Wavecor WF275BD01 Glass Fiber High End Bass 10"

Wavecor WF275BD01 Glass Fiber High End Bass 10"

Wavecor WF275BD01 Glass Fiber High End Bass 10"

The 10.75” transducers WF275BD01 (4 ohm) and WF275BD02 (8 ohm) were designed as high performance bass/midrange units for monitors and high-end hi-fi speakers.

power handling (continuous/programme) = 180 W
frequency range = 30-3000 Hz
resonance frequency fs = 27 Hz
impedance R = 4 Ohm
sound pressure level SPL = 90 dB (2,83V; 1m)

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Wavecor WF275BD01 Glass Fiber High End Bass 10"

The 10.75” transducers WF275BD01 (4 ohm) and WF275BD02 (8 ohm) were designed as high performance bass/midrange units for monitors and high-end hi-fi speakers. They offer outstanding extended bass performance and overall dynamic and detailed reproduction.
Ideal for multi-way constructions they additionally offer designers the rare opportunity of working with 10” 2-way solutions if paired with a suitable tweeter, like for instance some of the Wavecor 30 mm units.

Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
Copper cap on center pole to reduce voice coil inductance and to minimize variations in voice coil inductance as a function of voice coil position
Cone made of a new paper/glass fiber mix with improved consistency and stability
Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
Vented voice coil former for reduced distortion and compression
Vented center pole with dual flares for reduced noise level and compressions at large cone excursions
Heavy-duty black fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
Large motor with 39 mm voice coil diameter for better control and power handling
Built-in alu field-stabilizing ring for reduced distortion at high levels
Low-loss suspension (high Qm) for better reproduction of details and dynamics
Black plated motor parts for better heat transfer to the surrounding air
Conex spider for better durability under extreme conditions
Gold plated terminals to ensure long-term trouble free connection

Notes	Parameter	WF275BD01		WF275BD02		Unit
Notes	Parameter	Before burn-in	After burn-in	Before burn-in	After burn-in	Unit
	Nominal size	10.75		10.75		[inch.]
	Nominal impedance	4		8		[ohm]
	Recommended max. upper frequency limit	1.5		1.5		[kHz]
1, 4	Sensitivity, 2.83V/1m (average SPL in range 200 - 1,000 Hz)	90		87		[dB]
2, 4	Power handling, short term, IEC 268-5, no additional filtering	1,800		1,800		[W]
2, 4	Power handling, long term, IEC 268-5, no additional filtering	450		450		[W]
2	Power handling, continuous, IEC 268-5, no additional filtering	180		180		[W]
	Effective radiating area, Sd	312		312		[sq.cm]
3, 4, 6	Resonance frequency (free air, no baffle), Fs	27		28		[Hz]
	Moving mass, incl. air (free air, no baffle), Mms	57		54		[g]
3, 4	Force factor, Bxl	8.9		11.8		[N/A]
3, 4, 6	Suspension compliance, Cms	0.59		0.59		[mm/N]
3, 4, 6	Equivalent air volume, Vas	81.5		81.5		[lit.]
3, 4, 6	Mechanical resistance, Rms	0.85		0.85		[Ns/m]
3, 4, 6	Mechanical Q, Qms	11.6		11.3		[-]
3, 4, 6	Electrical Q, Qes	0.38		0.47		[-]
3, 4, 6	Total Q, Qts	0.37		0.45		[-]
4	Voice coil resistance, RDC	3.1		6.8		[ohm]
5	Voice coil inductance, Le (measured at 10 kHz)	0.14		0.23		[mH]
	Voice coil inside diameter	39		39		[mm]
	Voice coil winding height	23		23		[mm]
	Air gap height	5		5		[mm]
	Theoretical linear motor stroke, Xmax	+/-9		+/-9		[mm]
	Magnet weight					[g]
	Total unit net weight excl. packaging					[kg]
3, 4, 5	Krm					[mohm]
3, 4, 5	Erm					[-]
3, 4, 5	Kxm					[mH]
3, 4, 5	Exm					[-]