For the love of good sound
Between notes
and high voltage.
Building, listening and exploring. Hi-fi projects, personal reviews and stories for people who hear more than background music.
01 / DIY audio
From the laboratory.
All 17 projects in one place.
Amplifiers, speakers and everything in between.
GM70 SE
A summer idea for a winter amplifier.
ALTEC MiniMe
A wooden cabinet, a distinctive white horn and a love of big sound.
RIAA MC/MM phono preamplifier
An MC/MM phono stage, from the circuit to listening to records.
Triode Power PP — 6C33C
A push-pull project using 6C33C output triodes.
2A3 push-pull AB2
An amplifier built around 2A3 triodes in push-pull AB2.
Single-ended 300B/6S45Pi
A single-ended amplifier using 300B and 6S45Pi triodes.
Tube S2S — F2a push-pull
A tube version of the S2S, with F2a output valves.
S2S transistor push-pull amplifier
A transistor push-pull amplifier from the DrZ lab.
S2S balanced hybrid preamplifier
A balanced hybrid preamplifier for the S2S system.
ALMM — Altec Lansing Music Monitor
Altec Lansing Music Monitor: a large loudspeaker project.
Korund
The Korund loudspeaker: construction, crossover and listening.
Malac — Accuton/Davis mini-monitor
A compact monitor with Accuton and Davis drivers.
A very small loudspeaker — JMZ
JMZ: a DIY loudspeaker with a very small footprint.
SB Mini — JMZ II
The next chapter in the very small loudspeaker story.
SimetriAC
SimetriAC: a balanced mains power supply project.
Silver/FPE interconnect
A DIY interconnect using silver and FPE insulation.
GM70 SE — earlier version
The earlier account of building the GM70 SE amplifier.
DrZ Laboratorij
Technology is the means.
Music is the reason.
Listening to music and building hi-fi equipment. That is our hobby.
Tube and solid-state amplifiers, large loudspeakers, turntables and D/A converters all have a place here. We follow what sounds good to us and share what we learn through builds, measurements and personal listening impressions.
DrZ a laboratory of good sound
02 / Listening impressions
A closer listen.
Measurements, observations
and very personal impressions.
03 / Music
When the equipment takes a back seat
In the end,
we listen to music.
Jazz, film scores and everything that makes us switch on our systems in the first place.
No offence… or why I love jazz
04 / Audio shows
Beyond the lab.
Photos and impressions
from the HIGH END show in Munich.
