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Martin Audio – MA4.2s (ETL) Amplifier

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9.4

Short circuit protection

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9.5

Automatic Fuse Saver, AFS

 

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AC mains voltage protection

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All material © 2007. Martin Audio Ltd. Subject to change without notice.

Summary of Contents for MA4.2s

Page 1: ...MATCHING MLS SWITCH 8 5 4 1 THE MLS TECHNOLOGY 9 5 4 2 THE PROBLEM 9 5 4 3 THE SOLUTION 9 6 INSTALLATION 10 6 1 MOUNTING 10 6 2 COOLING 10 6 3 OPERATING VOLTAGE 10 6 4 DENMARK 10 6 5 SWITZERLAND 10 6...

Page 2: ...re 3 3 CAUTION To reduce the risk of fire or electric shock do not remove screws There are no user serviceable parts inside this amplifier Refer servicing to qualified personnel only 3 4 Important Saf...

Page 3: ...L Amplifier ENGLISH 3 0 1 2 3 4 5 6 7 4 3 5 User responsibility RXGVSHDNHU GDPDJH 8 2 4 9 RXGVSHDNHU RXWSXW KD DUG 6 0 5DGLR LQWHUIHUHQFH 4 9 9 2 92 92 1 All material 2007 Martin Audio Ltd Subject to...

Page 4: ...2 4 24 4 2 4 4 2 Front Panel 40dB PR OTE CT CLIP ON PR OTE CT CLIP 40dB ON MA4 2s AC AFS 1 0 1 7 3 4 2 7 9 6 5 2 8 10 D UU S UR WHF WLRQ KD QG OH A Q SX W OHY H O DWWH Q XD WR UV 0 4 3URWH FW LQ GLFD...

Page 5: ...0Hz 1 CH B 1 CH B Ser No OUTPUT CH A Clip Limit er A O n O ff STEREO 1 CH A 1 CH A 2 CH B 2 CH B BRIDGE Pin 1 Spk 2 Spk Pat ents S E 900 3426 EP 0 483094 US 52 00711 Clip Limi ter B O n O ff 0 2 4 5...

Page 6: ...H RQ WKH UHDU RI WKH DPSOLILHU LQGLFDWHV WKH VHOHFWHG PDLQV RSHUDWLQJ YROWDJH RQQHFW WKH PDLQV FDEOH RQO WR WKH VRXUFH UHIHUUHG WR RQ WKH ODEHO 5 REAR PANEL FEATURES 5 1 Gain switch 2 Q Q A 4 0 4 6 4...

Page 7: ...G RU LQ SDUDOOHO 1RWHV IRU DPSOLILHU WHVWLQJ J 91 E 0 4 4 D6 H VXUH WR XVH EDODQFHG LQSXWV RQ DOO PHDVXULQJ HTXLSPHQW LQFOXGLQJ RVFLOORVFRSH SUREHV LI RX DUH EHQFK WHVWLQJ 5HYHUVH RSHUDWLRQ RI KDQQHO...

Page 8: ...8 ULGJH PRQR PRGH 24 0 3 L 4 8 4 4 0 Q VQW H V W ULGJH PRQR PRGH IHDWXUHV 0 7 24 230 0 7 X 5 4 Impedance matching MLS switch 230 230 2 3 0 24 24 2 30 4 24 0 6 23 0 2 4 2 30 All material 2007 Martin A...

Page 9: ...ohms Bridged mono 1660 W 2000 W 3200 W 4600 W 4 ohms Bridged mono 3320 W 4000 W 4800 W 5800 W 1 1 Component tolerance dependent 2 Continuous power one channel driven or peak power both channels drive...

Page 10: ...PSOLILHU LQGLFDWHV WKH VHOHFWHG PDLQV RSHUDWLQJ YROWDJH RQQHFW WKH PDLQV FDEOH RQO WR WKH VRXUFH UHIHUUHG WR RQ WKH ODEHO 7KH ZDUUDQW ZLOO QRW FRYHU GDPDJH FDXVHG E FRQQHFWLQJ WR WKH ZURQJ W SH RI PDL...

Page 11: ...6DYHU 4 0 6 DOFXODWLRQ 7KH FXUUHQW GUDZ 7 7KH KHDW SRZHU 1 A X 5 5 X 5 5 X 5 3RZHU 6 DFWLYDWHG 3RZHU 3RZHU GOH QRWH QRWH 0 V RKPV RKPV RKPV ZLOO EH UHGXFHG E 6 OLPLWHU QRWH YHUDJH SRZHU ZLWK PXVLF DV...

