Studio Master 911. Technical Data. Studio Master Tape

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1 Technical Data Studio Master Tape () / 99 Studio Master 9 Studio tape with wide dynamic range, low print-through and excellent DC noise for analogue recording. Specially designed to fulfill the mechanical requirements of modern multitrack recording. Audio Studio

2 () / 99 Tape speed 76. cm/s Recording head gap length 7. µm Playback head gap length. µm Equalisation 7. µs Reference level nwb/m Tape speed 8. cm/s Recording head gap length 7. µm Playback head gap length. µm Equalisation + 8 µs Reference level nwb/m Tape speed 9. cm/s Recording head gap length 7. µm Playback head gap length. µm Equalisation + 8 µs Reference level nwb/m Output (db) SOL SOL 6 MOL / MTL MTL 6 nwb m MTL MOL / MOL / SOL SOL 6 nwb m MOL / MOL / nwb m MOL / MTL 6 SOL SOL MTL S =. db MTL 6 - S =. db - - S = 6. db - S S THD % - S S THD % - S THD % - S 6 - S 6 - S RB IEC Rec. Bias - - RB IEC, Rec. Bias - - S BN CCIR. - THD. - THD DCN. - THD. - BN CCIR. - BN CCIR. - DCN. - THD DCN. -6 THD. -6 THD BN IEC. -6 BN IEC. -6 BN IEC -6-6 RB IEC Rec. Bias Bias (db) Bias (db) Bias (db)

3 () / 99 Ref. Measurement Conditions Tape speed 76. cm/s 8. cm/s 9. cm/s ips ips 7. ips Record head: Studer Studer Studer. Gap length 7. µm (. mil) 7. µm (. mil) 7. µm (. mil) Track width 6. mm (¹ ₄") 6. mm (¹ ₄") 6. mm (¹ ₄") Playback head: Studer Studer Studer. Gap length. µm (. mil). µm (. mil). µm (. mil) Track width.7 mm.7 mm.7 mm Playback equalisation 7. µs (NAB) +8 µs (NAB) +8 µs (NAB). RLIEC IEC Reference Level at khz nwb/m nwb/m nwb/m. IEC reference tape: batch MT 87 MT 87 A D IEC reference tape bias definition Min. THD Min. THD Min. THD. RBIEC IEC reference bias -. db. db -. db. Rec. Bias Recommended bias setting. db. db. db S Sensitivity drop for recommended bias setting. db. db 6. db.6 Recording Performance Specifications The table belowpresents the main parameters in the recommended bias setting. All figures given represent nominal values. MOL/ Maximum Output Level at khz, THD = %. db. db. db MOL/ Maximum Output Level at khz, THD = %. db 9. db 6. db SOL Saturation Output Level at khz. db. db. db SOL. Saturation Output Level at. khz -. db SOL6 Saturation Output Level at 6 khz 9. db 7. db MTL Maximum Twin tone Level at khz 6. db 6. db -. db. MTL6 Maximum Twin tone Level at 6 khz. db. db -. db. S Relative tape Sensitivity at khz. db. db. db. S Relative tape Sensitivity at khz. db. db. db. S. Relative tape Sensitivity at. khz. db. S6 Relative tape Sensitivity at 6 khz. db. db. THD Third Harmonic Distortion ratio at RLIEC -67. db -6. db -. db. Third Harmonic Distortion factor at RLIEC. %. %.8 %. THDRL+dB Third Harm. Dist. ratio at RLIEC+dB -. db -. db -. db. Third Harm. Dist. factor at RLIEC+dB.7 %. %.9 %. DCN DC noise, weighted, rel. to RLIEC -. db -6. db -6. db BNIEC Bias Noise level (IEC 9; A-weighted) -6. db -6. db -6. db. BNCCIR Bias Noise level (CCIR 68/-weighted) -. db -7. db -9. db. MOL/BNIEC Dynamic range 76. db 7. db 7. db. MOL/BNCCIR Dynamic range 6. db 6. db 9. db. P Print-through (print-effect) 8. db 6. db 7. db.

4 () / 99 Ref. Magnetic Properties HC Coercivity. ka/m Oe. BRS Retentivity mt G. RS Saturation flux nwb/m mm/mm. Orientation longitudinal Physical Properties Base material Polyester Tape widths available 6. /.7 /. /.8 mm ¹ ₄, ¹ ₂,, inch. Tolerances of tape width +. / -.6 mm +. / -. mil. Base thickness. µm.8 mil. Coating thickness 6. µm.6 mil. Total thickness. µm.97 mil. Back coating black Surface resistance of the magnetic coating <, MΩ < GΩ Surface resistance of the back coating < kω Load for elongation of % (F) per 6. mm (¹ ₄") tape N 6 MPa. Breaking tensile strength per 6. mm (¹ ₄") tape N 9 MPa.

