Vinyl replay systems still provide the most natural and satisfying way of enjoying recorded music. Pure analogue can give a most realistic and relaxed reproduction of the real event compared to the majority of digital systems. There is no question that a select few CD players can come close these days but many do not. Computer based music files, even the highest resolution versions, still do not emulate the sound or the emotional experience of vinyl LPs.
There are many turntables and cartridges manufacturers active on the market today and we have selected the few that meet our musical taste. All our turntables are non-suspended, that is with no sustained bounce, as this design presents the body and weight of a live event with rhythm and dynamics correctly stated. Fine detail is also more easily resolved from the vinyl groove than with sprung turntables.
With this experience we can assist in the selection of the correct turntable combination for your taste and budget. Because of the variety of subtle, and not so subtle, differences between these turntables, tone-arms and cartridges, these are sometimes difficult to express succinctly here. Please feel free to discuss your requirements with us by email or by phone.
We also offer a precise turntable and cartridge set up and service facility. With over 25 years experience of installing and setting up vinyl replay for our customers, we can fine tune to achieve the best possible sound revealing the finest details from your LPs. We have been amazed at how many turntable/cartridges we have encountered that are below optimum of what can be achieved. We can visit your home to do this; please phone for a quotation based on your location.
This vinyl cleaning machine has new technology which makes it the most efficient and most effective LP cleaner on the market.
It uses ultrasonics to excite the cleaning liquid bath that loosens dirt in the grooves. In addition, microscopic bubbles are created where a dirt particles sits at the groove surface that assist further in dislodging solid particles.
The designer, Reiner Glass, has experimented over the years with various levels of ultrasound and has found that a low energy generator is more efficient, and potentially less damaging to delicate vinyl surfaces than a high energy ultrasonic generator. There is a choice of extending the short ultrasound cycle of approximately 90 seconds incrementally by up to 5 times for very dirty LPs.
This contactless method of cleaning removes more dirt than conventional suction methods which most other LP cleaners are based on. In fact this ultrasonic cleaner produces audible improvements in sound quality by cleaning LP previously cleaned with any other LP cleaner.
Both sides are cleaned simultaneously. Completely automatic and simple to use. After a 5-6 minute cycle you have an ultra clean, dry LP.
Ultra clean LPs have a bigger soundstage, more dynamics, a more correct tonal balance, and reveal more detail. Ultra-clean surfaces result in less stylus wear.
Superb results with both older, cherished LPs and with brand new pressings. High quality, reliable German engineering.
NEW IMPROVED VERSION. The new PRO Vinyl Cleaner has improved mechanical designs, including a better drive motor, pump with ceramic bearings and an additional drying process option. Both the cleaning cycle and the drying cycle can now be extended. The efficiency of the ultrasonic cleaning remains the same as the previous version.
There are now 4 colour options: grey, black, white and red: please see gallery for images. The black is more of a dark grey than solid black. Until we can gauge demand, we will be majoring on the grey and black, with small number of white, for stock. Red will be to order only.
Due to dramatic fall in the value of the GBP since the referendum result, we have had no choice but to implement an increase in the price of the cleaner. We will endeavour to hold this price for the next few months but will continue to monitor the exchange rate.
Price is £2295.00 for all colour options,
There are a number of dealers appointed around the UK; please contact us for the one nearest to you. For those not close to a dealer we can supply by mail order. Please phone for details: 0118 981 9891.
Includes 2 Cleaning Fluid concentrates, 1 bath filter and 1 set of 4 Microfibre barrels £2295.00. No water is included.
Delivery with insurance to UK mainland £28.00 by next day courier.
Consumables and accessories:
Cleaning Fluid £12 (dilute to 4.5 litres with distilled/deionised water (change every 100 LPs).
Microfibre Cleaning Barrels (set of 4) £49.00 (change every 500 LPs).
Cleaning bath filter £12.00 (change every 500 LPs).
Wiper blades - set of 2 £14.00 (change approximately every 500-700 LPs).
Drive rings - set of 2 £16.00
Fan filters (set of 2) £54.00 (dependent on environment used change as required but recommended round 800-1000 LPs)
All accessories and consumables purchased delivered within UK mainland is free.
The consumables cost, averaged for 500 LPs, is approximately 25p per LP, not including the cost of water.
