Tweeter   Woofer   no longer sold  

Gradient


 

Tweeter


 

Woofer


recommended cabinet 1:
closed cabinet with 1,8 L volume
from 114/72 Hz (-3dB/-8dB)

recommended cabinet 2:
6,1 L volume bass reflex cabinet
with HP50 reflex tube, 23 cm long.
from 60/47 Hz (-3dB/-8dB).

Gradient MDS05  

order no. I-5062

EUR 82,00 excl. VAT: € 68.91 / $ 74.42

14 cm bass driver with kevlar cone. The basket is made of die-cast.

  • power handling (continuous/programme) = 100/150 W
  • frequency range = -45000 Hz
  • resonance frequency fs = 50 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • voice coil inductance L = 0,43 mH
  • effective piston radiating area Sd = 85 cm2
  • effective mechanical mass incl. air load mms = 10,5 g
  • equivalent volume of compliance Vas = 9,1 l
  • total Q factor Qts = 0,34 (Qms=2,61, Qes=0,39)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 7 mm
  • mounting diameter d = 121 mm
  • overall diameter d = 150 mm
  • mounting depth (not countersunk) t = 77 mm


recommended cabinet 1:
closed cabinet with 1,8 L volume
from 114/72 Hz (-3dB/-8dB)

recommended cabinet 2:
6,1 L volume bass reflex cabinet
with HP50 reflex tube, 23 cm long.
from 60/47 Hz (-3dB/-8dB).

Gradient MDS05 gelb  

order no. I-5062g

EUR 41,90 excl. VAT: € 35.21 / $ 38.03

14 cm bass driver with kevlar cone. The basket is made of die-cast.

  • power handling (continuous/programme) = 100/150 W
  • frequency range = -45000 Hz
  • resonance frequency fs = 50 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • voice coil inductance L = 0,43 mH
  • effective piston radiating area Sd = 85 cm2
  • effective mechanical mass incl. air load mms = 10,5 g
  • equivalent volume of compliance Vas = 9,1 l
  • total Q factor Qts = 0,34 (Qms=2,61, Qes=0,39)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 7 mm
  • mounting diameter d = 121 mm
  • overall diameter d = 150 mm
  • mounting depth (not countersunk) t = 77 mm


recommended cabinet 1:
closed cabinet with 7,9 L volume
from 70/44 Hz (-3dB/-8dB)

recommended cabinet 2:
31 L volume bass reflex cabinet
with HP70 reflex tube, 22 cm long.
from 34/27 Hz (-3dB/-8dB).

Gradient MDS06  

order no. I-5061

EUR 78,20 excl. VAT: € 65.71 / $ 70.97

16 cm bass-midrange driver with kevlar cone. The basket is made of die-cast.

  • power handling (continuous/programme) = 100/150 W
  • frequency range = -5000 Hz
  • resonance frequency fs = 38 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • voice coil inductance L = 0,43 mH
  • effective piston radiating area Sd = 131 cm2
  • effective mechanical mass incl. air load mms = 17,4 g
  • equivalent volume of compliance Vas = 22,2 l
  • total Q factor Qts = 0,42 (Qms=3,61, Qes=0,48)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 7 mm
  • mounting diameter d = 146 mm
  • overall diameter d = 181 mm
  • mounting depth (not countersunk) t = 84 mm


recommended cabinet 1:
closed cabinet with 31 L volume
from 51/32 Hz (-3dB/-8dB)

recommended cabinet 2:
125 L volume bass reflex cabinet
with 2x HP100 reflex tube, 41 cm long.
from 24/20 Hz (-3dB/-8dB).

Gradient MDS12DVC  

order no. I-5060

- not available (_)

27 cm bass driver with kevlar cone. The driver is made with a double voice coil and the given impedance values are for connection in series.

