BMW Group
VM-42
June 2007

1/2

677 Hi-Fi System Professional

E81/E82/E87, E90/E91/E92/E93, E60/E61, E63/E64, E65/E66, E83, E85/E86, E70

677 Hi-Fi System Professional

Overview

Product description

The extravagant BMW HiFi system, Professional
LOGIC7/DSP, offers you stunning HiFi quality and
an exceptional listening experience.

Your benefits

• Digital audio signal processing for processing 2-

channel stereo signals into multi-channel signals
(LOGIC7 and LOGIC5).

• Full-bodied, transparent sound quality featuring

expressive basses and brilliant trebles.

• Perfect spatial sound at all seats (with the vehicle

closed), even for stereo signals.

• Greater depth of sound, even at low volumes.

• High-quality reproduction in all audio formats

that are currently available.

Technical information

Funktion im Detail

HiFi-System Professional LOGIC7 (E90/91, E60/61,
E63, E65, E70)

HiFi-System Professional LOGIC7 – 5 Channel
(E93, E64)

Further optimisation of the sound quality of the
midrange and treble loudspeakers with aluminium
membranes

has

lead

to

noticeably

more

differentiated sound quality as compared to the HiFi
system. The harmonious spatial sound is generated
by the additional centre loud speaker and the new
LOGIC 7 equalising concept. Additional midrange
loudspeakers in the rear doors (in the E64 on the
rear sides) ensure excellent spatial sound in the rear
of the vehicle. The increased power output allows
for a higher maximum volume at a level of 110 dB
without distortion. The effect of driving noises is
automatically compensated by sensitive speed-
dependent equalising in the bass range.

Loudspeakers

4 treble loudspeakers, aluminium coating,
ceramicised, D=28mm

1 centre loudspeaker, aluminium membrane,
D=100mm

4 midrange loudspeakers, aluminium membrane,
D=100mm (E64))

6 midrange loudspeakers, aluminium membrane,
D=100mm (E60/61, E63, E65)

7 midrange loudspeakers, aluminium membrane,
D=100mm (E90)

2 central bass loudspeakers, Neodym driver,
D=217mm

Amplifier:

9-channel power amplifier with active crossover
network and vehicle-specific equalising

Power output: (for 10% distortion)

Midrange/treble range 7 x 40 Watt

Bass 2 x 70 Watt

BMW Group
VM-42
June 2007

2/2

677 Hi-Fi System Professional

E81/E82/E87, E90/E91/E92/E93, E60/E61, E63/E64, E65/E66, E83, E85/E86, E70

677 Hi-Fi System Professional

Professional HiFi system for E85, E83

High quality loudspeaker components in the Top
HiFi system ensure that the reproduction of music in
the Roadster becomes a listening experience.
Specially-developed subwoofers using Carver
technology are used for the bass reproduction.
These provide an ex-tremely sturdy bass repro-
duction without being intru-sive. The increased
power output allows for a higher maximum volume
without distortion at a level of 120 dB, beginning at
40 Hz. The effect of driving noises is automatically
compensated by infinitely variable speed-dependent
equalising in the bass range.

Loudspeakers

2 treble loudspeakers, silk dome tweeter, D=30mm

2 mid-treble range loudspeakers, D=40mm

2 midrange loudspeakers, D=55mm

4 bass loudspeakers, D=130mm

2 subwoofers, D=130mm

2 treble loudspeakers, aluminium membrane,
D=28mm

4 midrange loudspeakers, aluminium membrane,
D=100mm

2 bass loudspeakers, D=160mm

2 subwoofers using Carver technology, D=160mm

Amplifier

10-channel power amplifier with active crossover
network, vehicle-specific equalising and digital signal
processing

Power output (for 10% distortion)

Treble 2 x 25 Watt

Midrange 4 x 25 Watt

Bass 2 x 40 Watt

Subwoofer range 2 x 125 Watt

Professional HiFi system for E81/E82/E87

Loudspeakers

4 midrange loudspeakers, D= 100mm

4 treble loudspeakers, D= 28mm

2 central woofers, D= 217mm

Amplifier

9-channel power amplifier with active crossover
network and vehicle-specific equalising

Power output (for 10% distortion)

Midrange / treble 7 x 40 Watt total

Bass 2 x 70 Watt

Benefits / notes

• By using multichannel loudspeaker systems, the

frequency range can be distributed over several
loudspeakers, providing a clearer and more
differentiated transmission of bass, midrange
and treble frequencies and a full-bodied sound
due to forceful basses and brilliant trebles.

• Stereo sound at all seats without requiring

changes to the balance adjustment thanks to an
optimal orientation of the loudspeakers in which
the directional characteristics and the distances
complement one another.

• Equalising function for individualisation of the

sound quality.

• The

complex

signal

processing

system

maintains uniform sound quality at all driving
speeds.

• Fully compatible with the BMW radio units and

the

requirements

for

electromagnetic

compatibility.