Street Sounds Online » Precision Power

Precision Power Powerclass Subwoofers

scott136 — Thu, 23 Nov 2006 22:00:05 +0000

PowerClass® subwoofers offer many of the same state of the art features as the flagship DCX product, but with more modest power handling and price targets. The heavy gauge steel baskets are tooled to reflect the same cutting-edge industrial design as DCX, while supporting very good excursion driven by less massive conventional motor assemblies. PowerClass subs use the same, ultra-rigid foamed polypropylene cone technology, a good match for the DCX coaxial or component speakers. Their power handling limit is a very strong 500 watts peak, for use in systems with the smaller PCX amplifier models. These subwoofers offer a strong combination of competition-grade performance and good looks, making them a good choice for most mobile audio enthusiasts.

Features:
Heavy gauge deep draw steel basket with proprietary PrecisionPowerfi design
Excellent SQ performance in small sealed or vented enclosures
Tooled rubber wrap-gasket for air-tight seal in front or rear mount applications
Dual 2 or dual 4 ohm models in 10″ and 12″ sizes
Peak power handling 500 watts

Specifications:

Model Number	PC102	PC104	PC122	PC124

Thiele/Small Parameters
Fs (free-air resonance, Hz)	40.33	41.45	35.44	22.5
Vas (equivalent compliance, cu. ft.)	0.576	0.634	1.51	3.56
Vas (equivalent compliance, liters)	16.33	17.96	43.01	101.05
Qms (Q, mechanical)	6.98	6.59	6.5	5.78
Qes (Q, electrical)	0.85	0.88	0.82	0.55
Qts (total driver Q)	0.76	0.77	0.73	0.51
Re (DC resistance, ohms)	3.5	6.75	3.75	7.8
Z (nominal impedance, ohms)	4	8	4	8
Le (inductance, mh)	1.81	2.77	1.95	2.91
Efficiency (1W @ 1M, dB)	82.89	83.47	85.57	85.03
Xmax (one way linear excursion, in.)	0.39	0.55	0.39	0.55
Xmax (one way linear excursion, mm)	10	14	10	14
Pe (continuous power handling, watts)	250	250	250	250
Peak power handling (music, watts)	500	500	500	500
Mms (total moving mass, grams)	157.59	137.59	176.67	186.87
Cms (mechanical compliance, mm/N)	99	109	114	268
Bl (motor strength, Tesla-M)	12.83	16.56	13.39	19.28
Sd (effective radiating area, sq. m.)	0.034	0.034	0.051	0.051
Sd (effective radiating area, sq. in.)	53.16	53.16	80.29	80.29
Frequency range (Hz)	45-2.5k	45-2.5k	40-2.5k	40-2.5k
Energy Bandwidth Product (EBP)	47.45	46.76	43.22	40.91
Model Number	PC102	PC104	PC122	PC124
Driver Physical Dimension
Mounting hole diameter (inches)	9.7	9.7	11.3	11.3
Mounting depth (inches *)	5.5	5.5	6.25	6.25
Basket diameter (inches)	10.65	10.65	12.5	12.5
Model Number	PC102	PC104	PC122	PC124
Recommended Enclosures
Typical sealed enclosure (cu. ft.)	1	1.15	1.45	1.55
SPL sealed enclosure (cu. ft.)	0.42	0.5	0.95	0.81
Low Qtc sealed enclosure (cu. ft.)	1.75	2	2.75	3
Vented enclosure (cu. ft.)	1	1.25	1.5	1.5
Port tuning frequency (Hz)	45	45	45	45
Port diameter (inside, in.)	3	3	4	4
Equivalent square port (in.)	2.65×2.65	2.65×2.65	3.54×3.54	3.54×3.54
Port length (in.)	7.17	5.13	8.06	8.06

Precision Power DCX SUBWOOFERS

scott136 — Thu, 23 Nov 2006 21:53:49 +0000

The DCX (Dynamically Controlled eXcursion) subwoofer continues the PrecisionPowerfi tradition of high performance and innovation that dates back to the flat piston, high-power Pro-series. DCX subs feature a unique new motor design called Dual Gap Geometry or DGG (patent pending) that centers a short, lightweight voice coil between two magnetic gaps. The resulting ultralight moving mass is driven through a far more linear stroke by the flatter, extended magnetic field. Careful balancing of excursion limits and power handling results in what is almost certainly one of the most accurate, high output subwoofers available. Dual spiders on a ventilated spider ring keep the moving mass centered throughout its stroke, and improve airflow for better cooling. The DGG motor assembly uses a cluster of smaller magnets arranged around the vented pole piece as well as a more conventional magnet assembly for the lower half of the motor. All of this results in a subwoofer that maintains extreme linearity and limits distortion while keeping its cool at power input up to 1,000 watts. The new proprietary die-cast basket and other custom-tooled integral parts mean that DCX subs look as sweet as they sound.
Features:
Cutting edge industrial design and technology (patent pending)
Proprietary die-cast basket supports integrated Dual Gap motor assembly
Forced-air cooling via vented spider ring and extended pole piece
Ultra-rigid foamed polypropylene cone and conformally joined Santoprene surround
Proprietary AngleLock wiring terminals accept heavy gauge cabling
Tooled rubber wrap-gasket for air-tight seal in front or rear mount applications
Dual 4 ohm models in 10″, 12″, and 15″ sizes
Continuous power handling 1,000 watts