  • power handling (continuous/programme) = 350/500 W
  • frequency range = -250 Hz
  • resonance frequency fs = 29,5 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 89 dB (2,83V; 1m)
  • effective piston radiating area Sd = 491 cm2
  • effective mechanical mass incl. air load mms = 133 g
  • equivalent volume of compliance Vas = 72 l
  • total Q factor Qts = 0,46 (Qms=6,56, Qes=0,5)
  • voice coil diameter = 65 mm
  • maximum peak linear excursion vibration xlin = +/- 15 mm
  • mounting diameter d = 179 mm
  • overall diameter d = 329 mm
  • mounting depth (not countersunk) t = 137 mm


 

no longer sold


Gradient GDT 104 F  

order no. I-1381611

- not available (_)

25 mm dome tweeter with fabric dome. The voice coil windings are immersed in magnetic fluid to increase short term power handling capacity, to reduce the compression and the Q factor..

  • power handling (continuous/programme) = 45 W
  • frequency range = 2500-18000 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 91 dB (2,83V; 1m)
  • voice coil diameter = 25 mm
  • mounting diameter d = 81 mm
  • overall diameter d = 104 mm
  • mounting depth (not countersunk) t = 32 mm
PDF data sheet


Gradient GDT 104 F/TV  

order no. I-1381621

- not available (_)

25 mm dome tweeter with fabric dome. The voice coil windings are immersed in magnetic fluid to increase short term power handling capacity, to reduce the compression and the Q factor.. The driver is magnetically shielded.

  • power handling (continuous/programme) = 45 W
  • frequency range = 2000-20000 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • voice coil diameter = 25 mm
  • mounting diameter d = 81 mm
  • overall diameter d = 104 mm
  • mounting depth (not countersunk) t = 44,5 mm
PDF data sheet


Gradient GDT-104-N  

order no. I-1381639

- not available (_)

mm tweeter with high quality cone.

  • resonance frequency fs = 1500 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 92 dB (2,83V; 1m)


Gradient K10CB  

order no. I-1399017

- not available (_)

mm tweeter with high quality cone.

  • frequency range = 2500-40000 Hz
  • impedance R = 8 Ohm
  • mounting diameter d = 48 mm
  • overall diameter d = 50 mm
  • mounting depth (not countersunk) t = 18 mm


Gradient GRT-175A  

order no. I-1381637

- not available

ribbon tweeter.

  • power handling (continuous/programme) = 50/30 W
  • frequency range = 2500-40000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 96 dB (2,83V; 1m)
  • overall diameter d = 175x90 mm
  • mass m = 0,65 kg


Gradient GRT-195/MK2  

order no. I-1381603

- not available

ribbon tweeter.

  • power handling (continuous/programme) = 50/85 W
  • frequency range = 3000-20000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 102 dB (2,83V; 1m)
  • overall diameter d = 196x126 mm


Gradient MD9550  

order no. I-5005

- not available (_)

midrange driver with fabric cone.

  • power handling (continuous/programme) = 90/120 W
  • frequency range = 750-10000 Hz
  • resonance frequency fs = 600 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 3,4 Ohm
  • voice coil inductance L = 0,077 mH
  • total Q factor Qts = 0,64 (Qms=2,75, Qes=0,83)
  • voice coil diameter = 50 mm
  • mounting diameter d = 78 mm
  • overall diameter d = 95 mm
  • mounting depth (not countersunk) t = 30 mm


recommended cabinet 1:
closed cabinet with 0,35 L volume
from 219/138 Hz (-3dB/-8dB)

recommended cabinet 2:
1,2 L volume bass reflex cabinet
with 2cm-Rohr reflex tube, 6 cm long.
from 115/90 Hz (-3dB/-8dB).

Gradient TPC80NV  

order no. I-1382101

- not available (_)

7 cm full range driver with paper cone.

  • power handling (continuous/programme) = 60/80 W
  • frequency range = 80-8000 Hz
  • resonance frequency fs = 93 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 83 dB (2,83V; 1m)
  • DC resistance Re = 3,3 Ohm
  • effective piston radiating area Sd = 35 cm2
  • effective mechanical mass incl. air load mms = 2,5 g
  • equivalent volume of compliance Vas = 1,9 l
  • total Q factor Qts = 0,33 (Qms=2,63, Qes=0,38)
  • voice coil diameter = 19 mm
  • mounting diameter d = 72 mm
  • overall diameter d = 80 mm
  • mounting depth (not countersunk) t = 45 mm


Gradient GPM 100 TV  

order no. I-1381625

- not available (_)

9 cm bass driver with high quality cone. The driver is magnetically shielded.

