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TDL Electronics RTL 2

Reflex Transmission Line Loudspeaker

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TDL Electronics RTL 2


The TDL RTL 2 are floor standing 'reflex transmission line' speakers, each having no greater footprint than a bookshelf speaker on it's stand.

The bass extension possesses that sense of ease and authority that only larger loudspeakers can convey.

Easily matching most amplifiers, the RTL 2 make an obvious choice for those serious listeners wishing to enhance their enjoyment of recorded music by acquiring a speaker capable of reproducing the full dynamic and frequency range of modern program material.


Type: 2 way, 2 driver loudspeaker system

Frequency Response: 40Hz to 20kHz

Recommended Amplifier: 20 to 80W

Crossover Frequency: 3000Hz

Impedance: 8Ω

Sensitivity: 87dB

Bass: 1 x 172mm loaded polypropylene cone

Tweeter: 1 x 19mm soft dome

Enclosure: reflex transmission line

Finish: black ash, rosewood

Dimensions: 730 x 200 x 220mm

Weight: 24kg

Price: GBP £250 (1993)


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Reviewed Apr 25th, 2018 by

I bought a pair of these a few months ago too replace a pair of Tannoy M3's in my man cave, mainly because they were dirt cheap and I wanted a little more bass at low volumes. When I initially connected them I was using an Audiolab 8000Q pre-amp and an 8000P power-amp, bi-wired with Linn LK20.

The magnitude of the improvement over the M3's where I expected it was amazing, genuine bass but without flab or excess. I was mightily pleased, so much so that I gave into temptation using the money I had saved buying second hand speakers instead of new, and invested in a pair of 8000M's to run the LF either side while the old 8000P drives the HF both sides.

These speakers just love the new arrangement and I have found I can drive them to decent levels for hours on end without the crossovers heating up, an apparent weakness with the RTL2/3 models.

Plus points? there are so many. Using them with the above amps in a room 4.50m x 3.75m the treble is sweet and refined, crystal clear and eloquent.
The mid's blend beautifully with the HF and there is a smooth transition to what is really quite remarkable bass for a box this size.

I have a pair of the genuinely awesome Tannoy DC3000's in my living room driven by the same amp's, while the TDL's cannot match their appetite for sheer sonic destruction they do give them a good run for the money as regards their sound quality. For a speaker that was less than half the price of the Tannoy's when new that is no mean feat.

TDL specified 80wpc power handling, I would look at 80w as being the minimum you should be using, don't use them with a cheap amp that cannot deliver real current on demand unless you are only going to run it ticking over, that or melt the crossovers.

On the downside while the grills are reassuringly heavy and solid the cabinet finish is pretty poor, wood from the vinyl tree non too expertly applied. The sides are also pretty resonant if you rap the top half of the panels with your knuckles.

I like these speakers so much that I intend to solve both those little problems by gluing 10mm veneered plywood panels on either side, the top and the rear, they sound excellent with the grills in place and with the real wood finish will finally look as good as they sound, hopefully even better.

Check the binding post area before you buy a pair and look for distortion in the plastic, if the speaker has been abused you will probably see evidence of it having become rather warm. If the panel is as it should be, haggle and buy, I don't think you will regret it, I certainly don't.

9/10, dropped a point because of the resonant top half and the finish, fantastic speaker ideally suited to some fun DIY upgrading.



This website is not affiliated with or sponsored by TDL Electronics. To purchase RTL 2 spares or accessories, please contact the company via their website or visit an authorised retailer.