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Giussani-Research | Delta 4 R8

Delta 4 R8


Delta 4 R8

Delta 4 R8

Delta 4 R8 systems have 87 dB/2,83 V sensitivity and a maximum handling power of 250 watt rms. The transducers are three for each speaker. The height is 55”. With a 30° orienting of the systems towards the inside of the listening area they can produce an NPS Horizontal acoustic field.
The floor standing Delta 4 R8 systems have original emission characteristics that let them offer a quality of listening well above that of similar or even higher priced traditional competitors. The 10” woofer allows it to reach, with a smaller size, low end performances very similar to that of the Delta 4 R9.
Belonging to the floor standing Delta group guarantees Delta 4 R8 a vertical dimension of the virtual scene and an auto-dimensioning of the acoustic source is impossible to achieve with traditional systems.
The extended and linear frequency response allows a first order tonal neutrality, while the dynamic capacity is adequate to satisfy large domestic listening environments also.
The 8 ohms impedance allows the use of any kind of power amplifiers.
The mid-high section, as for the biggest Delta 4 R10 model, includes push-pull planar transducers only.
Delta 4 R8 have 24 kt gold plated connections for bi-wiring and bi-amping.
Crossover network doesn’t utilise electrolytic capacitors.


Delta 4 R8
Delta 4 R8
Delta 4 R8

Delta 4 R8 technical specifications


Floor standing




1 high excursion GR woofer Ø 10″ rubber surround,
1 planar midrange push-pull neodymium,
1 planar tweeter push-pull neodymium


Linkwitz-Riley/GR (electrolytic capacitors free)

Woofer loading

Acoustic Suspension


87 db SPL standard listening conditions

Nominal Impedance

8 Ohm

Amplifier maximum suggested power

50÷350 watt RMS (no clipping) bi-amping




16.5 W x 55 H x 14 D in


53 lb

Suggested listening distance

>= 7 ft

Rear wall Min/Max distance

Min = 4 in / Max = according to listening room acoustics