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Ming Da 7R Vacuum Tube Preamplifier | | Asking Price: | $499.00 | | Original Price: | $499.00 | | Condition: | NewItem Condition Descriptions- New
Brand new and factory sealed in the box. - Excellent
Perfect in every way. Indistinguishable from a new product but not factory sealed. - Very Good
Used but with no major damage anywhere. Item works as new and has no visible damage. - Good
Used with 1-2 minor scratches anywhere on the item. Item works as new. - Fair
Well used with minor scratches anywhere on the item. May have minor functional issues. - Parts Only
Does not work, use for parts only.
| | Location: | Geneva, IL | | Included Items: | Owner's Manual
Original Box
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| Description: | Product Photos: | A classic from Ming DA is the all tube two double triodes
per channel, tube rectification preamp with choke
filtering, mostly direct coupling, DC heaters in the first
stage, completely hard wired, Gold plated terminals,
Audiophile components by Solen, Rubycon, Japanese
Alps “blue” volume pot. Uses 1 5Z3P rectifying tube, 2 12
AX7s and 2 12 AU7s
Class ‘A’ Sound
Using a 12AX7 for gain and a 12AU7 for output muscle.
The MC7R has a very extended frequency response with
a smooth warm sound, and the enormous overload
margin The Ming DA MC 7R will handle the dynamics
and transients of the most demanding input source. An
extremely short path gives less chance of degradation.
A polished stainless steel chassis is, chosen for its non-
magnetic neutral sonic qualities. The front & rear plate is
10/6mm solid anodized alloy plate. The steel transformer
housing has an enamel crackle finish. The two
transformers and choke are encased in resin to
minimize noise Inside the chassis is a painted steel sub
chassis. The knobs are gold plated alloy. High quality
polypropylene caps are used in the signal path.
Resistors are oversized 2w metal oxide and wire wound
chosen to suit their application. The volume control is the
famous blue ‘Alps’ potentiometer, chosen for its superior
sound quality.
· Input voltage: 100mV-22V
· Output impedance 100K
· Input voltage: 100mV-2000mV
· Input impedance:100K
· Total harmonic distortion =0.003%
· Frequency respond:10Hz~75KHz±1dB
· Signal-to-noise ratio 91dB
· Input jacks 4 groups
· Output jacks 2 groups
· Vacuum tubes:
5Z3×1 rectifying tube 12AX7×2 12AU7×2
· Supply voltage: AC110V/220V 50Hz/60Hz
· Power consumption 45W
· Volume 34L×22W×12H(
· Weight 9.5kg
Payment Terms: Paypal, Credit Card, Check
Please visit our site at http://www.pacificvalve.us for more details
Shipping Terms: United States, Canada, Worldwide, Local Pick-up
Please visit our site at http://www.pacificvalve.us for more details
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