  • power handling (continuous/programme) = 25/50 W
  • frequency range = 100-6000 Hz
  • resonance frequency fs = 71 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84 dB (2,83V; 1m)
  • DC resistance Re = 7,4 Ohm
  • force factor BL = 3,3 N/A
  • effective piston radiating area Sd = 46,6 cm2
  • effective mechanical mass incl. air load mms = 3 g
  • equivalent volume of compliance Vas = 5 l
  • total Q factor Qts = 0,63 (Qms=1,966, Qes=0,927)
  • voice coil diameter = 18 mm
  • maximum peak linear excursion vibration xlin = +/- 0,25 mm
  • mounting diameter d = 89 mm
  • overall diameter d = 100,5 mm
  • mounting depth (not countersunk) t = 59,7 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 6 L volume
from 113/71 Hz (-3dB/-8dB)

recommended cabinet 2:
24 L volume bass reflex cabinet
with 4x HP100 reflex tube, 97 cm long.
from 51/44 Hz (-3dB/-8dB).

Gradient AX-05  

order no. I-1381650

- not available (_)

6 cm full range driver with kevlar cone. The basket is made of die-cast.

  • resonance frequency fs = 76,94 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90,16 dB (2,83V; 1m)
  • DC resistance Re = 6,0 Ohm
  • force factor BL = 5,06 N/A
  • effective piston radiating area Sd = 85 cm2
  • effective mechanical mass incl. air load mms = 5,16 g
  • equivalent volume of compliance Vas = 8,35 l
  • total Q factor Qts = 0,54 (Qms=7,26, Qes=0,58)
  • voice coil diameter = 25 mm
  • overall diameter d = 104 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 10 L volume
from 102/65 Hz (-3dB/-8dB)

recommended cabinet 2:
40 L volume bass reflex cabinet
with 4x HP100 reflex tube, 70 cm long.
from 49/40 Hz (-3dB/-8dB).

Gradient AX-06  

order no. I-1381660

- not available (_)

8 cm full range driver with kevlar cone. The basket is made of die-cast.

  • resonance frequency fs = 55,94 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 92,32 dB (2,83V; 1m)
  • DC resistance Re = 5,9 Ohm
  • force factor BL = 5,79 N/A
  • effective piston radiating area Sd = 137 cm2
  • effective mechanical mass incl. air load mms = 7,48 g
  • equivalent volume of compliance Vas = 28,29 l
  • total Q factor Qts = 0,43 (Qms=7,31, Qes=0,46)
  • voice coil diameter = 25 mm
  • overall diameter d = 132 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 2,5 L volume
from 104/65 Hz (-3dB/-8dB)

recommended cabinet 2:
8,1 L volume bass reflex cabinet
with HP35 reflex tube, 9 cm long.
from 55/43 Hz (-3dB/-8dB).

Gradient W130AL8  

order no. I-1399001

- not available (_)

14 cm full range driver with aluminium cone.

  • power handling (continuous/programme) = 75/100 W
  • frequency range = 40-6000 Hz
  • resonance frequency fs = 44 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • DC resistance Re = 6,14 Ohm
  • effective piston radiating area Sd = 85 cm2
  • effective mechanical mass incl. air load mms = 9,8 g
  • equivalent volume of compliance Vas = 13,4 l
  • total Q factor Qts = 0,34 (Qms=1,75, Qes=0,42)
  • voice coil diameter = 26 mm
  • maximum peak linear excursion vibration xlin = +/- 2 mm
  • mounting diameter d = 128 mm
  • overall diameter d = 147 mm
  • mounting depth (not countersunk) t = 79 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 54 L volume
from 62/39 Hz (-3dB/-8dB)

recommended cabinet 2:
218 L volume bass reflex cabinet
with 4x HP100 reflex tube, 27 cm long.
from 28/24 Hz (-3dB/-8dB).

