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Roksan K2 Amp/CD + Spendor S3/5R2

Quick Overview

The multi award winning Spendor S3/5 loudspeaker was launched in 1997. It rapidly achieved worldwide recognition among discerning audiophiles and critical reviewers as a natural and more neutral sounding successor to the legendary BBC designed LS3/5A mini‐monitor loudspeaker. Ten years later an improved S3/5R was introduced.

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£2,299.00

Roksan K2 Amp/CD + Spendor S3/5R2

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Description

Spendor S3/5R2

With a new bass‐mid drive unit and a new crossover network the S3/5R achieved what many thought impossible – new levels of transparency and imaging coherency, a more articulate bass delivery, while retaining the enjoyable fatigue free listening experience which so clearly distinguished the original Spendor S3/5 from other small loudspeakers. Today the S3/5R is also recognised as a small, versatile, modestly priced loudspeaker that consistently delivers a highly enjoyable listening experience and works well with a wide variety of ancillary equipment, from analogue to digital and tube to solid state. With the launch of the new S3/5R2, Spendor takes another huge step forward with this enduring classic design. The new Spendor S3/5R2 benefits from substantial technical advances which have been successfully proven in recent Spendor designs like the SA1 and other Classic R2 models. It maintains the charm and enjoyable music making qualities of the original S3/5’s while delivering significant improvements in low frequency articulation, dynamics, power handling, transparency and sound integration. Like its predecessors it has a fine technical performance and a natural even sound balance.

The S3/5R2 is a 2‐way infinite baffle stand‐mount design with a new 14cm Spendor bass‐mid drive unit. The drive unit has machined magnet pole plates to increase cone excursion and power handling, and to reduce thermal compression. The ep39 polymer cone with phase correction technology gives an even and extended high frequency response. This allows the crossover frequency to the tweeter to be set very high, beyond the frequency range in which the ear is sensitive to transition effects, which ensures seamless sound and a clearly defined stereo image. The new 22mm wide‐surround tweeter combines the extended frequency response of a small diaphragm with the low frequency characteristics of a larger diaphragm to give stable low distortion response over a very wide frequency range. A meticulously engineered phase linear crossover network integrates the drivers seamlessly.

The network is mounted on a non‐resonant panel. Single wiring via a pair of insulated gold plated terminals ensures uncompromised performance and consistent sound. High linearity audio grade capacitors and an easy to drive 8 ohm load guarantee complete compatibility with a wide range of amplifiers from solid state to the most esoteric tube designs. The S3/5R2 combines a ‘Classic’ Spendor thin‐wall damped cabinet panel structure with controlled bracing. The cabinet is now constructed using different panel thicknesses. Each panel is designed to have a specific resonant characteristic and the different natural resonances combine evenly to dissipate any vibration. The result is you don’t hear any unnatural sound from the cabinet.

High electrical driver damping and a non‐ported enclosure allows the S3/5R2 to be installed close to a wall. If you prefer not to use a stand it will sound excellent on an open shelf or wall bracket. The new S3/5R2 is an ideal surround/rear loudspeaker for combination with other Spendor loudspeakers. A special S3/5R2 wall, with wall bracket included, is available. It supersedes and out‐performs the highly regarded Spendor SR5.2 on wall loudspeaker. Spendor S3/5R2 is available in light oak, dark walnut, cherry and black ash natural veneer finishes.

Roksan K2 Amp

K2 integrated is designed and refined to what would be expected of amplifiers classified as hi-end and costing twice its price. The new K2 sounds far more accurate, more delicate and even more powerful than its award winning predecessor the Kandy L.III.

True dynamics and musical capabilities of the K2 enhance the enjoyment and provide insight to all types of music. The sound stage and musicians have the realistic ‘sound’ and ‘air’ about them that is achieved by the highest class amplifiers around.

Thanks to its superior design and use of highest quality components, the K2 sets a new standard for true hi-end entry level amplification. The new K2 integrated benefits from totally revised amplifier internals. The mains transformer and amplifier’s 3 AC/DC circuitry are now separated and moved to two sides away from the pre and amplifier main circuits thus dramatically reducing noise interference. After rectification circuitry, the power supply layout, distribution and tracking to different sections of the amplifier have been optimised and internal wiring minimised to ensure all sections work at their best. 

