Meyer Sound HD-1 - Manual
A user manual for Meyer Sound Laboratories’ HD-1 high-definition audio monitor covers its advanced design, including a two-way driver system with proprietary magnet structures and active crossover, tailored for professional audio applications. The guide addresses key operational aspects such as power requirements, speaker placement, wiring standards, and protection circuits to ensure reliable performance in studio or live sound environments. It also includes troubleshooting resources for common issues like distorted output or intermittent signals, alongside technical specifications relevant to installation and maintenance.
Table of Contents:
- Page 1 – HD-1 Monitor Design and Specifications
- Page 2 – Loudspeaker Setup and Power Connection
- Page 3 – Input Settings and Troubleshooting
- Page 4 – Service, Warranty, and System Specifications
HD-1
High Definition
Audio Monitor
Operating Instructions
The HD-1 High Definition
Audio Monitor* is a self-contained,
precision loudspeaker for near-
field sound reproduction.
Aligned to closely approximate
a true point source radiator, the
HD-1 features exceptionally broad
directivity characteristics. Its time
delay response is tightly controlled,
with minimal deviation from linear
phase across the full frequency
range of its operation. Each unit is
individually factory-calibrated to
ensure unprecedented consistency
of performance. The HD-1 is
suitable for critical applications
ranging from professional record-
ing to psychoacoustical research.
The HD-1 is a two-way system
comprising an 8-inch cone low-
frequency driver and dome tweeter
housed in a vented cabinet. The
low-frequency driver features an
exceptionally large magnet struc-
ture and a 2-inch voice coil for
greatest efficiency and heat dissipa-
tion. The tweeter employs a
specially-developed impregnated
silk dome to minimize breakup and
colorization.
Both drivers are of a proprietary
design, and are individually
selected for maximum linearity.
Their magnet structures employ
sophisticated field-cancelling
design techniques to minimize
magnetic field leakage, and the
cabinets may safely be placed
within 2 feet of sensitive color
video monitors. For applications
requiring closer proximity to
monitors, an optional steel-
shielded model is available.
The HD-1 incorporates line-level
control electronics mounted within
a rear-panel chassis, including:
• an active balanced input circuit
with switchable sensitivity
(+4 dBu or -10 dBV);
• an active crossover utilizing
optimized pole-zero filter
combinations to achieve acousti-
cal transparency and linear
phase;
• independent protection circuits
for each loudspeaker driver;
• dual power amplifiers for
biamplification.
The driver protection circuits
employ thermo-predictive limiters
and soft peak clamps to guard
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, California 94702
against damage from excessive
amplifier power and ensure
graceful overload characteristics.
Independent power biamplifiers
maximize system headroom,
efficiency and damping while
minimizing distortion. The low
frequency amplifier delivers 150
watts output power, while the high
frequency amplifier provides 75
watts. Both employ complementary
power MOSFET output stages
operating class A at low-to-moder-
ate listening levels (<90 dB SPL),
and class AB at high levels.
The HD-1’s free-field frequency
response is flat within ±1 dB from
40 Hz to 20 kHz (-3 dB at 32 Hz
and 22 kHz). It delivers high peak
SPL with >100 dB dynamic range
and extremely low distortion.
Covers are included for use during
transport.
* patents pending
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Was this manual helpful?
About this manual
- Brand
- Meyer Sound
- Model
- HD-1
- Document type
- Manual
- Language(s)
- English
- Pages
- 4
- File size
- 431.4 KB
- Format
Summary
Details on the monitor design, including the two-way driver system, magnet structures, active crossover, power amplifiers, protection circuits, frequency response, and suitability for professional audio applications.
Guidelines for setup and operation, covering power requirements, fuse handling, proper power cable connection, speaker placement, handling precautions, and wiring diagrams for international connectors.
Information on input connection specifications, sensitivity switch settings, operational LED indicators, calibration port, and a troubleshooting table addressing issues like no sound, distortion, low levels, hiss, and intermittent sound.