Gradient AX-08  

order no. I-1381680

- not available (_)

11 cm full range driver with kevlar cone. The driver is made with a double voice coil and the given impedance values are for connection in series.

  • resonance frequency fs = 41,63 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 92,19 dB (2,83V; 1m)
  • DC resistance Re = 6,3 Ohm
  • force factor BL = 5,89 N/A
  • effective piston radiating area Sd = 210 cm2
  • effective mechanical mass incl. air load mms = 11,67 g
  • equivalent volume of compliance Vas = 79,92 l
  • total Q factor Qts = 0,53 (Qms=8,91, Qes=0,56)
  • voice coil diameter = 25 mm
  • overall diameter d = 165 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 9 L volume
from 76/48 Hz (-3dB/-8dB)

recommended cabinet 2:
36 L volume bass reflex cabinet
with HP70 reflex tube, 14 cm long.
from 36/30 Hz (-3dB/-8dB).

Gradient W160AL8  

order no. I-1399002

- not available (_)

16 cm bass-midrange driver with aluminium cone.

  • power handling (continuous/programme) = 80/100 W
  • frequency range = 40-4500 Hz
  • resonance frequency fs = 44 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • DC resistance Re = 6,18 Ohm
  • effective piston radiating area Sd = 125 cm2
  • effective mechanical mass incl. air load mms = 13 g
  • equivalent volume of compliance Vas = 21 l
  • total Q factor Qts = 0,46 (Qms=2,13, Qes=0,59)
  • voice coil diameter = 26 mm
  • maximum peak linear excursion vibration xlin = +/- 3 mm
  • mounting diameter d = 143 mm
  • overall diameter d = 171 mm
  • mounting depth (not countersunk) t = 88 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 6,7 L volume
from 81/51 Hz (-3dB/-8dB)

recommended cabinet 2:
24 L volume bass reflex cabinet
with HP70 reflex tube, 21 cm long.
from 42/33 Hz (-3dB/-8dB).

Gradient GDS 182  

order no. I-1381630

- not available (_)

17 cm bass-midrange driver with polypropylene cone. The basket is made of die-cast.

  • power handling (continuous/programme) = 80/150 W
  • frequency range = 40-3000 Hz
  • resonance frequency fs = 37,5 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 87,7 dB (2,83V; 1m)
  • DC resistance Re = 5,3 Ohm
  • force factor BL = 6,8 N/A
  • voice coil inductance L = 0,36 mH
  • effective piston radiating area Sd = 137 cm2
  • effective mechanical mass incl. air load mms = 15,7 g
  • equivalent volume of compliance Vas = 29,9 l
  • total Q factor Qts = 0,37 (Qms=2,73, Qes=0,43)
  • voice coil diameter = 26 mm
  • maximum peak linear excursion vibration xlin = +/- 3 mm
  • mounting diameter d = 155 mm
  • overall diameter d = 182 mm
  • mounting depth (not countersunk) t = 80 mm
  • mass m = 1,8 kg
PDF data sheet


Gradient MDS10DVC  

order no. I-1391002

- not available (_)

26 cm bass driver with kevlar cone. The driver is made with a double voice coil and the given impedance values are for connection in series. The speaker has a 4 mm solid metal front plate.

  • power handling (continuous/programme) = 300/450 W
  • frequency range = -400 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • voice coil inductance L = 1,12 mH
  • effective piston radiating area Sd = 346 cm2
  • effective mechanical mass incl. air load mms = 90,2 g
  • equivalent volume of compliance Vas = 47 l
  • total Q factor Qts = 0,23 (Qms=7,82, Qes=0,24)
  • voice coil diameter = 65 mm
  • maximum peak linear excursion vibration xlin = +/- 16 mm
  • mounting diameter d = 239 mm
  • overall diameter d = 278 mm
  • mounting depth (not countersunk) t = 145 mm


recommended cabinet 1:
closed cabinet with 53 L volume
from 52/33 Hz (-3dB/-8dB)

recommended cabinet 2:
199 L volume bass reflex cabinet
with 2x HP100 reflex tube, 21 cm long.
from 26/21 Hz (-3dB/-8dB).

