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Peavey LT Series manual

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Table of contents for the manual

  • Page 1

    L T/ST Power Amplifier Owner’ s Manual[...]

  • Page 2

    1 Sa ve the carton and packing materials! Should you ev er need to ship the unit, use only the original factor y packing. For replacement packaging, call Crest Audio’s Customer Ser vice Depar tment directl y . 2 Read all documentation befor e operating your equipment. Retain all documentation for future reference. 3 F ollo w all instructions prin[...]

  • Page 3

    p. 1 table of contents 1 2 3 4 5 6 7 how to use this manual p.2 intr oduction p.3 installation p.5 unpacking mounting cooling and ventilation pow ering maintenance featur es over view p.9 fr ont panel rear panel operation modes p.15 stereo parallel bridged connections p.17 input output safety p.21 tour class pr otection precautions user responsibil[...]

  • Page 4

    p. 2 L T / ST owner’ s manual how to use this manual 1 conventions terms official Crest Audio features and each indicator or control on the amplifier will a ppear as: ter ms actions specific actions or selections the user can ex ecute will appear as: actions tasks are br ok en down into steps 1 2 3 warnings indicators tips see see— refers to ot[...]

  • Page 5

    p. 3 intr oduction 1 welcome Congratulations on your pur chase of a new L T / ST Series professional po wer amplifier and thank y ou for y our con- fidence in Crest Audio products. Y ou are among the gr owing n umber of audio pr ofessionals who ha v e made Crest Audio one of the world’ s leading suppliers of prof essional and commercial/industria[...]

  • Page 6

    [...]

  • Page 7

    p. 5 installation 2 unpacking mounting cooling and ventilation powering maintenance / what to do with the shipping carton / pr oper rack-mounting technique / keeping the amplifier cooled / r equired AC line voltages / r outine maintenance practices[...]

  • Page 8

    L T / ST owner ’ s manual p. 6 installation 2 unpacking Please inspect the amplifier carefull y immediately after unpacking. If you find any dam- age, notify your supplier/dealer immediately . Only the shipper ma y file a damage claim with the carrier for damage incur red during shipping. Be sur e to sa v e the car ton and all packing materials f[...]

  • Page 9

    2 p. 7 installation Make cer tain that there is enough space around the front and rear of the amplifier to allo w the heated air to escape. When mounting in a rack, tr y to avoid using doors or cov er s on the front and rear of the enclosure; the exhaust air must not be impeded suggestion In racks with closed backs allow at least one stan- dard-rac[...]

  • Page 10

    [...]

  • Page 11

    p. 9 featur es overview 3 front panel rear panel / location of connectors and contr ols / leg end of panel symbols[...]

  • Page 12

    p. 10 L T / ST owner ’ s manual featur es overview 3 L T / ST shown 1 2 3 4 7 5 6 9 1 2 3 4 7 5 6 9 8 8[...]

  • Page 13

    p. 11 featur es overview 3 front panel 1 Rack Mounting Ears T w o front-panel mounting holes ar e pr ovided on each mounting ear . 2 Channel Le vel atten uators T w o input attenuators adjust lev el for their r espectiv e amplifier channels. In Bridged Mono and Parallel modes, the channel A attenuator contr ols ov erall signal lev el (see r ear pan[...]

  • Page 14

    p. 12 rear panel 1 IEC po w er connector Accepts a standard IEC terminated po wer cable 2 Break er Resettable cir cuit break er - no fuses are used. Break er can trip due to a pow er surge or ov er -v oltage condition. If it trips once, reset it. If it continues to trip , the amplifier ma y need ser vicing. 3 Fan The fan operates continuously while[...]

  • Page 15

    p. 13 featur es overview 3 rear panel 4 Output connections Speak ers can be connected via the high curr ent binding posts and the industr y-standar d Speak on (NL-4) connectors. Binding posts: One pair (Red- hot, Black- gr ound) per channel. Speak ons - One connector for each channel. In Bridged Mono mode, the Speak on connector for Channel A is us[...]

  • Page 16

    [...]

  • Page 17

    p. 15 operation modes 4 stereo parallel bridged / choosing the appr opriate mode / switching betw een operation modes / special considerations when using bridg ed mode[...]

  • Page 18

    p. 16 mode selection The three-position, recessed Mode Select switch (located on the r ear panel) configures the amplifier f or Stereo , Parallel or Bridged mode. Amplifiers are factor y-configur ed for Ster eo mode. Shut the amp off befor e changing modes. stereo In Stereo mode, both channels operate independently , with their input atten- uators [...]

  • Page 19

    p. 17 connections 5 input XLR 1/4 ” TRS output Phoenix 3 pin / pr oper wiring schemes for connectors: speakon binding post / corr ect signal paths: stereo , parallel and bridged[...]

