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Tube preamp 70

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Coil Audio CA-70


The transformers are good and these are in very good condition. I have doc and schematics that will be sent with the Mic Preamps. The SA comes with tubes, checked input and output transformers.

The SA MO requires external power. I have power supplies available. This mic pre is re-capped and has NOS tubes. All transformers have been checked for proper DCR. The units have been bench tested and sound great. The Sa comes with complete doc and schematic. Text for info on racked units and power supplies. View my store below or click on the icon above. I will arrange shipping for you through a shipping service. Sold as is. If you have questions I will try to answer them. Shipping takes place after the funds are credited to my account, NOT upon notification from them.

This may add a few days before I ship. By bidding on this auction you agree to Ebay's user agreement and the terms stated below. I require receipt of shipping info within 3 days of the auction ending, and payment to be received within 3 days after the close of the auction. I ship within 5 working days after receipt of funds.

Please send email with questions before bidding. The Final bid is binding. If You are the High Bidder, you agree to send the funds as stated. No Warranty is expressed or implied, Sold "as-is" and all Sales Final, unless otherwise stated in the description above. Shipping is non refundable. Items authorized for return must be returned in the same packing and in the same condition as send.

Thank You for bidding and good luck Please check our other Ebay auctions Condition: RE capped and ready to rack up. Technical knowledge needed to make operational. Great seller with very good positive feedback and over 50 ratings. See Details on eBay available at. Recent Feedback.


McIntosh C70 70th Anniversary Vaccum Tube Preamplifier

While its design is new, the MC incorporates the lessons learned and the techniques invented in 70 years of audio engineering. The stunning new design of the MC is highlighted by a bead blasted black anodized aluminum chassis accentuated with matte finish carbon fiber side panels. The front panel showcases a backlit laser cut McIntosh logo flanked by classic McIntosh knobs, and the vacuum tubes are covered by a removable gauge stainless steel wire cage with a black powder coated finish. On the business end, there are the two Unity Coupled Output Transformers with the massive power transformer centered between them. All three transformers are housed in glass topped extruded enclosures, each displaying the wiring diagram for each transformer. A 70th Anniversary badge is laser engraved into the top plate of the enclosures… more.

Buy Cary Audio SLP Tube Preamplifier in Singapore,Singapore. Rare early days Cary Audio SLP Tube Preamplifier with signed chasis (dated 22/11/93 - 4th.

ART Tube MP Project Series USB


For screen reader problems with this website, please call 2 0 3 7 7 7 1 7 5 0 Standard carrier rates apply to texts. The C70 70th Anniversary Vacuum Tube Preamplifier harkens back to yesteryear with an all analog design and a retro look. The glass front panel is inscribed with special McIntosh 70th Anniversary lettering. All control operations are done via knobs and rocker switches. Modern LED indicators will denote input selection and volume level. The C70 has seven inputs consisting of two balanced inputs, three unbalanced inputs, and one each of Moving Coil and Moving Magnet phono inputs. For outputs, there are two pairs each of balanced and unbalanced connections. On the front panel, bass and treble tone controls are included and can be adjusted in 2dB increments via rotary knobs. Rotary knobs are also used to adjust the impedance and capacitance for the phono inputs.

Preamps (1)

tube preamp 70

Fully balanced phono stage 5 equalization curves; 2 noise filters. Thank you for contacting McIntosh Laboratory, Inc. We will reply to your message as soon as possible. As explained in the Privacy Policy, Our Website uses cookies to improve your experience and to analyze our website traffic.

The NF control varies the amount of Negative Feedback present in the circuit.

C70 - 70th Anniversary 2-Channel Vacuum Tube Preamplifier


Stock Item: Ships from our shelf quickly in almost all cases when ordered before our ship cutoff times. Direct Ship: Non-stock item, but normally ships quickly from the manufacturer or alternate warehouse. Built To Order: Item is custom built per the options chosen and quickly shipped out upon completion. New Item: We have this on order, the manufacturer hasn't shipped but you'll be in line upon arrival. The NF control varies the amount of Negative Feedback present in the circuit. Counter-clockwise brightens and moves the sound forward while raising harmonics and sensitivity.

Coil Audio CA-70 PS2 dual channel Preamp

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. The Coil Audio CA produces the typical thick tone of vintage tube preamps. Controls include Input and Output gain, phase reversal and Negative Feedback to brighten or darken the tone of the preamp by modifying the amount of negative feedback present in the circuit. The Low switch works in combination with the Negative Feedback to boost or cut low-frequency energy. The Hi switch offers gentle filtering of the upper frequencies. The two-stage output features CJ7 and 6C5 with the output control placed between each stage.

Great Sounding 2 channel tube Preamp. CA Modular Mic/Line AmplifierThe CA is based on a two-stage circuit invented by Western Electric in

Coil Audio CA-70S Preamp

If your in the U. The CA's will be buried with me. Not that they are the same as a V7x module, but might be interesting nonetheless. I hope this helps, howdy Cheu.

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Coil Audio announced the most recent addition to their family of boutique pieces of audio hardware at Summer NAMM

A circuit concept that has bewitching midrange in both push-pull and single-ended amplifiers due to the low distortion. But unfortunately it is paired with low power, dynamics and excessive heating of the amplifier. It was therefore important to develop a concept that would bring the undisputed tonal advantages of this principle to life. Push-pull concepts, on the other hand, can deliver times the output power compared to Class-A, but lack with inharmonic distortions i. Two soundscapes with followers on both sides. Of course, Andreas Hofmann was tempted to combine both concepts into something new. After extensive development, a new amplifier concept was created: The V 70 Class A, a Class A push-pull amplifier in a pentode circuit.

The Coil Audio CA produces the typical thick tone of vintage tube preamps. Controls include Input and Output gain, phase reversal and Negative Feedback to brighten or darken the tone of the preamp by modifying the amount of negative feedback present in the circuit. The Low switch works in combination with the Negative Feedback to boost or cut low-frequency energy. The Hi switch offers gentle filtering of the upper frequencies.




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  1. Crispin

    Rather than criticize, recommend the solution to the problem.