What our customers say:
I just wanted to drop you a quick note to let you know how delighted I am with the Audiodesksysteme PRO Vinyl Cleaner. I feel as if I've either had a big cartridge upgrade or - more importantly - a whole new record collection. Not does it only reduce or eliminate surface noise, it also brings out more detail and ups the boogie factor - I'm hearing some much-loved LPs as I never have before. What's more it's compact, easy to use and automatic (and after just two weeks I've cleaned well over 200 LPs). I think it's the best investment I've made in hardware since I bought my LP12 back in 1988 - it really is that good!Mr KW London
The Audio Desk Systeme cleaner turned up, was simple to set up and I have not used CDs since. I play one track of a record, clean it and end up playing it all. Whilst I needed a cleaning machine, I was sceptical of some of the claims in reviews... there is a change in every record cleaned so far. My non-HiFi brother referred to space, room, air and bass clarity from Joan Armatrading's "Show Some Emotion". I noticed clearer fingering of the guitar as well. It's obvious that cleaner records give better music… many thanks.Mr A M, Bristol
The Audio Desk Systeme cleaner is a revelation. This little machine makes the vinyl "better than new" - hard to believe, but absolutely true. It radically improves old and dirty records and the sound improvement – miraculous. This is not a "I think there may be an improvement there" but rather a game changer of an improvement. It works remarkable well on brand new unplayed records - just listening to one side of a new record with no cleaning and the other having been cleaned - way different! Anyone who has a large and cherished record collection deserves one of these. Thanks.Dr M W, Anglesey
Just a note to say that the Cleaning Machine arrived safely this morning and from the few disks I have cleaned with it, I am pleased to say that the results are very impressive. I have a few disks that are around 50 years old that weren't really playable but after cleaning in the machine they are almost like new disks. Amazing!Mr A K, Bromley
An ultrasonic record cleaning service is now available for those that do not wish to invest in this Vinyl Cleaner or wish to try its effectiveness prior to purchase. The minimum number required at one time is 12 LPs at a cost of £48 (£4.00 per LP) plus return delivery. All cleaned LPs placed in a new anti-static inner sleeve whilst preserving the original. For larger numbers call for a price quotation - 0118 981 9891.
Clearaudio are a manufacturer of some of the best turntables. They also make a range of high quality LP cleaning machines. These work well in the more traditional vacuum suction method. Built to a very high standard in Germany and are very reliable. For those who want an affordable alternative to the ultrasonic vinyl cleaner, we can thoroughly recommend the Smart Matrix Professional.
Smart Matrix Professional LP cleaner (pictured) £950
Acrylic dustcover £115
The Double Matrix Professional Sonic record cleaner is probably one of the finest LP cleaners on the market today. Exemplary build quality and based on their highly regarded Double Matrix design but with added sonic cleaning action. The sonic action is applied to each side of the LP simultaneously via carbon fibre filaments that transmit this energy to the film if cleaning fluid that has been applied to the LP surface. Fully automatic, cleans both side of the LP simultaneously, highly efficient. Very quiet in operation and the cleaning cycle is quick compared to many other LP cleaning machines.
Double Matrix Professional Sonic LP cleaner £3450
Acrylic dustcover £165
Pure Groove Groove Essence Fluid
350 ml £22
700 ml £35
1.75 ml £80
Clearaudio are manufacturers of high quality items totally dedicated to vinyl replay. They make some of the best sounding turntables, beautiful designed and simple to set up. Made in Germany to exacting standards they offer high levels of reliability. The Innovation range incorporates a minimalist base based made of very stiff bullet proof wood laminate within aluminium outer surfaces. This principal in extended as the models go from the Innovation Compact through to the state of the art Statement.
Some models offer a non contact magnetic drive mechanisms for ultra low noise. This technology has also been applied to some of their tone arm designs which use a unique fully magnetic bearing mechanism that has no friction. There are also three tangential, linear tracking arms available for the correct tracking of the LP groove in the manner which it was cut resulting in no groove distortion whatsoever.
The more affordable turntable packages include the Concept the Performance DC. These offers a remarkable level of sound quality not normally associated with these price points. The Concept packages is ready to go straight from the box; the Performace DC needs some simple assembly of the tonearm and cartridge. This can be done by us, free of charge, if preferred but the assembled turntable would need to be collected from our studio.These packages offer superb sound and exceptional value compared to any other brand at these price points. Fine details are very easily resolved, dynamics are fast and precise, and rhythm is paced correctly.
