Aesthetix Callisto Signature Edition Tube Preamplifier w/Dual Power Supplies
$8860.0 Buy It Now or Best Offer
free,30-Day Returns
Seller Store skyfiaudio
(455) 100.0%,
Location: Glen Rock, New Jersey
Ships to: US,
Item: 295670713041
All returns accepted:ReturnsNotAccepted
Return policy details:
Aesthetix:Aesthetix
MPN:Callisto Signature Edition
Callisto Signature Edition:Callisto Signature Edition
Number of Channels:2
Type:Tube Preamplifier
Aesthetix Callisto Signature Edition Tube Preamplifier w/Dual Power Supplies Aesthetix Callisto Signature Edition Tube Preamplifier w/Dual Power Supplies This is the Flagship line stage preamp from Aesthetix (Jupiter Series), utilizing dual power supplies (one per channel) along with dual mono construction. These don’t come up for sale very often. This unit was sent to Aesthetix back in 2001 for the Signature Edition upgrade. Then it was It was sent to Aesthetix again in 2002 and updated to independent power supplies back. Aesthetix is still in business and still offers service and upgrades to this model. CALLISTO TUBE LINESTAGECallisto is an all-tube linestage suitable for the most demanding audio systems and listeners. Fully balanced circuitry from input to output, including internal balancing of single-ended inputs, results in common mode signal rejection and cleaner sound. The innovative discrete switched resistor volume control maximizes resolution at any listening level. A separate power supply chassis removes any possibility of transformer noise corrupting the delicate audio circuitry. Peter Moncrief Stealth Capacitors are uséd in the Eclipse Edition for unparalleled sound quality.• Fully balanced differential circuitry with ability to internally balance a single-ended input signal.• Innovative and unique mechanically switched discrete resistor volume control with 46 positions using Roederstein resistors.• Separate volume controls and input selectors for each channel.• All tube amplification and output (8 tubes total).• Separate vacuum tube regulated power supply utilizing 8 tubes.• Two sets of XLR and two sets of RCA outputs per channel.• Six inputs: First two single-ended (rca) or balanced (XLR); remaining four single-ended (rca) only.Dual Power SupplyCallisto comes with a single power supply standard, or optionally a second power supply may be added for true dual-mono. JUPITER POWER SUPPLY DETAILOne defining characteristic of the Jupiter Series is separate power supplies. Each main unit, or audio chassis, is dual mono in construction; there are completely separate left and right audio boards and each has its own power connector on the rear of the chassis. Each main unit requires at least one power supply, a single power supply cannot power both an Io and a Callisto.There are two versions of power supply available: Stereo or Dual Mono. In the stereo configuration, a single power supply powers both audio channels and has two power connectors on the rear. In the Dual Mono configuration, two separate power supplies are uséd, each with a single power connector. In the Dual mono configuration, the unit becomes pure dual mono, all the way down to the ac wall connection!The Jupiter Series Power Supply is the size of a power amplifier and weighs approximately 50 pounds. The Power Supply has two main sections, the heater supply and the high voltage plus and minus supplies. At the heart of the heater supply is its massive, low flux, 210 VA power transformer which has fourteen separate secondary windings that are individually regulated and supply both the Power Supply and main unit heaters. The high voltage supply is composed of a similar massive 170 VA transformer which feeds a common-mode choke input filtering network and then high current vacuum tube regulators (one EL34/6CA7, three 12AX7 tubes per regulator). Each regulator is capable of supplying 600 volts at 100mA. There are two such regulators in the Power Supply. Each separate amplification or buffer stage has its own power supply filtering network and regulated heater supply to isolate individual sections and prevent stage interaction. CALLISTO SPECIFICATIONSInputs:Six inputs:First two single-ended (rca) or balanced (XLR);Remaining four single-ended (rca) onlyOutputs:2 RCA (SE) and XLR (balanced), 1 tape RCALine level gain:23 dB single ended (SE), in/out, and 29 dB balanced/outVolume control:Switched resistor network volume control with 46 stepsFront panel controls:Left and right input select, left and right volumeRemote controls(optional):Volume, mute, balance, phase (option)Frequency response:+- 0.25 dB, 20 Hz – 20 KhzSignal to noise:measured at 70 dB minimum, A-weighted (ref 1 mv input, 75 dB gain setting)Line input impedence:100K ohms SE, 200K ohms balancedOutput impedence:1K ohms SE, 600 ohms balancedRecommended amplifier load:10K ohms or greater (SE), 20K ohms or greater (Balanced)Tubes, each channel:(line section) V1 (6922), V2 (12AX7), V3 (6922), V4 (6SN7)Power consumption:300 wattsPhysical dimensions:Main unit, MkII or Signature: 5 5/8″ high, 19″ wide, 18″ deep including jacksMain unit, Eclipse: 5 1/2″ high, 17 1/2″ wide, 18″ deep including jacksPower supply, MkII or Signature: 5 5/8″ high, 19″ wide, ” deep including jacksPower supply, Eclipse: 5 5/8″ high, 17 1/2″ wide, 18 1/4″ deep including jacksShipping weights:Main unit, MkII or Signature: 42 LbsMain unit, Eclipse: 47 LbsPower supply, MkII or Signature: 50 LbsPower supply, Eclipse: 