Specifications:

Model Number	DCX 104	DCX 124	DCX 154
Thiele/Small Parameters
Fs (free-air resonance, Hz)	40.25	35.75	30.48
Vas (equivalent compliance, cu. ft.)	0.59	1.34	3.89
Vas (equivalent compliance, liters)	16.76	38.03	110.27
Qms (Q, mechanical)	6.51	6.67	6.96
Qes (Q, electrical)	0.67	0.77	0.78
Qts (total driver Q)	0.61	0.69	0.7
Re (DC resistance, ohms)	7.57	7.56	6.98
Z (nominal impedance, ohms)	8	8	8
Le (inductance, mh)	3.86	3.81	3.91
Efficiency (1W @ 1M, dB)	84	85.44	87.93
Xmax (one way linear excursion, in.)	0.74	0.74	0.74
Xmax (one way linear excursion, mm)	19	19	19
Pe (continuous power handling, watts)	1000	1000	1000
Peak power handling (music, watts)	1000	1000	1000
Mms (total moving mass, grams)	134.55	162.69	233.27
Cms (mechanical compliance, mm/N)	116	122	117
Bl (motor strength, Tesla-M)	19.62	18.94	19.99
Sd (effective radiating area, sq. m.)	0.032	0.047	0.081
Sd (effective radiating area, sq. in.)	49.67	73.07	127
Frequency range (Hz)	50-2.5k	40-2.5k	30-2.5k
Energy Bandwidth Product (EBP)	60.07	46.43	39.08
Model Number	DCX 104	DCX 124	DCX 154
Driver Physical Dimension
Mounting hole diameter (inches)	9.45	11.25	14.25
Mounting depth (inches *)	6.5	7.75	8.75
Basket diameter (inches)	11.45	13	16.25
Model Number	DCX 104	DCX 124	DCX 154
Recommended Enclosures
Typical sealed enclosure (cu. ft.)	0.6	1.2	2.6
SPL sealed enclosure (cu. ft.)	0.4	0.76	2.25
Low Qtc sealed enclosure (cu. ft.)	1.05	2.9	4.5
Vented enclosure (cu. ft.)	1.15	2.15	2.75
Port tuning frequency (Hz)	50	40	30
Port diameter (inside, in.)	3	4	5
Equivalent square port (in.)	2.65×2.65	3.54×3.54	4.43×4.43
Port length (in.)	4.16	6.64	5.27

Precision Power D3000.1 Amplifier

scott136 — Thu, 23 Nov 2006 21:45:10 +0000

Precision Power again combines its rock-solid PWM regulation with the efficient power delivery of class D. From the all-new 500 watt (Max Power) D500/1 to the potent D3000/1, these four mono block designs are based on extraordinarily robust power supplies with ultra-flexible front ends, all housed in a sleek new industrial design. Extruded top panels extend heat sink heat dissipation across the entire top surface of the amp, improving thermal run times & allowing smaller overall dimensions. Back-lit engraved-metal badging and an interactive illuminated PPI lightning logo that indicates amplifier status complete the advanced look. The massive internally finned main extrusion – a Precision Power hallmark – ensures even heat distribution throughout and an ultra-rigid chassis for stable PCB mounting. Simplified bare wire connections are ensured via the most innovative PowerLock terminal design yet. These proprietary terminals easily accept cabling up to 4 AWG (power) or 12 AWG (speaker) but also offer a unique feature: the terminals come already installed on the end panels and can be used as fixed connections, but can also be removed with a single screw if a detachable connector is your preference.

CLASS D MONO BLOCK MODEL FEATURES

Fully-regulated PWM design for guaranteed power delivery
1 ohm stable – perfect for extreme SQL applications
Externally bridgeable in pairs for extreme power applications
Q BASS™ Plus Remote function

MAX WATTS: 3000W
CEA POWER: 495W x 1
S/N RATIO: >60dB
ADDITIONAL POWER: 1475W x 1
THD+N: >0.2
Freq. Resp.: 20 – 200Hz
Damping Factor: >150
X/O Slope: LP, 30 – 350Hz, 24dB/octave
Fan: No
Q BASS™: Q BASS Plus
Dimensions: 19-3/4″ x 10-1/4″ x 2-5/8″

Precision Power D500.1 Amplifier

scott136 — Thu, 23 Nov 2006 21:38:48 +0000

CLASS D MONO BLOCK MODEL FEATURES

MAX WATTS: 500W
CEA POWER: 125W x 1
S/N RATIO: >70dB
ADDITIONAL POWER: 270W x 1
THD+N: >0.1
Freq. Resp.: 20 – 200Hz
Damping Factor: >250
X/O Slope: LP, 30 – 350Hz, 24dB/octave
Fan: No
Q BASS™: Q BASS Plus
Dimensions: 11-5/8″ x 10-1/4″ x 2-5/8″