GRIPPEAZ-UK / ILISSUS AUDIO

Stereo Vacuum Tube Amplifiers

Tube Power Amplifier

         The photograph shows a 'one tuber' - a single


ended, stereo, power amplifier utilizing just one


'spud' per channel.  Designed & produced 


exclusively within the United Kingdom by 


accomplished engineers, this model, crafted to 


order, is of the type in which just three components 


lie in series with the audio signal path to attain near 


optimum musical reproduction.  The output transformers * (also designed in-house) are of  premium 


grade, well proportioned & elegantly interleaved to secure adequate magnetic coupling.  The amplifier


can deliver an average 5W ** into a pair of 8 ohm loudspeakers & has an input sensitivity of 3Vrms. 


The design is such that the second harmonic component is promoted whilst higher orders are 


attenuated; the overall characteristic sound reproduced has been likened to that which was ubiquitous


during the era of vintage wireless.

                                     


    -     Tubes:  EL84 Output Pentodes.


    -     Zin:  > 150,000 ohms.


    -     Feedback:  0dB  (decreasing distortion complexity).


    -     Tube Biasing Method:  Self.


    -     Output Transformer Lp:  24H @ 30Hz. 


    -     D. C. Fuse:  250mA, anti-surge.


    -     Power Consumption:  55 Watts. 


    -     Power Bandwidth (DIN 45-500):  2.5Wav + 2.5Wav over 30Hz to 16KHz into 8 ohm loads with                                                                      3Vrms input signals. 

 

    -     Recommended Loudspeaker Sensitivity:  93dB - 98dB.  Never operate the unit without                                                                                                                      loudspeakers connected.

 

    -     Unit dimensions:  W 14 3/4" (375mm),  D 4" (102mm),  H 4 3/4" (121mm). 



          The amplifier comes complete with fitted, protective base-plate & cover.  The electronic


component parts of the assembly are connected by method of point-to-point & the overall stylish, 'in-line'


construction facilitates bookshelf (or other practical) placement.  The amplifier is sold complete with a


modish, smoky grey, toughened glass plinth consonant with contemporary furnishings.   If desired, the 


unit can be driven directly by the audio output of a laptop computer.

 

 

          HIGH VOLTAGE WARNING!   Under no circumstances should the assembly be 


dismantled or any component part removed.  In the event of a problem, disconnect from the


power source & 'Contact' us or a qualified technician.

 

 

          The 5-pin DIN audio socket is preferred over RCA for earthing considerations.



          The 2-pin DIN loudspeaker sockets are favoured over other options for their practical 


convenience, & although somewhat restrictive in terms of accommodating sizeable cable gauges, it 


should be noted that in our experience it is the quality of copper conductor that determines the end 


result, not its mass.  A 10m length of 1mm diameter, good grade copper conductor is adequate to 


deliver audio fidelity.


  

          We offer the option of anodized black chassis (view 'Photo Gallery') & 4 ohm output impedance.


We also produce a 'Tetrode Tube Amp' version.  The transformer cover & base plate are black.


 

          A one year warranty is given covering any production defects.  As a consumer you are entitled to


a full refund should the amplifier fail independently within thirty days of receipt; moreover if not 


completely satisfied you may return your amplifier within fourteen days of receipt for a full refund in 


accordance with the 'Distance Selling Regulations'.  The assembly must arrive back to us in pristine 


condition & please note, we do not refund the return carriage.


 

          We sell this product almost exclusively to U. K. residents - we do not export other than to a 


limited number of selected destinations.


 

          To purchase one of our vacuum tube amplifiers, please select 'Buy Now - Tube Amp.'.  The price


of a single unit is £870, which includes packing & delivery charges within the United Kingdom.  


Alternatively we will accept a £200 non-refundable deposit, the balance of £670 to be paid on 


completion of the order.  We forward photographs of the finished article for approval prior to full 


settlement.  When making your purchase it is important to specify which model has been selected, ie. 


EL84 or 6V6.  Please allow up to 30 days for completion of your order.  During the weeks leading to 


Christmas we prepare & store a small quantity of amplifiers for immediate dispatch.


 

           Do 'Contact' us with any questions you may have. 


    *     Select 'Output Transformers' for further details.


    **    Select 'Audio Power Output' for more information.




                                                                                                Grippeaz-UK / Ilissus Audio