Punch BP 15/250

General Characteristics for 8Ω
Nominal Overall Diameter385 mm.15 in.
Nominal Voice Coil Diameter65 mm.2.50 in.
Magnet Weight1450 g51.20 oz
Overall Weight11.90 lbs
Flux Density1.15 T
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE6.60 Ω
Resonance FrequencyƒS47.0 Hz
Mechanical Q FactorQMS4.26
Electrical Q FactorQES0.57
Total Q FactorQTS0.51
Mechanical Moving MassMMS69.7 g
Mechanical ComplianceCMS164 µm/N
Force FactorBxL15.31 Wb/m
Equivalent Acoustic VolumeVAS133.1 lt.
Maximum Linear DisplacementXMAX±3.40 mm
Excursion LimitXVAR±7.0 mm
Reference EfficiencynO2.30 %
Diaphragm AreaSD754.8 cm2
Voice Coil Inductance @ 1kHzLE1.07 mH
Constructive Characteristics for 8Ω
Voice Coil WindingCopper
Voice Coil FormerAluminum
Cone MaterialPaper
Surround MaterialTreated Cloth
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Electrical Characteristics for 8Ω
Nominal Impedance8 Ω
Rated Power250 W
Musical Power500 W
Sensitivity@1W,1m96.7 dB
250 watts
  • Ohms:

Punch Sound speakers offer great dynamics and super-fast response, giving the player an extremely solid bass sound. Equipped with ferrite magnets and steel baskets, they are ideal for classic styles where a clean, tight and bright sound is required.

Boomy with a well-defined top end.
Sound Samples:
Blues (Walking Groove)00:20https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp15_blues_walk.mp3
Reggae (Smooth Groove)00:23https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp15_irie_0.mp3
Rock (Pick Attack)00:41https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp15_pick_attack_0.mp3
Funk (Slap Attack)00:16https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp15_slap_stick_0.mp3
Having trouble playing our sound samples? Click here to access the files directly.