Purifi

Purify is a Danish company that produces exceptional loudspeakers.

To our building proposals with Purifi drivers.

Mids

recommended cabinet 1:
closed cabinet with 0,95 L volume
from 98/62 Hz (-3dB/-8dB)

recommended cabinet 2:
2,9 L volume bass reflex cabinet
with HP35 reflex tube, 35 cm long.
from 53/41 Hz (-3dB/-8dB).

Purifi PTT4.0X04-NFC-01

order no. pu-40x04-nfc

EUR 299,95 excl. VAT: € 252.06 / $ 292.39

11 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 200 W
resonance frequency fs = 38 Hz
impedance R = 4 Ohm
sound pressure level SPL = 84,5 dB (2,83V; 1m)
sound pressure level SPL = 81,8 dB (1W; 1m)
DC resistance Re = 3,8 Ohm
force factor BL = 6 N/A
voice coil inductance L = 0,38 mH
effective piston radiating area Sd = 56,7 cm²
effective mechanical mass incl. air load mms = 12,8 g
equivalent volume of compliance Vas = 6,4 l
total Q factor Qts = 0,3 (Qms=4,5, Qes=0,32)
voice coil diameter = 30 mm
maximum peak linear excursion vibration x_lin = +/- 8,8 mm
mounting diameter d = 100,5 mm
overall diameter d = 125 mm
mounting depth (not countersunk) t = 73,5 mm

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recommended cabinet 1:
closed cabinet with 1,4 L volume
from 87/55 Hz (-3dB/-8dB)

recommended cabinet 2:
5 L volume bass reflex cabinet
with HP35 reflex tube, 25 cm long.
from 44/35 Hz (-3dB/-8dB).

Purifi PTT4.0X08-NFC-01

order no. pu-40x08-nfc

EUR 299,95 excl. VAT: € 252.06 / $ 292.39

11 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 200 W
resonance frequency fs = 41 Hz
impedance R = 8 Ohm
sound pressure level SPL = 82 dB (2,83V; 1m)
sound pressure level SPL = 81,5 dB (1W; 1m)
DC resistance Re = 6,4 Ohm
force factor BL = 6,9 N/A
voice coil inductance L = 0,51 mH
effective piston radiating area Sd = 56,7 cm²
effective mechanical mass incl. air load mms = 11,7 g
equivalent volume of compliance Vas = 5,7 l
total Q factor Qts = 0,37 (Qms=4,2, Qes=0,41)
voice coil diameter = 30 mm
maximum peak linear excursion vibration x_lin = +/- 8,5 mm
mounting diameter d = 100,5 mm
overall diameter d = 125 mm
mounting depth (not countersunk) t = 73,5 mm

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recommended cabinet 1:
closed cabinet with 2,2 L volume
from 129/82 Hz (-3dB/-8dB)

recommended cabinet 2:
7,1 L volume bass reflex cabinet
with HP50 reflex tube, 14 cm long.
from 68/53 Hz (-3dB/-8dB).

Purifi PTT6.5M04-NFA-01

order no. pu-65m04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 250 W
resonance frequency fs = 55 Hz
impedance R = 4 Ohm
sound pressure level SPL = 93,2 dB (2,83V; 1m)
sound pressure level SPL = 90,4 dB (1W; 1m)
DC resistance Re = 3,9 Ohm
force factor BL = 8,1 N/A
voice coil inductance L = 0,26 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 17,8 g
equivalent volume of compliance Vas = 11,7 l
total Q factor Qts = 0,33 (Qms=4,2, Qes=0,36)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 2,9 mm
mounting diameter d = 148,3 mm
overall diameter d = 176,3 mm
mounting depth (not countersunk) t = 86 mm

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recommended cabinet 1:
closed cabinet with 2,8 L volume
from 120/76 Hz (-3dB/-8dB)

recommended cabinet 2:
10 L volume bass reflex cabinet
with HP50 reflex tube, 11 cm long.
from 61/49 Hz (-3dB/-8dB).

