Category: TUBE PRE-AMP
Showing 1–16 of 41 results
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GA-2 Ref from McIntosh C22 GA-2 is Ref from McIntosh C22 (for customer made only) Hi End Tube pre amplifier Kit for Audiophiles BEST SOUND WITH BEST COMPONENTS Direct connect with Unicore 4N silver cables WIMA Black box/GAD Silver Oil cap/ RA resistors Circuit design ref. classic McIntosh C-22 lineamp Model No: GA-2-C22, assembled and …
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GA-31A MM assembled & tested MM RIAA Phono Amp, Voltage amp stage using 4 pieces of 6922/6DJ8, input stage is using LM394. The sound of GA 31 Phono kit is relaxed atmosphere, rich layers; it can be very good with your MM phono. board size: 230mmx155mm (tubes, case and power transformer not included)
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LS-12 bareboard use two 12AT7 for voltage amplify, very simply circuit, double side gold plated PCB board size: L 220mm X W 155mm matching supply LS-DY, LS-65, LS-70, LS-9D
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LS-19 assembled & tested Modiflied from MFA, using 3 pieces of 6922, constant current source in input stage. PP coupling capacitor, metal film and carbon film resistor, board size: L 20mm X W 155mm matching supply LS-DY, LS-65, LS-70, LS-9D (tubes, case and power transformer not included) Available Options: LSDY : (+US$60) Power Transform: Matching …
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LS-19 bare board circuit came from MFA. using three 6922, addiing constant current source at the input stage. board size: L 220mm X W 155mm
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LS-22 assembled & tested Circuit modify from Macintosh C-22 line amp section. PP coupling capacitor,metal film and carbon film resistor, board size: L 220mm X W 155mm matching supply LS-DY, LS-65, LS-70, LS-9D (tubes, case and power transformer not included)
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LS-24 assembled & tested Each channel using one 5687 in parallel, giving much more current, output can match headphone impedance from 8 ohm to 600 ohm. SCR PP coupling capacitor,metal film and carbon film resistor board size: L 220mm X 155mm. (tubes, case and power transformer are included)
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LS-24 bare board Each channel using one 5687 in parallel, giving much more current, output can match headphone impedance from 8 ohm to 600 ohm,. board size: L 220mm X 155mm. mathcing supply TP-1 MOSfet voltage regulator board for high voltage supply board size: L 220mm X W 62mm
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LS-25 assembled & tested Circuit modified from Matisse, using 4 pcs of 12AT7, with regulator on board . PP coupling capacitor,metal film and carbon film resistor board size: L 310mm X W 190mm (tubes, case and power transformer not included)
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LS-25 bare board Circuit modified from Matisse, using 4 pcs of 12AT7, with regulator on board . PP coupling capacitor,metal film and carbon film resistor board size: L 310mm X W 190mm
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LS-26 assembled & tested circuit modify from convergent SL-1,have two voltage amplify stage, 12AU7 used in first stage,second stage is 12AX7 SRPP, output stage use a 6DJ8 as a cathode follower,voltage swing about 50V.With more dynamic ,mid and high end is lush, liquid and detail. PP coupling capacitor,metal film and carbon film resistor matching supply …
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LS-26 bare board circuit modify from SL-1, two stages of voltage amplify, 12AU7 used in first stage,second stage is 12AX7 SRPP, output stage use a 6DJ8 as cathode follower. circuit modify from convergent SL-1,have two voltage amplify stage, 12AU7 used in first stage,second stage is 12AX7 SRPP, output stage use a 6DJ8 as a cathode …
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LS-27 Assembled and tested FANTASY pre amp, using 4 pieces of 12AT7, on board high voltage regulator and output delay circuit board size: L 353mm X W 212mm
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LS-27 bare board FANTASY pre amp, using 4 pieces of 12AT7, on board high voltage regulator and output delay circuit board size: L 353mm X W 212mm
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LS-29 assembled and tested LS29 is base on the HI END Audio manufacturers-Music Fidelity’s X CAN series . LS29 is very simple, it is easy to install and cheap, sound and good, you only need to add a 24VAC transformer and then connected the RCA input and output terminals, then it can sing. It can …
