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Perreaux Prisma SM6 MkII Balanced Stereo Preamplifier


or 6 weekly interest free payments of NZD $965.83 with

Made in New Zealand

The Prisma Series SM6 MkII is a fully balanced stereo preamplifier. Utilising discrete Class-A signal and line stages in a fully balanced topology



SKU: Prisma-SM6MKII Categories: , Tags: , , , Brand:


The Perreaux Prisma Series SM6 MkII Balanced Stereo Preamplifier is a fully balanced hi fi audio stereo preamplifier.

Utilising discrete Class-A signal and line stages in a fully balanced topology, the SM6 MkII presents music with the realism of the performance itself. With six separate regulated power supplies the sensitive analog stages are isolated from all power supply artifacts, allowing dynamic transient attacks to appear from a black background. The wide frequency response of the SM6 MkII enables the entire audio spectrum to be portrayed in an articulate manner, ensuring you’re not left guessing. As with all Perreaux products, the design is completely solid state, featuring the finest audiophile grade components throughout.

General Features

True balanced input and output for improved noise rejection and cancellation

The SM6 MkII is a fully balanced stereo preamplifier, from input to output. The positive and negative halves of the signal never touch. This is very rare and only the highest quality hi fi audio preamplifiers have this architecture.

Four discrete line stages running in Class-A

The Class-A line stages have been designed to provide output buffering, so the user can drive low impedance loads over long cable lengths using any cable, without affecting the quality of the audio signal.

Six separate regulated power supplies

There is a separate power supply for each section of the preamplifier; one for each of the volume control ICs (one IC is used for each of the left and right channels to keep the system fully balanced and, therefore to maintain separation each IC is supplied with it’s own separate power supply), another one for each of the output buffering stages (once again because the SM6 MkII runs a fully balanced system, this means that there are two separate output buffer stages), yet another to power the digital logic and the final power supply looks after the input and output relays. The advantage of is that there is complete isolation from stage to stage, and most importantly digital noise is completely kept from infecting the analog audio section.

Wireless remote control of all functions

Many audiophile hi fi audio components are still provided with analog controls that are adjusted on the faceplate of the unit. While total control from the remote is common practice in standard products, it is not yet widely utilised on many high-end audio systems. Obvious advantage is that you don’t have to get out of your chair to make an adjustment.

Home Theatre Bypass

The SM6 MkII features a direct input (processor loop), which bypasses the preamplifier for use in a home theatre system.


We pay particular attention to designing the product to ensure maximum separation between internal signal and power earths, only meeting at a central starred point.

Premium grade components used throughout

Wima signal capacitors, custom wound multi tap epoxy potted toroidal control transformer directly soldered to the PCB, highest quality fiberglass PCB allowing special treatment to be given to earth planes and layout with minimum dielectric, hand soldered through-hole mounted components.

Precision digitally controlled analog resistor ladder volume control

The SM6 MkII uses two digitally controlled resistor ladder volume controls. This is because we treat the positive and negative parts of the signal separately (true balanced system). The advantages of using a digitally controlled analog resistor ladder to adjust volume are – precise control, no contacts to corrode creating wiper noise and no analog component drift.

Input switching via high quality relays

Any manufacturer who uses a comprehensive remote control will use relays. However, Perreaux employs the use of high quality relays with gold plated silver contacts, thereby further lessening the chance of degrading the audio signal.

Dual preamp level outputs

You do not need to purchase an RCA style splitter if you want to drive two separate audio power amplifiers simultaneously (for example in a bi-amp situation) or if you wish to include a subwoofer in your system, as there are dual preamp outputs.

High quality PCBs

Quality PCBs featuring heavy copper tracks and components are used throughout the unit.

Remote Trigger Outputs

Dual 5V remote trigger outputs are provided to allow connected components to be powered ON or OFF as the SM6 MkII is taken in and out of standby.

