ProAc Response 2.5

ProAc Response 2.5

Clone 2.5

R2.5 Clone

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ProAc Response 2.5 原版
Specifications
Description: Two-way, reflex-loaded, floorstanding loudspeaker.
Drive-units: ¾" fabric-dome tweeter, 7" carbon-fiber–impregnated paper-cone midrange/woofer.
Impedance: 8 ohms nominal.
Sensitivity: 86dB/W/m.
Dimensions: 42" H by 83/4" W by 10" D.
Price: $4500/pair (1996); no longer available (2005). Approximate number of dealers: 35.
Manufacturer: ProAc, Highpoint House, Riding Road, Buckingham Road Industrial Estate, Brackley, Northamptonshire NN13 7BE, UK. Tel: (44) 1280-700147. Fax: (44) 1280-700148. US distributor: Modern Audio Consultants, 112 Swanhill Court, Baltimore, MD 21208. Tel: (410) 486-5975. Fax: (410) 403-8675.
Web: www.proac-loudspeakers.com.


由Stewart.Tyler設計，銷售時間約在1996-2003年間，2003年被Proac D25取代. 本地定價 NTD 22萬 實售約 NTD 15萬.
歲月越久2.5 clone 的資料好像越少了, 趕緊多留些下來自己參考

Speaker-Box design On-Line

關於仿貴族R2.5箱子的實做及一些粗淺的看法

ProAc Response 2.5 loudspeaker Measurements link

30-25KHz (30Hz -6db)

Description: Two-way, reflex-loaded, floorstanding loudspeaker. Drive-units: ¾" fabric-dome tweeter, 7" carbon-fiber–impregnated paper-cone midrange/woofer. Impedance: 8 ohms nominal. Sensitivity: 86dB/W/m.
Dimensions: 42" H by 83/4" W by 10" D. (1020 H * 225 w * 255 D )
Serial numbers of pair reviewed: P 07563.
Price: $4500/pair (1996); no longer available
Manufacturer: ProAc  Web: www.proac-loudspeakers.com.

HF driver

Tweeter Sacn-Speaker D2010/851300 19mm (3/4") dome

KEY FEATURES:

— 3/4" Textile Dome Diaphragm 

— Diffraction Damping Foam Front 

— Ferro Fluid 

— Wide Dispersion 

— Dual Rear Chamber

T-S Parameters

Resonance frequency [fs] 800 Hz

Mechanical Q factor [Qms] 1.26

Electrical Q factor [Qes] 1.24

Total Q factor [Qts] 0.63

Force factor [Bl] 2.4 Tm

Mechanical resistance [Rms] 1.00 kg/s

Moving mass [Mms] 0.25 g

Suspension compliance [Cms] 0.16 mm/N

Effective diaph. diameter [D] 22 mm

Effective piston area [Sd] 3.8 cm²

Equivalent volume [Vas] 0.01 l

Sensitivity (2.83V/1m) 88 dB

Ratio Bl/√Re 1.01 N/√W

Ratio fs/Qts 1280 Hz

Electrical Data

Nominal impedance [Zn] 8 Ω

Minimum impedance [Zmin] 6.4 Ω

Maximum impedance [Zo] 11.5 Ω

DC resistance [Re] 5.7 Ω

Voice coil inductance [Le] 0.08 mH

Power Handling

100h RMS noise test (IEC 17.1)* 90 W

Long-term max power (IEC 17.3)* 150 W

*Filter: 2. order HP Butterworth, 4 kHz

Voice Coil and Magnet Data

Voice coil diameter 19 mm

Voice coil height 3.1 mm

Voice coil layers 2

Height of gap 2 mm

Linear excursion ± 0.7 mm

Max mech. excursion ± 1.2 mm

Unit weight 0.4 kg

LF driver

Mid-Woofer Scan-Speaker 18W/8535-00 Carbon fiber paper, 178mm (7")

KEY FEATURES:

— Patented Symmetrical Drive Motor Design 

— Air Dried Paper/Carbon Fibre Cone 

— 38mm Voice Coil 

— Low-Loss linear suspension 

— Low Damping SBR Rubber Surround 

T-S Parameters

Resonance frequency [fs] 26 Hz

Mechanical Q factor [Qms] 2.50

Electrical Q factor [Qes] 0.45

Total Q factor [Qts] 0.38

Force factor [Bl] 5.7 Tm

Mechanical resistance [Rms] 1.01 kg/s

Moving mass [Mms] 15.5 g

Suspension compliance [Cms] 2.42 mm/N

Effective diaph. diameter [D] 136 mm

Effective piston area [Sd] 145 cm²

Equivalent volume [Vas] 71.2 l

Sensitivity (2.83V/1m) 86.5 dB

Ratio Bl/√Re 2.37 N/√W

Ratio fs/Qts 68 Hz

Electrical Data

Nominal impedance [Zn] 8 Ω

Minimum impedance [Zmin] 6.8 Ω

Maximum impedance [Zo] 38.0 Ω

DC resistance [Re] 5.8 Ω

Voice coil inductance [Le] 0.3 mH

Power Handling

100h RMS noise test (IEC 17.1) 70 W

Long-term max power (IEC 17.3) - W

Voice Coil and Magnet Data

Voice coil diameter 38 mm

Voice coil height 15 mm

Voice coil layers 2

Height of gap 5 mm

Linear excursion ± 5 mm

Max mech. excursion ± 10 mm

Unit weight 1.1 kg