"Trumpet Classic - MM Vacuum Tube Phono Preamp
The Trumpet phono preamp is a reference quality unit for the most demanding of audiophiles. It's main features are fully balanced operation and switchable polarity. Housed in a single chassis, the power supply is mounted well below the amplifier (about the same height as separate stacked boxes). Eight hand-matched vacuum tubes complement the nearly dual-mono construction of the amplifiers.
The Trumpet implements a number of unusual circuit topologies and tricks to improve performance (way too many to list here). The highlights include bipolar high voltage power supplies that are fully choke regulated (continuous current), choke regulated dc heater supply, class A differential long-tailed gain pairs, current source loaded cathode follower outputs, passive shunt power supply regulation, split RC equalization, and no feedback anywhere. Frequency response is tremendous, flat from 5Hz out past 250kHz. Distortion is exceptionally low at 0.03%.
Premium components are used throughout. Gold-plated connectors, sockets, and switches, audiophile-grade polypropylene coupling capacitors, metal-film resistors, soft-recovery diodes, film bypass capacitors, high-grade 0.063" thick aluminum sheet metal, and thick computer-engraved aluminum faceplates.
The chassis is a marvel of anti-vibration architecture. Circuit boards are freely hung like suspension bridges from solid support towers. Sorbothane feet provide isolation from the mounting surface. The tower design benefits from an inherent chimney effect for enhanced convection cooling and increased airflow past the tubes. The sheet metal chassis forms a complete electric field shield around the electronics (with the exception of the exposed tube plates) with careful attention paid to internal shielding and grounding."Above is the mfr's description of the current version Trumpet Classic MM Tube Phono Preamp. I purchased this item from Jim Hagerman in January 2013. Jim and Company built it and I received it February 2013.
I should point out that this phono-pre is a MM style preamp. I have used it for moving coil phono cartridges much of the time I have had it by simply inserting a step up transformer between cartridge out and preamp in....as is often done. I have also used it with some very good moving magnet cartridges I own and was very pleased with its performance with them. After owning it for enough time to get a good impression of its abilities and qualities I wrote a review of it on my site which can be read here:
http://www.theanalogdept.com/hagerman_trumpet.htm
My reason for selling is funding. This unit has never done a thing wrong. It is a fabulous sounding phono preamp and very able to bring the best out of my mix of source components. Specs:
44dB gain (1kHz)
47k ohm input impedance
800 ohm output impedance
+/-0.5dB equalization (20Hz to 20kHz)
5Hz to 250kHz bandwidth (-3dB)
<0.03% distortion (1kHz)
82dBA signal-to-noise (ref 5mV)
12 x 7 x 12 inches
net weight: 17 lbs
120V
12AX7 x 4 (Sovtek), 12AU7 x 4 (Electro-Harmonix) Shipping container will be double boxed and well padded. I prefer to ship via FedEx ground. I can use any other shipper/carrier per buyer preference. Local pickup is possible. Ship rate to be carefully determined. I do have an account with FedEx and can get a discount with that shipper, which I pass along to the buyer. Price: $1750.00 OBO
Paypal (can we split transaction fees please) Money Order Cash ( if local pick-up only) All reasonable offers considered. Low-ball offers are politely disregarded. Any questions can be directed to me through Asylum Email.
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