Daudio Amp User manual

daudio
Daudio AMP
User manual 29 September 2013

daudio
Introduction
The daudio AMP is designed to meet the needs of customers who demand the
utmost in control and musicalit from their their daudio loudspeakers. It contains
two 400W power supplies which can deliver a total of 800W continuous and 1200W
peak power. The amplifier modules are each able to deliver 250W to 4Ω, 180W to 8Ω
and a peak current of 14A. As a result, even speaker impedances of 2Ω are no
problem. You can choose for 2 or 4 amplifier modules (2 x 250 W or 4 x 250 W). The
state-of-the-art amplifier technolog achieves an efficienc of 92%. Therefore no
heav heat sinks are required, the small aluminum enclosure is sufficient to prevent
the temperature from rising too high.
The amplifiers are equipped with special input stages developed b daudio. These
input buffers / preamps have an almost immeasurable distortion of 0.00003%. The
are equipped with a separate discrete power suppl . The discrete power suppl is
much faster and more silent than the standard power supplies which are found In
virtuall all audio electronics even if the are of top qualit . The result is an amplifier
that possesses all the qualities needed to both control heav low-impedance woofers
as to offer utmost sophistication for the highest frequencies.
Depending on the configuration that ou purchased, the amplifier contains 2 or 4
amplifier modules and 2 or 4 inputs. This gives three possible configurations:
1. The 2 x 250 W stereo amplifier which is able to deliver large peak power to ver
low loudspeaker impedances.
2. The 4 x 250 W stereo amplifier which is able to drive two large woofers per
channel, for even lower distortion and improved control.
3. The 4 x 250 W double stereo amplifier. If ou chose this configuration there are
basicall no additional amplifiers needed to drive the daudio loudspeakers.
Electrical safety
On the inside of the housing of electronic equipment, high AC and DC voltages exist.
The case should therefore not be opened. daudio accepts no responsibilit for
injur or damage caused b opening of the housing or b connecting to a power
suppl voltage other than 220/230Vac 50Hz.
The amplifier needs sufficient space around the housing (at least 2" around) and
placed on feet 0.6" high, to enable sufficient heat dissipation at high ambient
temperatures.

daudio
Connection and operation
2 x 250 W or 4 x 250 W stereo
220/230Vac 50Hz Inputs
Loudspeaker(s) right Loudspeaker(s) left
4 x 250 W double stereo
220/230Vac 50Hz Inputs
Loudspeakers right Loudspeakers left
Warning: Connect the daudio AMP completel before plugging the power cord into
the socket!
Analogue inputs
Appl high qualit RCA analogue audio cables to connect our daudio ASP with our
daudio AMP. If ou do not own daudio loudspeakers and therefore also no
daudio ASP, ou can directl connect our preamp to the daudio AMP.
Speakon loudspeaker outputs
Use the supplied Speakon connectors with our loudspeaker cable. If ou have
purchased a 2 x 250 W amplifier, two Speakon connectors are included with a +1 and
-1 cable terminal in each connector. With the 4 x 250 W amplifier there come two
Speakon connectors with +1, -1, +2 and -2 cable terminals. In the 4 x 250 W dual
stereo amplifier the left and right '1' outputs correspond with the stereo channel
input 'high', the left and right '2' outputs with the stereo channel input 'low'.

daudio
Technical specifications
Inputs: gold plated Neutrik © cinch
Outputs: Neutrik © Speakon
Operating principle: UcD (Universal class D amplifier)
Output power per amplifier module: 250W/4Ω, 180W/8Ω
Distortion (0 - 20kHz): 0.02% (0.002%, 1W/4Ω and 0.001%, 1W/8Ω)
2-tone inter-modulation distortion: 0.01% (18.5kHz + 19.5kHz, 10W, 4Ω)
Input impedance: 100kΩ
Output impedance: 15mΩ (f < 1 kHz), rising to 60mΩ (20kHz)
Bandwidth: 0 - 56kHz (+0/-3dB, all loads)
Amplifier gain: 28.4dB
Required input voltage for 250W/4Ω: 1.21Vrms
Efficienc amplifier module: 92%
Total idle losses: ca. 22W (2 x 250W) or ca. 31W (4 x 250W)
Internal power suppl : 2 x 400 W (2 x 600W peak)
Peak current internal power suppl during 90 seconds: 11.7Arms at 400W
External mains power suppl : 220/230Vac 50Hz
Dimensions h x b x d: 50 x 236 x 290mm
daudio
van Keppelmarke 73
8016 GJ Zwolle