What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

Denon DL-A100

 New model of Stereo Cartridge. Denon DL-A100.
Special edition of stereo cartridge celebrating our 100th anniversary

A Parallel Evolution.
The production of Denon cartridges began in 1941 when Denon began to develop cartridges for use at broadcast stations. Since then, cartridges of superior quality have been produced alongside the evolution of the record, and in 1961 Denon jointly  produced the DL-103 with NHK, Japans national broadcaster, for use at FM stations. The DL-103 was able to play stereo LP records with high fidelity and reliability (providing easy handling and stability). Though the DL-103 was sold as a product for professional use, Hi-Fi audio enthusiasts felt such superior performance should not be limited to the realm of professionals, and in1970

Denon made the DL-103 available to the general market.
The basic design of this model continues to achieve first-rate performance and play an active part in todays world. The DL-A100 is an anniversary model that has been recreated to celebrate 100 years of an engineering sample that was a unique and closely held secret at the time the DL-103 was developed. The DL-A100 represents the standard model that has been in production for  a little less than a half centurynow reborn with the latest tuning for your enjoyment

The Signatures of Quality.
The DL-A100 features the 100th anniversary special case, and comes with a 5-year warranty and a signed certificate of authenticity from the chief production engineer who hand crafted the  product. Also included is a beautiful Denon brand book that  explores the history of one of the leading names in the audio-visual field. 
 High quality audio
Independent 2-ch Moving Coils
The DP-A100 employs independent 2-channel moving coil cartridges to facilitate playback over a wide frequency range from low- to high-level signals. Superior playback performance is also possible due to the flat frequency response and minimal left-right sensitivity (level) differences.
Fulcrum point of vibrating system that achieves stable tracking
The fulcrum point of the DP-A100s vibrating system is made of extremely fine piano wire, and the tip of the stylus tracks smoothly in the groove of the record.
Dual-structure cantilever
The DP-A100 uses a lightweight yet rigid dual-structure cantilever. Superior frequency response over the entire audible frequency range is achieved by minimizing the mechanical impedance of the vibrating system.
Long-lasting solid diamond stylus
Since the tip of the DP-A100’s stylus uses a solid diamond, stable characteristics with negligible friction are maintained for a long time. In fact, each diamond is individually fitted into the stylus so that the hardest section – where the diamond has crystallized touches the wall of the groove.
Cross-shaped iron core and coils, to minimize sensitivity differences between channels. Wrapping separate coils on the cross-shaped iron core has successfully minimized sensitivity differences between the left and right channels while reducing mass.
Characteristics chart packed with each product as a guarantee of superior performance Each individual DP-A100 has been carefully manufactured and packed with its own characteristics chart to guarantee superior performance.

Specifications DL-A100
PrincipleMoving coil (MC) type
Output Voltage0.3 mV  (1 kHz, 50 mm/s horizontal direction)
Channel Balance1 dB max. (1 kHz)
Channel Separation 25 dB min. (1 kHz)
Electrical Impedance40 ohms ±20 %
Compliance5 x 10⁶ m/N (Using a 100 Hz record)
Stylus0.2 mm square solid diamond
Tracking Force25 mN ±3 mN (2.5 g ±0.3 g)
Frequency Response20 Hz to 45 kHz
Weigh8.8 g
Load Impedance100 ohms min. (40 ohms when using a transformer)

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