Measurement's report Dexp BT212 Wire test and graphs - Reference Audio Analyzer

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Navigating through reports of Dexp BT212 (Click to open)
Dexp BT212 is available in reports and services. You are in a professional report.

Information for entry level users

reports for a newbie (Headphones)
    The automatic selection of the optimal AMP models

    Information for all

    Versus of characteristics

    Information for professionals
    reports for a pro (Headphones)
      WireBluetooth
          Comparison of on-line graphs


          Quick jump to the schedules in this pro report: BT212 Wire

              Test report - general data of Dexp BT212 Wire headphone

              Frequency response, Impedance, Frequency response with standard AMPs


              Graphics setting view
              Frequency band, Hz:
              Range, dB:

              Perception of headphone frequency response curves of equal loudness ISO 226-2009


              General results
              General results Dexp BT212 Wire
              Channel
              Summary (Right + Left)
              Sensitivity average in band from 100 Hz to 10 kHz, dB/V
              118,2
              Impedance average in band from 40 Hz to 15 kHz, ohm
              36,2
              For 94,0 dB SPL need, VRMS
              0,062
              For 94,0 dB SPL need, mW
              0,105

              The table shows a most important technical characteristics of Dexp BT212 Wire

              *Center channel headphone is received by averaging between left and right channels



              Test conditions
              • Type of headphones: On-ear
              • Measurements were performed on the stand:
                • with on the simulator of human head with ears HDM-X with natural acoustic damping

              

              Sensitivity of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Channel:




              Table of measured characteristics
              Sensitivity Dexp BT212 Wire
              Channel
              Left
              Right
              Sensitivity average in band from 100 Hz to 10 kHz, dB/V
              117,2
              118,9
              Sensitivity at 500 Hz at 1 V, dB
              123,0
              120,9
              Sensitivity at 500 Hz at 1 mW, dB
              108,4
              106,5
              Sensitivity at 1000 Hz at 1 V, dB
              119,9
              127,4
              Sensitivity at 1000 Hz at 1 mW, dB
              105,3
              113,0

              The sensitivity was calculated by data from the measuring stand HDM-X


              Frequency response of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Range, dB:
              Channel:




              Table of measured characteristics
              Frequency response Dexp BT212 Wire
              Channel
              Left
              Right
              Variation in frequency response in band from 100 Hz to 10 kHz, dB
              -18,32, 7,10
              -19,29, 8,50

              Impedance of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Channel:




              Table of measured characteristics
              Impedance Dexp BT212 Wire
              Channel
              Left
              Right
              Impedance average in band from 40 Hz to 15 kHz, ohm
              35,2
              37,3
              Resistance at 500 Hz, ohm
              34,8
              36,4
              Resistance at 1000 Hz, ohm
              34,8
              36,5
              The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
              389,0
              424,0
              The minimum value in band from 40 Hz to 15 kHz, ohm
              34,4
              35,1
              The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
              88,4
              52,8
              The maximum value in band from 40 Hz to 15 kHz, ohm
              37,7
              41,0

              Electric phase of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Range, degree:
              Channel:




              Table of measured characteristics
              Electric phase Dexp BT212 Wire
              Channel
              Left
              Right
              Average variation in phase response in band from 20 Hz to 20 kHz, degree
              2,7
              2,9
              The minimum value in band from 20 Hz to 20 kHz at frequency, Hz
              114,5
              77,1
              The minimum value in band from 20 Hz to 20 kHz, degree
              -1,9
              -2,7
              The maximum value in band from 20 Hz to 20 kHz at frequency, Hz
              19741,4
              19741,4
              The maximum value in band from 20 Hz to 20 kHz, degree
              17,0
              17,5

              Frequency response of Dexp BT212 Wire headphone when connected to amplifiers with constant output impedance


              Graphics setting view
              Frequency band, Hz:
              Range, dB:
              Channel:




              Table of measured characteristics
              Frequency response of headphone Dexp BT212 Wire with amplifier with a constant impedance
              Channel
              Left
              Right
              Variation in FR from AMP 0 ohm in band 100 Hz to 10 kHz, dB
              -18,32, +7,10
              -19,29, +8,50
              Variation in FR from AMP 10 ohm in band 100 Hz to 10 kHz, dB
              -18,28, +7,20
              -19,23, +8,48
              Variation in FR from AMP 20 ohm in band 100 Hz to 10 kHz, dB
              -18,25, +7,27
              -19,20, +8,47
              Variation in FR from AMP 50 ohm in band 100 Hz to 10 kHz, dB
              -18,21, +7,37
              -19,14, +8,46
              Variation in FR from AMP 100 ohm in band 100 Hz to 10 kHz, dB
              -18,18, +7,45
              -19,10, +8,45
              Variation in FR from AMP 300 ohm in band 100 Hz to 10 kHz, dB
              -18,15, +7,52
              -19,06, +8,44

