The MANLEY GOLD REFERENCE MULTI-PATTERN MICROPHONES are a statement, quite simply, of the finest microphones that money can buy in the pursuit of truly accurate musical recordings. The Gold Reference Series employ our own design of large capsules (1.25 inch overall, 1 inch diaphragm diameter) which are executed to precise tolerances made possible by modern micro-milling machinery available today in California. The capsule rings and back-plates are milled from solid brass. The gold diaphragm film comes from Germany and is tensioned using proprietary techniques by David Josephson ensuring capsule-to-capsule constancy, combined with the speed, "air", and superb ultra-high frequency response you have only dreamt about.
The all-tube electronics in the MANLEY REFERENCE SERIES MICROPHONES are built around two triodes in cascade forming an entire gain-block. We have recently switched to a dual-triode 12AT7 tube, easily obtainable and replaceable, mounted in a ceramic socket. (We originally used 6072A until it became impossible to find quiet ones out of the NOS dreck left on the market, then we used 12AX7 for awhile.) The output is coupled through a MANLEY output transformer of unparalleled quality and substantial physical size employing nickel laminations with "hum bucking" bi-filar windings, encased in mu-metal. The polar pattern control is continuously variable between the OMNI, CARDIOID, and FIGURE 8 positions vastly increasing this mic’s versatility. The Gold Mics make it possible to exactly tailor the proximity effect to achieve the desired character.
We have chosen a very open weave stainless-steel grille for the capsule window which allows all the highs to reach the capsule unimpaired letting the engineer choose if, when, and how much pop screen is appropriate. As a result, the Reference Gold reaches to the furthest extremes of highs and lows with gorgeous natural acoustic smoothness. Some engineers tell us it sometimes "hears" more than they do! A locking 6-pin XLR connector for the 30 foot power supply cable carries the stringently filtered B+ and regulated heater voltages from the separate dedicated power supply. The audio signal exits the PSU via a traditional 3-pin XLR jack. The microphone body is machined from brass providing excellent shielding properties, polished to a high lustre, then plated with 24 karat gold for an impressive finish, inspiring confidence in artists and producers.
Our proprietary precision suspension system is provided with each REFERENCE MICROPHONE (the capsule itself is mounted onto a neoprene-rubber shock-mount.) Because the entire working "guts" of the microphone may be removed for service in one piece from the housing, it is envisioned that the microphone need not be removed from the suspension. We also provide a very useful swivel of our own design with every REFERENCE MICROPHONE; its T-bar handle and locking clutch action require no tools to adjust. And no MANLEY microphone would be complete without a genuine leather capsule protector which slips (and ties) onto the end of the microphone to protect the capsule when not in use.
- All-Tube triode design 12AT7 (2011 build. Previous versions used 12AX7 and 6072.)
- -10 dB switchable pad
- Frequency response: 10Hz-30KHz
- Sensitivity: 17mV/Pa
- Noise typically -120dB EIN
- Max SPL: 150dB
- Output Impedance: 250 Ohms
- Weight: 2.25 lbs (mic)
- Weight: 2.5 lbs (PSU)
- Size: 2" x 9.7" x 4.5" (mic including suspension)
- Size: 5" x 8.2" x 3.4" (PSU)
- Shipping weight: 15 lbs
- Selected matched pairs available
- Outboard Power Supply is factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.
- Operating Mains Voltage changeable with power transformer re-wiring via internal jumpers and fuse value change.
- Mains Voltage Frequency: 50~ 60Hz
- Mains Fuse: 250mA @ 100~120V; 125mA @ 220~240V operation
- Power Consumption: 70mA @ 120V = 8.4 Watts
If you need to make a tube conversion, please contact our tech support folks. Or if you want to stick with the 6072 tube, you can try to find some on the open market. We have none in stock anymore.
Note: The custom transformerless internal preamp version is NO LONGER available to order.
Another note: Older units with two connectors on the base of the microphone had a a locking 4-pin connector to receive the B+ and Heater voltages from the PSU and a second locking 3 pin gold XLR connector for the audio signal output. This allowed the audio to be picked off right at the microphone so that the customer could use whatever cabling he desired.
FREQUENTLY ASKED QUESTIONS
Why should I order replacement microphone tubes from you?
The microphone grade tube is tested at the factory for lowest noise, using a test fixture we have built that duplicates the Manley microphone circuit. To the best of our knowledge, there are no other tube vendors that have this purpose-built tester. This testing yields very few tubes suitable for use in the microphones.
Tube quality, especially noise characteristics, varies over time and batch-to-batch. At any particular point in time, we may be using a different tube than what is listed. There is nothing "special" about a Sovtek or Ruby, or anything else we use; what is special is the characteristics we grade and select for including the low noise requirement, and the testing required to insure this.
How to change the O-RINGS:
The mic suspension is held onto the mic by a set of red silicone o-rings connecting FIVE pillars surrounding the mic, one set on the top and the other on the bottom of the mic. There are two sets of stainless steel screws and spacer nuts that hold the silicone o-rings onto these points and all you do is loop the o-rings onto these posts inner and outer. You can double up the o-rings for extra security and put two of 'em on each point and order two sets (20 total) if you'd like to.
If you needs to order more o-rings, you can order a set of them from our parts store, www.tubesrule.com. They are RED SILICONE #114 O-RING's.
How to change a TUBE:
Disconnect the power cable at the mic. Do not remove the mic suspension. You never need to. Remove the three phillips screws at the base (red part) of the mic that hold the case on. Grasp the body of the mic with one hand, grasp the base with the other hand. Carefully pull at the base of the mic (sometimes a slight twist will help), and slide the base out of the body just enough to expose the tube. Grasp the tube while holding the tube socket, and wiggle and pull to remove it. Install a new tube and put the case back on.
BUZZ! My mic started buzzing! Those damn bees...
First thing I would check is that all the case/chassis screws are in nice and tight and making good ground to exposed metal. Remove the 3 x silver phillips screws that hold the cover/case onto the mic. You can slide the body of the mic up a little bit to check the holes on the base. Slide up and wiggle. (The base and guts of the mic are all contained by a sub-chassis.) Make sure there is silver metal on the case housing in the countersink and also under them on the base piece. Use a 1/4" drill bit in your hand and turn and press the drill bit a few times to make sure you have exposed silver metal showing in those places. Put the screws back and test. Next: There are some little set screws around the circumference of the base piece hiding in their holes. Using 1/16th allen key, back them out and run them back in. These are the guys who hold the XLR connector in place. We use stainless steel ones these days. Try those and re-test.
If the buzz is still there, with the mic on, see if touching the screen or top of the screen makes any buzz go away. Hold the XLR cable shell so you are making the ground path. If the screen is loose, it will need to be expoxied back in place with silver conductive epoxy. If touching the case makes the buzz go away then we still have grounds not being made so repeat steps 1 & 2.
Next would be to replace the tube with any good working 12AX7 or 6072 you have kicking around to see if it is the problem.
Next would be more advanced, checking the power supply volts, especially the heater regulator to make sure you have 12V coming off him... looking for a bad cap in the PSU that isn't doing his job of removing ripple, etc. If nothing you try works then we'll arrange an RA# for you to send it in.
Where is my mic's serial number?
The Manley Reference Microphone serial number is located on the inner face of the mic suspension plate flanking the hole where your mic stand attaches to the mic suspension.