Thursday, May 5, 2011

LaChapell Audio Model 583e - 500 series Tube Preamp with 3 Band EQ section



The Model 583e from LaChapell Audio is a transformer isolated tube preamp with a 3 band equalizer that can be used jointly or independently. The amplifier stage is the same as the 583S (which is the first 500 series tube pre) including the Jensen JT-115k input transformer coupled with an ultra-clean transformer-less three-band EQ section with fully sweeping frequency controls and cut/boost settings of +/- 8dB.


583e Features




  • Ultra-clear and phase-coherent transformerless 3-band EQ 



  • 12AX7 tube preamplifier with Jensen JT-115k transformer-based input stage



  • EQ input resistance: 40 Kohms



  • EQ output resistance: 50 Kohms



  • EQ bands: Low: 30Hz-400Hz; Mid: 325Hz-5kHz; High: 2.5kHz-20kHz



  • EQ cut/boost: +/-8dB



  • EQ max input: +24dBu



  • EQ max output: +26dBu



  • EQ self-noise: -93dB



  • EQ THD+N: 0.012% (with +8dBu input signal)



  • Preamp gain range 0dB-70dB



  • Preamp THD+N (gain @50dB, 0dBu output): < 0.25



  • Preamp frequency response (-3dB, output favored): 12Hz-70kHz



  • Preamp input impedance (mic) 1.5 Kohms, (hi-Z) 40 Kohms



  • Preamp tube: 1 x 12AX7



  • Total weight: 3.5 lbs.




  • $1690 at Sweetwater Sound

    UAD Software v5.9 Now Available -Featuring the lexicon 224 Reverb and Updates for the UAD-2 Satellites


    UAD v5.9


    It's here! UAD Software v5.9 has arrived, featuring the legendary sound of the Lexicon 224 Digital Reverb, plus enhanced features for the UAD-2 Satellite, including support for the Avid/Digidesign 002 and 003, lowered latency, and more.
    In celebration of this latest UAD Software release, we've put together a special Introductory Offer (see sidebar).

    New v5.9 Software Features:

    New Lexicon® 224 Digital Reverb Plug-In for UAD-2
    • Lexicon-endorsed model of legendary 1978 hardware, using the very same algorithms from the original
    • Models the entire analog circuit and digital path for total authenticity
    • 8 reverb programs and one chorus program from final Lexicon v.4.4 firmware
    • Features Artist Presets from famous Lexicon 224 users
    New Features for the UAD-2 Satellite Firewire DSP Accelerator
    1. Support for Avid/Digidesign 002 and 003 interfaces
    2. Support for up to two UAD-2 Satellites on qualified Intel-based iMac®, MacBook Pro® or Mac mini® computers
    3. Reduced latency for improved workflow
    4. Additional enhancements for optimized performance


    Tonescape's Free Samplepack with 1000 sounds


    A producer/engineer who goes by the name Tonescape was kind enough to make this free samplepack containing over 1000 samples and loops in wav and rex format.

    Check out his site and download here:
    http://www.tonescape.de/?page_id=173

    Wednesday, May 4, 2011

    Lynx Hilo AD/DA Converter & Headphone Amp with Touch Screen


    From their Press Release:
    "The new Hilo Reference A/D D/A Converter System reengineers and redefines the concept and functionality of the two-channel converter. Essentially three units in one: A/D converter; D/A converter; and headphone amplifier, Hilo offers connectivity, performance and control never before available. Newly designed differential analog stages and bilinear converter topology provide industry-leading noise and distortion specifications and unprecedented transparency. Digital I/O is extremely versatile with support for AES/EBU, S/PDIF (via coax or optical) or ADAT. The Lynx LT-USB is standard, allowing additional USB I/O and computer connectivity.

    Hilo is also the first professional converter with touchscreen operation and monitoring. All controls and signal routing is set up using easy to use menus. The setup page shows two stereo input meters and three stereo output meters. Optional screens show two selectable meter sets and even old-style analog VU meters. Future screens (updatable in the FPGA via download) will include further metering options, diagnostic operations and personalization.

    The internal 32 channel mixer allows any input to be routed to any output. In fact there are three stereo analog output options. Line Out that supports eight standard trim settings, Monitor Out with a volume control, and a Headphone output, also with a volume control. In fact the headphone output has its own dedicated D/A converter with the option of a different mix than the Line and Monitor outputs."

    MSRP $2495.
    Get more info at Hilo Reference A/D D/A Converter System
    Check out this video at 1:34
    Lynx Studio Hilo Intro



    Past meets Present- JCF Audio DA8-V D/A Converter and Ampex 351



    JCF Audio's DA8-V sounds like the best of both worlds. The ultimate Digital/Analog hybrid.

    The DA8-V 
    is 
    an 
    8 channel 
    D/A 
    converter 
    that 
    utilizes 
    tube line stage that was inspired by the Ampex 351 reproduce circuitry. 
    The Ampex 350 tape machines were considered the Holy Grail of tape recorders back in the 50's and 60's.

