Audion 2 and 4 Box Line & MC Phono Stage

Audion Premier Quattro 2 and 4 box Line/mc monoblock hard wired pre-amplifiers

5 Star Awarded
5/5

Audion Premier Quattro  2 and 4 Box Line level pre-amp with MC phono stage.

Audion Premier Quattro line level with moving coil phono stage 2 box mono-block pre-amplifier or 4 box (with seperate power supply)  is totally hard wired point to point and hand built using solid core 4 9’s silver wire in all its audio path and specially selected and matched components including some tanatalum resistors in critical paths, etc etc  to make it one of the best sounding preamps in the world!.. Dont take ourt word for it! See Arthur Salvatore’s comments rating it the best production pre-amp in the world ever made . 

The Quattro is available in our unique all aluminium Uni-chassis’, and includes a moving coil phono stage designed for use with the most sensitive of cartridges, it is a true high-end, high quality product capable of handling a massive array of sources. There are 4 line level inputs and an MC input. The Audion Quattro is the finest stock preamplifier ever made. It has the benefits of both simplicity of design and superb execution (with only 4 tubes in the entire signal path from the cartridge, a 2 chassis totally dual-mono construction and the power supplies use only polypropylene capacitors). There are 17 active power supply stages in each mono-block pre-amplifier. Or alternatively our 4 chassis version with separate power supplies and 21 active power supply stages per mono – block. 

The sound stage is extremely fluid and controlled. Roll off in both directions is seamless. Resolution is astounding, with absolutely convincing depth even at very low playing levels. It brings recordings to life and places you directly in front of the performance. The active phono stage is of a step-up transformer less design, meaning it is incredibly fast and fluid, without matching worries.

The chassis’ are black powder coated aluminum as is the transformer cover. The top plate and badge are mirror finished stainless steel. Arguably the finest stock pre-amplifier in the world.

Audion Premier Quattro 2 box lit front

Audion Premier Quattro 2 Box MC/Line pre-amplifier.

Audion Premier Quattro 2 and 4 box hard wired mono- block pre-amplifiers.

As with all our active pre-amps the Quattros feature a transformer less design, which is directly cathode coupled with no input, inter stage or output wound components making this pre-amp extremely fast and capable of handling the most intricate and detailed passages of music that can be shown them. Outstanding performance, lightning quick response curves and terrific transparency. Being an active design there is no issue with connecting almost any moving coil cartridge to this pre-amp as, unlike step up transformers (our own included) there are matching issues. 

A step up transformer, being a passive wound component needs close impedance matching to ensure compatibility. The Quattro, being one of teh only active stages on teh market requires no matching (In fact it has been likened to “Plug and Play” simplicity).  

The Quattro 4 box line / phono pre-amp uses 4 x NOS Russian 6H23N as standard, it also has a ground lift switch at the rear to assist in resolving grounding issues by floating the ground internally above mains ground. We recommend our Electron cables with this set up.

 

Technical specifications for all products in this range.

Warranty: 2 years return to base. Valves 6 months.

Specifications Quattro 2 Box

Active power supply – on board regulation 17 active supplies with choke
Sensitivity Variable – >1.1V Line, 0.4mV MC Phono
Impedance – 47K Line / 100R MC
Phase – Correct
Distortion @ 1V – <0.015% No Feedback
Noise CCIR) – <80db Phono
Frequency Response: – 20 – 205KHz ±1 db RIAA
Signal to Noise: – >70 db
Weight: 9Kgs per mono-block

Specifications Quattro 4 Box

Active power supply – on board regulation 21 active supplies with choke
Sensitivity Variable – >1.1V Line, 0.4mV MC Phono
Impedance – 47K Line / 100R MC
Phase – Correct
Distortion @ 1V – <0.015% No Feedback
Noise CCIR) – <80db Phono
Frequency Response: – 20 – 205KHz ±1 db RIAA
Signal to Noise: – >70 db
Weight: – 6kgs each pre  7kgs PSU each Mono-block

Specifications Both Amplifiers

Inputs – 4 Line Level (of which) 1 x tape, 1 x MC Phono
Outputs – 2 main & 1 Unattenuated tape out.
Consumption: 25 Watts per mono-block
Tubes: 4 x 6h23n
Size:  42cm deep,23cm wide and 16cm tall – Including valves. 
Fuses – Power 500mA 240V / 1A 120V Slow blow

We would recommend only two upgrades to this pre-amp, and upon Arthur Salvatore’s recommendation we would advise customers purchasing either the 2 or 4 Box Premier Quattro to include Teflon V-caps and our 48 way stepped attenuators.