Gradient GCP 312/8  

order no. I-1381620

- not available (_)

30 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 100/300 W
  • frequency range = 20-1000 Hz
  • resonance frequency fs = 26 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 7,16 Ohm
  • force factor BL = 11,7 N/A
  • effective piston radiating area Sd = 460 cm2
  • effective mechanical mass incl. air load mms = 57 g
  • equivalent volume of compliance Vas = 194 l
  • total Q factor Qts = 0,4 (Qms=2,06, Qes=0,49)
  • voice coil diameter = 52 mm
  • maximum peak linear excursion vibration xlin = +/- 4,75 mm
  • mounting diameter d = 281 mm
  • overall diameter d = 312 mm
  • mounting depth (not countersunk) t = 128 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 39 L volume
from 63/40 Hz (-3dB/-8dB)

recommended cabinet 2:
118 L volume bass reflex cabinet
with 2x HP100 reflex tube, 26 cm long.
from 34/27 Hz (-3dB/-8dB).

Gradient GCP 312/4  

order no. I-1381619

- not available (_)

30 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 100/300 W
  • frequency range = 20-1000 Hz
  • resonance frequency fs = 24,5 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 3,5 Ohm
  • force factor BL = 8,3 N/A
  • effective piston radiating area Sd = 460 cm2
  • effective mechanical mass incl. air load mms = 47,5 g
  • equivalent volume of compliance Vas = 263 l
  • total Q factor Qts = 0,3 (Qms=1,47, Qes=0,375)
  • voice coil diameter = 52 mm
  • maximum peak linear excursion vibration xlin = +/- 4,75 mm
  • mounting diameter d = 281 mm
  • overall diameter d = 312 mm
  • mounting depth (not countersunk) t = 128 mm
PDF data sheet


Gradient GDT 78 neo  

order no. I-1381610

- not available (_)

25 mm dome tweeter with fabric dome.

  • power handling (continuous/programme) = 20 W
  • frequency range = 2500-18000 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • voice coil diameter = 25 mm
  • mounting diameter d = 54 mm
  • overall diameter d = 78 mm
  • mounting depth (not countersunk) t = 14,5 mm
PDF data sheet


Gradient GRT 116  

order no. I-1381602

- not available (_)

ribbon tweeter. The magnet system is based on Neodymium technology.

  • power handling (continuous/programme) = 15 W
  • frequency range = 2500-20000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 4,5 Ohm
  • voice coil inductance L = - mH
  • effective piston radiating area Sd = - cm2
  • maximum peak linear excursion vibration xlin = +/- - mm
  • overall diameter d = 116x85 mm
  • mounting depth (not countersunk) t = 33 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 3 L volume
from 111/70 Hz (-3dB/-8dB)

recommended cabinet 2:
12,3 L volume bass reflex cabinet
with HP35 reflex tube, 4 cm long.
from 50/43 Hz (-3dB/-8dB).

Gradient GPM 100  

order no. I-1381624

- not available (_)

9 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 25/50 W
  • frequency range = 100-6000 Hz
  • resonance frequency fs = 74 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84 dB (2,83V; 1m)
  • DC resistance Re = 7,36 Ohm
  • force factor BL = 3,7 N/A
  • effective piston radiating area Sd = 46,6 cm2
  • effective mechanical mass incl. air load mms = 3,1 g
  • equivalent volume of compliance Vas = 4,5 l
  • total Q factor Qts = 0,54 (Qms=1,8, Qes=0,766)
  • voice coil diameter = 18 mm
  • maximum peak linear excursion vibration xlin = +/- 0,25 mm
  • mounting diameter d = 89 mm
  • overall diameter d = 100,5 mm
  • mounting depth (not countersunk) t = 53 mm
PDF data sheet


Gradient GDT 104 R/TV  

order no. I-1381622

- not available (_)

25 mm dome tweeter with fabric dome. The driver is magnetically shielded.

