Conversion Kit: 1TD-X or 1TD to Veritas One

The details

About the Conversion Kit: 1TD-X or 1TD to Veritas One

Trade-in Program Available

Send back your original tweeters and crossovers from your 1TD/1TD-X to receive a 30% rebate on the retail value of the tweeters and crossovers.

New CSS Reference Kit

Criton 1TD-X to Veritas One Conversion Kit

Reference-level detail, premium components, and a complete DIY build experience built around a true beryllium tweeter.

Beryllium tweeterClean, refined top-end detail without harshness.

Superior Crossover IncludedNo “upgrade later” crossover path required.

SmartNode Boards IncludedCleaner, easier, more repeatable assembly.

Designed In-HouseDrivers, cabinet, and crossover engineered as one complete system.

Complete Conversion KitTweeters, crossover parts, new wiring, new hardware, crossover boards, 3D printed adapter, and 3D pringed jig included.

Premium PartsSuperior crossover parts come by default with the Veritas One.

DIY ConfidenceSmartNode boards and optional flat packs remove the guesswork.

A compact speaker kit with true high-end intent.

This kit was designed with a simple goal: deliver true high-end loudspeaker performance in a format that is approachable, repeatable, and genuinely rewarding to build.

At the center of the design is a beryllium tweeter, chosen for its exceptional stiffness-to-mass ratio and its ability to deliver extremely low distortion, high resolution, and clean detail without becoming harsh or fatiguing.

The Veritas LD25B-06 is paired with our stellar LDW7 midwoofer and a fully engineered crossover to create a speaker that is balanced, dynamic, and easy to enjoy for long listening sessions.

The Veritas LD25B-06 beryllium tweeter is the heart of the design.

Designed as a complete system, not a box of parts.

Like all of our kits, the Veritas One is fully engineered so every part has a reason to be there. The drivers, cabinet alignment, crossover topology, damping, porting, and assembly approach are all selected to work together.

Matched Drivers

Selected for tonal balance, low distortion, and smooth integration.

Engineered Crossover

Designed for smooth blending, balanced response, and strong real-world performance.

Repeatable Build

SmartNode boards and optional flat packs help remove uncertainty from the process.

Superior crossover components are included with every kit.

Premium Components By Default.

We included the level of components you would expect in only an ultra high priced finished speaker. Nothing critical is left out, and nothing needs to be upgraded after the fact.

Beryllium Tweeter for clarity, refinement, and low distortion

Superior Crossover Components with high-quality capacitors, inductors, and resistors

SmartNode Crossover Boards for clean and repeatable assembly

Internal wiring, 3D printed jig, 3D printed adapters, and hardware

What’s included in the kit?

Everything you need. Nothing you don’t.

Each kit includes everything you need to complete a pair of speakers, with no critical components left out.

Matched pair of beryllium tweeters

Superior crossover components

SmartNode crossover boards

Internal wiring and quick connects

Mounting hardware

3D printed adapter and jig

Build support from CSS if questions come up

Built for real-world success.

The Veritas One is designed to be achievable for a wide range of builders while still delivering a truly high-end result.

Approachable build process

Clean crossover layout with SmartNode boards

A finished speaker that sounds like a serious high-end product

Shown with a finished wood cabinet.

What you can expect.

Refined detail

A clean, highly detailed top end that avoids the etched or fatiguing sound people often associate with “detail.”

Natural vocals

Strong midrange clarity and tonal balance help vocals and instruments sound believable.

System scaling

Better electronics and better recordings are easy to hear as the rest of your system improves.

Specifications & Measurements

Engineered, measured, and validated as a complete system.

The Veritas One was designed as a complete loudspeaker system, not just a collection of premium parts. The crossover, cabinet tuning, drivers, and acoustic response were developed together to deliver the same balanced, full-range presentation the 1TD-X is known for, with the added refinement and resolution of the Veritas LD25B-06 beryllium tweeter.

Frequency Response

41 Hz – 40 kHz

±3 dB

In-Room Extension

30 Hz – 40 kHz

Typical in-room response

Sensitivity

87 dB

2.83 V / 1 m

Nominal Impedance

8 Ohm

Amplifier friendly

Full Specifications

Crossover Point

1600 Hz

Recommended Power

20 watts and up

Nominal Impedance

8 Ohm

Frequency Response

±3 dB from 41 Hz to 40 kHz

Typical In-Room Response

30 Hz to 40 kHz

Sensitivity

87 dB @ 2.83 V

Fb

39 Hz

F3

41 Hz

External Dimensions

14" H x 8.5" W x 12" D

Assembled Weight

25 lbs each with Superior Crossover / 23.5 lbs each with Standard Crossover

Measurement Data

The Veritas One was measured and refined to deliver a smooth response both on-axis and off-axis, helping it maintain natural tonal balance in real rooms instead of sounding good only from one narrow listening position.

Frequency Response

Smooth, extended response with identical bass performance of the Criton 1TD-X while adding the refinement of the beryllium tweeter.

Vertical Polar

How does this compare to the Criton 1TD-X?

The Criton 1TD-X has been one of our most popular kits for good reason: it offers excellent bass extension, very low distortion, and a big, full-range presentation that surprises a lot of people for a bookshelf-sized speaker.

The Veritas One keeps the same strong bass and midrange character the 1TD-X is known for. Overall, it has an almost identical frequency response both on and off-axis, but it leans further into top-end refinement, resolution, imaging, and detail retrieval.

Criton 1TD-X

The proven all-around performer

Choose the 1TD-X if you want our most established compact kit, excellent bass extension, and a speaker that does almost everything well.

Veritas One

The refined reference option

Choose the Veritas One if you want the familiar CSS balance with a more premium, resolved, and detailed top end from the beryllium tweeter.

Veritas Line beryllium tweeter, made in Germany.

Who this kit is for.

Builders looking for a true high-end result without designing from scratch

Customers who value low distortion, long-term listenability, and fine detail

Listeners who want the refinement of a premium tweeter in a compact CSS design

Anyone looking to step into reference-level performance at a fraction of finished-speaker pricing

Ready for a serious compact speaker build?

We build and assemble these kits in batches, and certain components—particularly the beryllium tweeter—can have longer lead times depending on supply.

If this is a project you’re considering, it’s generally best not to wait too long.

Questions about your room, system, or whether the Veritas One is the right fit? Reach out and we’ll be happy to help point you in the right direction.