the independent Mono bus, the pan-paired Left/Right buses, or any of the pan-paired subgroups (1-2, 3- 4, 5-6, 7-8).All assignments are derived post-fader, post-eq, and post-mute.
  • Page 20 HP-Eight owner’s manual module block diagram panel 48 V GAIN EVEN POLARITY LO CUT MUTE – – L - R – – ASSIGN EQ ON AUX SENDS 1 - 2 – • – • 3 - 4 –...
  • Page 21 The HP-Eight is equipped with a 4-Scene muting system.An input channel can be assigned to any of the 4 available scenes (A thru D).When the Mute Scene Master switch (located in the Master module) is depressed, all channels assigned to that scene will mute.
  • Page 22 D.O. D.O. CHAN 1 CHAN 5 CHAN 7 CHAN 3 CHAN 8 CHAN 4 CHAN 6 CHAN 2 HP-Eight Input EQ PCB POST (Upper PCB) POST CHAN 8 CHAN 7 CHAN 6 CHAN 5 CHAN 4 CHAN 3 CHAN 2...
  • Page 23 Before implementing an option (by blobbing), be SURE to cut the existing, thin copper trace linking the two halves of the default SB. Failure to do so will result in the channel failing to operate properly and possible circuit damage. HP-Eight Mono Input OPTIONS TABLE “PRE”...
  • Page 24 - rear HP-Eight owner’s manual module block diagram panel DIR OUT 48 V GAIN POLARITY INSERT LO CUT – – PUSH – – EQ ON AUX SENDS – • BAL IN – • – • – •...
  • Page 25 Nominal Operating Level= +4dBu In situations where the preamp circuit- NOTE: To avoid any degradation of the HP-Eight’s channel signal, any process- ry is not needed, the Insert ing gear patched into the channel insert should have a low impedance output Return can be used as the (<100Ω) and must be capable of cleanly driving a 2KΩ...
  • Page 26 HP-Eight owner’s manual panel module block diagram 12V LAMP S T ER EO L IN E IN P U T GAIN – –3 –3 S T E R E O L I N E I N P U T...
  • Page 27 10dBV, unbalanced signals (from a CD player, tape deck, etc). Internal amplifiers PLUS additional RCA jacks. boost that -10dBV signal up to the +4dBu pro-level that the HP-Eight uses. Both the TRS and RCA jacks can be used simultaneously. Both sets of signals will be mixed together.
  • Page 28 HP-Eight owner’s manual panel module block diagram 12V LAMP S T ER EO LI N E I N P UT GAIN – –3 –3 S T E R E O L I N E I N P U T...
  • Page 29 stereo inputs EQ features Many audio signals coming into the console require some degree of corrective equalization in order to be part of a good sounding mix. Each Stereo Input is equipped with a fixed-frequency, three-band EQ.The HF and LF bands have a shelving response, the MF band is bell-shaped, centered at 3kHz.The EQ circuitry is always in the signal path, set all EQ controls to “0”...
  • Page 30 HP-Eight owner’s manual module block diagram panel 12V LAMP S T ER EO TA P E I N P UT GAIN – –3 –3 S T E R E O L I N E I N P U T GAIN –...
  • Page 31 stereo inputs channel muting features MUTE Pressing this switch will mute the stereo feed to any of the assigned buses and any Aux sends. MUTE LED L E D The associated red-LED will light when the stereo channel is muted. bus assignment features The bus assignment section offers considerable flexibility for creating what even- tually becomes the main output mix.
  • Page 32 HP-Eight owner’s manual module block diagram AUX BUS 6 12V LAMP GAIN AUX BUS 7 FITTED SOLDER LINK BLOB ROTARY GROUND COMP BALANCED ELECT 1/4” TRS THE REAL BICOLOR PANEL AUX BUS 8 USER OPTIONS FADER DRIVER DRIVER...
  • Page 33 stereo inputs stereo fader The stereo inputs are provided with high-quality, 60mm stereo faders. Normal mixing range is around the “0” mark, with up to 10dB fader-boost available when needed. signal monitoring features The stereo inputs are equipped with a bicolor LED that displays the summed, Pre-fader signal level with varying intensity green illumination, and also indicates impending channel overload (within 3dB of clipping) by turning red.
  • Page 34 HP-Eight owner’s manual panel module block diagram 12V LAMP – – • • – – –3 –3 • • GROUP GROUP S T E R E O L I N E I N P U T GAIN – MUTE...
