Chandler Limited RS124 Compressor User Manual ® I NPUT CO N TR OL 4 5 6 3 ® 6 0 0 50A 6 1 0 10B 7 2 7 2 15 8 9 I 8 S LOW 6 H OL D I0 20 30 10 dB COMPRESSION 5 -6 0 -5 FAST I -7 -3 -2 -9 5 2 4 3 FUSE -4 -8 9 I 0 OUTP U T A TTE NUATO R ( dB ) AT TACK 4 6 0 0 70B -I -I0 OF F ON C O M P R E S S OR TY P E R S 1 2 4 E . M. I. L T D 0 RE COV E R Y OFFICIAL EQUIPMENT For more information, visit www.chandlerlimited.com. © 2016 Chandler Limited, Inc.
HISTORY Chandler Limited ® RS124 Compressor User Manual Thank you for purchasing the Chandler Limited RS124 Compressor, you now own a piece of EMI / Abbey Road Studios official equipment. The Chandler Limited RS124 Compressor is a recreation of the rare EMI / Abbey Road Studios RS124, and reimagined for the modern era. The Chandler Limited RS124 is a mono tube compressor, and incorporates an extended feature set over the original equipment.
CONNECTIVITY OUTPUT LINK OUTPUT IMPEDANCE 200 000001 FUSE MAINS VOLTAGE 110-120V FUSE .25 AMP SLO BLO INPUT TIP- CV SLEEVE- 0v 600 Chandler Limited RS124 C O M P R E S S OR TY P E R S 1 2 4 E . M. I. L T D 220-240V POWER The Chandler Limited RS124 Compressor features an internal power supply. Connection is made using the supplied IEC power cable. Power is preset internally to operate at either 120V or 220V.
I NPUT BAL. AT TACK CO N TR OL 3 ® 2 4 6 1 0 10B In any “push/pull” amplifier, one side pushes waveform, 6 0 0 70B 7 while5 the other side pulls it in an equal fashion. Over time, 6 the “push/pull” balance may and as a 0 2 become irregular, 8 2 result, unwanted artifacts will occur in the audio. This is 7 I 9 common to most tube based compressors, including the 30 RS124.
AT TACK INPUT CONTROL 6 0 0 50A I NPUT CO N TR OL 4 5 4 6 3 dB 0 COMPRESSION 3 The RS124 is a variable transconductance compression cir- 7 2 I 8 9 I 0 I0 6 1 0 10B The “INPUT CONTROL” is variable*, and allows adjustment of input signals applied7 at the XLR input connector on the10rear 15 5 of the compressor. The “INPUT CONTROL” is labeled 0 to10 2 8 20 from left to right. 9 cuit.
ATTACK AT TACK 4 6 1 0 10B 6 0 0 70B 6 I0 6 0 0 50A 7 2 7 8 9 I 8 S LOW 6 H OL D FAST I 9 5 2 4 3 Chandler Limited’s RS124 Compressor provides adjustable attack time via the stepped switch, labeled OU “ATTACK”, a feature not available on historic units. A T T E N U There are nine attack time settings available, the fastest setting is achieved at10the far 15 5 left position labeled -6 “1”, each subsequent position is slower.
METER The Chandler I N P U TLimited RS124 features compres60 sion level facilities via the 4large ‘db C O Nmonitoring TR OL COMPRESSION’ meter located 0 B center of the 6 0 0 7at front panel.5 6 4 2 The meter illustrates the 7 3 ‘db COMPRESSION’ I amount of compression applied to the incoming to left 0 to -30db.
MAINTENANCE TUBES From time to time, replacing vacuum tubes may be necessary. The RS124 compressor requires three vacuum tubes: 6BC8, 6CG7, and 6AL5. WARNING: HIGH VOLTAGES are present! Before replacing any tubes, please power off the unit, disconnect the power cable and wait 5 minutes for the voltage to discharge. FUSE On the rear of the unit exists a circuit protection fuse. If fuse replacement is required, cycle the power switch to ‘OFF’, and use a 250mA Slow-blow type.
U.S. SERVICE Prior to sending in your gear for repair, please contact our shop at the number below. We will assist you in troubleshooting the problem and, if needed, we will issue you an RMA# to send in the gear. Send repairs to: Chandler Limited, Inc. Attention: Repairs 222 S. Cherry St. PO Box 38 (if sending via the postal service) Shell Rock IA 50670 Phone: (319) 885-4200 Email: support@chandlerlimited.
Product Limited Warranty During the first year from the date of the original purchase, this product is warranted to be free from defects in materials and workmanship under normal use, service and maintenance. This warranty applies to the original purchaser and is subject to the following terms and conditions: What Is Covered: The product’s components as originally installed by the manufacturer that are defective in materials or workmanship under normal use, service and maintenance.
DISCLAIMER OF WARRANTY EXCEPT FOR THE FOREGOING WARRANTIES, CHANDLER LIMITED HEREBY DISCLAIMS AND EXCLUDES ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO ANY AND/OR ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND/OR ANY WARRANTY WITH REGARD TO ANY CLAIM OF INFRINGEMENT THAT MAY BE PROVIDED IN SECTION 2-312(3) OF THE UNIFORM COMMERCIAL CODE AND/OR IN ANY OTHER COMPARABLE STATE STATUTE.