55 Lbs The SkyFi Testing Process for Preamplifiers: We start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR. When we first power on a preamplifier we connect its RCA output to a Sencore PA81 Power Analyzer which simulates real world loading conditions and gives us an oscilloscope interface. The first order of business is checking that the volume control works smoothly throughout its entire range with acceptable channel balance. This is accomplished by feeding a 1KHz sine wave into one of the preamp’s line level inputs while monitoring the preamp’s output on an oscilloscope. We then switch to a 1KHz square wave to test the tone controls, loudness function, and filters where applicable. During this step we are watching for equal alteration of the test signal by both channels. This also helps us identify dirty controls that will need treatment. Once the basic line stage functions are verified, we test each input individually. This is especially important for devices that use relays to select their sources. If the preamp is equipped with a phono stage we test that as well. We use an inverse RIAA filter which allows us to feed a reference test signal into the phono input with the proper RIAA equalization and level. A square wave or sine sweep is uséd to verify that the device’s phono stage is faithfully reproducing the RIAA curve. If the preamp under test has balanced inputs and/or outputs these are tested as well. We finish up our bench testing with a listening test with our bench amplifier and reference speakers. During this test we check for hum or hiss that may not have shown up in earlier testing. We also check that all of the tone controls and filters perform as expected. If the preamplifier has remote control functions these are also tested. Preamps with tube circuits or complicated power supply topologies are connected at our long term test rig for extended stress testing under real world conditions. Item Included Original Box Not Included Manual Not Included Remote Factory Optional – Not Included Cables Yes – As Pictured Physical Condition 8 / 10 Working Condition 10 / 10 *Scroll down to view additional images for this listing and click to enlarge. **Please note we are not a repair shop and only restore what we own. ———- SkyFi Audio – Curators of Vintage Audio Gear SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of high end audio equipment. We only buy equipment that we admire and are passionate about. No mid-fi, no gimmicks, no junk. Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units. Please note we are not a repair shop and only restore what we own. Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Project, and Sony ES, we have access to OEM parts, service, and support. ———- PURCHASING GUIDELINES: 1) This item will be professionally packaged and insured for safe transit to your home unless you opt for local pickup from our shop. All local pickup items are only wrapped in industrial strength clear stretch wrap if the original manufacturer packaging is unavailable. Local pickup is available in Glen Rock, NJ, 07452, just a half hour drive from Midtown Manhattan, with convenient parking near our building. If we don’t have the original packaging, we use heavy-duty double-ply corrugated boxes with custom made to your item SealedAir Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging! We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box. 2) We will not review or accept any offers that do not go through the official eBay system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please do not message, email, or text any offers. 3) All listings are eligible for the eBay Global Shipping Program unless the item exceeds the maximum weight/price requirements to your country. If this is the case simply message us via eBay. We only accept bank wire transfers for international payments and frequently ship worldwide via UPS. 4) Please ensure your shipping address is correct within eBay as we will ONLY ship to the eBay/PayPal Confirmed Shipping Address. No exceptions. 5) eBay may charge and collect sales tax to your state/jurisdiction which we have no control over. eBay v1.7 × × × × × × × × × × × × × × × × × × × Buy now and save! Tell a friend Visit store Watch now Postage info UPS Ground – $0.00 Local Pickup – $0.00 Click the Postage tab above the listing description for more info Additional delivery notes PICK UP OPTION Our items are available for pick-up. Pick up procedure is as follows: Purchase the item through eBay Email us to coordinate pickup PAYING VIA PAYPAL We accept PayPal on our all our items so you can shop with confidence. Simple choose the PayPal option when proceeding through the checkout. Additional Information No additional information at this time Ask seller a question You might also like Dynavector 10×3 High-Output MC Phono Cartridge Music Reference RM-5 MK II Tube Preamplifier with Phono Music Reference RM-9 Tube Amplifier With EL34’s Marantz Model 150 Vintage AM/FM Tuner with Scope Contact To contact our Customer Service Team, simply click the button here and our Customer Service team will be happy to assist. Ask seller a question © SkyFi Audio Postage Click the Postage tab above the listing description for more info Payment Accepted Payment Methods PayPal Returns Returns are not accepted Seller will pay for return shipping. eBay integration by
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