User Controls

Infrared (IR) Remote Control
Alphanumeric Display
Simple User Interface
Remote Trigger Outputs
Balanced/Unbalanced Selector

I/O Compliment

6 pairs Unbalanced Inputs (RCA)
1 pair Balanced Inputs (XLR)
2 pairs Unbalanced Preamp Outputs (RCA)
1 pair Balanced Preamp Outputs (XLR)
2 pairs Unbalanced Line Outputs (RCA)

Additional information

Weight 5 kg
Dimensions 25 × 35 × 25 cm

Rated Output



Total Harmonic Distortion (THD+N)

0.001% @ 1kHz

  20Hz to 20kHz:
<0.004% Frequency Response     20Hz to 20kHz: ±0.15dB Signal to Noise Ratio: 95dB, referenced to rated output Dynamic Range: 110dB Input Impedance     Unbalanced: 10kΩ   Balanced: 20kΩ Input Sensitivity     Unbalanced: 215mV   Balanced: 215mV Phase Accuracy: ±0.5º, 20Hz-20kHz Dimensions:  Width  Height  Depth 430mm (16.9")106mm (4.2")323mm (12.7") Weight: 7.7kg (17.0lb)

Why buy from us?

Rapallo is an independently owned New Zealand company and with more than 15 years experience, we offer you both technical expertise and superior service.

Rapallo is fully authorized to sell products by all of the manufacturers listed on our website and in our store. In most cases we are more than a reseller, we are a direct dealer who also receives training and where possible we personally test products we sell.

Authorized dealers like us offer peace of mind. Rapallo

  • meets manufacturer’s standards, from sales to service, in order to receive authorized status.
  • often receives training directly from manufacturer representatives and shares that expertise with you.
  • provides  support for all the products they sell.
  • ensures that manufacturer warranties will be honoured.
  • buys directly from big brand manufacturers and guarantee you buy NZ new, (no grey imports or parallel imports).

The Internet is an incredibly convenient information source and a wonderful way to find savings on the products you want. Protect yourself online by buying from authorized dealers, with genuine feedback and reputations.

A price too good to be true, usually is.
If you’ve ever searched for a product on a shopping engine (such as Priceme/Pricespy) you may have asked yourself, “Why are some stores charging so much less than other stores?”

Our customers often share these stories with us, so we thought we would share a few with you, in hopes that you don’t fall prey to any of these unscrupulous sales tactics.

  • Goods may be grey market/parallel imported. They may state that the product includes the manufacturer warranty, but not tell you that the warranty is valid only in Europe, Japan, or South America, and NOT in NZ.
  • You may be asked to buy an expensive extended warranty. In many cases if you do not purchase the warranty, your purchase will be denied. (The product is now out of stock, your card does not go through, etc.)
  • Included parts may be sold to you separately. Some resellers will open boxes and charge extra for parts that are normally included by the manufacturer.
  • Hidden charges which don’t show up until your credit card statement arrives, these charges only show up when your credit card statement is sent to you.
  • When something goes wrong, faulty, late delivery, doesn’t matter how many times you try to email, they don’t get back.
  • There are so many scamming online sellers today, “buyer beware” protect yourself!

Think you have a better price from someone in NZ (authorised dealer)? Call us, we’ll see what we can do.

12 months interest free over $1,000 or 18 months interest free over $2,000 finance available (on non-discounted items). Apply here.

Call us 09 2744515

Concerned About Fraud?

The internet has become a more popular source for online shopping, regrettably we have seen more and more instances of fraud affecting online shoppers. Companies trading under many  different names, loading warranties and charging for them as extras when often they are included from the manufacturer. Parallel imports or personal imports where the NZ supplier refuses to repair when things go wrong is often alarming to the unsuspecting purchaser. Inflated freight charges, customs and GST at the border are often forgotten as a buyer is tempted by a lower price. Constantly we hear all these stories, once bitten it’s all to late looking for that refund or replacement. The stories are outrageous at times, customers from Trademe and ebay with no place to turn, time consuming and very frustrating….

So how do you protect yourself from online fraud?

  • Buy from an authorized reseller. If you are at all suspicious, contact the manufacturer directly and ask if a company is authorized to sell their products.
  • Make sure you get a company invoice with GST clearly marked.
  • Make sure you buy from someone who has a phone number and an address on their website, not a P.O.Box number
  • Read customer feedback, you can usually tell if it’s genuine or not.

We hope that you will become our next happy customer. And we promise to offer you superior service before, during and after your purchase.

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11A Allens Road
East Tamaki
Auckland 2013
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Saturday 10AM-2PM
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Call us on 09 2744515 or email us on sales@rapalloav.co.nz

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