Acebassmusic Posted July 4, 2016 Share Posted July 4, 2016 (edited) [color=#282828][font=helvetica, arial, sans-serif]Here's my Alembic F-1X preamp for sale or trade. These superb bass pre-amps usually go for about $1600 new (£1000). [/font][/color][color=#282828][font=helvetica, arial, sans-serif]This unit is in full working order and excellent condition.[/font][/color] [b]Some Alembic F-1X info from their website:[/b] [color=#282828][font=helvetica, arial, sans-serif]The F-1X gives you a unity-gain impedance matching amplifier to feed guitar-level effects units. The effects return goes thru the tube gain stage and then to the tone controls. The signal from the tone controls is amplified and sent to the full-range output jack on the rear panel. This same signal is also fed to the crossover network. A transformer-isolated output feeds a 3-pin Cannon jack.[/font][/color] [b]Circuit detail[/b] [color=#282828][font=helvetica, arial, sans-serif]Two input jacks provide the same functionality as found on the F-2B preamplifier. The input is buffered by a cathode follower tube circuit, which is a unity-gain impedance matching amplifier to feed the guitar level effects loop. This gives minimum loading on the output signal from the guitar while driving the effects loop gear with the same signal voltage level as the guitar but at a lower impedance, to isolate cable and other loading effects from the guitar pickups.[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]A solid state circuit restores the signal level after the volume control and provides impedance matching to drive the full range output jack on the rear panel. Additionally, it drives the crossover network. [/font][/color] [color=#282828][font=helvetica, arial, sans-serif]A transformer-isolated balanced output to an XLR type connector provides auxiliary Recording or PA feed. A switch selects the source to be the effects return (Pre) or the full range output (Post). [/font][/color] [color=#282828][font=helvetica, arial, sans-serif]The AC Line (Mains) connection is an IEC (computer-type) detachable cord. The supply voltage can be changed by moving jumpers inside the unit to operate from 100, 120, 220, and 240 volts for operation anywhere in the world.[/font][/color] Edited August 19, 2016 by Acebassmusic Link to comment Share on other sites More sharing options...
BassBod Posted July 9, 2016 Share Posted July 9, 2016 Counting my pennies.... Link to comment Share on other sites More sharing options...
Acebassmusic Posted August 7, 2016 Author Share Posted August 7, 2016 [color=#282828][font=helvetica, arial, sans-serif]Offers and trades bump [/font][/color] [color=#282828][font=helvetica, arial, sans-serif] Main t[/font][/color][color=#282828][font=helvetica, arial, sans-serif]rades I'm interested in are Vanderkley, Fodera and[/font][/color][color=#282828][font=helvetica, arial, sans-serif] [/font][/color][color=#282828][font=helvetica, arial, sans-serif]Sei etc. but lets see what else ya' got [/font][/color][color=#282828][font=helvetica, arial, sans-serif] [/font][/color] Link to comment Share on other sites More sharing options...
aeo_77 Posted August 7, 2016 Share Posted August 7, 2016 Trade for a ATS lba 5 mark iii head? With positive difference? Link to comment Share on other sites More sharing options...
Acebassmusic Posted August 7, 2016 Author Share Posted August 7, 2016 Thanks for the offer but not what I'm after. Also forum rules say that all offers are to be by PM only, Here's the link [url="http://basschat.co.uk/topic/183234-rule-changes-to-marketplace-36-hour-bumping-rule-trade-valuations-and-trade-offers/"]http://basschat.co.uk/topic/183234-rule-changes-to-marketplace-36-hour-bumping-rule-trade-valuations-and-trade-offers/[/url] Link to comment Share on other sites More sharing options...
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