SJS Electroacoustics new Model 7 line stage preamplifier has been designed as the 20th Anniversary re-imagination of the original Arcadia Model 1 line stage pre-amplifier, which was first delivered to customers in early 1997.

The Arcadia Model 7 line stage is based upon the same 6111wa NOS military valve and has been specifically engineered for sonic performance rather than technical specification, and fulfils all SJS Electroacoustics primary design criteria:

Single Ended circuit topology
Pure Class A operation
Zero negative feedback
Valve rectification and choke-input HT power supply
Custom made HT T-network power supply capacitors with silver leads
Point-to-point circuit wiring without PCBs
Hand built
PTFE board for component mounting
High quality components throughout
Custom made aluminium chassis

Design Options

The Model 7 line pre-amplifier is hand built to order in England, and therefore we are bale to offer customisation to meet your sonic preferences. Bespoke customisation of the internal components is possible to meet our clients' specific requirements, whether it is replacement of the Audyn capacitors with Dueland RS or CAST or possibly even using Tantalum film resistors, for example, these can be discussed at the point of ordering.

Technical Specifications

Input Impedance: 100 kOhm
Gain: 12 dB
Frequency Response: +/-3dB 3Hz-100KHz
Valve Compliment: 2 x 6111WA, 1 x EZ80
Max. Power Consumption: 100 Watts
Unit Weight: 10 kg 
Shipping Weight: 15 kg
(Original Packaging)
Unit Dimensions
100mm (h) x 450mm (w) x 400mm (d)
Shipping Dimensions
180mm (h) x 545mm (w) x 500mm (d)