Rega P7 Review

by James Leahy

                                         

                                                                     Introduction

This is my personal favourite in the Rega turntable line up and my reference turntable that I use in my own system everyday. Let me outline the reasons why I chose this unit amongst all others to finish off my analogue front end.

Rega accepts that the manufacturing of any product involves compromises to varying degrees. However they have always maintained they they try to choose the one which will give the customer the best value. This is why Rega products are notoriously devoid of gadgets and useless frills, why packaging is designed for efficiency rather than attractiveness and why, as a rule, simple works best. The P7 is available in two colours of silver or black aluminium frame surrounding the plinth. The supplied dust cover (not pictured) is clear acrylic on all models except for the black P3 which is smoked. Go figure.

 

But onto more important matters of the ear, with the Rega P7 you get unbeatable performance per dollar invested. Lets start from the top down and reveal what makes the P7 a winner.

The first time I auditioned a Rega P7, I remember thinking like many others before me that the rig did not outwardly appear to be very 'snazzy' looking compared to it's competition within this price range. I would urge all to not let Rega's minimalist construction philosophy fool you into thinking, 'plain looks' equal 'low performance'.  It has been in my experience that in actual fact during real world testing quite the opposite is true. They are British, so over at Rega they think differently for a start alright....

Other table manufactures preferring to rely on a different school of thought when it comes to turntable construction. Rega aims to make their rigs similar to a Ferrari in terms of offering maximum rigidity with low mass. Opposite to this mind set and popular with other brands is tank like construction with the highest mass possible in an effort to battle the laws of physics. Rega have not adopted this approach and as such are industry innovators not followers. Rega achieves it's high performance with great precision and provides rumble free operation due to the synchronous motors made by Premotec. It is said that one can hold a Rega drive motor in one's hand and it can be switched on/off without any possible vibration being felt. Hence one can not tell if the motor is running or is off, such is the quality of the Rega motor's used. This contributes massively to the low noise of this table critical in users that wish to run MC cartridges. After all lets not forget that information that is lost at this critical point can never be recovered latter. It is critical to understand this principle as many spend considerably more on their amplification and loudspeakers never to realize how much information is lost at the source. 

 

The first thing one notices is that it offers the new highly regarded RB700 tonearm as standard and this makes a very compelling reason to own this masterpiece of modern day engineering in itself. The RB700 is painted in beautiful silver and has a contrasting black anti-skate adjustment. The new three point mounting system that secures the RB700 to the plinth is a giant step forward in terms of rigidly and provides true sonic benefits over the RB600. This feature is directly taken from the RB1000 and as such you get an truly excellent product at a reduced price through trickle down technology. The RB700's bearings are hand assembled to provide extremely low tolerances and immeasurable friction! The counterweight provided is also a cut above the standard, constructed out of tungsten with a double o-ring clamping system to rigidly secure it to the arm. Rega tonearms have always provided no in-built adjustment for VTA.

 

The tonearm's height must be adjusted by the use of shims sold separately being placed between the tonearm's base and the plinth. This is a small price to pay for this minor trouble. However, Rega has reportedly claimed that any in-built adjustment would substantially subtract from their tonearms rigidity and aim of sonic perfection. I must say that I would tend to agree that that idea. The less adjustments the better and with such a simple alternative, it is a non issue in my book. When I mounted my favourite reference MC cartridge, namely Ortofon's legendary Jubilee, I used one 2mm shim and it all took about 15 minutes to carefully remove the tonearm and output cord from the plinth and insert the shim then refit and check the VTA.

Like all high-end tonearms the Rega RB700 is of one piece construction made from aluminium tube. In the high-end market tonearms with removable head shells are generally frown upon by audiophiles due to their inherent lack of rigidity and strength at one of the most critical points in the tonearms structure due to a detachable system. You may notice me go one about rigidity of construction in this review, that is because this principle is one of the key factors that Rega regards of primary importance when it comes to their tables construction philosophy.

