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PhonoLogue phono stage (optional)

Your ProLogue Three preamplifier comes without a phonostage, but we have a high quality optional 
internal phono stage available. The PhonoLogue phono stage can be installed at any time by your 
dealer or any qualified person.

The PhonoLogue MM phono stage with RIAA equalization, requires no extra plugs or connectors. It fits 
(by soldering) on the existing RCA's of one of the inputs. It provides superior sound quality on a tiny 
footprint. We use Surface Mount Technology implementation for shortest signal paths as well as 
minimum parasitic capacitances and inductances. Excellent parts throughout, selected on sound 
quality as first priority: miniature film capacitors, minimelf resistors, superior opamp for highest 
accuracy, lowest noise, highest speed and most robust drive capabilities into the RIAA correction 
stage, resulting in a very detailed, open and lifelike sound from any LP record. Low impedance 
electrolytics, super low-noise powersupply. Dimensions: small as a big stamp!

Specifications:

Input Impedance: 

50 kOhm

Gain: 42dB 

(127x)

Frequency Response:  

10Hz - 50kHz

RIAA accuracy:  

<0,5B 20Hz - 20kHz

Overload Margin:  

>20dB rel 5mV

Harmonic Distortion & noise:  

-83dB

Size:  

3,2 x 3,8 cm (1.26" x 1.5")

PrimaLuna

® 

ProLogue Three

Summary of Contents for ProLogue Three

Page 1: ...PrimaLuna ProLogue Three Preamplifier Serialnumber PrimaLuna ProLogue Three...

Page 2: ...use Protection 9 Troubleshooting 10 Warranty Information 11 Copyright Durob Audio BV 2005 All rights reserved Reproduction in whole or part of text logo graphics or schematics is strictly forbidden wi...

Page 3: ...pply ceramic tube sockets ALPS volume control Nichicon Solen and Swellong capacitors gold plated panel mounted input and output jacks SoftStart circuit for extended life of sensitive components plus a...

Page 4: ...ed to ProLogue Four or Five Output Impedance 2800 Ohm Power Consumption 46W Net Weight 23 5 lbs 10 6 kg Shipping Weight 27 9 lbs 12 7 kg Dimensions 15 5 x 11 x 7 5 395 mm x 280 mm x 190 mm L x W x H S...

Page 5: ...the ProLogue Three from its packaging Use the white gloves to prevent fingerprint smudges Remove the tube cage by carefully pulling it up and away from the preamplifier Remove the protective foam surr...

Page 6: ...ource selection is on the right Your sources are labelled CD Tuner Aux 1 and Aux 2 but all are interchangeable There is no functional difference between the inputs The power switch is located on the l...

Page 7: ...r shortest signal paths as well as minimum parasitic capacitances and inductances Excellent parts throughout selected on sound quality as first priority miniature film capacitors minimelf resistors su...

Page 8: ...frequent tube replacement Through experimentation come to a conclusion that fits comfortably with your lifestyle Break in yields improvements Every tube when new needs to be left alone for a little w...

Page 9: ...power amp first and after that the preamplifier Unplug all speakers components and AC cords before continuing Wait 10 minutes to let tubes cool down and the circuit to fully discharge Mains Fuse The m...

Page 10: ...hannel Check rectifier tube 5AR4 swap L to R if hum follows tube then replace faulty tube Noise distortion coming from both channels Tubes may be in need of replacement Read page 8 for tube basics and...

Page 11: ...tten description of the defect and a return authorization number available from Durob Audio BV or the authorized representative via e mail Upon receipt of the defective product Durob Audio BV or the a...

Page 12: ...e read the history section of the Primaluna village web site and found the following literally translated One probable interpretation of the name of the village comes from latin Primum Lumen which mea...

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