Research RP8 Turntable
The Rega RP8 skeletal turntable.
Evolution is a well proven and documented
process in many areas of our lives. This applies in particular to design
engineers and machines. Over the past forty years our cars have become
more reliable and economical whilst we take for granted the reliability
and speed of modern aircraft. Rega is no exception to evolution. Regas
experience and previous achievements allow us to continually develop
and produce better products.
The RP8 is the first of our new skeletal design turntables offering groundbreaking levels of performance and amazing value for money.
The RP8 will also be available with its perfect partner, the Apheta moving coil cartridge, factory fitted as a package option
Today there are many approaches to Hi-Fi design which follow established and informed engineering or electronic principles. Amplifier and loudspeaker design has been well documented over the years with excellent technical publications. These subjects have been based on tried and tested acoustic criteria and many computer software programs now exist that enable a near amateur to design a passable working loudspeaker based on known acoustic and mathematical parameters.
Enter turntable design: When it comes to turntable design we are limited to a few poorly informed articles describing only very limited aspects of design. This is a subject full of mythology. Designers propose theories that counter the basic laws of physics, use terminology that doesnt actually exist in the engineering world, build products that are more like beautiful sculptures than acoustic reproduction machines and sell items costing tens of thousands of pounds that hardly function as intended and often fail to work at all.
For instance a very common myth is the heavier the better concept. Turntable bases weighing tens of kilograms are not uncommon. The reality is that the base actually needs to be as light as possible to prevent unwanted bearing and motor noise being transferred to the turntable or record. Platters also fall under a similar myth with many platter designs becoming so heavy that it is impossible to design a correctly functioning bearing (and some so light that anyone can hear the speed inconsistency). The turntable platter itself needs to be of enough weight to spin at a constant speed within the confines of the chosen bearing and motor drive system.
Many amateur designers in any field choose one component in a design and try to achieve an extreme in size, weight and quality. They believe that by taking one theory to its extreme the design will become perfect. The reality of all engineering, design (and life) is that perfection is not possible. Based on this reality, Regas goal has always been to optimise a mixture of numerous correct compromises thus bringing the designer nearer to the unachievable goal of perfection.
TTPSU power supply
The compact TT-PSU uses a high stability
crystal locked low distortion sine wave generator. This, along with
an efficient drive amplifier fed from a stabilised DC power supply,
generates a 24V AC balanced signal of less than 0.05% distortion, which
is completely un-affected by any changes in the mains/line voltage and
conditions. This then drives the improved Rega anti-vibration circuit
built into the RP6 motor PCB
The RB808 tonearm is packed with new
features pushing the boundaries of tonearm design. As with all Rega
tonearms each one is meticulously hand built by a team of highly skilled
technicians. The RB808 has improved bearings and a tightened spindle
fit tolerance over previous models (each bearing is individually selected
to find the perfect match for the chosen spindle). This is a proven
method of increasing the amount of detail retrieved from the record
Magnesium and Phenolic - Dual bracing
A super lightweight plinth combined with a double brace mounted specifically where the increased rigidity is required (between the tonearm mounting and the main hub bearing) forms a structurally sound stressed beam assembly. This design prevents energy absorption and unwanted resonances which will add un-natural distortions to the music. The RP8 takes our double brace technology to the next level. Not content with an unprecedented stiffness to mass ratio, Rega have obsessively reduced any resonant properties by using two different materials for the new stressed beam. The top layer is magnesium and the bottom layer is pheno-lic (two of the lightest and stiffest materials available). Incorporating two different materials into the brace structure lowers their ability to pick up unwanted airborne vibrations. Simply put, different materials have different natural resonances. By using two different materials together they decrease the natural frequency of each other by self damping.
Super flywheel effect triple layer
24V Low noise motor
The motor is a high specification, 24V
twin phase synchronous unit which has the anti vibration circuit hand
tuned to each motor and is controlled by Rega's unique and innovative
TTPSU power supply. The motor drives the CNC machined pulley and sub
platter/hub-bearing assembly via the belt drive.
24V Low noise motor
The motor is a high specification, 24V twin phase synchronous unit which has the anti vibration circuit hand tuned to each motor and is controlled by Rega's unique and innovative TTPSU power supply. The motor drives the CNC machined pulley and sub platter/hub-bearing assembly via the belt drive.