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Sale: $3.49 (42% off)
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Professional Valve Oil
Remaining Quantity: 83
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Price valid on in stock items only.
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Protect your investment with aPlatinum Coverage warranty plan:
There are no products for the condition you selected. Please make another selection.
This instrument or product has been carefully played/used and returned to us in
virtually new condition, however its packaging may not meet the standards set by
the factory. Also, it no longer carries the manufacturer's warranty. If you're looking
for a virtually new instrument in possibly less-than-perfect packaging, this is
a great value. We feel so strongly you'll like what you see, we're including our
60-Day Satisfaction Guarantee on instruments and 30 days on accessories, to this used product making it a no-risk purchase.
Very Good: This instrument or product has been carefully played/used and shows few,
minor signs of use. In most respects it looks and performs like new and may be considered
equivalent to display units found in retail stores. Its packaging may not meet the
standards set by the factory and it no longer carries the manufacturer's warranty.
Condition 2 products are a terrific value and you can buy with confidence knowing
our 60-Day Satisfaction Guarantee on instruments and 30 days on accessories applies to this used product.
This instrument or product is in good working condition but has one or more cosmetic
flaws beyond those of a Condition 2 product. These flaws are typical of an instrument
or product that's seen normal wear and tear, including incidental scratches, chips,
dings, dents or other imperfections. It performs just as well as a Condition 1 or
Condition 2 instrument/product. Its packaging may not meet the standards set by
the factory and it no longer carries the manufacturer's warranty. Condition 3 is
a great choice if you're looking for performance and value and not as concerned
with cosmetics. You can buy with confidence knowing our 60-Day Satisfaction Guarantee on instruments and 30 days on accessories
applies to this used product.
This instrument or product is not in working condition and needs repair, but can
be brought back to full functionality with replacement of parts or some skilled
repair work. If you are a do-it-yourselfer or know a skilled repair person this
is a terrific value. Condition 4 products are sold AS-IS: they do not come with
a manufacturer's warranty and are not returnable.
This instrument or product has been damaged beyond what we judge is reasonably repairable.
It's best used for spare parts or to practice repairs on, and at this price Condition
5 products are sold AS-IS: they do not come with a manufacturer's warranty and are
Accidental damage, normal wear and power surges are no longer an issue with these comprehensive and affordable plans. We even pay to ship your gear for repairs. More details.
Covers much more than the original manufacturer's warranty:
Limit of Liability: The least of the cost of (1) authorized repairs, (2) replacement with a product of similar features, (3) reimbursement for authorized repairs or replacement or (4) the price that you paid for the product.
*Limitations and exclusions apply. See terms and conditions for program details
PreSonus ADL 600 Stereo High Voltage Tube Microphone PreampThe PreSonus ADL 600 is a high-voltage, 2-channel microphone preamp designed by world-renowned analog tube circuit designer Anthony DeMaria. It utilizes a Class A discrete design with 3 vacuum tubes per channel for maximum headroom and tonality.Control and FlexibilityThe ADL 600 is designed for supreme sonic performance and flexibility with XLR microphone/line inputs and 1/4" instrument inputs. The input selector allows for selection between Hi-Z instrument input, line input, and 4 different mic impedances for a number of applications. The rotary High Pass Filter switch has 3 settings (40Hz, 80Hz, and 120Hz @ 6dB per octave) for controlling room rumble and low-frequency noise. The input gain attenuator delivers 5dB-step increments and a total gain of over 72dB. The output stage is controlled by a variable conductive plastic attenuator that delivers +/-10dB of fine tune trim adjustment to dial-in the perfect gain structure for the application at hand. The ADL 600 also includes 48V phantom power and a -20dB pad. Under the HoodThere are no op-amps or integrated circuits (IC's) in the signal path to ensure the purest sound possible. The dual-transformer design guarantees ultralow-noise operation with maximum common mode rejection.MeteringThe ADL 600 is loaded with both fast-acting 8-segment LED meters for accurately detecting fast transients and peaks, as well as large analog VU meters for metering output level.ComponentsThe overall approach to the ADL 600's design was to keep the signal path as simple as possible by keeping the component count to a minimum. The few components that are in the signal path were chosen for their sonic qualities: custom audio transformers, polyfilm pulse capacitors, 1% metal film resistors, and conductive plastic potentiometers. Also, rotary switches and fixed 1% metal film resistors are used in the preamp gain circuit to keep noise to a minimum and to prevent any coloration that may be caused by a potentiometer.The custom-designed input transformer is fully encased in a Mumetal enclosure, yielding excellent noise characteristics and magnetic shielding. The transformer interfaces the balanced mic/line inputs to the tube preamp circuits. On the primary side of the transformer are circuits for +48V phantom power, microphone impedance, 20dB pad, and line input. All of these are switched by sealed relays for reliability. Also, the relays are located at the point where the switching is required. This minimizes the signal path length and helps to keep noise low.The combination of a 12AT7A tube and a 6922 tube form the principle gain stage, giving the ADL 600 its open and airy sound. This is primarily due to the circuit topology and the wide power supply rails applied to this stage--+/-320VDC. A high endurance Grayhill rotary switch and 1% metal film resistors are used to set the gain in 5dB steps. Polyfilm pulse capacitors are used for interstage coupling to maintain stunning clarity. The preamp stage drives the High Pass filter circuit and the Output trim. The High Pass filter can be bypassed or set to 40Hz, 80Hz, or 120Hz. Polyfilm capacitors are used for the filters, which are first-order and provide 6dB/octave roll-off. The Output trim potentiometer feeds the input to the second 6922 tube, which drives the Mumetal shielded output transformer. A DPDT relay allows for output phase reversal at the primary side of the output transformer.
Order today with the no-risk assurance of our Total Satisfaction and Low Price Guarantees!
* Price guarantee valid on all new in-stock merchandise sold by an authorized U.S. Dealer. Guarantee does not apply to discontinued, blemished, damaged, closeout, open box, refurbished or auction items. You will be contacted via email shortly after submission of request.