February 08, 2018

Posted in Normalling-your-patchbay, Patchbay


Non Normal (Isolated) Patchbays - Normalling patchbays

A non-normal, isolated grounds patchbay configuration is often used for a completely configurable patchbay setup. This layout involves absolutely no connection between patch points, which ensures that differently grounded equipment share no connection or ground. A non-normal setup allows the engineer to connect external gear to their signal-chain at any time, and in any order of their recording or mixing process. This configuration is often used for effect processors' sends and returns.




February 02, 2018

Posted in Half-normal

Half-normal patchbay configuration - Half normalling

A half-normal patchbay configuration is commonly used with analog line level signals. The signal from the source device, at the top jack, flows through to the jack directly below, to a destination device, via the “half-normal” signal route. This type of normaling differs from a full-normal in that the signal switches off, breaking the normal when patching into the bottom jack only.

This configuration also allows the engineer to create a second signal route, while maintaining the half-normal signal route - In effect, a Y cable. An identical signal is created when patching into the top jack, thus not breaking the normal. The top jack can also be used as a monitor jack, allowing quick checks of signal without breaking the normal.  

Breaking the normal by inserting a patchcord into the bottom jack creates no connection between the vertical pairs of jacks. This “broken normal” state is maintained as long as there is a patchcord in the bottom jack. The signal can then be re-routed, as required, in the signal chain. 



January 08, 2018

Posted in press release

Bittree Debuts High-Quality 16-Channel Audio Pass-Through Panel at 2018 NAMM Show

Bittree is kicking off its 40th anniversary year by continuing its rapid pace of new product introductions as it prepares for the 2018 NAMM Show. Showcasing its industry-leading audio patching solutions in booth 10614, the award-winning company will use its first-ever NAMM exhibit presence as the launch pad for its new ProStudio 1625QX audio pass-through panel.

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Full Normal Patchbay - Normalling patchbay

Full Normal Patchbays - Normalling patchbays

A fully-normalled patchbay configuration is used to create a connection between two devices while leaving a point of entry for interception from another device.

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Bittree Expands ProStudio Family of Pro Audio and Musical Instrument Patchbays with New Front-Programmable PS9625F

Bittree Expands ProStudio Family of Pro Audio and Musical Instrument Patchbays with New Front-Programmable PS9625F

2x48 rackmount TT model with DB-25 rear interfaces delivers professional sound quality and durability at affordable, prosumer-like pricing

Glendale, CA – November 8, 2017 – Bittree – a leading manufacturer of high-quality audio, video and data patching systems – today announced the second product in its new ProStudio series of premium-quality yet affordable audio patchbays. Complementing the recently-introduced ProStudio 4825F compact desktop model, the front-programmable ProStudio 9625F combines robust durability with superior sound quality in a 96-jack rackmount configuration. The PS9625F will make its exhibition debut at the 2018 NAMM Show (January 25-28, 2018 in Anaheim, California), where Bittree will exhibit in booth 10614. 

Enabling users to easily define and modify their audio signal flows, Bittree’s ProStudio family brings the company’s renowned patchbay quality and reliability to price points accessible to everyone from hobbyist musicians to top-tier studio engineers. The PS9625F ($1125.00 MSRP) delivers all of these benefits in a 1.5RU rackmount form factor with 96 TT (bantam) connectors in a high-density 2x48 configuration, with 12 DB-25 rear connectors for interfacing with Avid® ProTools® and Tascam® gear. 

“We’ve received overwhelmingly positive response to the first model in our ProStudio series, the PS4825F, and we’re excited to introduce its ‘big brother’ for customers with larger-scale setups,” said Ari Baron, general manager at Bittree. “With the ProStudio family, people wanting to make professional-sounding music no longer need to sacrifice audio quality for affordability. The PS9625F is ideal for users who want the cleanest signal path possible, and delivers that quality in a heavy-duty design that’s built for reliability and longevity in demanding environments.”

The PS9625F features a sturdy metal front panel and durable full-frame jacks with gold cross-bar switching contacts, delivering superior durability, higher electrical current rates and lower noise than lower-end alternatives. Similarly, internal digital AES wiring ensures higher-quality audio than the flat cable typical in low-cost offerings.

Professional-grade, front-accessible shunts enable easy reconfiguration of circuit normalling, grounding and bussing, and are protected from dust, electrical interference and other elements by the PS9625F’s two removable stainless steel designation strips. The extra-large designation strips offer space for up to three lines of print for easy labelling, and combine with silk-screened numbering on the front panel to enable quick circuit identification. The fully-enclosed 1.5RU chassis measures seven inches deep, and despite its robustness weighs in at just 8.5 pounds.