  • Page 20

    p. 18 L T / ST owner ’ s manual connections 5 inputs L T / ST amplifiers are configur ed standard with pin 2 hot on XLR inputs. outputs Speak ers are connected using the high-cur rent fiv e-wa y binding posts or speak on connectors, or both. see — operation modes V er y high current is availab le at the outputs. Please connect your output cable[...]

  • Page 21

    p. 19 connections 5 stereo mode five-wa y binding post connectors parallel mode five-wa y binding post connectors bridged mono mode five-wa y binding post connectors[...]

  • Page 22

    p. 20 stereo mode speak on output connectors parallel mode speak on output connectors bridged mono mode speak on output connectors Speak er + to PIN 1+ Speak er - to PIN 2+ L T / ST owner ’ s manual connections 5[...]

  • Page 23

    p. 21 safety 6 user responsibility speaker protection T ourClass / the o wner ’ s r ole in amplifier safety / pr otecting y our speak ers / description of T ourClass pr otection featur es[...]

  • Page 24

    p. 22 L T / ST owner ’ s manual safety 6 speaker protection All loudspeak ers ha v e electrical, thermal and physical limits which m ust be obser v ed to pre- vent damage or failur e. Cone or compression drivers can be damaged (sometimes to the point of failure) fr om excessive pow er , low frequencies applied to high fr equency driv ers, sev ere[...]

  • Page 25

    p. 23 safety 6 T ourClass ® pr otection Just lik e Crest Audio ’ s highly acclaimed Pro series amps, L T and ST amps incorporate T ourClass pr otection featur es. Derived fr om Cr est Audio ’ s extensive experience with the world ’ s largest sound rental companies, the T ourClass gr oup of cir cuits sets the industr y standard f or assured p[...]

  • Page 26

    [...]

  • Page 27

    p. 25 service and support 7 / when to g et suppor t / wa ys to contact Crest Audio support contact us[...]

  • Page 28

    p. 26 support In the unlik ely e vent that y our amplifier dev elops a pr oblem, it must be returned to an authorized distributor , ser vice center or shipped dir ectly to our factor y . T o obtain service , contact your near est Crest Audio Service Center , Distributor , Dealer , or any of the w orldwide Cr est Audio offices. For those with Intern[...]

  • Page 29

    p. 27 Stereo po wer 8 Ω 4 Ω 2 Ω Bridged mono pow er 8 Ω 4 Ω Maximum output v oltage rms each channel Frequency response 1W @ 8 Ω Po wer bandwidth @ rated power Damping Factor Input cmrr Input sensitivity for full rated output pow er Input im pedance Hum and noise Crosstalk Class Circuit breaker rating 12 0 Va c Circuit breaker rating 23[...]

  • Page 30

    p. 28 A A TTENUAT OR OUTPUT ST AGE OUTPUT RELA Y 1 3 2 1 3 2 OUTPUT ST AGE OUTPUT RELA Y MODE SWITCH A B C A: STEREO B: P ARALLEL C: BRIDGE B A TTENUAT OR Channel A Inputs Phoenix Combicon 1/4” TRS Female 3-Pin XLR Phoenix Combicon 1/4” TRS Female 3-Pin XLR Channel A Outputs 5-Way Binding Posts Neutrik Speakon 5-Way Binding Posts Neutrik Speako[...]

  • Page 31

    p. 29 str anded cab le length 0.3 mm 2 0.5 0.75 1.5 2.5 4.0 2.9% 1.74 1.16 0.58 0.35 0.22 5.6% 3.4 2.3 1.16 0.70 0.44 10.8% 6.7 4.5 2.3 1.39 0.87 0.5 mm 2 0.75 1.5 2.5 4 6 4.3% 2.9 1.45 0.87 0.55 0.37 8.2% 5.6 2.9 1.74 1.09 0.73 15.5% 10.8 5.6 3.4 2.2 1.45 0.5 mm 2 0.75 1.5 2.5 4 6 8.24% 5.6 2.9 1.74 1.09 0.73 5.5% 10.8 5.6 2.9 1.74 1.09 28% 19.9 1[...]

  • Page 32

    p. 30 stranded cable lengt h 18 AW G 16 14 12 10 0.81% 0.51 0.32 0.20 0.128 1.61% 1.02 0.64 0.40 0.25 3.2% 2.0 1.28 0.80 0.51 18 AW G 16 14 12 10 1.61% 1.02 0.64 0.40 0.25 3.2% 2.0 1.28 0.80 0.51 6.2% 4.0 2.5 1.60 1.01 18 AW G 16 14 12 10 8 6.2% 4.0 2.5 1.60 1.01 0.60 11.9% 7.7 5.0 3.2 2.0 1.20 22% 14.6 9.6 6.2 4.0 2.4 18 AW G 16 14 12 10 8 11.9% 7[...]

  • Page 33

    [...]

  • Page 34

    http://www .crestaudio .com L T/ST Owner's Manual V ersion 1.3 03/21/02[...]