The Victor-Victrola Page 
Design Details: External Horn Models
A few details on some of the design features of Victor phonographs. Each sequential page covers one aspect of the evolving designs.
External Horn Models:
Soundboxes:
Important Note: Soundboxes were sold in either nickel plate or gold finishes. It was common for customers to purchase later version soundboxes for use on older model phonographs, as the later designs had improved sound reproduction. This "updating" of soundboxes was encouraged by Victor dealers as well. Consequently, it is common to find an early Victor with a later-vintage soundbox installed.
Concert. The earliest Victor phonographs used a soundbox called the "New Century". However, these were used on a limited number of the earliest production machines, and are not often found today. The most common soundbox found on early Victor's is the "Concert" model. These soundboxes, and the updated "New Concert" models were used on machines up until around 1910, when the "Exhibition" model was introduced. Concert soundboxes can be readily spotted by the long neck at the opening.
Exhibition. Around 1910, Victor introduced the "Exhibition" soundbox, which was a vast improvement in sound reproduction from the earlier "Concert" model. This was the standard soundbox on Victors for many years, being replaced by the "No. 2" model around 1920 (example shown in gold finish).
No. 2 The No. 2 Soundbox was introduced on the internal horn Victrolas in 1917. This feature was adopted on the very final Victors around 1919. This model produces a greater overall volume than the earlier soundboxes. Only the last Victor (external horn) production models came equipped with this latest technology; however, many owners upgraded their older Exhibition soundboxes by purchasing and installing a No. 2 soundbox (example shown in nickel finish).
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