Concept MM package £995
Concept MC package £1575
Concept MM Wood package £1595
Concept MC Wood package £1995
Concept Essence MC package £2260
Performance DC including Clarify tonearm and Virtuoso V2 cartridge(pictured) £2950
Performance DC MC includes Clarify tonearm and Concept MC cartridge £3050
Performance DC/TT5 arm/Essence MC package £4295
Innovation Compact Basic – silver/wood + clear platter £3995
Innovation Compact Basic – black + black platter £4100
Innovation Compact – silver/wood + clear platter(pictured) £5175
Innovation Compact – black + black platter £5350
Innovation – silver/wood + clear platter £7600
Innovation – black + black platter £8100
Clarify (pictured) £1130
Unify – Sapphire unipivot/ carbon fibre – silver/black 9" £1560
– silver/black 10" £1595
– silver/black 12" £1740
Universal 9" £3825
Universal 12" £3995
Tangential TT5 £1950
Tangential TT3 £2870
Tangential TT2 (pictured) £7400
Nottingham Analogue is British company manufacturing a wide range of turntables, all built to last. The company offers lifetime guarantees on all its components. Their combination of carefully chosen, different materials, results in a unique method of damping excess energy. A natural tonal balance and good timing is the result. Their tonearms are constructed as a carbon/aluminium composite and all have undamped uni-pivot bearings. For those that prefer gimbal bearings, an adaptor to fit SME tonearms is available to order.We have found the Spacedeck and the Hyperspace to be the most popular although others from their range can be obtained to order.
The NEW improved Hyperspace Deck looks amazing with a high quality of finish to both the turntable and high gloss black plinth that puts to shame many more famous, and more expensive, brands. The very high mass platter, finished off as standard with the Heavy Duty sintered carbon top plate, reduces noise floor to about the lowest level we have heard. Our demonstration model is fitted with the 12" Ace Space Arm which offers exceptional sound, and exceptional value for money, compared to other 12" tone arms on the market.
We have recently added the Space 294 turntable to our portfolio. This is based on the Space Deck but dedicated to 12" tonearms only and features an oversized platter for additional mass. Our demonstration model includes the (optional) upgrade platter kit, made from the carbon ceramic material that uniquely damps most of the undesirable resonances in the system getting to the LP and, as with the Hyperspace, results a very low noise floor. At a total combined cost of £3510, this offers an exceptional sound for this price point, rivalling many brands that costs 2-3 times more.
SpaceDeck with 10" Ace Space Arm £2170.00 (pictured)
Ace SpaceDeck with 10" Ace Space arm £2400.00
Space 294 (for 12" arms only) with Ace Space 12" arm £2880.00
Hyperspace with 10" Ace Space Arm £3850.00
Hyperspace with 12" Ace Space Arm £4000.00 (pictured)
Heavy Duty Upgrade Platter kits for Space/Ace Space Deck £570.00
Heavy Duty Upgrade Platter kit for Space 294 Deck £630.00
SME tonearm adaptors/arm boards to order
SPECIAL PRICES for mail order, self-install, please phone for details.
Other products could be available. Please ring for details.
SME announced a large price increase effective from the 6 February 2017. All turntables increased between 15%
and 25 % and all tone arms between 23% and 32%. Whilst we are not particularly pleased with this high price increase, these
turntables produce some of the very best sounds obtainable from vinyl. The new prices do move this brand into a different price
bracket but we continue to offer several models for audition.
We hope to continue with our special mail order purchase scheme for self install, no audition. There will be a further announcement once we have considered the new list prices and the new terms/conditions; this will be shown on our sale page in due course.
SME have been manufacturing exemplary tonearms for many years. More recently, they have manufactured four turntables acknowledged to be among the best in the world at their respective price points. Very sophisticated designs, not necessarily apparent on first appearance, which channel all the unwanted resonance energy away from the cartridge. This results in a very low noise floor producing a very quiet background to the music, enabling low level detail to be more easily perceived. Incredibly neutral in tone, very accurate in imaging within a large soundstage, and very fast rhythmically. These turntables just do not get in the way of the music.