Roksan K2 CD

Kandy K2 CD Player is an ideal source component that gives a gusty and impressive performance with excellent rhythmic control. The sheer weight of the dynamics provides plenty of attack, whilst the excellent ability to extract detail from the disc ensures each individual performer is easily distinguished. Vocal refinement combined with a realistic soundstage, uniquely create that centre seat experience.

Specification

S3/5R2 loudspeaker

Description 2 way stand or open‐shelf mounted loudspeaker
Enclosure type Sealed
HF drive unit 22mm wide‐surround dome
MF/LF drive unit Spendor 140mm ep39 cone
Sensitivity 85dB for 1 watt at 1 metre
Crossover frequency 4.2 kHz
Frequency response 75 Hz to 20 kHz ± 3dB anechoic
Frequency range ‐6dB at 60Hz typical in‐room
Impedance 8 ohms nominal
Impedance minimum 6.2 ohms
Power handling 100 watts unclipped programme
Terminals Gold plated 4 way binding posts single‐wired
Cabinet (HxWxD) 305 x 165 x 190mm exc terminals
Finish Black ash, cherry, light oak, dark walnut
Weight 4.6 kg each
Stand height 500‐600mm [stand not supplied] Please call if required

K2 Integrated Amplifier

Inputs Line Level (x5), Moving Magnet (x1), Tape (x1), Bypass (x1)
Input Impedance 47 kΩ
Input Sensitivity (70W) (120W) Line 470mV
Line Outputs Tape, Preamplifier (x2)
Output Voltage 240mV (Tape Out)
700mV (Pre Out)
Power Outputs Loudspeaker, L & R
Output Power >125 Watts, into 8 Ohms
both channels driven
>190 Watts, into 4 Ohms
both channels driven
Power Supply 500VA Ultra Low Noise Toroidal Transformer
4 Regulated Supply Rails
Current Output 50 Amps Peak to Peak
Damping Factor >110 (8 Ohms)
Frequency Response (-3dB), <3Hz – >100kHz
Gain 37.3dB Overall (Pre & Power)
5.7dB Preamplifier
31.6dB Power Amplifier
Harmonic Distortion <0.005% 1kHz - 8 Ohms
Signal to Noise Ratio 100dBa (ref 470mV)
Power Source 100V – 120V 50Hz / 60Hz
220V – 240V 50Hz / 60Hz
Power Consumption StandBy <25W, Full Power 2-CH 8Ohms< 330 W, 4Ohms<550W
Dimension 432 x 380 x 90 (W x D x H) mm
432 x 380 x 102 (including feet)
Weight 14 Kg

K2 CD Player

Operating System CD digital audio system (CD, CD-R, CD-RW)
Frequency Response 20Hz – 20kHz ± 0.2dB
Harmonic Distortion < 0.0025% @ 0dB, 1kHz
< 0.008% @ -30dB, 1kHz
< 0.015% @ 0dB, 20kHz
Intermodulation Distortion < 0.0015% @ 0dB
S/N Ratio (IHF-A Wtd.) 105 dB
Wow & Flutter Quartz precision
Channel Separation 100 dB @ 1kHz
80 dB @ 20kHz
Output Voltage 1.9Vrms
Digital Outputs 75 Ohm Coaxial, RCA
110 Ohm Balanced AES/EBU, XLR
Optical, Toslink
D/A Conversion PCM1730E Advance Segment, Audio-Stereo DAC
Resolution/Sampling 24 bits / 192 kHz
Oscillation 3rd Overtone Oscillation
Crystal Super precision, custom made
Jitter <250 psec
Idle Pattern <-110 dB
Stop band Rejection <-75 dB
Power Supply High performance low noise toroidal transformer
7 fully regulated power rails
Power Source 100V – 120V 50Hz / 60Hz
220V – 240V 50Hz / 60Hz
Power Consumption < 15 W
Dimension 432 x 380 x 90 (W x D x H) mm
432 x 380 x 105 (including feet)
Weight 9Kg