iFi audio Retro LS3.5 Speakers (Pair)

BH #IFRLS35AP • MFR #302002
iFi audio Retro LS3.5 Speakers (Pair)
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iFi audio Retro LS3.5 Overview

The Retro LS3.5 Speakers from iFi AUDIO features a 1.1" horn-loaded tweeter, which uses a neodymium magnet, and a 4.5" paper cone woofer. The small neodymium magnet structure shifts cavity resonances outside the audible range. Being horn-loaded, it matches with the wideband driver to create a vast sound field. The tweeter is used only at the very top end of the audible range; the whole range from 59 Hz to 8 kHz covering the fundamentals of all instruments except those with very low bass notes and all the formants is covered by the wideband driver, without any electrical or mechanical crossover.

The speaker's arrangement of the crossover for the tweeter (at approximately 10 kHz acoustic crossover) and the tweeter's waveguide, insets it for time-alignment with the wideband driver that further preserves phase/impulse response. The paper cone 4.5" wideband driver perform more like a full-range driver. The wideband driver rolls off after 8 kHz and it reaches down to 59 Hz (with correct placement).

Wideband driver is made of the coated natural paper for quick response and better efficiency
Tweeter is made of transparent organic silk and horn-loaded to create a coherent image with the wideband driver
Cabinet is made from natural sustainable bamboo
Cabinet is an advanced multi-chamber P.G.A.H Voigt tuned enclosure with a low turbulence port to reduce port noise at high levels
Each cabinet is tuned using tuning elements (sound bar and braces) from musical instrument manufacturing
Time-aligned tweeter and wideband driver
Advanced amino-plastic open cell acoustic foam for bass performance and a clean midrange
Maximum surface contact gold-plated copper speaker terminals

iFi audio Retro LS3.5 Specs

90 dB / 2.83 V / 3.3' (1 m)
Frequency Response
59 Hz to 20 kHz
4.5" (115 mm) Paper Cone Wideband Driver
1.1" (28 mm) Silk Dome Tweeter
4 Ohms
10 kHz acoustic crossover
No electrical crossover on wideband driver
First order high-pass on tweeter
Transmission-line port
Solid bamboo enclosure
Acoustic active tuning with minimal damping
5.7 x 10.5 x 8.9" (146 x 268 x 226 mm)
7.7 lb (3.5 kg)
Packaging Info
Package Weight
18.06 lb
Box Dimensions (LxWxH)
16.2 x 13.1 x 12.3"

iFi audio Retro LS3.5 Reviews

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