dbx 222 Instruction Manual Download Page 1 | Manualshive

Page: 1 / 20

dbx 222 Instruction Manual Download Page 1

1
2
3
...
»

Summary of Contents for 222

Page 1: ...dbr Mod et222 type ll noise reduction system for tape disc INSTRUCTION MANUAL...

Page 2: ......

Page 3: ...o a Tape in Non Encoded Form Using the 222in Conjunction with a Graphic Equalizer Using the 222 with an Equalized Speaker System Copying a dbx Encoded Tape Making a Non Encoded Copy of a dbx Encoded M...

Page 4: ...ct cables from your tape recorder s LINE PLAY or MONITOR outputs to these inputs OUTPUTS Connect cables from these outputs to the RECORD or LINE inputs of your tape recorder lf you are using the 222 o...

Page 5: ...a conventional tape recording i e a non dbx encoded tape from a non encoded program or when you want to play a conventional non encoded tape When set for bypass a red LED above the button is illu mina...

Page 6: ...and sent to the TO PREAMP TAPE INPUT jacks oI the 222 o FOR NO PROCESSING OF THE TAPE Program coming into the 222 s FROM PREAMP TAPE OUTPUT jacks will be sent directly to the TO TAPE RECORDER INPUT j...

Page 7: ...witch to SOURCE and listen to the unencoded program ahead of the 222 To Play a dbx Encoded Tape Recording 1 Set the preamp s TAPE MONITOR switch to TAPE 2 Press in the dbx 222 sPLAY button and play th...

Page 8: ...ng process The Model 222 also may be used to decode special dbx encoded phonograph discs These discs available through leading hi fi and record dealers are up to 40 dB quieter than a conventional disc...

Page 9: ...decoding of non encoded programs 1222in PLAY model can create surging to high volume levels NOTE Never connect any other electronic equipment betnreen the dbx 222 and your tape recorder s inputs or o...

Page 10: ...ape is recorded it can be played back in decoded form by releasing the 222 s dbx DISC button Leave the dbx PLAY button in and the preamp TAPE MONITOR in TAPE position or set its INPUT SELECTOR to TAPE...

Page 11: ...onitor loop and the graphic equalizer is installed between the preamp output and the power amplifier input as shown in Figure 5 Alternately install the graphic equalizer in the preamp s tape monitor l...

Page 12: ...om one tape rscorder to the other Since the encoded tape does not require additional dbx Type ll processing in order to be copied Tape Recorder A Play Line Outputs can be connected directly to Tape Re...

Page 13: ...nputs by using Y adapters Figure 9A 2 Press in the 222 s f ront panel PLAY switch 3 Set the Tape Recorder A to Play mode and Tape Recorder 8 to Record mode A Method Using No Preamp No Special Cables l...

Page 14: ...pe monitor loop follow this procedure 1 Connect Tape Record B s Outputs to an auxiliary input on your preamp 2 Place the tape to be copied on Tape Recorder B lf this is not possible reverse your two t...

Page 15: ...levels indicated above Remember these levels will vary depending on whether your tape recorder has peak reading meters or average reading meters You will f ind that by experimenting with different rec...

Page 16: ...n the preamp s TAPE MONITOR switch is alternately moved between SOURCE and TAPE NOTE Due to changes in frequency response caused by pre emphasis and deemphasis in the dbx encoding process concentrate...

Page 17: ...5 dB 40 Hz to 2O kHz 1 dB at 30 Hz encode decode typical program material tracking SLEW RATE Greater than 10 V microsecond EOUIVALENT INPUT NOISE 85 dBV unweighted 2O kHz bandwidth referenced to 1 V T...

Page 18: ...N ols CpAClTms ME 0 C50V TGLEW MT 5 IMIilTO STLq MM CMIC N 5W q Dts d tc 10 25mlLt55 m 5Fr 0 5Fr0F 1 t5rll ffi i rrfiarER M loocFr 13ttrL e tr5 ME P il ra6 l rLF 5rr s cro ar ru PA la216r 09 0r Ma m P...

Page 19: ......

Page 20: ...Chapel Street Newton MA 02195 Manufaclured und6r one or more of thg following U S patents 3 681 618 3 7 14 462 3 789 143 4 101 849 4 097 767 Oth r patents pending 128O 2 2M 600162 Printed in Japan R 7...

Reviews:

No comments