Page 12: ...5 9 7 9 9 7 9 9 7 9 4 0 T 7 7 7 7 7 5 5 5 5 X 4 7 X J 7 CONNECTIONS 7 1 Input connections DODQFHG LQSXWV P 3 1 J U J 0 D 93 J D Q J 3 5 LQSXW FRQQHFWRU 5 EDODQFHG J 1 4 P3 D J U 3 0 39 9E 9 0 D 93 U...

Page 13: ...LQN J 8QEDODQFHG LQSXWV 0 4 6 8QEDODQFHG OLQH FRQQHFWLRQ DODQFHG OLQH ZLWK XQEDODQFHG HTXLSPHQW 4 0 7 2 Connecting speakers 0 J J3 0 0 1 0 1 4 Q X 4 Q X Q X 0 4 4 7 0 KDQQHO DQG LQWR WZR VHSDUDWH 6SHD...

Page 14: ...RQ WR VSHDNHU SRODULW ORXGVSHDNHUV FRQQHFWHG RXW RI SRODULW GHJUDGH VRXQG TXDOLW T 1 51 1 7R SUHYHQW HOHFWULF VKRFN GR QRW RSHUDWH WKH DPSOLILHU ZLWK DQ RI WKH ORXGVSHDNHU FDEOH FRQGXFWRUV H SRVHG 8 O...

Page 15: ...P ON PROTE CT CLIP 40dB ON MA4 2s OLS OLPLW LQG LF DWR U 1 3 9 5 9 PROTECTION FEATURES 9 2 4 4 9 1 Output Limiter 4 H 4 S D J L J L 0 0 2 4 L J 9 2 Thermal protection 4 4 9 3 VHF protection D6 ED 39 4...

Page 16: ...4 2 4 24 0 9 5 Automatic Fuse Saver AFS limiter 4 0 4 4 E 4 E 4 0 4 0 4 0 39 4 0 4 0 4 0 6 4 0 39 6 4 0 24 24 7 H 9 6 AC mains voltage protection 4 J 39 Y Y Y Y Y Y 9 7 The AC LED 39 9 24 9 8 DC prot...

Page 17: ...SURWHFWLRQ ZKHQ GULYHQ DW ORZ OHYHO DXOW 7KH DPSOLILHU JRHV LQWR SURWHFWLRQ ZLWK SRZHU LQGLFDWRUV RII 4 E E R E E DXOW 7KH DPSOLILHU GRHV QRW UHVSRQG HYHQ DIWHU FKHFNLQJ DERYH LWHPV 0DUWLQ XGLR FDQQRW...

Page 18: ...ENGLISH 18 11 WARRANTY HQHUDO 24 thre 24 J 4 3 1 24 J 4 3 0 4 24 J 4 3 24 J 4 3 QWHUQDWLRQDO 7HFKQLFDO DVVLVWDQFH DQG VHUYLFHV QWHUQDWLRQDO 2 4 2 4 4 1 Q 1 Q 7 9 1 R All material 2007 Martin Audio Ltd...

Page 19: ...E E 32 5 5 48 5 0 176 9 YHUVLRQ 9 YHUVLRQ H 5 E H E 2 5 E E 4 4 0 16 855 17 5 2KPV V YHUVLRQ 9 YHUVLRQ 4 4 7 4 4 4 74 T 6 R S 4 0 Z 4 Z 4 Z 67257 21 D D6 H TD6 S D R TD6 S 2 R S 80 12 6 11 6 3 5 7 21...

Page 20: ...ifier ENGLISH 20 7 T 6 33 1 0 16 216 D 7 D 5 5 6 33 1 7 T URQW 3DQHO U 8 39 39 0 U 39 4 U 39 4 0 8 39 5HDU 3DQHO J Q J 0 3 0 L J 230 0 0 J 4U 3 230 4 0 3 4 T 0 All material 2007 Martin Audio Ltd Subje...

Page 21: ...e HP12 3SL England Telephone 44 0 1494 535312 Facsimile 44 0 1494 438669 Web www martin audio com E mail info martin audio com The Martin Experience Please Click here to return to main menu Please Cli...

Page 22: ...The Martin Experience ENGLISH MA4 2s ETL Amplifier User s Guide All material 2007 Martin Audio Ltd Subject to change without notice...

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