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NRC Measurements: Dutch & Dutch 8c Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 April 2019

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Measurement notes: The Dutch & Dutch 8c is an active loudspeaker, so sensitivity, impedance, and electrical phase measurements are not applicable, and, therefore, are not shown. Since the 8c relies uses digital signal processing (DSP), the user can customize its output for a room through the supplied app. In installations where the rear of the speaker is within 10-80cm of the front wall, the user will use the app to select Boundary mode and input the appropriate distance each speaker is from the wall; otherwise, the Free-Standing mode should be used. Since an anechoic chamber is a reflection-free environment -- effectively replicating a wall-free, wide-open space -- all measurements were done in the Free-Standing mode.

Because the 8c has two rear-firing woofers, their full contributions to the overall response are not well reflected in the frequency-response measurements done from in front of the speaker; therefore, we added an additional frequency-response measurement with the speaker turned 180 degrees, the back thereby facing the five measurement microphones, to better capture the woofers’ outputs. In addition, the woofers’ outputs partially “wrap around” the cabinet, resulting in them interfering with the midrange output in an anechoic chamber when measured from the front, so we also produced an additional Listening Window frequency-response measurement with the woofers turned off.

Setup

Microphone measuring position: between tweeter and midrange
Grille: n/a (none available)

Frequency response and sensitivity

Sensitivity: n/a

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Additional measurement to capture output of woofers

Frequency response

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Additional measurement: woofers turned off

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

NRC Measurements: PSB Alpha P5 Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 March 2019

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: top edge of speaker cabinet
Grille: off

Frequency response and sensitivity

Sensitivity: 83.5dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Paradigm Monitor SE 3000F Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 March 2019

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: between tweeter and midrange
Grille: off

Frequency response and sensitivity

Sensitivity: 86.7dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Bowers & Wilkins 705 S2 Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 February 2019

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: between tweeter and midrange
Grille: off

Frequency response and sensitivity

Sensitivity: 85.4dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Q Acoustics 3050i Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 February 2019

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: 36” up from bottom of speaker’s front spikes (approx. 3/8” below center of top midrange-woofer’s dustcap)
Grille: off

Frequency response and sensitivity

Sensitivity: 87.8dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Bowers & Wilkins 606 Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 01 December 2018

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: between tweeter and midrange-woofer
Grille: off

Frequency response and sensitivity

Sensitivity: 85.5dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Bowers & Wilkins 603 Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 01 December 2018

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: between tweeter and midrange
Grille: off

Frequency response and sensitivity

Sensitivity: 86.5dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

NRC Measurements: Totem Acoustic Sky Tower Loudspeakers

Details
Parent Category: Products
Category: Loudspeaker Measurements
Created: 15 November 2018

All loudspeaker measurements are performed independently at the National Research Council of Canada. All measurement data and graphical information displayed below are the property of the SoundStage! Network and Schneider Publishing Inc. Reproduction in any format is not permitted.

Setup

Microphone measuring position: tweeter axis
Grille: off

Frequency response and sensitivity

Sensitivity: 85.5dB (averaged 300Hz-3kHz on Listening Window, 2.83V/1m)

Chart A: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response

Chart B: 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Frequency response

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Listening window

20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Listening window

Response curve is an average of five measurements: on-axis, 15 degrees left and right off-axis, 15 degrees up and down off-axis

Total harmonic distortion + noise

Chart A: @ 90dB, 50Hz - 10kHz (measured @ 2m)

THD

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Deviation from linearity

Chart A: Difference @ 90dB from 70dB, 50Hz - 20kHz (measured @ 2m)

Deviation from linearity

Impedance magnitude variation

Impedance

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

  1. NRC Measurements: Studio Electric M4 Loudspeakers
  2. NRC Measurements: Paradigm Monitor SE Atom Loudspeakers

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Equipment-Review Archives

The following categories containing listings of all product reviews published by the SoundStage! Network since 1995 from all of our online publications. The products are divided into categories and listed in descending order by date. There is no Search function within the listings, but you can search by bringing up the page with the appropriate list and using the "Find" command on your browser. (For Internet Explorer select: Edit > Find on this Page.)

Loudspeaker Measurements

Headphone Measurements

Subwoofer Measurements

Headphone Amplifier Measurements

Amplifier Measurements

Preamplifier Measurements

Phono Preamplifier Measurements

Digital-to-Analog Converter Measurements

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