Good sound isn't an accident, and it isn't a spec sheet either. This page covers the design decisions inside the B-1 — what was chosen, and why — in enough depth for the speaker builders in the room, written so everyone else can follow along.

The House Tuning

Moch Audio doesn't publish frequency-response plots for the B-1. That's a decision, not an omission. Measurement ran through every stage of the B-1's development — each prototype was measured, and every crossover change verified against instruments — but the final voicing was settled by extended listening, and that voicing is the product. A plot tells you where a response lands on one axis, in a room that isn't yours. It doesn't tell you how a speaker holds up at real volumes, with real records, over real evenings — and it certainly doesn't tell you whether you'll still be enjoying it three hours into a Sunday afternoon.

The tuning itself follows the tradition of the classic BBC monitors — designs voiced by engineers who understood that a speaker lives in a home, not a laboratory. It's fundamentally accurate and honest to the recording, with a touch of natural warmth through the midrange and a treble that stays smooth at length. It sits deliberately between the two extremes the market keeps offering: the clinically flat speaker that's impressive for a demo and fatiguing by the second album, and the syrupy one that flatters everything and tells the truth about nothing. The B-1 was tuned to be lived with, and that took hundreds of hours of listening to get right.

The Crossover

The crossover is where most speakers in this class quietly cut corners, and it's where the B-1 spends its money.

The crossover point sits at a low 1.7 kHz. Most 6.5″ two-ways cross higher, asking the woofer to carry well into the presence region — the range where the ear is most sensitive and a large cone starts to beam and strain. Crossing low hands that range to the tweeter instead, which is exactly the work a good silk dome is built for. It's a more demanding design choice — the tweeter has to work harder, lower, and the network behind it has to be right — but the result is a midrange that stays open and unforced, with vocals that sound like people rather than drivers.

The topology is a 2nd-order crossover, a proven choice for its smooth phase integration where the two drivers overlap: done properly, you can't hear where one driver ends and the other begins. Each network is hand-assembled on a dedicated board, one at a time, with every component placed and soldered by the same person who designed the circuit.

Component Selection

Polypropylene capacitors. Capacitors gate the signal reaching the tweeter — everything the treble does passes through them first. Many speakers at this price use non-polarized electrolytics there: cheaper parts with higher dielectric absorption, which smears fine detail, and higher series resistance, which costs level and clarity. The B-1 uses polypropylene film capacitors in the critical signal path. The audible difference is in the small stuff: sharper transients, cleaner texture, cymbals that decay naturally, treble that resolves instead of hazes.

Air-core inductors. Inductors gate the signal reaching the woofer, and iron- or ferrite-core parts save money by wrapping less copper around a magnetic core — a core that can saturate and distort during loud, dynamic passages, hardening the sound exactly when the music demands the most. The B-1 uses air-core inductors wound from high-purity copper. Air doesn't saturate. The bass stays clean and linear at any level the amplifier can deliver, whether it's a quiet weeknight or a Saturday at full tilt.

Resistors. Even the resistors are chosen to minimize stray inductance that could subtly shade the top octave. Small decision, same philosophy: nothing in the B-1's signal path is there because it was cheap.

The Enclosure

A cabinet's job is silence — and it's a harder job than it looks, because every note pressurizes the box from the inside, and any panel that gives adds a blurred sound of its own on top of the music. The B-1's enclosure is dense MDF with strategic internal bracing that stiffens the panels and pushes their resonances out of the music's way, so what you hear comes from the drivers, not the box.

The internal volume and rear port are calculated around the woofer's parameters, not around a marketing number. Tuned wrong, a port booms on one note and calls it bass; tuned right, it extends the low end cleanly and lets the woofer breathe. The B-1's bass is articulate rather than boomy — extension you can follow, not thump you can only feel.

Measured, Then Voiced

The B-1's design method comes down to one sentence: instruments got every decision into the neighborhood, and ears made the final call. That's the order of operations behind the crossover point, the component choices, the port tuning, and the house curve itself — measure, adjust, verify, then listen long enough to know. It's the slower way to design a loudspeaker, and it's the order Moch Audio intends to keep.