TDL Reference Standard (Super scarce Vintage)
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TDL Reference Standard (Super scarce Vintage)

Original price was: R120,000.00.Current price is: R38,000.00.

TDL Electronics Reference Standard

Specifications

Type: 4 way, 7 driver loudspeaker system

Frequency Response: 16Hz to 35kHz

Recommended Amplifier: 50W (minimum)

Crossover Frequency: 200, 3500, 13000Hz

Impedance: 8Ω

Sensitivity: 87dB

Bass: 2 x biradial 300 x 210mm

Midrange: 2 x 150mm doped polymer cone

Tweeter: 2 x 25mm magnesium alloy dome

Super Tweeter: 1 x 20mm dome

Enclosure: dual transmission line

Finish: walnut, black

Dimensions: 558 x 496 x 1180mm

Weight: 70kg

Price: GBP £3450 (1992)

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Description

A “TDL reference standard” refers to the TDL Reference Standard Loudspeaker, a high-fidelity, four-way, transmission line speaker system renowned for its deep bass and excellent overall sound quality, designed by TDL Electronics. These large, heavy, and complex speakers, featuring multiple drivers including a super tweeter, mid-bass units, and woofers, were considered a benchmark in high-end audio.  

Key Characteristics
  • Transmission Line Design: 
    The “transmission line” in the name refers to the unique cabinet design that uses a long, folded internal channel to extend the bass response of the drivers, providing deep and articulate bass. 

  • Multi-Driver System: 
    It is a four-way system, incorporating a specific configuration of drivers, including:

    • A super tweeter for high frequencies. 
    • Two tweeters. 
    • Two mid-base drivers. 
    • Two woofers. 
  • High Fidelity and Clarity: 
    These speakers are known for their detail, clarity, and consistent off-axis response, contributing to the “Reference Standard” name. 

  • High Quality Components: 
    The internal components, such as the crossover, mid-range, tweeter, and super tweeter circuits, are designed to high standards, with upgrades often involving replacing capacitors and inductors to improve performance, according to a YouTube video. 

  • Professional Endorsement: 
    They were widely recognized by audio professionals and enthusiasts, with a mention on a Facebook post calling them “some of the best reference series speakers and cabinets ever made,” notes a post from Super Audio Mastering. 

Technical Details
  • Frequency Response: The TDL Reference Standard is designed to have a wide and accurate frequency response, with one source citing a range of ±3 dB from 35 Hz to 20 kHz and ±4 dB from 20 Hz to 35 kHz, according to a YouTube video. 
  • Impedance and Sensitivity: They typically have an impedance of 8Ω and a sensitivity of 87 dB. 
  • Enclosure: The dual transmission line enclosure is a substantial part of the speaker, with each cabinet weighing 70kg, according to a YouTube video. 
In summary, the TDL Reference Standard is a premium, high-performance loudspeaker that represented the pinnacle of TDL’s engineering in transmission line loudspeaker technology.  

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