Sound Pure's Take

Honesty and detail are what this mic delivers! Josephson has married the Geffell omni 221 capsule with their own high-voltage body to give you the most detailed omni mic in the world! Also, you don't need a high-voltage mic pre - the magicians at Josephson have made their 200 volt amplifier body work on any standard 48 volt phantom power! The MK221 capsule is incredibly rigid, which is what offers so much detail and accuracy. Combined with the high-voltage body, the 617 is perhaps the most detailed omni-directional microphone we've ever experienced!

 With so many microphone builders poring over technical drawings and schematics of 50-year-old Neumann and AKG condenser designs, David Josephson is constantly pushing the envelope rather than regurgitating. The C617 is a prime example of this effort. A far cry from the KM84s, C28s, or KM54s of yesteryear, the C617 delivers a clarity, depth, and level of definition that feels supernatural, yet more musical than other hyper-clean SDC options. Most notable to the C617 is the mic body, designed to be powered by 48V phantom, but capable of applying a mind-blowing 200V to the capsule.

Watch & listen

Josephson C617 Omnidirectional Microphone - Interview w/ David Josephson at AES 2011

The C617 from Josephson Engineering is high voltage metal diaphragm omni mic. This powerful microphone provides extremely detailed and clean sounding recordings on a wide variety of applications. In this video, Todd disc... Read more

The C617 from Josephson Engineering is high voltage metal diaphragm omni mic. This powerful microphone provides extremely detailed and clean sounding recordings on a wide variety of applications. In this video, Todd discusses with David Josephson the technology behind the microphone as well as the special Microtech Gefell MK 221 capsule made specifically for the C 617s. Watch our other interviews with the Josephson crew at AES 2011. We have videos on the new SPB40 baffle for the C617 microphones as well as an interview on the new C716 and the unique grill featured on the 716. For more information about these products, visit SP.com or give us call! 919.682.5552.

Goodall AKP-14 Koa Parlor 5528 Acoustic Guitar Demo

Also in this recording Goodall AKP-14 Koa Parlor 5528 Acoustic Guitar Sebatron AXIS 200VU Two Channel Tube Preamp Lynx Aurora 16 and HD Card D/A and A/D Converter

In response to our customers desire for a smaller instrument with the voice of a larger guitar, James Goodall has introduced two new elegant designs which comprise the Parlor series. The reception of the Parlor series at... Read more

In response to our customers desire for a smaller instrument with the voice of a larger guitar, James Goodall has introduced two new elegant designs which comprise the Parlor series. The reception of the Parlor series at the 1999 Summer Nashville NAMM (National Association of Music Merchants) show was phenomenal. Everyone was amazed at the fullness and richness of tone as well as their punchy clarity. Some even thought they were as loud as a Dreadnought bodied guitar. The Parlor series guitar has a shorter 25" scale length. It has a scaled down bridge, peghead and sound hole. It is available in a 12 or 14 fret neck joint with a non slotted peghead or an optional 12 fret neck joint with slotted peghead* and bronze patina Waverly tuners. The 12 fret model has a sweet, round and responsive voice similiar in tone to a classical guitar. The 14 fret model has a little more punch and clarity in the mid range, very similiar to our Grand Concert series instrument. The Parlor series is available with all the same fine options and wood choices as in all Goodall guitars.

Acoustic Guitar Recording - Keith Ganz Improvisation at SoundPure Studios

Also in this recording Schoeps Colette Mono Set CMC 6 + MK 4 LaChapell Audio 992EG Dual Mono Tube Preamp Vintech Audio X73i Pre/EQ CharterOak PEQ1 Stereo EQ Bricasti Design M7 Reverb Processor

Keith Ganz overdubs and layers several acoustic guitar parts, including rhythm, lead, and solo lines with a variety of Collings Acoustic Guitars at SoundPure Studios in Durham, NC. This video features the final perfor... Read more

Keith Ganz overdubs and layers several acoustic guitar parts, including rhythm, lead, and solo lines with a variety of Collings Acoustic Guitars at SoundPure Studios in Durham, NC. This video features the final performance. Check out our other videos to learn more about how this music video was made. We provide an overview of microphone recording techniques and discuss mic positioning, pickup patterns, as well as pairing microphones and preamps. Our second video features the acoustic guitars used in the performance as we discuss the types of wood used, body shapes and styles, as well as why we chose each guitar for specific parts. The third video details the techniques used to mix all of the tracks. We demonstrate how we used compression, EQ, Reverb and Delay as well as showing the different pieces of gear used. Give us your feedback! Call or email SoundPure with any questions you may have about the gear or techniques used. 919.682.5552. or 888.528.9703.