 

The fun doesn't stop with the tonearm vinylphiles. You are also given a laser cut 'state of the art' ceramic platter that in my view looks even more dramatic than what is supplied on the range topping P9 at almost twice the price! This unique ceramic platter with it's 18 individual discs incorporated into the underside of the platter aids with rotation inertia and provides remarkably low resonance and high rigidity to an already excellent rig. Not to mention looking way cool at the same time. However, knowing Rega it was primarily selected for it's sonic attributes not looks. The P7's platter is said to account for one third of the total cost of the whole unit, such is the quality of construction and attention to detail put into every P7 platter.

 

 

The P7 also comes with Rega's exclusive outboard (separate) regulated power supply (called the TT PSU) that is digitally locked in the best efforts to providing exacting levels of motor speed accuracy. This is also available is silver or black. The all new TT PSU and motor anti-vibration circuit is a combination of the innovative P9 power supply along with an improved P25 anti-vibration motor drive feeding the P9 24V AC synchronous motor. The TT PSU uses a remote "wall wart" transformer therefore keeping the sources of hum & noise well away from sensitive parts such as the cartridge and phono leads

 

The compact TT PSU uses exactly the same high stability crystal locked low distortion sine wave generator as is used in the heart of the P9 power supply. This, along with an efficient drive amplifier fed from stabilised DC power supply, generates a 24Volt AC balanced signal of less than 0.05% distortion, which is completely unaffected by any changes in the mains/line voltage and conditions. This then drives the turntables anti-vibration circuit, which is situated beneath the turntable.

The drive voltage for the motor is run along the power lead to the turntable motor, which also carries the 33/45-RPM DC relay control voltage used to activate the anti-vibration circuit. The P7 table actually contains no electrical circuits that may interfere with the tables low noise floor. The speed is controlled directly from the TT PSU and can be easily selected for the correct record you are playing.

 

The gear drive mechanism also features full steel billet CNC construction technology (not plastic like the P3 & P5) and is directly lifted off the P9 with it's dual drive belts that provide for maximum transfer of energy. This feature sold me on this unit. The platter bearing is also of the highest standard that comes from the P9. This helps directly to provide the extraordinary level of performance at a much reduced price. Rega does not offer a suspension system as such but prefers to rely on their tables supreme rigidity to control vibrations and I was surprised at how amazingly well this approach works even with a 3000 watt subwoofer in my listening room. Not a hint of feedback even at reference levels with the rig sitting on no more then the top of an equipment stand! The P7 is balanced with 3 very solid feet with rubber inserts that really work to decouple the table from any resonance being felt through the mounting surface.

 

 

Sonic Evaluations

Before sitting down for my first listen I remember thinking in great anticipation what the benefits might be over my old table. Well the wait was now over. When I settled down to Jimmy Cliff's -'Brother' from Music Maker (Warner Bros,1974) the coherence and impact of the soundstage was frighteningly solid and powerful. Gone was the lack of authority I was used to with slightly detached vocals. I was very impressed with the way the music has a newly found rhythm in the lower mid bass section and the P7's great depth of image. This turntable is for bass freaks and those who are not shy of the volume knob.

 

Never have I heard a table produce bass in such abundance and with gobs of layers that cut through the soundstage like the way a knife glides through warm butter. The overall sonic presentation gives a rock solid image with great slam and impact. That is the way in which I like to listen to my music, because I like to feel it as much as hear it. If you are of the same 'school of thought' I am sure you will appreciate everything the P7 has to offer.

What more can I say about this model other than, I wish I had bought one years ago. Your cartridge will never sound as good as it could without a turntable worthy of reference status. You can never get time back again no matter how hard you try but you can always make more money. I offer you the benefit of learning from my mistakes people.

 

 

Associated review Equipment

  • Amplifier:           Audio Research VT200 Mk.I

  • Line Stage:         Audio Research LS26

  • Phono Stage:      Audio Research PH5

  • Speakers:           ScanSpeak & Vifa Custom

  • Cartridge:           Ortofon MC Jubilee

  • Cables:              Neotech

  • Subwoofer:         Velodyne HGS-15