Purifi PTT6.5M08-NFA-01

order no. pu-65m08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 200 W
resonance frequency fs = 57 Hz
impedance R = 8 Ohm
sound pressure level SPL = 91 dB (2,83V; 1m)
sound pressure level SPL = 90,4 dB (1W; 1m)
DC resistance Re = 6,5 Ohm
force factor BL = 9,7 N/A
voice coil inductance L = 0,38 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 17 g
equivalent volume of compliance Vas = 11,5 l
total Q factor Qts = 0,38 (Qms=4,2, Qes=0,42)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 2,9 mm
mounting diameter d = 148,3 mm
overall diameter d = 176,3 mm
mounting depth (not countersunk) t = 86 mm

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recommended cabinet 1:
closed cabinet with 3,1 L volume
from 85/54 Hz (-3dB/-8dB)

recommended cabinet 2:
8,4 L volume bass reflex cabinet
with HP50 reflex tube, 31 cm long.
from 48/37 Hz (-3dB/-8dB).

Purifi PTT6.5X04-NFA-01

order no. pu-65x04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 250 W
resonance frequency fs = 30 Hz
impedance R = 4 Ohm
sound pressure level SPL = 88,7 dB (2,83V; 1m)
sound pressure level SPL = 85,9 dB (1W; 1m)
DC resistance Re = 3,7 Ohm
force factor BL = 8,1 N/A
voice coil inductance L = 0,38 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 26,7 g
equivalent volume of compliance Vas = 25,9 l
total Q factor Qts = 0,27 (Qms=5,8, Qes=0,28)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 9,8 mm
mounting diameter d = 145 mm
overall diameter d = 176 mm
mounting depth (not countersunk) t = 85,15 mm

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recommended cabinet 1:
closed cabinet with 3,9 L volume
from 80/50 Hz (-3dB/-8dB)

recommended cabinet 2:
11,9 L volume bass reflex cabinet
with HP50 reflex tube, 24 cm long.
from 44/34 Hz (-3dB/-8dB).

Purifi PTT6.5X08-NFA-01

order no. pu-65x08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass-midrange driver with high quality cone.

power handling (continuous/programme) = 250 W
resonance frequency fs = 31 Hz
impedance R = 8 Ohm
sound pressure level SPL = 86,9 dB (2,83V; 1m)
sound pressure level SPL = 86,2 dB (1W; 1m)
DC resistance Re = 6 Ohm
force factor BL = 9,5 N/A
voice coil inductance L = 0,53 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 24,4 g
equivalent volume of compliance Vas = 26,4 l
total Q factor Qts = 0,31 (Qms=6,6, Qes=0,32)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 9,8 mm
mounting diameter d = 145 mm
overall diameter d = 176 mm
mounting depth (not countersunk) t = 85,15 mm

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Woofer

recommended cabinet 1:
closed cabinet with 3,2 L volume
from 97/61 Hz (-3dB/-8dB)

recommended cabinet 2:
8,3 L volume bass reflex cabinet
with HP50 reflex tube, 24 cm long.
from 56/42 Hz (-3dB/-8dB).

Purifi PTT6.5W04-NFA-01

order no. pu-65w04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass driver with high quality cone.

power handling (continuous/programme) = 250 W
resonance frequency fs = 33 Hz
impedance R = 4 Ohm
sound pressure level SPL = 90,3 dB (2,83V; 1m)
sound pressure level SPL = 87,5 dB (1W; 1m)
DC resistance Re = 3,7 Ohm
force factor BL = 7,7 N/A
voice coil inductance L = 0,32 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 21,1 g
equivalent volume of compliance Vas = 28,9 l
total Q factor Qts = 0,26 (Qms=6,3, Qes=0,27)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 5,9 mm
mounting diameter d = 145 mm
overall diameter d = 176 mm
mounting depth (not countersunk) t = 85,15 mm

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

recommended cabinet 2:
12,1 L volume bass reflex cabinet
with HP50 reflex tube, 16 cm long.
from 50/39 Hz (-3dB/-8dB).