How to Mic an Acoustic Guitar Recording and Choose Your Preamp

Also in this recording Schoeps Colette Mono Set CMC 6 + MK 4 Vintech Audio X73i Pre/EQ LaChapell Audio 992EG Dual Mono Tube Preamp

The Microphone and Mic Pre selection for Keith Ganz's layered acoustic guitar piece is discussed here at SoundPure Studios. Jason teaches about the mic techniques used including spaced pair and XY techniques, differen... Read more

The Microphone and Mic Pre selection for Keith Ganz's layered acoustic guitar piece is discussed here at SoundPure Studios. Jason teaches about the mic techniques used including spaced pair and XY techniques, different pickup patterns, different capsule choices, with the Josephson C617 and the Schoeps CMC 6 with MK4 capsules, as well as preamp selection and pairing microphones with the LaChapell 992 EG and the Vintech X73i. To learn about the guitars used and the techniques used to mix this project, watch our other videos. Make sure to watch the final performance as well! We offer audio production training courses as well. This video provides a very small look into what those classes can offer. Call or email SoundPure today with any questions about the gear or techniques in this video. 919.682.5552 or 888.528.9703.

Collings D2H A VN Acoustic Guitar Performance

Also in this recording Lynx Aurora 16 I/O D/A and A/D Converter LaChapell Audio 992EG Dual Mono Tube Preamp

The D-2H with Adirondack Spruce top from Collings Guitars features the Vintage Now upgrade. This square-shouldered dreadnought acoustic is has fantastic bass response and is an ideal guitar for accompanying vocalists... Read more

The D-2H with Adirondack Spruce top from Collings Guitars features the Vintage Now upgrade. This square-shouldered dreadnought acoustic is has fantastic bass response and is an ideal guitar for accompanying vocalists or a classic choice for bluegrass players. SoundPure can custom order acoustic guitars from Collings to help you create an acoustic guitar with the tone woods and specs of your choosing. Thanks to Jazz Guitarist Keith Ganz for his fantastic performance. Call or email today to talk to our experienced guitarists. 919.682.5552. or 888.528.9703.

OM2H G SS from Collings with Keith Ganz

Also in this recording Sebatron AXIS 200VU Two Channel Tube Preamp Lynx Aurora 16 I/O D/A and A/D Converter

Collings OM2H G SS is an Orchestra Model acoustic guitar designed with German Spruce and East Indian Rosewood. This 14-fret acoustic has a compact shape and a relatively shallow body, barely 4 inches deep, which resul... Read more

Collings OM2H G SS is an Orchestra Model acoustic guitar designed with German Spruce and East Indian Rosewood. This 14-fret acoustic has a compact shape and a relatively shallow body, barely 4 inches deep, which results in balanced tone and an immediate response. The OM2H is extremely expressive and harmonically rich and the German Spruce top is sensitive to even the most subtle nuance of phrasing and has breathtaking overtones. This acoustic has a unique combination of rich harmonic content and definition of pitch. Call or email our experts at SoundPure for all of your guitar questions 919.682.5552, acoustics@soundpure.com

Eastman E20P Acoustic Guitar Played by Keith Ganz

Also in this recording Lynx Aurora 16 I/O D/A and A/D Converter Phoenix Audio DRS8 mk2 Microphone Preamp

The E20 P from Eastman Guitars is a parlor guitar in Eastman's traditional series and features beautiful chocolate brown Rosewood back and sides with an Adirondack Spruce top. The Adi top is nicely figured and very re... Read more

The E20 P from Eastman Guitars is a parlor guitar in Eastman's traditional series and features beautiful chocolate brown Rosewood back and sides with an Adirondack Spruce top. The Adi top is nicely figured and very responsive. This E 20 P is warm, punchy, and very dynamic. Thanks again to Keith Ganz for his incredible playing. Call our guitar experts today if you have any questions about this acoustic guitar from Eastman, or any other guitars in our inventory. 919.682.5552. or 888.528.9703.

Collings D2H G Acoustic Guitar with Keith Ganz

Also in this recording Sebatron AXIS 200VU Two Channel Tube Preamp Lynx Aurora 16 I/O D/A and A/D Converter

The D2H Dreadnought with upgraded German Spruce top by Collings is a square-shouldered 14-fret acoustic with new tonal clarity to the depth and warmth typically associated with large, deep bodied guitars. With bass respo... Read more

The D2H Dreadnought with upgraded German Spruce top by Collings is a square-shouldered 14-fret acoustic with new tonal clarity to the depth and warmth typically associated with large, deep bodied guitars. With bass response ideal for vocal artists this acoustic is also well suited for bluegrass flatpickers looking to compete with louder instruments. This guitar features East Indian Rosewood and a upgraded German Spruce top that provides a little more headroom as well as a 1 23/32" Nut width upgrade for players seeking the space to be a little closer together. Our guitar staff can help you with any questions about this acoustic guitar or any others from our vast inventory here at SoundPure.