  • Page 35 (audio subgroups) features The HP-Eight is equipped with 8 audio subgroups, in addition to the main L/R and Mono mix buses.All of the Inputs (Mono and Stereo) have full assignment capa- bilities to all 11 of these mix buses.Typically, these 8 groups are used to create sub-mixes within the main program, these sub-mixes are then combined to cre- ate the overall mix.The use of groups allows the operator to easily control and...
  • Page 36 HP-Eight owner’s manual panels module block diagram 12V LAMP – – • • – – –3 –3 • • GROUP GROUP S T E R E O L I N E I N P U T GAIN – MUTE...
  • Page 37 groups Group monitoring features Within this Group section, the 100mm fader is normally in the Group audio path.This can be changed with the use of the Fader-Flip switch.When the Fader-Flip switch is depressed, the corresponding Aux output is controlled by the 100mm fader (the Group output is then controlled by the corresponding Aux rotary pot).
  • Page 38 HP-Eight owner’s manual module block diagram panels 12V LAMP – – • • –3 –3 Upper Rotary Controls S T E R E O L I N E I N P U T GAIN – Fader Area Controls MUTE LO CUT –...
  • Page 39 Fader-Flip Function Using the HP-Eight as a Monitor Console Because of its 10 Aux sends, the HP-Eight can be used as a 10-output Monitor mixer. Each input channel can access all of the individual Aux mixes, allowing 10 unique mixes to be generated. Normally, the output level of each of these Aux mixes is controlled by the corresponding Aux Master rotary level pot.
  • Page 40 HP-Eight owner’s manual module block diagram panels 12V LAMP – – • • –3 –3 – – • • S T E R E O L I N E I N P U T Matrix Send Controls GAIN –...
  • Page 41 groups Group mixing features After using the groups to create the desired sub-mixes, you typically want to route and combine them with other signals or groups to create various output mixes.These mixes can be your final house mix (L/R/Mono), a special mix for a choir or vestibule area, or an additional feed tailored specifically for a video or TV broadcast.
  • Page 42 - rear panel HP-Eight owner’s manual block diagram HP-Eight Group (1 of 8 Shown) INTERNAL GROUP RIBBONS GROUP (1-8) INSERT MIX AMP -2dBu INTER- ∑ CONNECTS GROUP TO MONITOR MONO ASSIGN CIRCUITS MUTE GROUP PEAK PEAK GROUP +4dBu MATRIX...
  • Page 43 The HP-Eight group output connections are located on the Master rear output panel. Each group features a 1/4” TRS output connector, along with a 1/4” TRS Insert connector.The output is a ground-compensated, impedance-balanced TRS jack. For wiring purposes, treat this connector exactly like a balanced output.
  • Page 44 HP-Eight owner’s manual module block diagram panels 12V LAMP – – • • –3 –3 S T E R E O L I N E I N P U T Aux Master Controls GAIN – MUTE LO CUT Fader Area Controls ( for Fader-Flip use ) –...
  • Page 45 auxes auxes (auxiliary mixes) Ten Aux buses are available for creating individual output mixes from the Input channels of the Console.These mixes can be used for driving effects processors, providing monitor mixes, creating broadcast or alternate sound reinforcement mixes, or other special requirements.The Aux buses are fed from the 10 Aux Send pots on the Mono Input channels, and from the 2 Aux Send pots on the Stereo Inputs.
  • Page 46 - rear panel HP-Eight owner’s manual block diagram HP-Eight Group (1 of 8 Shown) INTERNAL GROUP RIBBONS GROUP (1-8) INSERT MIX AMP -2dBu INTER- ∑ CONNECTS GROUP TO MONITOR MONO ASSIGN CIRCUITS MUTE GROUP PEAK PEAK GROUP +4dBu MATRIX...
  • Page 47 The HP-Eight Aux output connections are located on the Master rear output panel.Each Aux features a 1/4” TRS output connector,along with a 1/4” TRS Insert connector.The output is a ground-compensated, impedance-balanced TRS jack. For wiring purposes, treat this connector exactly like a balanced output.When connected to a balanced input, that input will see equal impedance on each leg.
  • Page 48 - right HP-Eight owner’s manual panel module block diagram – – • • – – –3 –3 • • LEFT RIGHT S T E R E O TA P E I N P U T GAIN – MUTE LO CUT –...