The new version of the Model 20/3 (pictured) is a big improvement on the already superb Model 20/2. With substantially thickened metal parts, the resultant stiffness has increased many times. The improvement in transparency and focus of the images in the soundstage is very significant and this turntable leans even closer to the sound of the Model 30. There is now an oversized platter (as on the Model 30) with a the top damping material in black; the turntable looks magnificent. Whilst the cost has increased due to these mechanical upgrades that have been engineered into it, it still represents superb value for the sound achieved. The neutrality is hard to beat; the turntable has even less character than before and you now hear more of what is on the LP.
NEW turntable from SME has been launched called the Model 15. It sits midway between the Model 10 and the Model 20/3. The main characteristics are:
A sub chassis suspended with fluid damping as is the case with the Models 20/3 and 30/2.
High density construction resulting in freedom from colouration so common in other turntable designs.
A low noise floor recovering the finest details that result in a deep soundstage with elegant, natural tonality and correct timbre.
Compact footprint, simplicity of operation with understated styling.
The Model 15 is a superb addition to this well respected range of turntables. Probably leaning more towards the qualities achieved with the Model 20/3 than the Model 10 it physically resembles, not surprisingly since much is borrowed from this design. The noise floor is low, the images are very stable both in terms of width and depth, tonally very correct as one expects from SME. Less hi-fi and much more music. This is proving to be the most popular model in the SME range due to it sound quality and compact footprint. Exceptioanl value and well worth the asking price.
Model 10 (pictured) £4338
Model 15 (pictured) £6178
Model 15A with matching Series 309 tone arm £8052
Model 20/3 (pictured) £8544
Model 20/3A with matching Series V tone arm £12832
Model 20/12 £15020
Model 20/12A with matching Model 312S £18060
Model 30/2 £22756
Model 30/2A with matching Series V tone arm £27043
Model 30/12 £29582
Model 30/12A with matching Series V-12 tone arm £35394
Series M2-10 £1399
Series M2-9 £1369
Series 309 £1873
Series IV silver £2730
Series V black £3994
Series V-12 black £5812
Other products could be available.
This respected Swiss company has been making cartridges for many years and also supplies parts to other cartridge companies. Their
sound is very natural, slightly warm tonal balance with a very large soundstage. Cartridge loading requirements are 500
ohms or higher upto around 10Kohms.
ACE SL output 0.3mV (pictured) £695
Glider SL output 0.35mV £829
Wood SL output 0.35mV £995
Ruby Gullwing output 0.35mV £1995
Gullwing SLR output 0.34mV (pictured) £1995
LP with ebony body output 0.35mV £2195
LP S with ebony body output 0.34mV (pictured) £2495
SPECIAL PRICES for mail order, self-install – please phone for details.
The new MC cartridges from Clearaudio offer some of the most natural sounds with one of the largest soundstages from any manufacturer. Based on unique 24 kt gold coils and differing body materials, the performance and dynamic range increase up the model range to the state of the art Goldfinger Statement.
They also make a range of fine sounding MM cartridges. During demonstrations using these cartridges, customers have to be reminded they are listening to a MM design, not a MC. They are that dynamic, fast and elegant. There are too many to list here so please phone for furhter advice and prices.
Concept V2 £650
Essence MC £960
Talisman V2 Ebony body (pictured) £1295
Concerto V2 Satin wood body, 70dB dynamic range(pictured) £1995
Stradivari V2 Ebony body, 80dB dynamic range £2795
Da Vinci V2 Aluminium body, 90dB dynamic range £4100
Titanium V2 Titanium body, 95dB dynamic range (pictured) £5995
Godfinger Solid gold body, 12 magnets, 100 dB£10500
SPECIAL PRICES for mail order.
DS Audio is a Japanese R&D company experienced in laser and infra-red LED optical technology. They have developed a radically new approach to cartridge based on an optical system that does away with moving coils and moving magnets. It uses an optical system that converts the stylus/cantilever movement into audio signals. This completely eliminates electromagnetic frictional forces that are endemic in traditional MM and MC designed cartridges.
The signal is generated by measuring the interruption of a beam of infra red LED. The vibrations from the stylus reading the groove are transferred to a wand that creates shadow movements on the light detector. These are then converted as electrical signals to the equaliser. Because this method of creating an output signal is more linear in its output than a conventional MM or MC cartridge, the equalisation is much simpler due to less processing which creates a more natural sound from the analogue LP than with electromagnetic devices.
