Alchris Audio TX5s Review: A Transmission Line Stand-Mount With a Ribbon Tweeter

Introduction

Some of the most interesting hi-fi comes from small makers who build in modest numbers and put the money where it counts. The Alchris Audio TX5s fit that description closely: a pair of stand-mount speakers retailing at £1,750, assembled with cabinets hand-built in a workshop in West Yorkshire and finished in one of four real wood veneers. Behind the front baffle sit a transmission line, a Fountek pure ribbon tweeter and a crossover assembled from premium parts.

That combination is unusual at this price. Ribbon tweeters and properly engineered transmission lines normally appear in speakers costing several times as much, which is exactly why the TX5s deserve a careful look.

Who this product is for

The TX5s suit listeners who want depth and clarity rather than sheer volume. They are built for rooms where the speakers can sit clear of the walls, with the tweeters close to ear height, and they reward an amplifier with a slightly warm tonal balance. Buyers who listen mostly at low to moderate levels will get the most from them, and anyone drawn to the idea of a transmission line will find the tuning here convincing.

They are also a friendly load for modest amplification. Rated at 90 dB sensitivity into an 8-ohm load, with an impedance that should stay fairly flat, the TX5s are easy to drive and stay dynamic and controlled even with inexpensive integrated amplifiers. They are not the right choice for someone who wants to run a system at high volume, and they ask for patience with positioning.

Main strengths

The cabinet work is where the money shows first. The mid-woofer’s back wave is channelled down a labyrinth and damped with British-made damping material and acoustic foam, with the line output tuned to 48 Hz. The slot in the front baffle, which looks aggressive but is entirely functional, controls airflow from the end of that line. No ferrous materials are used in the build because they introduce eddy currents and add distortion, and even the binding post washers are copper.

The crossover is equally serious. Wire-wound resistors come from Mundorf and Dayton Audio, while a Solen polypropylene capacitor handles the bass circuit for speed and smooth mids alongside a larger Jantzen air-core inductor in a 12 dB per octave second-order slope. The tweeter circuit uses Jantzen and Dayton Audio capacitors with another Jantzen air-core inductor in an 18 dB per octave third-order slope, plus a small white Bevenbi bypass capacitor for quick discharge.

The same thinking appears further up the market, where the £5,000 ATC SCM19 and the £6,395 Kerr Acoustic K300 Mark III pair a Fountek ribbon tweeter with transmission line bass loading. The Kerr adds a larger ribbon, a Scan-Speak Revelator mid-woofer and a Baltic birch plywood cabinet. The TX5s give up some dynamics and pinpoint imaging to those designs, but for less than a third of the Kerr’s price they come surprisingly close on bass quality and treble detail.

Bass depth and midrange clarity

Bass articulation is the standout quality. The transmission line delivers deep, clean low frequencies with very little bleed-through into the midrange, and the bass weight is well judged, sitting in balance with the rest of the range rather than drawing attention to itself. The midrange itself is close to faultless, particularly with male vocals, where tone, texture and separation come through clearly.

Soundstaging is wide, deep and nicely layered, and imaging holds up well against speakers costing considerably more. The crossover sits at 2,000 Hz and the quoted frequency response runs from 30 Hz at -3 dB in room up to 40,000 Hz.

Treble detail and soundstaging

The Fountek pure ribbon tweeter is normally reserved for much more expensive designs, and it shows. High frequencies are subtle, detailed and airy, giving nothing away to far pricier rivals, which is unsurprising given the quality of the crossover parts around it. This is the area where the TX5s most obviously outperform their price.

Things to consider before buying

The mid-woofer is the one component that does not match the rest of the design. It is a fairly standard 175 mm composite paper cone unit from Peerless with a modest magnet structure, chosen to keep the price down. It is not a bad driver, but the cabinet, tweeter and crossover are on another level, and that mismatch has audible consequences.

Power handling and listening levels

That driver runs out of headroom as levels rise. Above roughly 90 dB the sound becomes shouty, and clarity, composure and refinement all suffer. There is also a hint of a dip somewhere in the midrange, with brass instruments sounding a shade thin. These are minor points at ordinary listening levels, where the TX5s are at their best.

Rivals at similar prices make the trade-off clearer. The £1,999 Monitor Audio Studio 89 is similarly articulate but also compresses at higher volumes, with a leaner tone and less bass extension. The £1,800 Quad Revela 1 will play louder and offers a fuller, richer, more textured midrange, and it comes across as the more balanced speaker overall, though it cannot match the TX5s for bass depth, midrange purity or treble air.

Placement and system matching

Ribbon tweeters disperse widely to the sides but very narrowly in the vertical plane, so the TX5s are more demanding of setup than a typical dome or cone design. Keep the tweeters close to ear height, pull the speakers away from wall boundaries to keep the bass tight, and be prepared to adjust the distance between them, which noticeably changes the thickness of the lower midrange. Toe-in matters too. If a room does not allow that kind of experimentation, a design with more even off-axis behaviour will be easier to live with.

Amplifier matching follows a similar logic. Warmer amplification suits these speakers best, since a neutral, dry-sounding amplifier can make them sound tonally lean and dynamically flat, as if the mid-woofer were over-damped. Valve amplifiers respond well, with a softer leading edge to notes and a richer harmonic character. A £349 integrated with a modest power supply drove them reasonably well, and a £799 model makes a sensible starting point for a system that does not break the bank.

Buying advice

At £1,750 a pair, the TX5s sit in a busy part of the market, with strong alternatives at £1,800 and £1,999 and far more ambitious designs at £5,000 and £6,395. What the TX5s offer is a rare combination at the price: genuine transmission line bass, a ribbon tweeter and a carefully specified crossover, all in a hand-built cabinet available in four real wood veneers.

Buy them if your listening is mostly at low to moderate levels, your room allows some freedom with placement, and you want bass depth and treble detail that usually cost far more. Look elsewhere if high-volume playback is a priority, or if you would rather not spend time fine-tuning speaker position. A little crossover work and a mid-woofer of comparable quality to the rest of the parts would make these speakers even more compelling, and that is the upgrade worth hoping for.

Conclusion

The Alchris Audio TX5s deliver far more engineering than their price suggests, and in the areas that matter most at moderate volumes they are genuinely competitive with much more expensive speakers. The modest mid-woofer limits how hard they can be pushed, which is the one clear compromise. For the right listener in the right room, they are an easy recommendation.