5 () / 99 Output level versus Third Harmonic Distortion Ratio at frequency khz and tape speeds ips (76. cm/s), ips (8. cm/s) and 7 / ips (9. cm/s). See also Note.. 9 Third Harmonic Distortion Ratio RL = IEC nwb/m 7 / ips ips ips Output Level (db) Input Level versus Output Level at frequencies khz, khz and 6 khz (. khz at 7 / ips) and tape speeds ips (76. cm/s), ips (8. cm/s) and 7 / ips (9. cm/s). 8 Output Level (db) ips ips khz khz khz 6 khz khz 6 khz Input Level (db) khz khz. khz 7 / ips

6 (6) / 99 References The data in this publication are based on test methods described in IEC Publication 9. References are given only in the case of deviations or particularities.. For the measurements magnetic heads are used whose properties are very similar to the standard reference heads specified in IEC Publication 9-. Record heads with a gap length of 7 µm (. mil) and playback heads with a gap length of µm (. mil) are required.. Playback equalisation on the tape testing equipment is adjusted to provide a flat frequency response of the output voltage when playing back the frequency response section of the relevant calibration tape for the selected tape speed and equalisation.. RLIEC (IEC reference level): The reference level is obtained when playing back the reference level section of the the relevant IEC calibration tape for the selected tape speed. The reference level corresponds to a magnetic flux in the tape per metre trackwidth of nwb/m.. IEC reference tape bias definition: Using the relevant IEC reference tape and heads according to Ref.., the bias current providing the minimum third harmonic distortion ratio for a khz signal recorded at the reference level is the reference bias setting.. RBIEC (IEC reference bias): These data represent the ratio of the bias for the relevant IEC reference tape (see Ref..) to the recommended bias for the tape under test (see Ref..6)..6 S (Sensitivity drop for recommended bias setting): Operationally, the recommended bias is set while recording an input signal of khz at db. Based on the peak of the sensitivity curve S, the bias is increased until the playback level is reduced by the given value S.. MTL and THD (Maximum Twin tone Level and Third Harmonic Distortion): For MTL measurement the frequency distance of the primary tones is Hz. During the THD measurement the playback output is held both at IEC reference level (see Ref..), and at the increased output level RL+...dB. From the corresponding curves the distortion factor can be obtained directly as a percentage of the output level. (The dbscale can only be used for RLIEC as the output level. In order to derive the distortion ratio in db for increased output levels at RL+...dB, this output level has to be subtracted from the value read in db. These resulting values in db are given in the table).. S (Sensitivity): All the sensitivity curves are measured using a constant record current, which is necessary to obtain an output level of approximately db for a khz input signal. A record equalisation is not used. The distances between the sensitivity curves thus reflect the record equalisation necessary to achieve a flat frequency response. The values given in the table represent the sensitivity of the tape under test at the recommended bias. As relative sensitivity values they refer to the the corresponding values of the relevant IEC reference tape at its own reference bias corresponding to the definition in Ref.... BN (Bias Noise level): The index...iec refers to measurement using the weighting A-filter specified in IEC Publication 6, while...ccir refers to the use of the weighting filter and quasi peak meter specified in CCIR MOL/BN (Dynamic): The signal to bias noise level ratio MOL/BN results from the difference of the maximum output level MOL and the bias noise level BN. Regarding the index IEC or CCIR respectively see Ref.... P (Print-through): Print-through is the ratio of a reference level recording to the highest signal level transferred to the next tape layer after hours storage at C (68 F). The magnetic measurements are made by means of a magnetic field having a strength of ka/m (, Oe) in order to obtain a practically saturated magnetisation in the magnetic material of the sample.. HC (Coercivity): The coercitive magnetic field strength is required to reduce the longitudinal magnetisation in the magnetic material to zero after the sample has been magnetised to saturation.. BRS (Retentivity): Retentivity is the remaining magnetic flux density in the magnetic material when the magnetising field is reduced to zero after the sample has been magnetised to saturation.. RS (Remanent, or residual saturation flux): the so-called "residual saturation flux" is the retentivity multiplied by the thickness of the magnetic coating.. Tape width and its tolerances correspond to the specifications given in IEC Publication 9-.. Thicknesses: Values given are mean averages.. Yield strength (F) and breaking tensile strength: According to the methods specified in IEC publication 9- the force necessary to produce % elongation, or to break the tape using a test sample length of mm and an elongation rate of mm/min. The value given in MPa results from the measured strength related to the cross section of the tape sample. The strengths increase a little less than proportionally with tape width. All data given in the specification are subject to change without prior notice due to technical progress. EMTEC Magnetics GmbH P.O.B Ludwigshafen, Germany Phone +9 ()6 9 - Fax +9 ()6 9-7 wiltrud.gambato@emtec-group.com EMTEC Magnetics GmbH European Multimedia Technologies Kaiser-Wilhelm-Straße 679 Ludwigshafen, Germany contact@emtec-group.com

Studio Master 468. Audio Studio

Studio Master 468. Audio Studio Technical Data Studio Master Tape Studio Master 468 Audio Studio High bias studio tape for use in music studios, broadcasting and archives. for multitrack and mastering operation. Offering excellent dynamic