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BOSS DR RYTHM DR-55

 

FACTS

Model

Boss Dr Rhythm DR-55

Type

Drummachine

Synthesis

Analog

Manufactured

1979

Number

?

Our Serial

079200

Polyphony

4 voices

Oscillators

4 VCO

Filter

VCF

Memory

8 patterns with 3 different hihat (16th, 8th or no hihat)

Keyboard

 

Sound

Smooth analog

Good for

Analog drum sounds

Less good for

Acoustic drum sounds

Miscellaneous

No MIDI, but possibility to sync via DBS

 

DESCRIPTION

The original for all Dr Rhythm machines! Boss Dr Rhythm DR-55 was the first drummachine

from Roland with the name Boss 1979. The retail price list for a Dr-55 was back in 1st of

January 1982 $195. It has four sounds, one mono output and can be controlled with control

pulses from outside (DBS or CSQ). DR-55 is powered by4 1,5 battery (6V).

Dr-55 including three programmable sounds:

- Snare

- Rimshot

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Dr Rhythm DR-55 - Sound Of Music

file:///G|/MUSIQUE/notices/Manuels à assembler/Dr Rhythm DR-55 - Sound Of Music.htm (1 sur 4) [15/12/2003 01:18:42]

Summary of Contents for DR-55

Page 1: ...ossibility to sync via DBS DESCRIPTION The original for all Dr Rhythm machines Boss Dr Rhythm DR 55 was the first drummachine from Roland with the name Boss 1979 The retail price list for a Dr 55 was...

Page 2: ...o sixteen steps with each step loaded one at a time for quick and accurate loading The three rhythm sounds are bass drum snare drum and rim shot A standard pattern hi hat sound can also be added to ea...

Page 3: ...hm is ready to use right out of the box 1 Set the controls as shown in the drawing 6 to 1 8 note hi hat 7 to A B Variation 8 to play mode 2 Press START 11 to start the rhythm and STOP 12 to stop it Dr...

Page 4: ...to sixteen steps or twelve steps Rhythm patterns are written into memory separately for each sound one step at a time for one or two measures For the purposes of writing rhythm patterns the patterns s...

Page 5: ...e to turn the DR 55 off NOTE The POWER switch function is interlocked to the OUTPUT jack 14 If there is no connection at the OUTPUT jack 14 the DR 55 can not be turned on 2 TEMPO Control Controls the...

Page 6: ...SQ 100 will advance one step at each point where an accent is programmed If the position of RHYTHM SELECT 10 is changed at the end of each measure twelve measures of different melody rhythm can be pla...

Page 7: ...the POWER switch 1 remove the screw and open the lid 2 Being careful of the wires remove the battery case from the compartment and un snap the connector from the battery case 3 Replace the old batteri...

Page 8: ...BOSS DR RYTHM DR 55 Standard Rhythm Patterns Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 rythm patterns htm 1 sur 2 15 12 2003 01 19 34...

Page 9: ...C 9 RHYTHM SELECT l 8 10 START Button 11 STOP Button 12 Jacks OUTPUT Jack 14 DBS Jack 15 output pulse 5V 8ms CSQ Jack 16 output pulse 4V 10ms FOOT SWITCH Jack 13 for FS 1 Power Supply 6V dc Dimensions...

Page 10: ...Back to Previous Page On to the Next Page Back To the Index Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 specification htm 2 sur 2 15 12 2003 01 20 19...

Page 11: ...Back to Previous Page On to the Next Page Back To the Index Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 rythm patterns htm 2 sur 2 15 12 2003 01 19 34...

Page 12: ...100M Synthesizer A percussion voice can be synthesized with the System 100M Synthesizer and triggered from the CSQ jack 16 In this way another voice can be added to the DR 55 rhythm patterns Dr Rhyth...

Page 13: ...he CSQ 100 Digital Sequencer for percussion voices with pitch or tone color changes Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 devices 05 htm 3 sur 4 15 12...

Page 14: ...Back to Previous Page On to the Next Page Back To the Index Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 devices 05 htm 4 sur 4 15 12 2003 01 15 33...

Page 15: ...erns are played one after the other in series A B A B etc In the WRITE mode The VARIATION switch 7 determines which variation memory A or B the pattern will enter when loaded At AB two measures can be...

Page 16: ...ernal devices with the DR 55 DBS Outputs a pulse for each step in the rhythm pattern CSQ Outputs a pulse at each step where an accent is programmed When this jack is used accents no longer occur in th...

Page 17: ...ight it indicates that the measure has not been completely loaded Check by playing the rhythm or write the rhythm again from the beginning 5 Repeat Steps 3 and 4 above for the other two sounds In the...

Page 18: ...oduction fill ins breaks etc into the various memory slots in such a way that the rhythm part for an entire composition could be produced non stop by changing the RHYTHM SELECT 10 and VARIATION 7 swit...

Page 19: ...Back to Previous Page On to the Next Page Back To the Index Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 write mode 03 htm 4 sur 4 15 12 2003 01 13 19...

Page 20: ...VARIATION 7 and RHYTHM SELECT 10 controls to see what effect they have These controls are covered in detail in the following pages NOTE Do not change the position of the MODE switch 8 Back to Previous...

Page 21: ...On to the Next Page Back To the Index Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 features 01 htm 2 sur 2 15 12 2003 01 12 13...

Page 22: ...two 8th inch jacks triggers DBS Jack 1 8 pulse 5v 8ms used on Roland gear that takes triggers CSQ Jack 1 8 pulse 4v 10ms used by Roland stuff that isn t made any more the 100M sequencer CSQ Computer S...

Page 23: ...ine from Keyboardmuseum DR 55 Back Panel Manual online SAMPLES Complete kit from DR 55 with kick snare rimshot hihat File File information Boss Dr Rhythm DR 55 Wav 44 1 K mono 30 Kb Dr Rhythm DR 55 So...

Page 24: ...cations Hyperreal org Review DR 55 Keyboard Magazine June 1980 Sonicstate User Reviews To startpage Dr Rhythm DR 55 Sound Of Music file G MUSIQUE notices Manuels assembler Dr Rhythm DR 55 Sound Of Mus...

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