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STONES SOUND STUDIO
RIBBON SPEAKER KIT
MANUAL
260C
360
260
Designed
By
Russell Storey
(Version V6)
19/1/08

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Summary of Contents for Stones Sound Studio Ribbon 260

  • Page 1 STONES SOUND STUDIO RIBBON SPEAKER KIT MANUAL 260C Designed Russell Storey (Version V6) 19/1/08...
  • Page 2 Loudspeaker Description and Building Instructions...
  • Page 3: Table Of Contents

    Building Instructions Crossover Board (Bottom) 260-260C 360…………………………………………………………..11 Woofer (Bottom) 260 260C 360……………………………………………………………………...11 Fountek Jp3.0 Ribbon Tweeter………………………………………………………………………11 Ribbon 260 360 Fronts………………………………………………………………………………..11 Woofer (top) 260 260C………………………………………………………………………………11 Ribbon 260C Centre Speaker………………………………………………………………………..11 Location of Crossover PCB and Wiring 260 360 260C…………………………………………...12 Testing the Finished Speaker Box …………………………………………………………..13...
  • Page 4: Loudspeaker Description

    Loudspeaker Description The Ribbon Speaker Performance Here at Stones Sound Studio we have engineered Super High Definition Ribbon Speakers to reproduce all analogue and digital stereo programs including CD, HD-DVD,SACD analogue turntables and multi channel A/V home theatre sound systems The 260 260c &...
  • Page 5: Ribbon Speaker Kit Design Concept

    Loudspeaker Description Ribbon Speaker Kit Design Concept The aim of a good high definition loudspeaker is to reproduce any instrument or sound as realistically and as close as possible to the original sound source .While these attributes are achievable to a degree using a standard woofer /soft, dome tweeter combination an even better solution is a woofer /ribbon tweeter loudspeaker.
  • Page 6: The Ribbon Speaker Enclosures

    Loudspeaker Description The Ribbon Speaker Enclosures The Bass Reflex enclosure was developed using LEAP 5 wave diffraction analyzer and FFT vibration analysis An Extended Bass Shelf ( EBS) / Butterworth low pass filter response was implemented with the enclosure to ensure optimum low extended bass and fast transit speed from the woofers The Enclosures feature flush mounted ribbon tweeter, rear port and are manufactured from 18mm MDF The Front Baffle is 36mm thick laminated MFD which ensures minimum movement of driver chassis and maximum...
  • Page 7: Enclosure Rear Port & Port Flare

    Loudspeaker Description Enclosure Rear Port • A rear port was employed in the ribbon speaker design to ensure a reduction of overall transducer distortion and cross modulation generated by front ports. With a front port a form of speaker (low frequency) distortion and cross modulation is generated by the chamber compressed air exiting the port out of phase with the woofer creating (modulation) interference of the woofer cone and ribbon diaphgram .This interference of the woofer cone occurs at medium to high playback levels (port velocity)
  • Page 8: Crossover 260 260C 360

    Loudspeaker Description Crossover 260 260C 360 The Linkwitz Riley (Bessel /Butterworth) crossover unit was developed to enable good linear phase and minimum THD distortion through the pass band and over lap regions of both the woofer and ribbon tweeter whilst providing wide dynamic range and excellent low mid and high level continuity of detail .
  • Page 9: Loudspeaker Connection

    Loudspeaker Connection 260 260C 360 Speaker Cable Wiring (Standard) Connect the speaker cables to the bottom pair of terminals on the rear speaker terminal cup for a standard connection to your amplifier...
  • Page 10: Speaker Cable (Bi Wiring)

    Loudspeaker Connection 260 260C 360 Speaker Cable (BI Wiring) two sets The term bi-wire simply refers to the fact that you will be running of loudspeaker cables from your amplifier to each of your speakers. rear Remove the 2 links from the speaker terminal cup internal Cut links (1,2,) on the...
  • Page 11: Building Instructions

    Building Instructions 260 260C and 360 Installation of the Woofer & Crossover PCB 1) Crossover Board (Bottom) 260-260C 360 Fit Velcro Tabs to underside of the crossover PCB (see p17) Fit crossover assembly through lower woofer hole and secure with 5 Velcro tabs onto the felt at bottom of speaker box (see p18) Fit speaker 4 terminal plate through felt and rear panel mounting hole then secure with 4 MDF countersunk wood screw(see p19 p20)
  • Page 12: Location Of Crossover Pcb And Wiring 260 360 260C

    Building Instructions Location of Crossover PCB and Wiring...
  • Page 13: Testing The Finished Speaker Box

    Building Instructions 260 260C and 360 Testing the Finished Speaker Box Bass Speaker phase test (dc only).is all that is normally required to test the pre built crossover wiring and speakers Connect a 1.5v battery with a pair of clip leads across the bottom pair of speaker terminals (+ve to +ve ) RED and ( – ve to –ve) BLACK.
  • Page 14: Testing The Speaker Box Photos 2 &3

    Building Instructions 260 260C and 360 Testing the Speaker Box Photos 2 &3 Photo 2 Bass Speaker Battery phase test (dc only) Photo 3 DMM ohm measurement of the 260-260C speaker Crossover Network Resistance (dc only) DMM ohm measurement 3.9 ohms 260-260C speaker DMM ohm measurement 6 ohms 360 speaker...
  • Page 15: Installation Photographs

    Building Instructions 260 260C and 360 Installation Photographs Crossover PCB assembly includes pre-wired (soldered) 4 terminal speaker cup...
  • Page 16 Crossover PCB assembly with 260 enclosure...
  • Page 17 Fit crossover assembly through lower woofer hole and secure with the Velcro tabs onto the felt at bottom of speaker box...
  • Page 18 Fit crossover assembly through lower woofer hole and secure with six Velcro tabs...
  • Page 19 Fit speaker 4 terminal cup through felt and rear panel mounting hole then secure with 4 MDF countersunk wood screw...
  • Page 20 Note: Fit speaker 4 terminal cup so terminal post faces toward the top of the box...
  • Page 21 Speaker push on connector cables fitted through front speaker mounting whole cutouts...
  • Page 22 260 FRONT showing ribbon tweeter and Woofer with 3mm Allen key...
  • Page 24 JP3.0 Ribbon Terminal polarity Models 260 and 360 ( top view ) 260 C CENTRE ribbon tweeter terminals...
  • Page 26 260 C CENTRE showing peerless bass/mid connections...
  • Page 27 260 C CENTRE ribbon tweeter with protection label...
  • Page 28: Fully Assembled 260 260C

    Fully Assembled 260-260C 260C Centre...
  • Page 29: Fully Assembled 360

    Fully Assembled...
  • Page 30: Recommended Loudspeaker Room Location

    Recommended Loudspeaker Room Location...
  • Page 31 NOTES 260 260C 360 Enclosure Felt Damping Use Furniture Felt Pad 540gms / Kg around 7mm thickness Available in Australia from Home wrap http://www.homewrap.com.au/...
  • Page 32 NOTES 260 260C 360 Enclosure Felt Damping Application Cut Furniture Felt Pad to size to fit box panels Fit Furniture felt pad with staple gun or Water based vinyl tile glue Fold Furniture felt pad over bracing ribs Fit Furniture felt pad to top bottom left right and rear panels of cabinet Fit 2 pcs of Furniture felt pad to real panel only Fit Furniture felt pad TWEETER cover to inside wall front baffle cabinet with air tight seal...

This manual is also suitable for:

Ribbon 260cRibbon 360

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