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Ascendo The 28 Sub Squared Pro Passive Sealed Shallow

Ascendo · Subwoofer · Sealed, passive · 2023

Open in the designer Add to compare Opens the designer's starter room with the Ascendo The 28 Sub Squared Pro Passive Sealed Shallow on the subwoofer. It replaces the design open in this browser once you edit it, as a shared link does.

Specifications

Property Value Source
Sensitivity 98 dB/2.83V/m voltage: 2.83V · distance: 1m · baffle loading: 2pi (half-space) · unit: dB/2.83V/m Sensitivity: Independent measurement, Klippel NFS Independent measurement, Klippel NFS Document ↗
Maximum SPL 140 dB (peak) loading: half space (2pi), referenced to 1 m · basis: peak · frequency: 80 Hz Maximum SPL: Independent measurement, Klippel CEA2010B test, report page 10 (Part 7 summary: 140 dB @ 80 Hz, 128 dB @ 32 Hz, 123 dB @ 20 Hz, 96 dB @ 10 Hz) Independent measurement, Klippel CEA2010B test, report page 10 (Part 7 summary: 140 dB @ 80 Hz, 128 dB @ 32 Hz, 123 dB @ 20 Hz, 96 dB @ 10 Hz) Document ↗
LF extension 50 Hz (-3dB) tolerance: -3dB LF extension: Independent measurement, Klippel NFS Independent measurement, Klippel NFS Document ↗
Frequency response Measured curve on file, 110 points, 8.8 to 4756.8 Hz drive: 2.83V @ 1m (1W, 8 ohm configuration), half space (2pi) · phase: not published; magnitude only · unit: dB SPL Frequency response: Independent measurement, Klippel NFS measurement report, page 4 (frequency response), magnitude read from the PDF vector paths Independent measurement, Klippel NFS measurement report, page 4 (frequency response), magnitude read from the PDF vector paths, Document ↗
Cabinet, W × H × D 800 × 1015 × 300 mm order: W/H/D · grille: excluded · feet: included · unit: mm Cabinet, W × H × D: Manufacturer, ASCENDO product page, Dimensions (W/H/D) mm (Without Grille) Manufacturer, ASCENDO product page, Dimensions (W/H/D) mm (Without Grille), Document ↗

Response and output

Drawn on the same axes for every subwoofer in openavdb, so pages compare by eye. The designer's bass engine uses these curves.

Frequency response

  • Extracted from a published plot
Frequency response, Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: extracted from a published plot. SPL, 2.83 V at 1 m (dB) against frequency (hz), 10 to 200 Hz. 50 60 70 80 90 100 110 10 20 30 40 50 60 80 100 150 200 Frequency (Hz) Ascendo The 28 Sub Squared Pro Passive Sealed Shallow SPL, 2.83 V at 1 m (dB) Frequency response, Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: extracted from a published plot. SPL, 2.83 V at 1 m (dB) against frequency (hz), 10 to 200 Hz. 50 60 70 80 90 100 110 10 20 50 100 200 Frequency (Hz) Ascendo The 28 Sub Squared Pro Passive Sealed Shallow SPL, 2.83 V at 1 m (dB)
Plotted values
HzAscendo The 28 Sub Squared Pro Passive Sealed Shallow
10.4368.15
11.0569.57
11.7171.16
12.472.53
13.1473.81
13.9275.23
14.7576.34
15.6277.22
16.5577.75
17.5478.28
18.5879.37
19.6980.46
20.8681.57
22.182.68
23.4183.53
24.883.91
26.2884.29
27.8484.79
29.585.13
31.2585.3
33.1185.83
35.0886.55
37.1687.44
39.3788.53
41.7189.64
44.1990.73
46.8291.67
49.6192.34
52.5692.89
55.6893.59
58.9994.59
62.595.87
66.2296.9
70.1597.29
74.3397.44
78.7597.67
83.4397.8
88.3997.84
93.6497.52
99.2197.24
105.1197.53
111.3697.9
117.9898.35
12598.68
132.4398.52
140.3198.28
148.6597.9
157.4997.95
166.8597.89
176.7897.5
187.2997.44
198.4397.42
Published at 2.83 V, 1 m; drawn as published. Source conditions: 2.83V @ 1m (1W, 8 ohm configuration), half space (2pi). Source: Klippel NFS measurement report, page 4 (frequency response), magnitude read from the PDF vector paths MEAS

Maximum output

  • Extracted from a published plot
Maximum output, Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: extracted from a published plot. Maximum SPL at 1 m (dB) against frequency (hz), 10 to 200 Hz. 60 70 80 90 100 110 120 130 140 150 10 20 30 40 50 60 80 100 150 200 Frequency (Hz) Ascendo The 28 Sub Squared Pro Passive Sealed Shallow Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: 10 Hz, 96 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 12.5 Hz, 111.8 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 16 Hz, 116.5 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 20 Hz, 122.7 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 25 Hz, 126.7 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 31.5 Hz, 127.9 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 40 Hz, 130.4 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 50 Hz, 134.3 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 63 Hz, 137.4 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 80 Hz, 139.8 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 100 Hz, 140 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 125 Hz, 140.7 dB Maximum SPL at 1 m (dB) Maximum output, Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: extracted from a published plot. Maximum SPL at 1 m (dB) against frequency (hz), 10 to 200 Hz. 60 70 80 90 100 110 120 130 140 150 10 20 50 100 200 Frequency (Hz) Ascendo The 28 Sub Squared Pro Passive Sealed Shallow Ascendo The 28 Sub Squared Pro Passive Sealed Shallow: 10 Hz, 96 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 12.5 Hz, 111.8 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 16 Hz, 116.5 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 20 Hz, 122.7 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 25 Hz, 126.7 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 31.5 Hz, 127.9 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 40 Hz, 130.4 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 50 Hz, 134.3 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 63 Hz, 137.4 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 80 Hz, 139.8 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 100 Hz, 140 dBAscendo The 28 Sub Squared Pro Passive Sealed Shallow: 125 Hz, 140.7 dB Maximum SPL at 1 m (dB)
Plotted values
HzAscendo The 28 Sub Squared Pro Passive Sealed Shallow
1096
12.5111.8
16116.5
20122.7
25126.7
31.5127.9
40130.4
50134.3
63137.4
80139.8
100140
125140.7
Drawn as published, no shift. Source conditions: CEA-2010-B, peak, 1m, half_space_2pi, CEA-2010-B, measured in 2x 4 ohm configuration. Source: Klippel CEA2010B test, page 7 (Max Peak SPL, Max Passed), read from the PDF vector paths MEAS