Purifi PTT6.5W08-NFA-01

order no. pu-65w08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 418.18

15 cm bass driver with high quality cone.

power handling (continuous/programme) = 250 W
resonance frequency fs = 38,5 Hz
impedance R = 8 Ohm
sound pressure level SPL = 87,9 dB (2,83V; 1m)
sound pressure level SPL = 87,8 dB (1W; 1m)
DC resistance Re = 6,9 Ohm
force factor BL = 9,6 N/A
voice coil inductance L = 0,48 mH
effective piston radiating area Sd = 132,7 cm²
effective mechanical mass incl. air load mms = 19,4 g
equivalent volume of compliance Vas = 22 l
total Q factor Qts = 0,33 (Qms=6,7, Qes=0,35)
voice coil diameter = 39 mm
maximum peak linear excursion vibration x_lin = +/- 5,9 mm
mounting diameter d = 145 mm
overall diameter d = 176 mm
mounting depth (not countersunk) t = 85,15 mm

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Purifi PTT4.0PR-NF2-01

order no. pu-40pr-nf2

EUR 99,95 excl. VAT: € 83.99 / $ 97.43

11 cm passive radiator.

resonance frequency fs = 24 Hz
effective piston radiating area Sd = 57 cm²
effective mechanical mass incl. air load mms = 30 g
equivalent volume of compliance Vas = 6,4 l
total Q factor Qts = (Qms=7, Qes=)
maximum peak linear excursion vibration x_lin = +/- 14 mm
mounting diameter d = 100,31 mm
overall diameter d = 125 mm
mounting depth (not countersunk) t = 39,5 mm

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Purifi PTT6.5PR-NF1-01

order no. pu-65pr-nf1

EUR 125,00 excl. VAT: € 105.04 / $ 121.85

15 cm passive radiator.

resonance frequency fs = 17 Hz
effective piston radiating area Sd = 133 cm²
effective mechanical mass incl. air load mms = 80 g
equivalent volume of compliance Vas = 26,2 l
total Q factor Qts = (Qms=10,9, Qes=)
mounting diameter d = 145 mm
overall diameter d = 176,1 mm
mounting depth (not countersunk) t = 49 mm

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Purifi PTT10.0X04-NAB-01

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recommended cabinet 1:
closed cabinet with 15 L volume
from 57/36 Hz (-3dB/-8dB)

recommended cabinet 2:
50 L volume bass reflex cabinet
with HP70 reflex tube, 21 cm long.
from 30/23 Hz (-3dB/-8dB).

Purifi PTT10.0X04-NAB-01

order no. pu-ptt10-0x404-nab-01

EUR 899,00 excl. VAT: € 755.46 / $ 876.34

24 cm bass driver with high quality cone.

resonance frequency fs = 24 Hz
impedance R = 4 Ohm
sound pressure level SPL = 88 dB (2,83V; 1m)
DC resistance Re = 3,9 Ohm
force factor BL = 12,8 N/A
voice coil inductance L = 0,62 mH
effective piston radiating area Sd = 360 cm²
effective mechanical mass incl. air load mms = 98 g
equivalent volume of compliance Vas = 82 l
total Q factor Qts = 0,33 (Qms=5,5, Qes=0,35)
voice coil diameter = 52 mm
maximum peak linear excursion vibration x_lin = +/- 14,75 mm
mounting diameter d = 242 mm
overall diameter d = 269,3 mm
mounting depth (not countersunk) t = 146 mm

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OEM

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Purifi PTT10.0X04-NAB-02

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Purifi PTT10.0X04-NAB-02

order no. pu-ptt10-0x404-nab-02

on request

24 cm bass driver with high quality cone.

resonance frequency fs = 24 Hz
impedance R = 4 Ohm
sound pressure level SPL = 88 dB (2,83V; 1m)
DC resistance Re = 3,9 Ohm
force factor BL = 12,8 N/A
voice coil inductance L = 0,62 mH
effective piston radiating area Sd = 360 cm²
effective mechanical mass incl. air load mms = 98 g
equivalent volume of compliance Vas = 82 l
total Q factor Qts = 0,33 (Qms=5,5, Qes=0,35)
voice coil diameter = 52 mm
maximum peak linear excursion vibration x_lin = +/- 14,75 mm
mounting diameter d = 242 mm
overall diameter d = 269,3 mm
mounting depth (not countersunk) t = 146 mm

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Mids Woofer OEM

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.