              Deviation of frequency response of Dexp BT212 Wire headphone when connected to amplifiers with constant output impedance


              Graphics setting view
              Frequency band, Hz:
              Range, dB:
              Channel:




              Table of measured characteristics
              Variation in frequency response with amplifiers with constant output resistance from Dexp BT212 Wire
              Channel
              Summary (Right + Left)
              With amplifier impedance at 10 ohm in band 20 Hz to 20 kHz, dB
              0,2
              With amplifier impedance at 20 ohm in band 20 Hz to 20 kHz, dB
              0,4
              With amplifier impedance at 50 ohm in band 20 Hz to 20 kHz, dB
              0,6
              With amplifier impedance at 100 ohm in band 20 Hz to 20 kHz, dB
              0,8
              With amplifier impedance at 300 ohm in band 20 Hz to 20 kHz, dB
              0,9

              *Center channel is received by data averaging between the left and right channels


              Frequency response of Dexp BT212 Wire headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


              Graphics setting view
              Frequency band, Hz:
              Range, dB:
              Channel:




              Table of measured characteristics
              Frequency response with an amplifier with zero output resistance and raising of output resistance in low frequencies from Dexp BT212 Wire
              Channel
              Left
              Right
              Variation in frequency response in band from 100 Hz to 10 kHz, dB
              -18,24, 6,65
              -19,21, 8,56

              Deviation of frequency response of Dexp BT212 Wire headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies


              Graphics setting view
              Frequency band, Hz:
              Range, dB:
              Channel:




              Table of measured characteristics
              Variance of frequency response Dexp BT212 Wire depending on the total output resistance of the amplifier with zero resistance and a rise of resistance at low frequencies
              Variance frequency response at the frequency 20 Hz, dB
              -4,8
              Variance frequency response at the frequency 40 Hz, dB
              -1,9
              Variance frequency response at the frequency 80 Hz, dB
              -0,7

              Perception of headphone frequency response curves of equal loudness ISO 226-2009 of Dexp BT212 Wire headphone


              Graphics setting view
              Channel:




              Table of measured characteristics
              Perception of headphone frequency response curves of equal loudness ISO 226-2009 from Dexp BT212 Wire
              Channel
              Summary (Right + Left)
              From level 48 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,5, +18,4
              From level 36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +15,3
              From level 24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +12,2
              From level 12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +9,2
              From level 0 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +6,5
              From level -12 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +7,3
              From level -24 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +8,0
              From level -36 dB at 72 dB SPL in band 100 Hz to 10 kHz, dB
              -18,4, +8,6

              *Center channel is received by data averaging between the left and right channels


              Impulse response of Dexp BT212 Wire headphone


              Graphics setting view
              Time, ms:
              Channel:




              Impulse Response Envelope (ETC - Energy Time Curve) of Dexp BT212 Wire headphone


              Graphics setting view
              Time, ms:
              Range, dB:
              Channel:




              Step response of Dexp BT212 Wire headphone


              Graphics setting view
              Time, ms:
              Channel:




              

              QSD / Watterfall of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Channel:



              Delta QSD / Delta Watterfall of Dexp BT212 Wire headphone


              Graphics setting view
              Frequency band, Hz:
              Channel:



              


              On-line comparison and selection services for Dexp BT212 Wire

              Comparison the frequency response

              Impedance

              Electric phase

              Compare the frequency response of the bundles

              Comparison of basic characteristics: Sensitivity, Impedance

              Determination of the required voltage level from a headphone amplifier for BT212 and comparison with other models A additional analytics of compatibility with specific amplifiers

              Comparing changes in frequency and sound pressure as a function of the applied voltage and a impedance of an amplifier

              Headphone square wave comparison at the required frequency

              The automatic selection of the optimal AMP models from BT212




              More detailed

              Measurements of Dexp BT212 Wire were carried out by Roman Kuznetsov on the hardware-software complex RAA.

              The Dexp BT212 Wire test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.

              I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a source amplifier and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




              Kuznetsov Roman
              Founder of RAA



              Known by the nickname romanrex
              Аuthor of articles iXBT.com



              Information for Authors. You can freely use the graphics in your articles with a link to us.




              Dexp BT212 is available in reports and services. You are in a professional report.

              Information for entry level users

              reports for a newbie (Headphones)
                The automatic selection of the optimal AMP models

                Information for all

                Versus of characteristics

                Information for professionals
                reports for a pro (Headphones)
                  WireBluetooth
                      Comparison of on-line graphs




                      Quick jump to the schedule in this report: Wire






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