1140-LU-A Hammond

1 / 1 0 / 2 2 , 1 : 5 6 P M S t u d i o G r a d e I m p e d a n c e M a t c h i n g T r a n s f o r m e r s ( 1 1 4 0 S e r i e s ) - H a m m o n d M f g . Quality Products. Service Excellence. Studio Grade Impedance Matching Transformers 1140 Series Features Designed with Nickel alloy cores for high performance and Wide Bandwidth Frequency Response: 20 Hz 20 kHz 0.35 dB, (ref. 1 kHz) Low distortion at levels up to +27 dBu 20 Hz. Excellent Shielding Mu Metal enclosures Line Output Transformers are open style (not Mu Metal) Microphone Input Transformers Part No. Impedance Ratio Turns Ratio Max Input 20Hz THD 20Hz Frequency Response 20Hz / 20kHz 1140-MN-A 150:15K 1:10 -2.5 dBu 0.02% -0.05 dB/ -0.06 dB 1140-MN-B 150: 3.8K 1:5 +7.0dBu 0.015% -0.04 dB/ +0.00 dB Microphone Splitter Transformers Part No. Impedance Ratio Turns Ratio Max Input 20Hz THD 20Hz Frequency Response 20Hz / 20kHz 1140-MS-A 150:150 1:1 +2.0 dBu 0.05% -0.14 dB/-0.06 dB 1140-MS-B 150:150:150 1:1 +2.0 dBu 0.030% -0.08 dB/+0.06 dB 1140-MS-C 150:150:150:150 1:1:1:1 +11 dBu 0.030% -0.05 dB/+0.20 dB Line Input Transformers Part No. Impedance Ratio Turns Ratio Max Input 20Hz THD 20Hz Frequency Response 20Hz / 20kHz 1140-LN-A 10k:20k 1:4 +16 dBu 0.02% -0.04 dB/+0.10 dB 1140-LN-B 10K:10K 1:1 +20 dBu 0.020% -0.03 dB/+0.10 dB 1140-LN-C 36K:2.2K / 10K:600 4:1 +26 dBu 0.015% -0.20 dB/+0.05 dB 1140-LN-D 40K:2.4K 4:1 +21 dBu 0.060% -0.12 dB/+0.06 dB 1140-LN-E 600:600 1:1 +19 dBu 0.020% -0.06 dB/+0.00 dB h t t p s : / / w w w . h a m m f g . c o m / e l e c t r o n i c s / t r a n s f o r m e r s / a u d i o / 1 1 4 0 1 / 21 / 1 0 / 2 2 , 1 : 5 6 P M S t u d i o G r a d e I m p e d a n c e M a t c h i n g T r a n s f o r m e r s ( 1 1 4 0 S e r i e s ) - H a m m o n d M f g . Line Output Transformers Part No. Impedance Ratio Turns Ratio Max Input 20Hz THD 20Hz Frequency Response 20Hz / 20kHz 1140-LU-A 10K:600 4:1 +23 dBu 0.00% -0.06 dB/+0.04 dB 1140-LU-B 600:600 1:1 +21 dBu 0.150% -0.20 dB/+0.03 dB 1140-LU-C 600:600 1:1 +18 dBu 0.001% -0.05 dB/+0.02 dB 1140-LU-D 600:600 1:1 +24 dBu 0.080% -0.18 dB/+0.03 dB 1140-LU-E 600:600 1:1 +22 dBu 0.001% -0.03 dB/+0.02 dB 1140-LU-F 600:150 2:1 +27 dBu 0.001% -0.01 dB/+0.01 dB 1140-LU-G 600:600 1:1 +27 dBu 0.001% -0.02 dB/+0.02 dB open style (not Mu Metal) Direct Box Transformers Part No. Impedance Ratio Turns Ratio Max Input 20Hz THD 20Hz Frequency Response 20Hz / 20kHz 1140-DB-A 200K:1.5K 12:1 +22 dBu 0.02% -0.07 dB/-0.07 dB Data subject to change without notice 2022. Hammond Manufacturing Ltd. All rights reserved. h t t p s : / / w w w . h a m m f g . c o m / e l e c t r o n i c s / t r a n s f o r m e r s / a u d i o / 1 1 4 0 2 / 2