  • Page 49 & right (main audio buses) features The HP-Eight is equipped with 3 main audio buses, in addition to the 8 audio sub- groups.This section of the manual deals with 2 of those 3 main buses- Left & Right. The Mono bus will be described later, The assignment to the L-R buses is always through a pan-pot, either from the Mono or Stereo input channels, or from the 8 audio subgroups.Typically, these 2 main buses are used to create the overall stereo...
  • Page 50 - right HP-Eight owner’s manual module panels block diagram – – • • –3 –3 Upper Rotary Controls S T E R E O TA P E I N P U T GAIN – MUTE LO CUT Fader Area Controls –...
  • Page 51 Fader-Flip Function Using the HP-Eight as a Monitor Console Because of its 10 Aux sends, the HP-Eight can be used as a 10-output Monitor mixer. Each input channel can access all of the individual Aux mixes, allowing 10 unique mixes to be generated.
  • Page 52 - right HP-Eight owner’s manual block diagram LEFT (R) HP-Eight Left & Right : Left Shown LEFT(R) INSERT MIX AMP -2dBu ∑ TO MONITOR CIRCUITS (PRE FADER) L (R) MONO FADER ASSIGN MUTE PEAK PEAK LEFT (R) BAL OUT...
  • Page 53 - right L-R connectors- rear panel The HP-Eight L-R output connections are located on the Master rear output panel. Each output features a male XLR output connector, along with a 1/4” TRS Insert connector.The output is a cross-coupled, balanced XLR jack.
  • Page 54 HP-Eight owner’s manual panel module block diagram 12V LAMP – DC-PWR STATUS M O N I T O R S • –3 – SOLO • MONO M O N I T O R SOLO TAPE B MONO MUTE...
  • Page 55 (main audio bus) features The HP-Eight is equipped with 3 main audio buses, in addition to the 8 audio sub- groups.This section of the manual deals with 1 of those 3 main buses- the Mono bus. The Mono bus is directly assignable from all of the Mono and Stereo Inputs, the 8 ®...
  • Page 56 HP-Eight owner’s manual block diagram MONO HP-Eight Mono Bus MONO INSERT MIX AMP -2dBu ∑ TO MONITOR CIRCUITS (PRE FADER) METER MONO MATRIX MUTE SENDS PEAK PEAK MONO BAL OUT LEVEL +4dBu MONO LEVEL Master rear panel GROUP OUTPU TS STEREO LINE &...
  • Page 57 Mono connectors- rear panel The HP-Eight Mono output connections are located on the Master rear output panel.The output features a male XLR output connector, along with a 1/4” TRS Insert connector.The output is a cross-coupled, balanced XLR jack.
  • Page 58 MONO GROUP GROUP GROUP GROUP GROUP GROUP GROUP GROUP block diagrams Matrix Sends (typical) Matrix Master GROUP HP-Eight Matrix Out (1 of 2 Shown) MATRIX MATRIX MIX AMP ∑ SENDS MATRIX MATRIX LEVEL TO MONITOR LEVEL CIRCUITS +4dBu (PRE FADER)
  • Page 59 Matrix Mix The HP-Eight features a 2-output Matrix section. Each Matrix can consist of a mixture of any of the 11 main mix buses: the 8 audio subgroups, Left, Right and Mono.Each of these main buses feed the 2 matrix buses through individual Matrix Send pots, all located within the Master module, above the fader of the associat- ed bus.These Sends were described in each of the previous sections describing...
  • Page 60 HP-Eight owner’s manual Master Module Top Panel Sections Monitor Section Solo Section Talkback Section Mute Scenes M O N I T O R T A L K B A C K MUTE SCENE MASTERS –3 3– INPUT SOLO...
  • Page 61 Solo bus. Talkback Section The operator can use the built-in facilities of the HP-Eight to talk to the main, group or aux buses in the console. Often times the operator will need to selectively communicate with a per- former, or slate a performance during a recording.The talkback section, with its own microphone...
  • Page 62 HP-Eight owner’s manual block diagrams Module Top Panel Monitoring M O N I T O R S O U R C E SOLO-L ∑ MONITOR SOURCE SOLO SOLO SOLO AUDIO AMPS SOLO-R ∑ SOLO DC –3 3– ALL SOURCES PRE...
  • Page 63 master section Master Section: Monitoring & Control Monitor Section The dedicated Monitor Section allows the user to listen to and view the various signals operating within the Console. This section consists of: the monitor select circuitry and dual LED meters, the Solo system and head- phones.