    Here's two pics of the 351 used on Elvis Presley:







    JCF's DA8-V uses the industry standard AES/EBU protocol on a DB25 connector with an additional DB25 "thru" connector. 
    The AES/EBU DB25’s follow the 
    “tascam” pinout and operates in single-wire mode at all sample rates
    . The DA8-V derives its sync source from the incoming AES/EBU stream and
     has two analog outputs. Each coming from two separate, floating sources (with factory 
    configuration). This comes in handy when the outputs of the DA8-V must be connected 
    to multiple devices.
    Features:
    • Ampex 351 inspired output stage
    • Simple self-clocking operation @ all frequencies
    • 1 additional courtesy turn-around DB25 AES port
    • ~20dB front panel calibration range control
    • Sensible output stage current for good performance and long tube life
    • Cinemag CM9600-T output transformer
    • Uses common tubes 12AX7, 12AU7
    • Ships with 5′ standard AES crossover cable
    • 1 year limited warranty

    Specifications:





    Number of Channels8
    Digital Input110 Ohm transformer coupled AES/EBU compatible Single-Wire Operation Only
    Output Impedence< 40hms
    Minimum Recommended Load600 Ohms or greater
    Maximum Output Level+32dBu rms
    Distortion<.01% @ +4dBu, 0.025 % @ +28dBu
    Noise-70dBu (BW lim 80kHz)
    Power Supplies2 external (1 analog, 1 digital) ~100W idle cons.
    Tube Compliment



    8 x 12AX7 – 8 x 12AU7 – 1 x 5R4


    $6750 at Mercenary Audio

    Tuesday, May 3, 2011

    Nevaton MC48 Large-Diaphragm Stereo Condenser Microphone






    The MC48 seems like it would make a great addition to anyone's mic collection.
    I plan on obtaining one of these soon and doing a full review on it.

    From their product catalog:
    "The Nevaton MC48 is a large dual-diaphragm stereo condenser microphone with transformerless Class 'A' electronics. It produces an incredible spatial representation and can be used as a main microphone for recording orchestras, chamber ensembles, or pop concerts. It is great for guitar and drums as well as ambient field recordings. It is also well suited for applications in radio and television broadcasting as well as for live concerts and studio sound production. The microphone has an excellent transient response, very low self-noise of 12dBA, and sound pressure level of 135dB. The two large 25mm diaphragms, placed one above the other, can be simultaneously rotated to provide variable stereo width from 50° up to a maximum of 140° and are capable of advanced, adjustable cardioid functions in mono mode. The ultra-thin and gold-coated diaphragms are made of 3-micron polyethylene-terephtalate film and give the MC48 the brilliant and transparent sound it is famous for. All capsule components have passed a special artificial aging process to guarantee long-term stability.The internal construction is elastically mounted to attenuate vibrations and reduce handling noise. Additionally, the capsules are fixed on special dampers to further reduce mechanical noise."

    NEVATON MC 48 - Technical Data
    Capsula diameter
    25 mm
    Directional pattern
    Stereo: 2x cardoid
    Frequency-range
    20 - 20.000 Hz
    Free Field Sensitivity at 1000 Hz and 1000 Ω
    12+/-2 mV/Pa
    Equivalent SPL DIN/IEC 651
    12 dB-A
    Max. Sound Pressure Level [for THD 0,5% ]
    135 dB
    Dynamic range
    123 dB
    Nominal Impedance
    50 Ω
    Recommended Load Impedance
    1000 Ω
    Current Consumption
    8 mA
    Supply voltage
    48 +/- 4V
    Diameter
    head: 50mm, body: 30mm
    Length
    249 mm
    Weight
    500 g
    Relative humidity
    90% (at + 20°C)
    Connector Type
    5-pin XLR-type (male) to 2x 3-pin XLR-type standard
    Pin assignment:
    pin1: ground, pin2:phase(+), pin3:phase(-), pin4:phase(+), pin5:phase(-)


    Visit Nevaton for more info. $1795 at Audio Vengeance



    HAPPY BIRTHDAY JAMES BROWN

    One of the greatest of our time.









    http://en.wikipedia.org/wiki/James_Brown

    New Quad-Core iMacs are here.

    With more power, improved graphics, Facetime camera and Thunderbolt ports.
    http://www.apple.com/imac/

    My Visit To A Personal Studio with an MCI Console.

    Last weekend I visited my good friend Karl at his personal studio. Karl is an electronics whiz, avid guitarist. gear head and purveyor of good sonics. 
    The centerpiece of Karl's studio is a Sony MCI JH500 console. The original MCI 500b was the first console I ever worked on so I was thrilled to see and touch one again. The last time I worked on an MCI was back in 1991. The reason for my visit was social but as usually happens when two gear heads get together we started talking shop and experimenting with the board and different gear. We also tried out different digital clock scenarios with his Protools HD rig. 
    This particular MCI console was refurbished by Karl himself and sounded great. He even had multiple master sections from different consoles that each had their own texture. Unlike digital gear no two analog gear sounds identical even when it's the same model and manufacturer. The differences are subtle but they are present nonetheless. I'm particularly fond of the Mix Boost feature on the master section of the JH500. This not only adds gain but a nice texture and sonic "glue" to the sound coming from the console. Here are some pics of the MCI.






