B&C DE880TN – Flagship 1.4-Inch Neodymium Titanium Compression Driver with Redesigned Diaphragm and Optimised Phase Plug
The B&C DE880TN is the most advanced 1.4-inch exit compression driver B&C makes. It combines the 75 mm voice coil, 1.85 T neodymium motor, and 110 W AES power handling of the DE800 with a completely redesigned pure titanium diaphragm featuring a bent edge voice coil former, new dome and surround geometry, and an optimised phase plug — delivering lower distortion, smoother response above 10 kHz, and a 0.5 kHz – 18 kHz bandwidth that reaches a full octave deeper than the DE800.
B&C describes the B&C DE880TN as the latest version of their premium 75 mm voice coil neodymium HF driver. The diaphragm redesign targets the frequency region where titanium is most problematic — above 10 kHz — where dome breakup modes generate the harsh resonant peaks that give titanium its aggressive upper treble. The bent edge former, new dome geometry, new surround geometry, and optimised phase plug work together to control diaphragm displacement and deformations, producing a titanium driver that sounds refined rather than raw.
At 2.15 kg — the lightest 75 mm coil compression driver in B&C’s range — the B&C DE880TN beats the DE800’s already-remarkable 2.3 kg by 150 g. The 0.1 mH inductance is the lowest of any 75 mm coil driver in the catalogue. The 0.5 kHz lower frequency limit matches the DE910TN as the deepest in B&C’s HF range. And the 16 Ω variant adds multi-driver flexibility that the DE800 doesn’t offer.
Every specification that can be improved over the DE800, the B&C DE880TN improves. This is the 1.4-inch compression driver that sits at the absolute top of B&C’s range.
Design and Construction of the B&C DE880TN
The B&C DE880TN uses a 75 mm (3-inch) aluminium voice coil driving a redesigned pure titanium diaphragm through a 1.4-inch (36 mm) exit throat. The 75 mm coil matches the DE800 and DE910 series — the largest coil class in B&C’s HF range — providing the thermal mass for the 110 W AES / 220 W program power handling that leads B&C’s catalogue alongside the DE800 and DE910TN.
The diaphragm redesign is the most comprehensive B&C has applied to any compression driver. Four distinct modifications work together as a system.
The bent edge voice coil former changes the geometry where the coil former meets the titanium dome. The conventional sharp junction creates stress concentrations that promote nonlinear deformation at high excursion. The bent edge spreads this transition across a wider area, allowing the dome to move more symmetrically and producing lower harmonic distortion under load.
The new dome geometry redistributes the breakup modes that titanium exhibits at high frequencies. Conventional titanium domes break up in concentrated patterns that produce sharp resonant peaks — the B&C DE880TN’s dome profile redistributes these modes across a wider frequency band, smoothing the response above 10 kHz where conventional titanium is harshest.
The new surround geometry provides more controlled compliance at the dome’s outer edge, supporting the improved breakup behaviour and contributing to more linear diaphragm motion throughout the excursion range.
The optimised phase plug is the fourth modification — and the one the DE618TN’s redesign didn’t include. The phase plug controls how sound waves travel from the diaphragm surface to the throat exit. An optimised plug reduces path length differences and phase cancellations, producing smoother frequency response and lower distortion through the entire operating bandwidth. The combination of the redesigned diaphragm and the optimised phase plug is why the B&C DE880TN achieves the lowest inductance and widest bandwidth of any 75 mm coil driver in B&C’s range.
The magnetic circuit produces 1.85 T of flux density from a neodymium magnet with a shorting copper cap — matching the DE800 exactly. The 0.1 mH inductance with the copper cap is 29% lower than the DE800’s 0.14 mH, which suggests the optimised phase plug and the redesigned diaphragm’s improved electromagnetic coupling contribute to the lower figure. The 0.1 mH keeps the impedance curve essentially flat through the 18 kHz upper limit — supporting clean crossover behaviour and extended high-frequency response.
At 2.15 kg, 124 mm overall diameter, and 54 mm depth, the B&C DE880TN is the lightest and shallowest 75 mm coil compression driver in B&C’s range. It’s 150 g lighter and 2 mm shallower than the DE800 it shares a body size with. Four M6 mounting holes on a 102 mm bolt circle match the standard professional 1.4-inch pattern.
Performance and Applications for the B&C DE880TN
The B&C DE880TN delivers 108 dB sensitivity across a 0.5 kHz – 18 kHz bandwidth with a recommended crossover frequency of 1.2 kHz. The 108 dB sensitivity matches every other premium 1.4-inch driver in B&C’s range. The 1.2 kHz crossover matches the DE800, DE610, and DE618TN. What separates the B&C DE880TN is the bandwidth and the distortion performance.
The 0.5 kHz lower frequency limit is the deepest of any 1.4-inch compression driver in B&C’s range — matching the DE910TN’s figure from the 1.3-inch exit class. 500 Hz is mid-range territory. The B&C DE880TN produces usable output a full octave below the DE800’s 1 kHz lower limit, which means it can be crossed over lower in systems where the horn supports it, or it provides an additional octave of overlap with the woofer section for smoother crossover transitions with gentler filter slopes.