The fact there are no magnets or coils associated with the cantilever, the whole cartridge can respond much faster and produces a better frequency response.
The DS-W1 cartridge looks like a conventional cartridge. It has a robust alloy body and a rigid boron cantilever tipped with a Shibata stylus. It is installed in a tone arm exactly as you would any cartridge to establish geometry, arm height and playing weight. Because the output is generated optically, via infra-red LED, it requires power and this is fed from the supplied custom phono equaliser via the green and blue pins. The supplied phono equaliser has to be used as this optical cartridge cannot be used with conventional phono stages.
The equaliser supplied is in a substantial aluminium case fitted with spiked feet that sit in cups made of the same alloy. A high quality item in itself. This phono equaliser also has the option of a subsonic filter to cope with excessive bass noise that can exist on some LPs or if the LP is substantially warped.
The most important difference is the sound. From first listening I was struck by how natural this cartridge was. The background noise level is so low that transparency was exceptional. The air and space in the soundstage amongst the best – if not the best - I have heard. Dynamics sweeps such as a full orchestra going from soft to loud, tympani and brass, sounded so lifelike. Strings were sweet and rich in tone, just like in a concert hall, without any hint of “screech”. By sweet I do not mean overly warm through colouration. Piano notes have decays and detail that is revealed easily and that is not so obvious with any conventional cartridge but perhaps with the crazy expensive models. No hint of hifi artifice.
For those serious about obtaining the most tonally correct, most natural sound from their LPs, whatever the genre preferred, this cartridge should be listened to. It is a radically different approach to vinyl replay and it comes with its own phono equaliser and power supply.
I have never heard such wonderful sound. Just speechless! Yes, I was shocked at the incredible dynamic sweeps, the blackness of the back ground and the speed of the transients.Ken Kessler, HiFi News September 2015
DS-W1 Optical Cartridge including custom phono equaliser £6250
A well established Japanese manufacturer (assembled and tested by Yoshinori Mishima) and sound engineered by Jonathan Carr. Excellent
transparency and all are capable of large soundstages. A neutral tonal balance with good bass response but with a slightly
more forward presentation of the soundstage than the other brands we offer. Cartridge loading optimally around 1000 Ohms but
comfortable into higher or lower values.
The Skala combined the tonal neutrality, musical flow and smoothness of the ZYK with the Helikon’s tonal neutrality and transient precision.Michael Fremer, Stereophile March 2007
Dorian output 0.55mV £795
Delos output 0.45mV £995
Kleos output 0.5mV £1995
Skala output 0.5mV (pictured) £2895
Titan i output 0.5mV £3395
SPECIAL PRICES for mail order, self-install – please phone for details.
Mono version of certain models available ; please call for prices.
Other products could be available. Please ring for details.
This Japanese company makes cartridges which are among the most musical we know. They are very transparent allowing fine detail to be resolved with ease. A large soundstage, particularly front to back, and accurate focus of images. Tonally very accurate, timbrally correct with no exaggerated sense of scale so that instruments are reproduced at their 'correct" size.
All models are constructed with a non resonant aluminium body, yokeless design, 5N silver coils and a boron cantilever fitted with an Ogura PA diamond. The Phoenix S and the Proteus have double ring neodymium magnets front and rear whilst the Axia S has double ring samarium cobalt/neodymium magnets. The Proteus uses a heavier gauge 5N silver wire in the coils and includes a 35 mu metal core.
We are pleased to offer the new model Proteus for audition. This is a truly superb cartridge and worthy of the claims made for it. It is one of the finest cartridges made and should be seriously considered by those contemplating the top of the range cartridges from other competitive brands.
Axia S output 0.36mV 5N silver coils (pictured) £1995
Phoenix S output 0.40mV 5N silver coils (pictured) £2795
Proteus output 0.30mV 5N heavy gauge silver coils (pictured) £3995
SPECIAL PRICES for mail order, self-install – please phone for details.
Some recent commentary:
Smooth and well balanced. Excellent surface noise control.5 Globes award HiFi World November 2014
Nicely balanced, pleasing to the ear with effortless detail and musicality. It was a joyful sound. Outstanding Product Award HiFi News November 2014
Clearaudio make a range of high quality, fuss free, beautifully constructed phono stages. Some of their models offer auto impedance matching hence no adjustments to make when changing cartridge models. An optional battery power supply can added to the ‘+’ models for an even further reduced noise level. Their sound is neutral with no emphasis on any frequency range creating the largest soundstage that the cartridge is capable of.