The ProStudio 9625F is available immediately through dealers including Sweetwater, Guitar Center, Vintage King, Westlake Pro, Dale Pro Audio, Pro Audio LA and many more authorized resellers worldwide. For more information, please visit PS9625FProStudio Patchbay - PS9625F Patchbay

October 19, 2017

Posted in patchbays, press release

Bittree Patchbays to Celebrate 40 Years of Audio Infrastructure Leadership with NAMM Show Debut

Bittree to Celebrate 40 Years of Audio Infrastructure Leadership with NAMM Show Debut

Bittree Patchbays

Acclaimed manufacturer of innovative patching solutions bringing deep music industry experience and cost-effective new solutions to booth 10614

Glendale, CA – October 18, 2017 – Bittree will celebrate 40 years of designing and manufacturing high-quality, industry-leading patching solutions for the broadcast, professional audio/video and musical instrument markets in 2018. The company will kick off its 40th anniversary festivities by exhibiting for the first time at the annual National Association of Music Merchants (NAMM) Show, taking place January 25-28, 2018 in Anaheim, California. Bittree will exhibit in booth 10614.

Rich Music Industry History

While new to exhibiting at NAMM, Bittree has a long and illustrious history in the music industry even beyond the company’s 40 years in business, starting with the rich pedigree of founder and CEO Glenn Garrard. Following his initial service time in the National Guard and early jobs in computers and telecommunications, Garrard entered the music business in 1968, building and maintaining speakers, tape machines and studios for Motown Records in Detroit. Garrard moved to Hollywood in 1971, working for Motown founder Berry Gordy Jr. when the company relocated to Los Angeles in 1972. 

Garrard then worked at Merv Griffin’s Trans-American Video television studios starting in 1974, a role that provided his first hands-on experience with video signals. The tedious processes and challenges that Garrard faced in working with audio and video distribution equipment – hand-soldering dozens of connections into inflexible, hard-wired architectures – inspired him to develop better solutions. 

Garrard established Bittree in 1978, with an initial fixed, pre-wired patchbay design followed by a connectorized, chassis-based patching system. Today, the world’s leading studios, broadcasters, entertainment venues and A/V integrators count on Bittree for audio, video and data patching systems that consistently deliver superior product quality, performance, and precise adherence to exacting standards. 

New at NAMM 

The centerpiece of Bittree's inaugural NAMM Show exhibit will be the company's new ProStudio series of audio patchbays. Addressing a void in the market for reliable, professional-quality patchbays at affordable pricing, the ProStudio line makes Bittree’s renowned quality and engineering excellence accessible to everyone from hobbyist musicians to top-tier studio engineers.


The first offering in the ProStudio family, the front-programmable ProStudio 4825F, is the first patchbay designed specifically for pairing with transportable 500 Series modular chassis. Fitting perfectly on 500 Series racks or under computer monitors in fixed or temporary installations, the sturdy PS4825F ($625.00 MSRP) offers 48 TT (bantam) connectors in a 2x24 configuration, with DB25 rear connectors for interfacing with Avid® ProTools® and Tascam® gear.

Bittree will also use the 2018 NAMM Show as the launch pad for additional ProStudio products, including 96-connector, front-programmable and internally-selectable rackmount configurations. Details of these upcoming introductions will be revealed closer to the event. 

“Thriving as an independent company through 40 years in a technology business is a remarkable feat, and Bittree has helped our customers navigate through many key infrastructure and format transitions in the media and entertainment industry,” said Garrard. “The 2018 NAMM Show is a perfect backdrop for celebrating this success with our customers, and we’re excited to bring the advantages of the new ProStudio line to NAMM attendees for the first time.” 

For more information about Bittree and the ProStudio series, please visit

About Bittree:
Established in 1978, Bittree is dedicated to offering state-of-the-art patchbays and patch panels that streamline signal routing and troubleshooting in media and entertainment operations of all sizes. The company offers an innovative line of audio, video, and data patchbays for use in broadcasting, postproduction, and pro A/V operations. Tailored for use in the post-production, pro A/V, systems integration, and radio and television broadcasting fields, Bittree’s patching solutions are rigorously tested to ensure long-term functionality and dependability, especially for mission-critical operations and live events. To ensure consistency, performance, and adherence to rigid quality standards, all of the company’s patching products are designed, assembled, and tested in its state-of-the-art facility in Glendale, California. Bittree is an active member of industry trade organizations NAB (National Association of Broadcasters), NAMM (National Association of Music Merchants), and SMPTE (Society of Motion Picture & Television Engineers). For more information, please visit 

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October 18, 2017

Posted in review


mai 25, 2017 Écrit par oudini Soyez le premier à commenter!

Bittree, un important fabricant de systèmes audio/ vidéo, vient de dévoiler sa toute nouvelle série de patchs audio ProStudio, qui selon lui, visent à offrir la qualité et la robustesse des produits de l'entreprise à tous, du simple musicien amateur jusqu'à l'ingénieur de studio. La première référence de cette nouvelle gamme a été baptisée ProStudio 4825F et est à ce jour, le tout premier patchbay conçu spécifiquement pour être associé avec des châssis modulaires transportables de la série 500 tels que les lunchbox API, Rupert Neve Designs R6 ou encore Radial Six-Pack. Le prix reste un peu élevé (625$), mais le format 500 rencontrant un tel succès, gageons que d'autres fabricants devraient s'engouffrer dans la brèche et proposer des modèles plus abordables. Plus de détails ICI.

Sortie prévue:jeudi, 25 mai 2017
Type:Format 500

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