Roksan Audio RADIUS 7 User manual

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
1
RADIUS 7
MANUAL

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
2
Congratulations on your purchase of the Roksan Radius 7
record player. This record player is designed and
manufactured to the highest specification and rigorously
tested to reward you many years of listening pleasure.
Your Radius 7 record player is at the heart of your vinyl replay
system. Its correct installation, set-up and operation will have a
profound influence on the sonic performance of your
complete audio system.
Please read the contents of this manual thoroughly. It will help
you to understand your record playing equipment better and
enhance your listening pleasure.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
3
BRIEF
The design of the Radius 7 record player has many unique features not found in other similar
turntables. The drive mechanism utilises an advanced custom motor fitted with a
precision-machined solid aluminium alloy pulley. The main bearing housing and spindle are
custom designed and machined from solid brass and solid stainless steel to extremely high
precision to ensure ultra smooth running and longevity. The platter is machined from solid
acrylic to very high accuracy and ensures speed stability. Main bearing, platter and tonearm
are mounted on the sub plinth and three point de-coupled from the main plinth to
maximise performance and minimise acoustic break through. The motor assembly is
mounted on the motor block and then onto the main plinth and further decoupled to avoid
motor noise break through. The tonearm cable is rigidly fixed to the main plinth that acts as
a mechanical ground and minimises interference with the sub plinth. The Radius 7 has three
custom made adjustable spike feet to allow levelling and provide optimum coupling to the
surface that it sits on. Partnered with the NIMA tonearm, the Radius 7 gives unparalleled
performance in this class.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
4
PACKAGING
Your Radius 7 is carefully and thoughtfully packed so that the packaging can be re-used
Whenever you need to transport it. Please store all the packaging material for future use.
WARNING:
The NIMA tonearm is shipped without its counterweight attached and locked in transit
position. It is also secured onto the arm rest with a releasable tie. Please refer to the NIMA
user manual for its correct installation and setup.
PLATTER
TOP PACKING
TRAY
RADIUS 7
BOTTOM
PACKING TRAY
CARTON
TONEARM
CABLE
BELT

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
5
ASSEMBLY
Remove the Radius 7 from its protective bag. If the Radius 7 is fitted with the NIMA tonearm,
be extra careful not to damage the arm while you are assembling the record player. If in
doubt, remove the tonearm (refer to the NIMA user manual).
Adjust the feet using locknut to ensure the
Radius 7 is absolutely level.
Remove the platter, with the record label recess upper most, carefully locate its central hole
over the main bearing spindle and gently lower it until the two are fitted together.
Check that the voltage label indicates the
correct voltage range and frequency for your
mains supply.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
6
Remove the drive belt and gently place it around the platter and then onto the pulley. It is
important to check that your mains supply frequency corresponds to the frequency specified
on the Radius 7 mains input label.
NOTE:
The main bearing is already charged with correct type of oil & grease and it is important that
the main bearing spindle is not removed from the bearing housing. This will disperse
some of the oil and necessitate charging the main bearing with oil again. The main bearing
requires cleaning with a cotton bud and recharging with Roksan supplied bearing oil every
6-12 months. Consult your Roksan appointed retailer/distributor or contact Roksan Audio for
any assistance.
Finally, for assembling and fitting of your tonearm and cartridge, refer to the manufacturer’s
user manual.
IMPORTANT:
The Radius 7 is mains operated. DO NOT try to gain access to the inside of this unit. Refer all
servicing to your Roksan appointed retailer/distributor or contact Roksan Audio.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
7
INSTALLATION
Place the Radius 7 on a rigid level surface. The arm cable should be securely fixed into the
base of the tonearm and connected to the phono input of the amplifier without pulling on to
the Radius 7. It is important to ensure the phono input is matched with the type of cartridge
you are using and that the tonearm cable ground lead is firmly attached to the phono input
grounding point on the amplifier.
To ensure correct geometry, tracking weight and anti-skate force, the cartridge/tonearm
should be assembled according to manufacturer’s instructions.
Connect the power lead to the correct voltage/frequency mains supply and switch the
Radius 7 on. The platter will start to rotate at the speed corresponding to the speed selected
(33 or 45rpm). In most countries, 220- 240Vac mains supplies are at 50Hz and 110-120Vac
mains supplies are at 60Hz. If you are unsure of your mains supply frequency, consult your
local electricity supplier.
NOTE:
Always remove the platter before moving/transporting the Radius 7. If fitted with the NIMA,
remove the counter weight assembly, lock the NIMA in transit position and secure it with the
releasable tie-wrap to its arm rest.
NOTE:
Clean the belt using only a slightly damped cloth and secure it with the releasable tie-wrap to
its arm rest.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
8
OPERATION
Your Radius 7 record player is now ready for use. Switch the Radius 7 on using the POWER
button (A) and ensure the correct speed is selected by pressing the 33/45 button (B). Blue
indicates 33RPM, red 45RPM. When the LED is flashing, the turntable is coming up to speed
and stabilising. This occurs upon power-on or when you select a new speed and will take 3-5
seconds before the speed is stable.
Ensure that the amplifier volume is set to low and that the correct input for phono is selected.
Gently increase the volume and check for any unwanted hum/noise. Now check the hum
level with the amplifier at high volume. There should be no hum or very low level of hum
audible (remember to lower the volume afterwards). If so, gently lower the arm/cartridge
onto the track you want to listen to and enjoy the music.
AC Mains Power Switch (A)
33 / 45 Speed Switch (B)
Pulley Groove