  • Page 64 HP-Eight owner’s manual block diagrams Module Top Panel M O N I T O R S O U R C E Monitoring SOLO-L ∑ MONITOR SOURCE SOLO SOLO SOLO AUDIO AMPS SOLO-R –3 3– ∑ SOLO DC ALL SOURCES PRE...
  • Page 65 Master Section: Monitoring & Control Solo Operation The HP-Eight is equipped with a stereo solo bus that allows the operator to monitor the various signals within the Console.All Input channels have a PFL (Pre-Fader Listen) switch, Outputs are equipped with an AFL (After-Fader Listen) switch.The PFL circuit on the Inputs allows the operator to properly set the channel’s internal signal level using the chan-...
  • Page 66 HP-Eight owner’s manual Module Top Panel T A L K B A C K block diagrams talkback HP-Eight Talkback Circuits MONO 9-10 +18V INPUT TALKBACK XLR IN TALKBACK ASSIGN SWITCHES MUTE SCENE TALKBACK MASTERS LEVEL LOCATED ON MASTER MODULE...
  • Page 67 Master Section: Monitoring & Control Talkback Section The operator can use the built-in facilities of the HP-Eight to talk to the main, group or aux buses in the console. Often times the operator will need to selectively com- municate with a performer, or slate a performance during a recording.
  • Page 68 HP-Eight owner’s manual Input Rear panel- with power supply DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT DIR OUT INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT PUSH PUSH PUSH PUSH PUSH...
  • Page 69 Power Supply - Internal Internal supply The HP-Eight is equipped with internal power supply, based on a universal input, switch-mode design.As such, you can power the HP-Eight from any world-wide AC mains voltage from 100 to 240 volts, 50 or 60Hz. Input power is approx 200 watts maximum (56-chan console), so power requirements are minimal.A standard IEC...
  • Page 70 HP-Eight owner’s manual external power supply - front DC VOLTAGE STATUS +18V +12V CONSOLE POWER SUPPLY -18V +48V XPS-SW3 NOTE: The 2U rack-mount panel can be removed from the chassis if a stand-alone, floor or desk-top supply is preferred.
  • Page 71 External Power Supply The style and pinout of the DC Connectors on the HP-Eight are the same as the Crest X-Series of consoles (X-Eight, X- Four, X-VCA, X-Monitor), and the existing X-Series supply CAN be used to power the HP-Eight console.The voltage requirements are the same, but the current demands are less with the HP-Eight.
  • Page 72 HP-Eight owner’s manual power supply - dual hookup CONN PINOUT 1 +12V @3A 2 +18V @3A Crest Audio 3 AGND 5 4 3 4 AGND Console Power Supply 5 DGND 6 +48V @.65A Model: XPS-SW3 7 -18V @3A...
  • Page 73 For method #3, the external supply is connected to the HP-Eight in the same way as #2, but the supply is switched OFF. If the internal supply fails, the external supply is then switched on.This requires the operator to manually perform the switch-over.
  • Page 74 +/- 18 volts @ 3 amps (Main analog rails) (Max for 56-chan model) +12 volts @ 3 amps (LED and aux circuits) +48 volts @ .6 amps (Phantom voltage) NOTE: Use ONLY Crest Approved power supplies for the HP-Eight Dimensions: HP-Eight/24 Inches: 46.5 X 28 X 9...
  • Page 75 notes...
  • Page 76 HP-Eight owner’s manual...
  • Page 77 - HP-Eight mono input 48 V 48 V 48 V 48 V 48 V 48 V 48 V 48 V GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY LO CUT...
  • Page 78 HP-Eight owner’s manual...
  • Page 79 - HP-Eight mono input 48 V 48 V 48 V 48 V 48 V 48 V 48 V 48 V GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY POLARITY LO CUT...
  • Page 80 HP-Eight owner’s manual...
  • Page 81 - HP-Eight master module 12V LAMP 12V LAMP H P - E I G H T H I P E R F O R M A N C E 8- B U S C O N S O L E...
  • Page 82 HP-Eight owner’s manual...
  • Page 84 Crest Audio Inc. 16-00 Pollitt Dr. Fair Lawn, NJ 07410 USA HP-Eight owner’s manual Crest P/N D7000034 TEL: 201.909.8700 FAX: 201.909.8744 Version 1.01 July 20, 2004 www.crestaudio.com...

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