SYREN OPERATOR'S MANUAL Version 0 20140224 LTD. 2117 East 5th Street Superior, WI 54880 USA tel: 715-398-3627 fax: 715-398-3279 www.cranesong.com © 2014 Crane Song, LTD. Subject to change without notice. 1 Printed in the U.S.A.
SYREN is a classic sounding tube preamp in a 500 series package, using a dual triode circuit with a 12AX7 tube SYREN features a dual gain stage circuit and allows overdrive effects. A switch selectable HI-z input is included. The low cut filter is at 90 Hz and is 24 db/ octave. The pad has -15 db and -25 db settings to allow a wide input range of signals. The audio path color is changed by modifying the second stage tube circuit so it has negative feedback or does not have negative feedback.
SIGNAL FLOW OUTPUT OD LED INPUT OD LED 3 POSITION PAD INPUT INPUT GAIN OUTPUT OUTPUT GAIN COLOR SWITCH LOW CUT FILTER
PHASE REVERSE PAD 3 POSITIONS OFF, -15 DB, -25 DB PHANTOM POWER OFF - ON FIRST TUBE STAGE INPUT GAIN OVER DRIVE LED STARTS TO TURN ON AT -6DB FROM SOFT CLIP SECOND TUBE STAGE OUTPUT GAIN SELECT HI-z OR MIC INPUT LOW CUT 90Hz 24 DB / OCTAVE HI-z INPUT COLOR SELECTION IN THE OPEN SETTING NEGATIVE FEEDBACK IS OFF, THIS IS GOOD FOR OVERDRIVE EFFECTS AND NATURAL TUBE COLOR IN THE COLOR SETTING NEGATIVE FEEDBACK IS ON ON THE SECOBND TUBE STAGE THIS HAS A BRIGHTER SOUND
SPECIFICATIONS Pad: Max Gain: Filter: Power: 0, -15, -25 db steps 65db 90Hz 24 db/oct 100mA with self resetting fuses At 40db of gain, 0dbu output and a 150 ohm source Harmonic Distortion : 0.