    Another piece of gear  that was also the first I ever used when I started engineering years ago is the Orban Parametric Equalizer 622b. 

    The Orban and the MCI's onboard eq was my equalizing "boot camp" so to speak. Then once I "passed basic training" I was introduced to Neve, API, Pultec, Focusrite and the SSL.

    Also present was some of the first compressors I ever used; the DBX 160 VU and DBX 165. The 161 is identical to the 160 except it's unbalanced, Karl modified his to be balanced and added TRS connectors. The 165 is identical to the 165A minus the Peak Stop Feature. (See pic).


    Here's a pic of Karl's prototype compressor that he built himself.


    It sounded great on the stereo buss of the MCI. It's a work in progress and works well on a variety of sounds even when pushed hard.
    He recently acquired a pair of Siemens Mic Preamps while on a business trip overseas. The Siemens UA preamps were originally made in Austria during the late '60's/early 70's. Here's a pic of one of the units.


    He is currently building a rack for the Siemens but was able to connect them temporarily for a quick listening test. The Siemens have a nice color with a big, warm sound and lots of presence. There are 3 selectable impedances (180,600 and 1900 ohms) and 30-60 or 40-70 db of gain depending on the input used. Look forward to using them on an actual project.

    Last but not least we compared the clocks between a Black Lion Audio Micro Clock, a Crane Song HEDD 192 and an Apogee Rosetta. After a few minutes of taking turns doing a hurried blind test we decided that the Crane Song sounded the best with the BLA Micro Clock a very close second.We used the stock converters of the Protools 192 i/o to do the comparison. We plan to do a more extensive test in the near future. 




    Get more info on the BLA Micro Clock at Black Lion Audio 


    Monday, May 2, 2011

    Forssell Technologies - SMP-2 Two Channel Mic Preamp



    "The SMP-2 is an extremely high-quality, sonically neutral two-channel microphone preamplifier designed for the most demanding applications."

    "The SMP-2 microphone preamplifier is housed in a 1U rack mount chassis. It is a two channel mic preamp with individual controls for each channel.
    Front panel controls include: 
    Mute switch (mutes output), polarity reverse switch (relay), phantom power, 24 position rotary gain switch, and dual color LED signal level indicator (green @ -5 dBu, Red @ +22 dBu).
    There are two inputs per channel. One has +48 volt phantom power supplied to it (when phantom power is switched on) and its signal passes through very high quality capacitors to block the phantom power DC voltage from the input stage of the preamplifier. The other input is connected directly to the input of the preamplifier, bypassing the phantom power blocking capacitors. You can use this “direct coupled” input when you are using a microphone that does not require phantom power, such as vacuum tube mics, ribbon mics, and dynamic mics. You can only use one of these inputs at a time. Do not connect anything to the unused input. Input and Output connectors are XLR-3 wired pin #2 hot.
    The front panel mounted bicolor LED will light green when an output signal level of –5 dBu or greater is present, and this LED will turn red when the output signal level reaches +22 dBu. This is approximately 3-4 dB before output clipping on the 2 channel preamp."

    $1995 direct from Forsell Technologies



    AEA KU4 Unidirectional Ribbon Microphone




    The KU4 is AEA's interpretation of the legendary RCA KU3A, which is now a collector's item and regarded as one of the best ribbon mics ever. (The KU3A was originally made by RCA for the movie studios and less than 600 were made. It is known to have a very wide smooth response). The supercardiod pattern of the KU4 helps to reduce room reflections and the lack of proximity induced bass boost makes it a perfect choice for close miking.


    FEATURES:

    • Supercardioid pattern for excellent rear rejection

    • Reduced proximity effect

    • Smooth, high-bandwidth frequency response

    • Authentic New Old Stock RCA ribbon material

    • High-quality anodized & nickel-plated finish

    • Custom AEA transformer, neodymium magnets

    • Consistent Quality

    • Field-tech replaceable ribbon assembly

    • Hand-crafted in Pasadena, California



    SPECIFICATIONS:

    Operating Principle: Velocity microphone
    •  Frequency Response: Below 30 Hz to above 20 kHz 
    •  Maximum SPL: 140 + dB SPL above 200Hz for 1% third harmonic 
    •  Output Sensitivity: 2.8 mV/Pa into unloaded circuit 
    •  Output Impedance: 300 Ω nominal 
    •  Recommended Load: 1.2 KΩ or greater 
    •  Phantom power: Not required or recommended 
    •  Polarity: Pin 2 high for positive pressure at the front of the microphone. 
    •  Connector: XLR-3M wired to a 1.5 meter captive cable 

    Off Axis Response:
    •  Polar Pattern: Supercardioid 
    •  Relative Output at 180° (dB): -12 
    •  Angle of Maximum Rejection: 135° 

    Transducer element
    •  Ribbon Thickness: 1.8 microns ( .0000018 meter ) of pure aluminum 
    •  Ribbon Width: 0.082” (2.1 mm) 
    •  Ribbon Length: 1.25” (28.6 mm) 

    Accessories:
    •  Included: Custom storage/shipping case, stand adapter, manual and attached 1.5 meter microphone cable