Evolution 7A6

6 x 75 Watt @4 ohm | 6 x 115 Watt @2 ohm | 3 x 250 Watt @4 ohm bridged


Crescendo Evolution 7A6 is 6 channel amplifier to drive 1 set of 3 way front speaker with 75 Watts of power or 1 piece of 4 ohm subwoofer with 250 Watts of power. This amplifier produces dynamic and natural sound. On top of that, the design is elegant with enlightened Crescendo logo.

Crescendo Evolution 7A6 utilizes high bias class AB design which is well known for its low distortion sound and yet save for small alternator car.

Some modern features of Evolution 7A6 as follows:

Amplifier applies big filter capacitor to balance low and high pitch.

Amplifier is supported with high quality components such as Toshiba transistor, International Rectifier mosfet, and Wima capacitor.

Preamplifier utilizes terminated design like legendary home audio preamplifier.

Crescendo Evolution 7A6 adalah amplifier 6 kanal yang mampu menggerakkan 1 set pengeras suara depan 3 jalur dengan tenaga 75 Watt atau sebuah subwoofer 4 ohm dengan tenaga 250 Watt. Amplifier ini menghasilkan suara yang dinamis dan natural. Terlebih lagi desainnya terlihat elegan dengan logo Crescendo yang menyala temaram.

Crescendo Evolution 7A6 menggunakan topologi desain kelas AB bias tinggi yang terkenal minim distorsi tetapi masih dalam batas aman untuk mobil dengan alternator kecil sekalipun.

Beberapa fitur unggulan yang dimiliki Evolution 7A6 adalah:

Amplifier menggunakan kapasitor filter berukuran besar untuk menjaga keseimbangan antara nada rendah dan nada tinggi.

Amplifier didukung oleh komponen berkualitas tingi seperti transistor Toshiba, mosfet International Rectifier, dan capacitor Wima.

Preamplifier menggunakan desain terminated seperti pada preamplifier rumah yang legendaris.

Additional information

Weight 4.5 kg
Dimensions 384 × 201 × 61 mm
Amplifier Design

Class AB high bias

Cosmetic appearance

Dark blue with silver lining

Number of channel(s)


Power at 4 Ω stereo

6 x 75 Watt

Power at 2 Ω stereo

6 x 115 Watt

Power at 4 Ω bridged

3 x 250 Watt

Minimum speaker load

2 Ω at stereo, 4 Ω at mono

Input sensitivity

0.2 – 5 V

Frequency response

10 Hz – 25 kHz


Not available

Low pass filter

Ch 5-6 : 10 Hz (OFF) – 750 Hz

High pass filter

Ch 1-4 : 10 Hz (OFF) – 200 Hz, Ch 5-6 : 10 Hz (OFF) – 750 Hz

Total harmonic distortion at 4 Ω

< 0.02%

Signal to noise ratio

> 90 dB

Remote control

Not available

Low voltage protection

Yes, protect < 8 Volt

Overheat protection

Yes, at 80 Celcius / 176 Fahrenheit