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CineMag CMOB-1H Line Output Transformer

1:1 turns ratio, Bilfilar Windings, 80% Nickel Laminations, Wire Leads, Channel Frame Mount

Made in the USA
CineMag CMOB-1H  Lline Output Transformer

CineMag CMOB-1H Line Output Transforermer

The CineMag CMOB-1H output transformer has two sets of windings, which is known as bifilar construction.  This technique delivers excellent bandwidth, along with good coupling between the windings.  This version features 80% nickel ("HiNi") laminations, although 50% nickel / 50% steel laminations are also offered as CMOB-1L, which, at the time of this writing, is available as a special-order option in the cart below.

The CMOB-1H can be driven with source impedances up to 600 Ohms. The driving amplifier should be capable of delivering clean power at the desired maximum output level.

The channel frame is 2.33" (59.2 mm) wide, or 3.25" (86.6 mm) wide including the mounting flanges. 

Here are some key specs:

  • Excellent bandwidth: -1.82 dB at 200 kHz, Rs=150Ω
  • 80% Nickel (“HiNi”) or 50% Ni/50% Steel laminations
  • Distortion ≤0.01% typ at 20 Hz, Rs=150Ω HiNi
  • +27 dBm at 20 Hz, 1% THD+N Rs≤150Ω
  • Phase Shift -2E at 20 kHz, Rs=150Ω
  • Low insertion loss

With so many once-great American manufacturers selling their brand names and/or moving their manufacturing outside of the USA, we are particularly thankful that CineMag remains dedicated to designing and manufacturing some of the finest products in the world, right here in the USA, and it is an honor to represent their products. The CMOB-1H is made in the USA, and is backed by Cable Solutions' three-year warranty  Please ask for details.

About CineMag


To manufacture the very best audio magnetic components in the world!


The company story goes goes back to Edward Reichenbach in the 1940's, where his experience included the design of many audio transformers for Altec Lansing. Following that, Ed formed his own company, making audio transformers, inductors, and power transformers for use in professional audio gear. He eventually formed Reichenbach Engineering, where the transformers he designed became ubiquitous standards in the pro audio industry.  CineMag was formed as a part of Reichenbach Engineering in 1979, manage by Ed's son, Tom.  The CineMag name reflects the company's early focus upon magnetic tapes heads for cinema; "Cinema Magnetics" was concatenated to "CineMag".


In order to obtain the very best results in an audio design, attention to detail is imperative.  Even the slightest deviation from the ideal manufacturing process can result in product that does not meet our high standards. In order to ensure the very best-performing products for our customers, every device that we manufacture must pass a computerized test.  For this reason, all manufacturing is done in our own facility in Simi Valley California.

CineMag has distinguished itself as the leader in audio magnetics through dedication to excellence in manufacturing and service.  CineMag offers a broad range of audio transformers and inductors, and research and development is still ongoing.  Only by keeping all manufacturing in-house are we able to maintain the highest possible standards of quality.

CineMag CMOB-1h, top

CBOB-1H top perspective

CineMag CMOB-1H, back

CBOB-1H back view

CineMag CMOB-1H, included items

CBOB-1H back view

CineMag CMOB-1H, product box

CBOB-1H back view

CineMag CMOB-1 Specs - click to download PDF

Here is the CMOB-1 spec sheet.  PDF format.

Purchase Information
Product Description SKU MSRP Your Price Quantity
CineMag Line Output Transformer, 80% Nickel Laminations (stocking) CMOB-1H $191.99 $159.99
CineMag Line Output Transformer, 50% nickel / 50% steel laminations (special order) CMOB-1L $126.99 $126.99
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Why Cable Solutions?

American heritage, innovation and workmanship are intrinsic in the CineMag name.  Add Cable Solutions' customer-centric service and you get a superior experience.  Don't get stuck with incorrect advice, bad service, slow shipping or inferior products. If you want the best, you need look no further.