The Absolute Phono Inside design is something extremely special. Dual mono and fully balanced in construction it is one of the best, if not the best, phono stage we have heard, at any price. Extremely silent, low noise results in superb dynamics and the ability to resolve the finest details on the recording. The result are a large, deep soundstage with each instrument/vocalist occupying their own space. A revelation. It is not by any means a low cost item but the best rarely is.
Nano Phono £295
Nano Phono V2 Headphone £340
Smart Phono V2 £525
Smart Phono V2 Headphone £565
Basic + (pictured) £690
Balance +(pictured) £1995
Absolute Phono (pictured) silver or black £9495
Absolute Phono Inside silver or black £9495
Accu + Battery Power supply for + phono stages £595
The Clearaudio Absolute Phono Inside is arguably a landmark MC phono stage design, albeit a costly one. Ostensibly simple on the outside, the two-box solution is intelligently conceived and expertly executed. The result is a truly captivating sound quality that is difficult to criticise on any level.Adam Smith, Hifi News 2015
Based on the highly regarded design in their PLP pre-amplifier, this valve phono stage is extremely transparent, produces very large sound-stages, precise imaging and is tonally extremely correct. Smooth, liquid sound with no hint of grain and none of the usual bloom that can colour other valve based designs. Most importantly for a valve based design, it is very quiet. The VPS will also enable discerning audiophiles the opportunity to have a little of the famous Nagra sound within other quality vinyl replay systems.
Powered by a separate, 12 volt DC supply, it has very low background noise levels which allow the finest details to be resolved.
External switching allows two different gain settings. Load impedance (for MC cartridges) and capacitance alterations (for MM cartridges) are easily done by plug-in miniature boards to suit cartridge loading and tone-arm cable requirements.
Build quality is to the usual, very high Nagra standard and is in a similar size chassis to their pre-amplifiers and CD players. There are factory options to allow for two separate inputs for those who have two tone-arms with two different cartridges.
Nagra VPS phono pre-amplifier with single MC/MM input (pictured) £4650
Additional MC phono input for VPS £1100
Additional MM phono input for VPS £455
Vibration Free Support (VFS) 1290
Nagra BPS (pictured) £1495
Other products could be available. Please ring for details.
We are evaluating the phono stages designed by this well known US company. First impressions are extremely favourable offer a superb, different sound at very affordable prices. We will report with more detail in due course.
Phonomena II+ solid state - silver or black £700
Nova II battery phono stage - silver or black £1200
Fosgometer ARM Azimuth Adjustment Meter £350
This device may look like many others but the effect on the sound of the turntable is very different. This record weight will fit over the spindle of almost all turntables and is to be used in place of those supplied with clamps. It places the Harmonic Resolution System (HRS) proprietary polymer compound in intimate contact with the LP over the label area. This polymer compound absorbs the vibrational energy generated by the stylus reading the LP groove or the structure borne energy that is transmitted through the chassis and from the platter bearing. Removing these resonances, the sound from the LP is far more natural, less distorted especially at the higher frequencies, and much more transparent. Soundstages become deeper because the finest details that resolve the space of the recording venue are more apparent and image focus is more precise. Our customers say that once they play their vinyl systems with this record weight, they cannot listen to their LPs without using it.
Please note this is not a threaded clamp so it will not flatten a warped record. However, even when used with warped LPs the sonic benefit is still very apparent.
We have trial samples available for home evaluation. Please phone for details.
ADL Analogue Disc weight (pictured) £230
ADH Stainless Steel Disc weight (pictured) £459
NEW PRODUCT The new stainless steel version of ADH weight is now available in adition to the ADL. This is made from non-magnetic stainless steel and has 3 times the mass of the ADL. It is optimised for higher mass, non-suspended turntables. Only be available in the natural machined stainless steel finish.
The initial response from a few customers who have bought ADH weights report an extremely large upgrade in levels of transparency compared to the already superb performance generated from using the ADL.
There is a whole level more clarity, lower noise floor and tonally more neutral. More than justifies the additional cost difference