805 D4 Signature

805 D4 Signature features our Diamond Dome tweeter and Solid Body Tweeter-on-Top.

Compact and powerful

The 805 D4 Signature stand-mount loudspeaker is compact and powerful. It features fully optimized technologies, including our Diamond Dome tweeter and Solid Body Tweeter-on-Top. It's proof positive that small can still be beautiful.

Diamond Dome tweeter

One of our most significant accomplishments over the past two decades, the ultra-stiff, supremely accurate Diamond Dome tweeter is the perfect combination of low mass, exceptional stiffness, and outstanding accuracy. Fifteen years after we introduced it, we haven't found a better tweeter dome technology.

All-new tweeter grille

Our Solid Body Tweeter-on-Top housing features an elongated form with a longer tube-loading system and an all-new design of tweeter grille, producing an even more free and open sound with high frequencies.

Upgraded crossover

Our 805 D4 Signature uses upgraded rear-mounted crossover designs mounted on stiff aluminum spines. This isolates the sensitive capacitors from the unwanted effects of air pressure within the enclosure and makes for a very effective heatsink to ensure optimum performance when in use.

Upgraded crossover

Thanks to its composite construction, the Continuum Cone avoids the abrupt transitions in behaviour that can impair the performance of a conventional drive unit. The result is a more open, neutral performance from the 805 D4 Signature. Voices and instruments can be heard with precision and transparency.

Specifications

Size & Weight

• Net Weight: 15.55 kg (34.3 lb)
• Dimensions (Height x Width x Depth):
  • Height: 440 mm (17.3 in)
  • Width: 240 mm (9.4 in)
  • Depth: 373 mm (14.7 in)

Technical Features

• Diamond Tweeter: Provides high-frequency clarity and detail.
• Solid Body Tweeter-on-Top: Enhances high-frequency performance and soundstage imaging.
• Continuum Cone Bass/Midrange: Ensures clean, natural bass and midrange reproduction.
• Matrix: Internal bracing to reduce vibrations and enhance sound purity.
• Anti-Resonance Plug: Helps reduce cabinet resonances.
• Flowport: Reduces port turbulence for smoother bass response.

Description

• Type: 2-way vented-box system.

Drive Units

• High-Frequency Driver: 1 x 25mm (1in) Diamond Dome Tweeter.
• Midrange/Bass Driver: 1 x 165mm (6.5in) Continuum cone bass/midrange driver.

Performance

• Frequency Range: -6dB 34Hz to 35kHz.
• Frequency Response: 42Hz to 28kHz 3dB.
• Nominal Impedance: 8 (minimum 4.6).
• Sensitivity: 88dB spl (2.83Vrms, 1m).

Harmonic Distortion

• 2nd and 3rd Harmonics (90dB, 1m on axis):
  • <1% 90Hz - 20kHz.
  • <0.3% 120Hz - 20kHz.

Amplifier Recommendations

• Recommended Amplifier Power: 50W - 120W into 8 on unclipped programme.
• Max Recommended Cable Impedance: 0.1.

Finishes

• Cabinet Finishes:
  • California Burl Gloss.
  • Midnight Blue Metallic.
• Grille Finishes:
  • Black.