“Once modified, this preamp has the extremely rare quality of both speed and precision along with a total sense of immediacy and completeness.” – Arthur Salvatore

Upgrade options and upgraded product categories direct from the factory.

We offer 2 basic upgrades to this pre-amp, and upon Arthur Salvatore’s recommendation we would advise customers purchasing either the 2 or 4 Box Premier Quattro to include Teflon V-caps and our 48 way stepped attenuators.

We can also offer as upgrade  WBT Nextgen RCA’s

Product reviews from around the World. 

Reference Components – Arthur Salvatore

Audion Premier Quattro 2 and 4 box hard wired mono- block pre-amplifiers.

As with all our active pre-amps the Quattros feature a transformer less design, which is directly cathode coupled with no input, inter stage or output wound components making this pre-amp extremely fast and capable of handling the most intricate and detailed passages of music that can be shown them. Outstanding performance, lightning quick response curves and terrific transparency. Being an active design there is no issue with connecting almost any moving coil cartridge to this pre-amp as, unlike step up transformers (our own included) there are matching issues. 

A step up transformer, being a passive wound component needs close impedance matching to ensure compatibility. The Quattro, being one of teh only active stages on teh market requires no matching (In fact it has been likened to “Plug and Play” simplicity).  

The Quattro 4 box line / phono pre-amp uses 4 x NOS Russian 6H23N as standard, it also has a ground lift switch at the rear to assist in resolving grounding issues by floating the ground internally above mains ground. We recommend our Electron cables with this set up.

 

Technical specifications for all products in this range.

Warranty: 2 years return to base. Valves 6 months.

Specifications Quattro 2 Box

Active power supply – on board regulation 17 active supplies with choke
Sensitivity Variable – >1.1V Line, 0.4mV MC Phono
Impedance – 47K Line / 100R MC
Phase – Correct
Distortion @ 1V – <0.015% No Feedback
Noise CCIR) – <80db Phono
Frequency Response: – 20 – 205KHz ±1 db RIAA
Signal to Noise: – >70 db
Weight: 9Kgs per mono-block

Specifications Quattro 4 Box

Active power supply – on board regulation 21 active supplies with choke
Sensitivity Variable – >1.1V Line, 0.4mV MC Phono
Impedance – 47K Line / 100R MC
Phase – Correct
Distortion @ 1V – <0.015% No Feedback
Noise CCIR) – <80db Phono
Frequency Response: – 20 – 205KHz ±1 db RIAA
Signal to Noise: – >70 db
Weight: – 6kgs each pre  7kgs PSU each Mono-block

Specifications Both Amplifiers

Inputs – 4 Line Level (of which) 1 x tape, 1 x MC Phono
Outputs – 2 main & 1 Unattenuated tape out.
Consumption: 25 Watts per mono-block
Tubes: 4 x 6h23n
Size:  42cm deep,23cm wide and 16cm tall – Including valves. 
Fuses – Power 500mA 240V / 1A 120V Slow blow

We would recommend only two upgrades to this pre-amp, and upon Arthur Salvatore’s recommendation we would advise customers purchasing either the 2 or 4 Box Premier Quattro to include Teflon V-caps and our 48 way stepped attenuators.

“Once modified, this preamp has the extremely rare quality of both speed and precision along with a total sense of immediacy and completeness.” – Arthur Salvatore

Upgrade options and upgraded product categories direct from the factory.

We offer 2 basic upgrades to this pre-amp, and upon Arthur Salvatore’s recommendation we would advise customers purchasing either the 2 or 4 Box Premier Quattro to include Teflon V-caps and our 48 way stepped attenuators.

We can also offer as upgrade  WBT Nextgen RCA’s

Product reviews from around the World. 

Reference Components – Arthur Salvatore

Arthur Salvatore
Arthur Salvatore
Reference Components
Read More
The Audio Quattro is the finest stock preamplifier ever made. Its phono stage cis designed to accommodate low output moving coil cartridges, and its line stage is a unity gain cathode follower. It has the benefits of both simplicity of design and superb execution (with only 4 tubes in the entire signal path, a 4 chassis totally dual-mono construction and the power supplies use only polypropylene capacitors). This preamp has the extremely rare quality of both speed and precision along with a total sense of immediacy and completeness. Highly recommended.
John Marchant
John MarchantHifi Review.com
Read More
The sound was a contrast, detailed and extremely musical. There was no slowness and desire to lull the listener, for which I dislike for a directly heated triode single end.
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