Viola、ステレオパワーアンプ「 CONCERTO 」国内登場！！

国内ニュース速報 [Japan]

CONCERTO（コンチェルト）　ステレオパワーアンプ
\3,100,000（税別）　７月発売予定
＊シルバー仕上げ・ブラック仕上げ

Concerto Power Amplifier

Housed in the same size billet Aluminum chassis as the Crescendo, the Concerto delivers 125W into 8 ohms and 225W into 4 ohms. Like all Viola power amplifiers the Concerto uses a choke input power supply. This reduces peak charging currents that are prevalent in capacitor input supplies. This minimizes intermodulation distortion on the power supply rails on ground returns.

Concerto Audio Design
The Concerto is a Class AB biased push-pull amplifier design. The Concerto incorporates Motorola ThermalTrak™ into the bias network. This provides fast thermal feedback information without the thermal lag of other bias topologies. A center chassis Venturi style heat sink provides cooling for the amplifier. Connections to loudspeakers are provided by a pair of WBT nextgen™ connectors per channel.

Network
The Concerto can be connected to the Crescendo preamplifier via the CAN (Controller Area Network) connector. When this is done Concerto status information including temperature and line voltage are transmitted to the Wi-Fi remote application. This also provides synchronization of the color displays and standby modes.

Concerto Power Amplifier Specifications
Output Power
Stereo Mode：　125W into 8 ohms    20Hz to 20kHz , THD < 0.25%    225W into 4 ohms    20Hz
to 20kHz , THD < 0.5%
Bridge Mode    450W into 8 ohms    650W into 4 ohms
All power figures quoted are continuous average power

Inputs：　2 x XLR

Outputs：　1 pair of WBT terminals

Frequency Response：　10Hz to 20kHz ± 0.15dB at 1W into 8 ohms  5Hz to 100kHz, -3dB at 1W
into 8 ohms

Power Bandwidth：　5Hz to 100kHz +0, -3dB

SN Ratio：　>85dB @ 1kHz 125W, C weighted

Dimensions：　17.5’’W x 3.5’’H x 15’’D  44.5cm W x 8.9cm H x 38.1cm D

Weight：　35 lbs. (15.9kg)