Little Diamond

805 D4 might be smaller than its floorstanding siblings, but it’s no lightweight: its beautifully constructed Reverse-Wrap cabinet, stiff aluminium bass pods and 165mm (6.5in) Continuum™ mid-bass cone afford it exceptional bass extension and scale for a relatively compact speaker.

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. 15 years after we introduced it, we haven’t found a better tweeter dome technology.

Solid Body Tweeter assembly

Our newest Solid Body Tweeter-on-Top housing features an elongated form with a longer tube-loading system, producing an even more free and open sound with high frequencies. The carefully decoupled housing is milled from a single solid block of aluminium to better resist resonance.

Rear-mounted crossover

The new reverse-wrap orientation of the cabinet on 805 D4 means we can place its sensitive crossover components inside their own, dedicated space within the cabinet, which has critical benefits to both performance and serviceability. We’ve taken the opportunity to upgrade the speaker terminals, too.

The science of sound

Innovation is at the heart of everything we do. We question, we examine, we understand and then we evolve. We use computer modelling to explore and reimagine every aspect of loudspeaker design. Learn more about all the technologies that combine to make 800 Series Diamond so special here.

Specifications

Size & Weight

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

Technical Features

• Tweeter: Diamond dome, Solid Body Tweeter-on-Top
• Mid/Bass Driver: Continuum™ cone with Anti-Resonance Plug
• Cabinet Design:
  • Matrix™ internal bracing
  • Flowport™ bass reflex system

Description

• System Type: 2-way vented-box system
• Drive Units:
  • 1 x 25 mm (1 in) Diamond dome high-frequency
  • 1 x 165 mm (6.5 in) Continuum™ cone bass/midrange

Performance

• Frequency Range: 34 Hz – 35 kHz
• Frequency Response: 42 Hz – 28 kHz (±3 dB)
• Sensitivity: 88 dB (on-axis at 2.83 Vrms, 1 m)
• Harmonic Distortion:
  • <1% (90 Hz – 20 kHz)
  • <0.3% (120 Hz – 20 kHz)

Electrical Characteristics

• Nominal Impedance: 8Ω (minimum 4.6Ω)
• Recommended Amplifier Power: 50W – 120W into 8Ω (unclipped)
• Maximum Cable Impedance: 0.1Ω

Finishes

• Cabinet Finishes: Gloss Black, White, Satin Rosenut, Satin Walnut
• Grille Finishes: Black, Grey