A Berlin Listening Room Built Around Horn-Loaded Precision
In a Berlin apartment shaped by tall windows, timber flooring, and an extensive record collection, a custom horn speaker system became the centre of a carefully considered listening space. The owner wanted scale and immediacy, yet had no interest in a system that overwhelmed the room or imposed a studio-like appearance on the living area.
The project brought together the owner’s musical preferences, the room’s proportions, and Sunship Audio’s approach to high-efficiency loudspeaker design. Rather than selecting a standard pair from a catalogue, the process focused on building a coherent system around TAD-Pioneer compression drivers, dedicated woofers, wooden horns, and a time-aligned passive crossover.
This Berlin-based customer spotlight shows how a high-sensitivity loudspeaker can become more than a powerful playback device. With the right cabinet proportions, acoustic loading, and setup, it can offer a vivid, low-effort presentation at both intimate and concert-level volumes.
A Listening Space With A Clear Purpose
The owner listens to acoustic jazz, large-scale classical works, vocal recordings, and electronic music. These styles place different demands on a loudspeaker: a small ensemble needs tonal texture and spatial focus, while orchestral and electronic material require dynamic headroom, bass authority, and composure during dense passages.
The room measures approximately 30 square metres and opens into a second living area. This created useful depth but also introduced reflective surfaces and asymmetry. The loudspeaker design therefore had to deliver controlled directivity without making the listening position feel narrow or overly constrained.
A demonstration session at Sunship Audio’s Berlin listening room helped establish the target. Instead of chasing brightness or exaggerated impact, the owner responded to natural vocal presence, precise image stability, and the way the system retained its character when the volume changed.
Building Around Horn-Loaded Efficiency
The finished system uses a bi-radial wooden horn to load the compression driver. Horn loading improves acoustic efficiency and helps control the way high and mid frequencies spread into the room. The result is a presentation that can sound immediate and dynamic without relying on excessive amplifier power.
A TAD-Pioneer compression driver provides the upper-band foundation, while a matched woofer handles the lower registers. This division allows each transducer to work within a more suitable range. Voices gain intelligibility, cymbals remain defined, and bass lines retain weight without clouding the midrange.
The horn profile also contributes to the system’s visual identity. Its curved wooden surface is practical as well as decorative, combining a carefully shaped acoustic path with the warmth of a handcrafted finish. In the Berlin room, the natural wood helped the cabinets sit comfortably alongside bookshelves and furniture.
Cabinet Work That Supports The Sound
The cabinets are built from heavily braced birch plywood, selected for its stiffness, consistency, and ability to withstand the mechanical energy produced by a high-output woofer. Internal bracing reduces unwanted panel movement, allowing more of the amplifier’s energy to reach the listener as music rather than enclosure vibration.
Cabinet construction is especially important in a horn system because the clarity of the compression driver can reveal small problems elsewhere. A resonant panel, loose joint, or poorly controlled woofer enclosure can become audible as coloration. Sunship Audio’s approach treats the cabinet as part of the acoustic system rather than a container added after the drivers have been chosen.
The passive crossover is time-aligned to support a unified wavefront at the listening position. This helps the woofer and compression driver integrate through the crossover region, improving image focus and preserving the timing cues that make a recording feel dimensional.
How The System Changed The Room
During the first listening sessions, the owner noticed that the speakers did not need to be played loudly to create scale. At moderate levels, a piano had a stable body and attack, while brushed drums retained their delicate texture. When the programme demanded greater energy, the system expanded without sounding strained.
Bass performance was described as firm and physical rather than inflated. Kick drums had a clean leading edge, and double bass remained easy to follow in busy arrangements. The room still influenced the lowest frequencies, as every listening space does, but the controlled cabinet and efficient driver combination made placement adjustments predictable.
The soundstage also benefited from the speakers’ directional behaviour. Once positioned with careful toe-in and adequate space from the front wall, the system produced a broad central image with convincing depth. Recordings made in larger venues gained scale, while small-group performances remained intimate.
| Design Element | Role In The Berlin System | Listening Benefit |
|---|---|---|
| Bi-radial wooden horn | Loads the compression driver and manages dispersion | Immediate presence with controlled room interaction |
| TAD-Pioneer compression driver | Reproduces the upper and presence ranges | Clear vocals, fine transient detail, and dynamic ease |
| Dedicated woofer | Handles low-frequency energy | Greater scale, weight, and rhythmic definition |
| Birch plywood cabinet | Provides a rigid, braced enclosure | Lower cabinet coloration and improved composure |
| Time-aligned passive crossover | Integrates the drivers through the crossover region | Stable imaging and coherent tonal balance |
| Custom proportions and finish | Adapts the loudspeaker to the room and interior | Better placement flexibility and visual harmony |
Choosing Two-Way Or Three-Way Architecture
The Berlin owner initially considered both two-way and three-way configurations. A two-way horn system can be especially direct and coherent because fewer crossover transitions stand between the listener and the music. It can also offer a straightforward signal path and a strong sense of immediacy.
A three-way design introduces a separate midrange section, which can provide additional flexibility in the crossover points and allow each driver to operate over a narrower bandwidth. The choice depends on room size, listening distance, preferred volume, bass expectations, and the balance between simplicity and bandwidth.
For a wider explanation of the practical differences, Sunship Audio’s guide to two-way and three-way systems offers useful context before a custom consultation. In this case, the selected architecture was based on integration and room compatibility rather than specification chasing.
What Prospective Owners Should Prioritize
A custom loudspeaker should be evaluated as part of a complete listening environment. Driver quality matters, but so do crossover design, enclosure behaviour, horn directivity, amplifier matching, and the distance between the speakers and the listening seat.
The Berlin installation also demonstrated that a high-sensitivity system rewards patience during setup. Small changes in toe-in, spacing, and listening height altered the balance between image density and room ambience.
- Begin with the room’s dimensions, furnishings, and listening distance.
- Choose driver and horn geometry as a coordinated system.
- Ask how the passive crossover manages phase, timing, and impedance.
- Assess amplifier compatibility alongside sensitivity ratings.
- Spend time with familiar recordings at several volume levels.
A Personal System With Lasting Character
The owner’s final system succeeded because it was developed around real listening habits rather than a generic idea of what a high-end loudspeaker should do. Its horn-loaded architecture brings energy and immediacy, while the braced birch plywood cabinet and carefully aligned crossover keep that energy controlled.
For listeners considering a custom horn loudspeaker in Berlin or elsewhere, the most valuable step is an extended demonstration with music that reveals both strengths and weaknesses. Visit Sunship Audio’s Berlin listening room to hear how compression drivers, wooden horns, precision crossover work, and custom cabinet construction can come together in a system designed for your room.