The 0.5 kHz capability also opens up system architectures where the B&C DE880TN functions as a combined mid-range and HF driver. In a three-way system, it can handle everything from 500 Hz to 18 kHz on a horn — covering the vocal fundamental range, the presence band, and the treble from a single transducer. This eliminates the need for a separate midrange driver in many applications.
The distortion performance above 10 kHz is the B&C DE880TN’s primary qualitative advantage over every other titanium 1.4-inch driver in B&C’s range. The redesigned diaphragm with optimised phase plug produces measurably lower harmonic distortion in the upper treble — the frequency region where titanium drivers are most prone to harsh, fatiguing output. The B&C DE880TN retains titanium’s detail, projection, and transient definition while cleaning up the roughness that conventional titanium exhibits at the top of the range.
For system designers, this means less corrective EQ in the upper treble. The response above 10 kHz is naturally smoother, which simplifies DSP tuning and produces better results in systems running without processing. The B&C DE880TN sounds like a premium titanium driver that’s been professionally EQ’d — except the improvement comes from the diaphragm engineering, not from a parametric filter compensating for dome resonance.
The 110 W AES / 220 W program power handling matches the DE800 and DE910TN as the highest in B&C’s HF range. The 75 mm coil’s thermal mass sustains this rating reliably, and the pure titanium diaphragm handles the mechanical stress of sustained high-power operation without the delamination risk that composite diaphragms can face at extreme temperatures.
The 8 and 16 Ω impedance variants add system design flexibility that the DE800 doesn’t offer. The 16 Ω variant supports multi-driver line array configurations, distributed HF sections, and any system architecture requiring parallel or series-parallel wiring of multiple compression drivers.
Ideal applications for the B&C DE880TN include:
- Flagship touring speaker systems requiring the lowest distortion and widest bandwidth from a 1.4-inch exit
- Line arrays using the 16 Ω variant for multi-driver HF configurations
- Three-way systems where the B&C DE880TN covers 500 Hz to 18 kHz as a combined mid/HF driver
- High-SPL installations where 110 W AES sustained operation is the baseline requirement
- Systems where titanium projection is required without titanium harshness above 10 kHz
- Active systems with DSP where the naturally smooth response simplifies upper treble voicing
- Compact cabinet designs benefiting from the 2.15 kg weight and 54 mm depth
- Applications upgrading from DE800 installations needing wider bandwidth and 16 Ω availability
Specifications – B&C DE880TN
- Throat Diameter: 36 mm (1.4 in)
- Nominal Impedance: 8 Ω
- Minimum Impedance: 8.1 Ω
- Nominal Power Handling: 110 W
- Continuous Power Handling: 220 W
- Sensitivity: 108 dB
- Frequency Range: 0.5 kHz – 18 kHz
- Recommended Crossover: 1.2 kHz
- Voice Coil Diameter: 75 mm (3 in)
- Winding Material: Aluminium
- Inductance: 0.1 mH
- Flux Density: 1.85 T
- Magnet Material: Neodymium
- Diaphragm Material: Titanium (redesigned dome, surround, bent edge former, optimised phase plug)
- Replacement Diaphragm: MMD3DTN8M
- Available Impedances: 8 Ω, 16 Ω
- Net Weight: 2.15 kg (4.74 lb)
Mounting Information – B&C DE880TN
- Overall Diameter: 124 mm (4.9 in)
- Depth: 54 mm (2.13 in)
- Bolt Pattern: Four M6 holes on 102 mm (4 in) bolt circle, 90° apart
Conclusion – B&C DE880TN Compression Driver
The B&C DE880TN is the absolute flagship of B&C’s 1.4-inch compression driver range. It takes the DE800’s proven 75 mm coil platform and improves every metric that can be improved: lighter weight (2.15 vs 2.3 kg), wider bandwidth (0.5 vs 1 kHz lower limit), lower inductance (0.1 vs 0.14 mH), shallower depth (54 vs 56 mm), and 16 Ω availability. The redesigned titanium diaphragm with optimised phase plug delivers lower distortion above 10 kHz than any other titanium driver in B&C’s 1.4-inch range.
The four-part diaphragm redesign — bent edge former, new dome geometry, new surround geometry, and optimised phase plug — represents B&C’s most comprehensive refinement of a compression driver design. The result is titanium that projects like titanium and sounds like it’s been professionally tuned — detail, presence, and transient definition without the harshness that conventional titanium produces in the upper treble.
At 2.15 kg with 110 W AES, 108 dB, 0.5 kHz – 18 kHz bandwidth, and 16 Ω availability, the B&C DE880TN leaves nothing on the table. It is the most powerful, lightest, widest-bandwidth, lowest-distortion, lowest-inductance 1.4-inch titanium compression driver B&C has ever made — and the optimised phase plug ensures it will stay at the top of the range until B&C decides to redesign it again.
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About B&C Speakers S.r.L.
B&C Speakers products are built in Bagno a Ripoli (Florence), Italy., ensuring high quality products to suite your speaker building requirements. Their 10,500 square meter facility incorporates highly sophisticated automation and quality control. Over the years they become one of the world leaders in the Professional Audio market, a brand recognized everywhere as a premium product that offers excellent value to the consumer.