Collings OM2H Cutaway Acoustic Guitar played by Keith Ganz

Also in this recording Phoenix Audio DRS8 mk2 Microphone Preamp Lynx Aurora 16 I/O D/A and A/D Converter

The Collings OM, Orchestra Model, Cutaway is a 14-fret acoustic guitar that is perfect for both fingerstyle players and flatpickers. The OM features dark and straight grain from East Indian Rosewood on the back and si... Read more

The Collings OM, Orchestra Model, Cutaway is a 14-fret acoustic guitar that is perfect for both fingerstyle players and flatpickers. The OM features dark and straight grain from East Indian Rosewood on the back and sides and select Sitka Spruce. This acoustic has classic, even balanced tone and ultimate access to the upper frets. The compact shape make the OM easy to handle and the relatively shallow body, barely over 4 inches deep, results in balanced tone and an immediate response. Call or email SoundPure for all of your guitar questions 919.682.5552 or acoustics@soundpure.com

Eastman E10 OM Acoustic Guitar Played by Keith Ganz

Also in this recording Vintech Audio 573 500-Series Mic Preamp Lynx Aurora 16 I/O D/A and A/D Converter

The E10 Orchestra Model by Eastman provides clarity and mid-range punch that shines with a variety of playing styles especially fingerpicking. This acoustic is from Eastman's Traditional Series inspired by the great f... Read more

The E10 Orchestra Model by Eastman provides clarity and mid-range punch that shines with a variety of playing styles especially fingerpicking. This acoustic is from Eastman's Traditional Series inspired by the great flattops of the Golden Era. The E10-OM has a strong voice with a comfortable feel and fingerpicking styles have plenty of nuance and volume. Thanks again to Jazz Guitarist Keith Ganz for his incredible playing. For acoustic guitar questions please call our expert crew here at SoundPure 919.682.5552

Sebatron Valve Mic Preamp and DI - The Axis 200VU -- Part II

Also in this recording Sebatron AXIS 200VU Two Channel Tube Preamp Lynx Aurora 16 I/O D/A and A/D Converter Peluso P 28 Pencil Tube Microphone

Sebatron's new preamp, the Axis 200VU, is a remarkable microphone preamplifier that has a wide range of abilities. The Axis 200 VU is very versatile and renders clear and clean tones as well as saturated, tube warmth.... Read more

Sebatron's new preamp, the Axis 200VU, is a remarkable microphone preamplifier that has a wide range of abilities. The Axis 200 VU is very versatile and renders clear and clean tones as well as saturated, tube warmth. Due to its high performance, this preamp is ideal for both professional engineers and home recording engineers. For more information on Sebatron's Axis preamp check out our website, SoundPure.com and watch more demonstrations and videos. Questions? Contact our engineer experts at SoundPure 919.682.5552.

From Josephson Engineering


The Josephson C617 is the second generation of our high voltage metal diaphragm omnidirectional microphone, suitable for the most critical sound recording and measurement applications. It operates from standard P48 phantom power yet provides full 200 volt polarize potential for a lab grade standard "half inch" microphone capsule. The C617SET is supplied with a Microtech Gefell MK221 capsule. The dynamic range is dependent on the inherent noise of the microphone capsule and the limits of P48 phantom power. The Josephson cascode FET front end circuitry introduced in the C606 is further refined in the C617, combined with our traditional balanced bipolar class-A symmetrical output stage.

For music recording, the Josephson balanced symmetrical circuitry together with a sub- micron thickness metal diaphragm capsule translate to the purest, most open sound possible. Pickup of sound pressure alone results in no proximity effect, very low sensitivity to wind noise, and phase accuracy that cannot be obtained with directional microphones. Spot-miking applications or overall stereo pickups using spaced pairs take on a new level of detail and precision not possible with other types. The small capsule size results in a nearly perfect omnidirectional pattern for accurate pickup of the whole acoustic environment.

Specifications of C617SET

Frequency Response
10 Hz – 20 kHz ±1 dB
Equivalent noise level
14 dB SPL, A-weighted
Sensitivity
66 mV/Pa (-24 dB ref 1V/Pa)
Maximum output level
+7dBV for <1% THD, 1kΩ load (127 dB SPL)
Output impedance
50Ω (minimum load impedance 1kΩ)
Power requirements
P48 phantom per IEC 61938, <5 mA
Temperature Range
-10 to +50°C
Dimensions
21mm dia, 176mm long (with capsule)
Weight
120g

Specifications of C617 body alone, for use with other capsules, as above except:

Frequency Response
10 Hz – 80 kHz ±1 dB
Equivalent noise level
<2.5μV A-weighted, <6.5μV CCIR quasi-peak
Gain
2.5 dB (balanced symmetrical direct coupled output)
Maximum output level
+7dBV for <1% THD, 1kΩ load
Output impedance
50Ω (minimum load impedance 1kΩ)
Capsule polarization
200V
Dimensions
21mm dia, 165mm long (with capsule)
Weight
110g

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Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.

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Sound Pure Studios Control Room A — Durham, NC

Sound Pure Studios · Durham, NC

Come hear it in our control rooms.

Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.

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