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
9
TROUBLESHOOTING
If you suspect that your Radius 7 record player is not working correctly, first check all the
connections. Pay particular attention to cartridge tag connections, (channel & phase),
tonearm cable connections (phono RCAs & ground) and mains lead connection. Below are
some commonly encountered problems with suggestions for possible cure. The list is not
exhaustive: If you have any unresolved problems, please consult Roksan.
SYMPTOM LIKELY CAUSE SUGGESTED REMEDY
No power • AC Mains lead not
inserted properly
• Unit not switched on
• Ensure AC Mains lead is
fully inserted
• Switch unit on
Wrong speed • Incorrect speed selection • Check playing speed
of record and choose
correct motor speed
Hum from speakers • Tonearm cable ground
not connected or
incorrect grounding
• Connect tonearm cable
ground lead to phono
amp ground terminal
• Check mains polarity
and grounding on all
connected equipment
Mis-tracking and poor sound
quality
• Alignment problem • Check arm/cartridge
set-up (refer to manufac-
turer’s user manual)

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
10
GUARANTEE
There are no user serviceable parts inside your Roksan Radius 7. If a fault should develop,
refer any servicing to your appointed Roksan dealer, distributor or Roksan approved service
agent.
Your Roksan Radius 7 is guaranteed against any defect in materials and workmanship for a
period of five years from the date of purchase. This guarantee only becomes effective if the
Radius is warranty registered at Roksan.
This guarantee excludes:
• Damage caused due to accident, misuse, neglect and incorrect installation, adjustment or
repair.
• Liability for damage or loss during transit from the retailer or purchaser to Roksan or its
authorised distributor for the purposed for repair or inspection.
Carriage costs to Roksan shall be borne by the consignor.
All claims under this guarantee must be made through an authorised Roksan retailer.
If equipment returned for repair to Roksan is found on inspection to comply with the product
specification Roksan reserves the right to make a charge for
examination and return carriage.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
11
SPECIFICATIONS
Main Bearing Spindle Precision machined stainless steel
Main Bearing Housing Precision machined solid brass
Main Bearing Ball Precision case hardened steel
Pulley Precision machined aluminium alloy
Platter Precision machined acrylic
Motor Custom made 24 pole synchronous
Speed 33 & 45 rpm
Power 90-240V 50-60 Hz
Rumble <-75dB
Wow & Flutter <0.04%
Dimension 400 x 350 x 150mm (W x D x H)
Weight 7kg
All specifications are liable to change without prior notice. E & O.E.

ROKSAN AUDIO
Roksan Audio Ltd, Jubilee Close, Townsend Lane, London, NW9 8TR, United Kingdom
Website: www.roksan.co.uk | email: [e-mail]
Tel: [phone] | Fax: [phone]
Registered in England | Number: 3089229 | VAT Number: 719 3079 23 | Director: T Hashemi
RADIUS 7
Manual
12
Roksan Audio Limited
Jubilee Close
Townsend Lane
London
NW9 8TR
[phone]
[e-mail]
www.roksan.co.uk