Punch BP 12/250

General Characteristics for 8Ω
Nominal Overall Diameter318 mm.12 in.
Nominal Voice Coil Diameter65 mm.2.50 in.
Magnet Weight1450 g51.20 oz
Overall Weight10.58 lbs
Flux Density1.15 T
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE6.21 Ω
Resonance FrequencyƒS50.2 Hz
Mechanical Q FactorQMS5.14
Electrical Q FactorQES0.34
Total Q FactorQTS0.32
Mechanical Moving MassMMS46.6 g
Mechanical ComplianceCMS216 µm/N
Force FactorBxL16.40 Wb/m
Equivalent Acoustic VolumeVAS73.5 lt.
Maximum Linear DisplacementXMAX±3.10 mm
Excursion LimitXVAR±5.5 mm
Reference EfficiencynO2.64 %
Diaphragm AreaSD490.9 cm2
Voice Coil Inductance @ 1kHzLE0.94 mH
Constructive Characteristics for 8Ω
Voice Coil WindingCopper
Voice Coil FormerKapton
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,1m97.5 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.

Thick and defined.
Sound Samples:
Blues (Walking Groove)00:20https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp12_blues_walk.mp3
Reggae (Smooth Groove)00:23https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp12_irie_0.mp3
Rock (Pick Attack)00:41https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp12_pick_attack_0.mp3
Funk (Slap Attack)00:16https://www.jensentone.com/sites/jensentone.com/files/sound_samples/bp12_slap_stick_0.mp3
Having trouble playing our sound samples? Click here to access the files directly.