Label / Make
Genre / Model
- Please Select
- Name: A to Z
- Name: Z to A
- Price: Low to High
- Price: High to Low
Manley Jumbo Shrimp Pre-Amplifier
Have a question about this product? Please email our audio advisor or call 1-877-929-8729 with any questions or concerns regarding your equipment purchase.
Handcrafted in the USA
The JUMBO SHRIMP shares key outward features found in many of its counterparts both past and present. It is a twochannel single-ended line level control preamplifier with five sets of stereo inputs, and two sets of paralleled stereo line outputs. A five-position input selector switch routes the chosen signal directly to the first amplifier tubeís control grid. Amplified signals, boosted about 4 times [11.8 dB] are then fed through a dedicated White-Follower stage (using 5670 triodes) to effortlessly drive the (motorized!) high quality ALPS stereo variable attenuator, known for its stability, long life, ease of servicing and good inter-channel level tracking characteristics. This is followed by a similarly appealing, center-detented ALPS stereo balance potentiometer.
The attenuator network output is then fed to a special White-follower output stage. This output circuit has been a favorite of ours for many years mainly due to the stageís inherently low output impedance, simplicity, wide bandwidth, ease of drive, modest feedback requirements and graceful overload characteristics. Ordinarily, the typical JUMBO SHRIMP user would not ever begin to approach the limits of this output stage under normal line and loading circumstances.
High quality polypropylene dielectric film-and-foil capacitors have been employed at all signal-coupling points in the circuit along with two extravagant 30 microfarad metalized monsters coupling the output stage signals to the output RCA jacks. These are all MultiCaps made by our buddy Bas Lim at Rel Cap. We know you would rather listen to superior capacitors such as these over some cheap electrolytic capacitors like you might find in other gear.
But the JUMBO SHRIMPís cardinal feature is its uncomplex non-inverting signal path. This minimal signal path approach is designed to bring unbalanced RCA-type line inputs up to levels suitable for proper drive of downstream power amplifiers in the simplest and most direct way possible. This is accomplished by using only three active stages, as described above, through the judicious use of vacuum tubes, whose purpose-designed application in audio amplifcation is, as always, pressed to full advantage. By so doing, the endeavor here is to provide the most direct, uncolored, quiet and wide-band signal path possible so that the native character of the chosen source material may be heard with out encumbrances from a set of imposed limitations brought on by the preamp. In this spirit, there are no provisions for balanced inputs or outputs. Since the whole guts of the Jumbo Shrimp are inherently single-ended, adding balanced I/O would require additional circuitry, transformers, or ICís which would inevitably color the sound.
Lastly, we would be remiss if we did not mention the clever REMORA REMOTE CONTROL that comes standard with every Jumbo Shrimp. This little box commands the motorized ALPS volume control via radio frequency signals, so it works through doors, walls, cabinets, you name it!$3,850.00Manley Jumbo Shrimp PreamplifierBuy Now