  • power handling (continuous/programme) = 45 W
  • frequency range = 2500-18000 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • voice coil diameter = 25 mm
  • mounting diameter d = 81 mm
  • overall diameter d = 104 mm
  • mounting depth (not countersunk) t = 44,8 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 3 L volume
from 93/59 Hz (-3dB/-8dB)

recommended cabinet 2:
11,9 L volume bass reflex cabinet
with HP50 reflex tube, 16 cm long.
from 45/37 Hz (-3dB/-8dB).

Gradient GCP 150  

order no. I-1381626

- not available (_)

13 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 60/120 W
  • frequency range = 45-5000 Hz
  • resonance frequency fs = 51 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84 dB (2,83V; 1m)
  • DC resistance Re = 7,65 Ohm
  • force factor BL = 6,2 N/A
  • effective piston radiating area Sd = 72,3 cm2
  • effective mechanical mass incl. air load mms = 8,5 g
  • equivalent volume of compliance Vas = 8,5 l
  • total Q factor Qts = 0,43 (Qms=2,35, Qes=0,533)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 4,25 mm
  • mounting diameter d = 114 mm
  • overall diameter d = 150 mm
  • mounting depth (not countersunk) t = 65,5 mm
PDF data sheet


recommended cabinet 1:
closed cabinet with 3,3 L volume
from 91/58 Hz (-3dB/-8dB)

recommended cabinet 2:
13 L volume bass reflex cabinet
with HP50 reflex tube, 16 cm long.
from 44/36 Hz (-3dB/-8dB).

Gradient GCP 150 TV  

order no. I-1381616

- not available (_)

13 cm bass driver with high quality cone. The driver is magnetically shielded.

  • power handling (continuous/programme) = 50/100 W
  • frequency range = 80-5000 Hz
  • resonance frequency fs = 51 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84 dB (2,83V; 1m)
  • DC resistance Re = 7,8 Ohm
  • force factor BL = 6 N/A
  • effective piston radiating area Sd = 72,3 cm2
  • effective mechanical mass incl. air load mms = 8,4 g
  • equivalent volume of compliance Vas = 8,6 l
  • total Q factor Qts = 0,45 (Qms=2,12, Qes=0,57)
  • voice coil diameter = 26 mm
  • maximum peak linear excursion vibration xlin = +/- 3,5 mm
  • mounting diameter d = 114 mm
  • overall diameter d = 150 mm
  • mounting depth (not countersunk) t = 75 mm
PDF data sheet


Gradient GCP 188  

order no. I-1381617

- not available (_)

17 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 60/120 W
  • frequency range = 40-4000 Hz
  • resonance frequency fs = 43,6 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 85 dB (2,83V; 1m)
  • DC resistance Re = 7,3 Ohm
  • force factor BL = 5,76 N/A
  • effective piston radiating area Sd = 135 cm2
  • effective mechanical mass incl. air load mms = 11,5 g
  • equivalent volume of compliance Vas = 29,6 l
  • total Q factor Qts = 0,59 (Qms=4,29, Qes=0,69)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 4 mm
  • mounting diameter d = 146 mm
  • overall diameter d = 188 mm
  • mounting depth (not countersunk) t = 80 mm
PDF data sheet


Gradient GCP 226  

order no. I-1381618

- not available (_)

21 cm bass driver with high quality cone.

  • power handling (continuous/programme) = 70/140 W
  • frequency range = 30-3000 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • equivalent volume of compliance Vas = 8,6 l
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 4 mm
  • mounting diameter d = 186 mm
  • overall diameter d = 226 mm
  • mounting depth (not countersunk) t = 106 mm
PDF data sheet

Tweeter   Woofer   no longer sold  
The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.

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© Copyright (c) Daniel Gattig, 2023; All rights reserved. - errors and omissions excepted