STARKE SOUND A8.350 Multichannel Power Amplifier User Guide
- June 15, 2024
- STARKE SOUND
Table of Contents
SOUND A8.350 Multichannel Power Amplifier
User Guide
A8.350 Multichannel Power Amplifier
A8.350
Set-up instructions
Input connections
Connect up to 8 input channels using either unbalanced (RCA) or balanced (XLR)
cables. Channels are labeled 1A, 2A, 3A, 4A and 1B, 2B, 3B, 4B. A and B
channels have separate power supplies. So, if you are connecting less than 8
channels, distribute them among A’s and B’s to take advantage of both power
supplies. For example, with 4 channels, use 1A, 1B, 2A and 2B. Set the four
toggle switches to UNBAL (unbalanced) or BAL (balanced) as appropriate. You
can connect different source components, such as streamers and preamps, to
both balanced and unbalanced inputs of a channel and switch between them
using the toggles.
Output connections, trigger, and power
Connect up to 8 speakers using the corresponding output binding posts. Speaker
wires can be terminated with “banana plugs” which are inserted, or stripped
insulation (unscrew binding post cap, insert wire into hole on threaded shaft
and tighten cap). Observe correct polarity (“+” red and “-“ black).
The amplifier can be turned-on automatically by, for example, your
preamp/processor by connecting a 12-volt trigger wire to TRIGGER IN (top
right). You can use TRIGGER OUT to connect a “downstream” component such as
another amplifier to also be turned-on automatically. Connect the power cord
to AC INPUT (bottom right) and plug the other end into a 120-volt wall socket.
(Customers in countries with 230-volt mains supplies need to order the
230-volt version of this amplifier, and provide their own power cord.) Right
beneath the AC INPUT is a fuse receptacle. If it blows, replace this fuse only
with one of the same rating. Set the rocker switch to ON to power-on the
amplifier.
Operation
Vertical light on the front panel should be green. If it turns yellow, power- off, wait, then restart.
Starke Sound™ A8.350
A7 Sound Quality for 8 Channels
The A8 uses the same circuit core as the acclaimed A7 Mark II, honoring the
key traditions of great sound in Starke’s power amplifiers: the most linear
amplified state (Class A) and a fully-balanced circuit. Its 8-channel design
perfectly meets client needs in the era of immersive sound. Special A + AB
smooth switching technology brings the sweet, refined reproduction of Class A
to the theater. Its huge dynamic range delivers uncompressed sound in big
scenes while balanced input and output assure vanishingly-low distortion.
Key Features
Linear amplification (Class A) and fully balanced amplification circuits.
8 channels, 350 watts per channel
Unique A + AB seamless switching technology
Fully balanced input and output
Technical Specifications
Output Power| 350W RMS x 8 at 4Ω
200W RMS x 8 at 8Ω
---|---
Classer power| 30W at 2Ω, 4Ω, 8Ω, per channel
Gain| 26dB
Channel quantity| 8 channels
Amplifier type| Class A+AB
Frequency Response| 5Hz-50KHz +/-0.1 dB
Maximum output current per channel| 41A
Signal-To-Noise Ratio（SNR）| 113dB, “A” weighted
THD| <0.045% at 1 kHz, at 350 W, 4 Ω （8-channel output）
<0.15% at 20 kHz, at 350 W, 4 Ω （8-channel output）
Input terminals| 8 single-ended via beryllium copper RCA connector, gold
plated.
8 balanced via Neutral XLR locking connector, gold plated
Input Impedance (RCA)| 100KΩ
Input Impedance (XLR)| 200KΩ
Input Sensitivity| 2.4V
Output terminals| 8 pairs of beryllium copper binding post，custom made by
Starke Sound
Output Impedance| 0.12Ω （5 Hz to 100 kHz）
Minimum load impedance| 0.12Ω
True balance circuit| Yes
Heat| 1380 BTU / hr
Fan noise| ≤25dB
Power consumption| Standby 3.5W at 115v /5W at 230v
Idle 175W
Maximum 2560W
Control option| 12V trigger input & output
Cabinet| Aluminum and steel
Color options| Black
Full size| W 17.7 x H 9 x D 18.1 inches (w/ foot & faceplate)
W 450 x H 230 x D 460 mm (w/ foot & faceplate)
Weight| 74.9 lbs (34kg)
Shipping size| L 25.3 x W 25.3 x H 14.7 inches
L 644 x W 644 x H 375 mm
Shipping weight| 82.6 lbs (37.5kg)
Warranty| 3 years (from original purchase date)
Safety instructions
- Read, follow and keep these instructions
- Do not remove the cover as repairs require qualified technicians
- Do not use the product near water
- Do not install near any heat sources such as radiators, heaters, stoves or amplifiers
- Clean the product only with a damp cloth
- Use care when lifting or moving this heavy product
- Protect the power cord from being walked on or pinched
- Unplug during lightning storms or when unused for long periods of time
- Ensure that no objects filled with liquids, such as vases, are placed on the product
Limited warranty
3 years from purchase date
(Save original invoice for service to be arranged through your dealer, or
contact us directly if you purchased your amplifier online.)
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>