Purify-Audio

Purify is a Danish company that produces exceptional loudspeakers.

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).

Purify-Audio PTT4.0X04-NFC-01

order no. pu-40x04-nfc

EUR 299,95 excl. VAT: € 252.06 / $ 274.74

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

PDF data sheet

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).

Purify-Audio PTT4.0X08-NFC-01

order no. pu-40x08-nfc

EUR 299,95 excl. VAT: € 252.06 / $ 274.74

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

PDF data sheet

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).

Purify-Audio PTT6.5M04-NFA-01

order no. pu-65m04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

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).

Purify-Audio PTT6.5M08-NFA-01

order no. pu-65m08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

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).

Purify-Audio PTT6.5X04-NFA-01

order no. pu-65x04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

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).

Purify-Audio PTT6.5X08-NFA-01

order no. pu-65x08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

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).

Purify-Audio PTT6.5W04-NFA-01

order no. pu-65w04-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

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).

Purify-Audio PTT6.5W08-NFA-01

order no. pu-65w08-nfa

EUR 429,00 excl. VAT: € 360.50 / $ 392.95

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

PDF data sheet

Passive Radiators

Purify-Audio PTT4.0PR-NF2-01

order no. pu-40pr-nf2

EUR 99,95 excl. VAT: € 83.99 / $ 91.55

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

Purify-Audio PTT6.5PR-NF1-01

order no. pu-65pr-nf1

EUR 125,00 excl. VAT: € 105.04 / $ 114.50

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

Mids Woofer Passive Radiators

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.