Tannoy 635 (v UK označené ako D50) sú stojanové reproduktory osadené 8" dual koncentrickým meničom a bassreflexom na prednej strane.
Cena: 499,- GBP, 22000,-Sk (1996), 18 990,-CZK (1997)
Výroba: 1996-1998
Nástupca: Tannoy D300
Podľa dostupných informácii išlo o model z rady Profile, ktorý sa nachádzal nad radou Sixes a jeho nástupcom bol najmenší model z vysokej rady Definition - D300. V rade Profile pravdepodobne nahradil model 636, ktorý sa vyrábal od roku 1994. S odstupom času sú tieto reproduktory veľmi dobre hodnotené na rôznych fórach. Majitelia si ich nechávajú, v bazároch sa vyskytujú ojedinele.
Informácie z netu (v EN):
Key Factors are :
1. 8" Dual Concentric Driver - Point Source driver (Physically Time and Phase aligned HF and LF drive units). HF have a horn loading via waveguide (aka Tulip Waveguide by Tannoy). HF is metal dome with ferrow fluid, LF is polypropylene cone.
2. Good quality Trapezoidal Cabinet - Eliminate internal reflections
3. Front baffle with rounded edges - Get rid of driver - cabinet diffraction problems.
4. Extensive Crossover - First Order crossover with High quality components epoxied in the bottom of the cabinet eliminating vibrations from driver.
5. Front Ported - Easy to place these speakers in a small room closer to walls.
Sound :
The Tannoy D50 uses exactly the same driver used in Tannoy System 800/800A series Studio Monitors
They image like crazy and potray a huge soundstage. HF & LF integration is top notch even in near field (only DC's can do this).
Treble is smooth. Bass is neither shallow nor boomy, Its just right and taut. Midrange is very involving without any peaks or dips. D50's are really a musical loudspeaker which you can listen to hours without any fatigue. Do use spikes with them and sounds good with the grilles off.
Dual Concentric's are a reactive load so you need to partner them with a good quality amplifier, a high current minimum 50 Watts per channel though I will recommend 100W / ch.
There are absolutely no phase errors being a (time aligned) single driver. In a multiple driver loudspeakers there are lot of driver integration problems so the manufacturer have to use complex high slope crossover modules to align the drivers and to achieve smooth response, these complex circuits induce crossover distortion and eat up amplifier power.
Where as in Tannoy's Dual Concentric Speakers there is no need for this because both HF & LF drivers are time aligned and in phase physically to each other. So Tannoy's have shallow slopes first order and second order crossovers to just match the HF and LF drivers. 
Specification
Recommended Amplifier: 10 - 120 Watts
Peak Power Handling: 200 Watts
Frequency Response (+-3dB): 42Hz - 30kHz
Crossover Frequency: 400Hz
Sensitivity: 90dB
Nominal Impedance: 8 Ohms
Dimensions: 286 x 820 x 264mm (Width x Height x Depth)
Weight: 13.5kg
