Sure Electronics A2100 User Manual

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Page 1

Audio Ampliﬁer

SURE A2100

Audio Ampliﬁer

Hiﬁ Sound Quality

Diversiﬁed Audio Connecvity

Reliable and Cost Eﬀecve

Specially Designed for Desktop Audio System

2 x 100 Wa

Explorer

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Beneﬁts

Support Mulple Audio Input Source

There are ﬁve various input methods for audio ampliﬁer.

a) Audio signal input terminal (RCA) —LED blink once b) Audio signal input terminal (3.5mm) —LED blink twice c) Bluetooth signal input —LED blink three mes d) Opcal ﬁber input terminal —LED blink four mes f) USB Sound Card —LED blink ﬁve mes (

Available for next version)

The priority of Input signals: RCA 3.5mm Bluetooth Opcal ﬁber USB Sound Card

Bass Output for Subwoofer

(

Available for next version)

There is a subwoofer output via RCA jack at the rear panel. When this jack is plugged in, the ampliﬁer will transmit the low frequency via the RCA. You can feed this output signal to your own subwoofer ampliﬁer. Meanwhile the bass level could also be adjusted with the POT on the back panel.

IR Remote and Rotary Encoder Switch Control

With the remote controller accompanying our product, you could operate several funcons as follow: a) Operaon/ Standby. b) Volume control. c) Switching audio signal channel. Also the rotary encoder switch is able to do the same job precisely.

Full Protecon and Low Power Consumpon

Besides of built-in chip protecon,including undervolatge protecon, overvoltage protecon,

overtemperature protecon, overcurrent protecon, ESD and spike protecon components used

throughout input and output of the ampliﬁer board ensure its robustness and reliablity. The standby power is less than 0.5Wa at 24Volts.

High Performance Stereo Headphone Ampliﬁer

The HP amp delivers up to 80mW per channel into 32ohm and has THD+N as low as 0.02%. Thanks to the

diﬀerenal input topology and high PSRR, the noise canclaon is enhanced. Audible clicks and pops on

startup and shutdown is also suppressed.

Aluminium Anodizing Housing

It is made of allumimium alloy so that it can resist scraching. Its overall streamlined and sturdy dark black appearence reﬂects elegant fashion. Each connector is marked with a cute icon, making it look simple and conveient for user to operate.

Technical Support

As we have standard products in stock, we can assure you of our mely delivery so that you can achieve the zero inventories. We also provide OEM, ODM businesses in various categories to some partners according to Sure’s Policies. Welcome to join Sure Electronics as a distributor today. You can start experiencing the unparalleled beneﬁts of membership. Please feel free to contact store@sure-electronics.com if you have any requirements. Or please visit www.sure-electronics.com for more informaon.

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Component and Funcon

2 3

1—3.5mm audio input 2—3.5mm headphone output 3—Volume knob 4—IR remote receiver

- -

1—Speaker output 2—Power input

3—USB sound card*

4—Subwoofer output

5—Subwoofer volume control* 6—Audio signal input (RCA)

7—Opcal ﬁber input 8—Bluetooth receiver

* Available for next version

- -

Power

Connecon

FIGURE 3-1 Front panel

FIGURE 3-2 Rear panel

To subwoofer ampliﬁer From MP3,

CD player,etc.

From set top box, desktop,etc.

Adjust the bass level by pot

Available for next version

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How to Connect?

How to Adjust the Volume?

+ -

Volume +

Volume -

We adopt digital volume potenometer of high-quality in Classic series which can adjust the volume precisely aer long-me use. Clockwise rotaon —Volume + Anclockwise rotaon —Volume Volume will not be changed during the further adjustment when reach to maximum or minimum level.

How to Switch Modes?

Operaon/ Standby

Push on the volume knob to switch between operaon mode and standby mode .

TABLE 2-2 SWITCH FUNCTION

State Funcon LED state

Standby

Ampliﬁer not

working

LED lighng in a breathing-eﬀect

state

Operaon Ampliﬁer working LED turn oﬀ

1. 3.5mm Jack or RCA It is suggested to ﬁnish the connecon before you power up the ampliﬁer. Hot plug-in is not recommanded.

2. Bluetooth Aer power up the ampliﬁer, just pair BT device "SURE-A2100" with your mobile device without PIN number. Only one mobile device is allowed to be connected every me.

3. Toslink Plug two ends of a TOSLINK cable into the TOSLINK ports on the both sides seperately. And set output data with 48KHz sampling rate and 24-bit word length.

4. USB DAC (

Available for next version)

You may connect the computer's USB to the amplifer microUSB port with a USB cable.

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How to Switch Channels?

Q&A

Channel +

Channel -

No sound

1. Check if i t is connected with the power and conﬁrm that the voltage regulator works well . If not, connect the power accordi ng to the connecon schemacs.

2. Check if the signal input cable is connected correctly and if there is signal. If not, connect the cables accordi ng to the schemac and input the audi o signal.

3. Check if the output cable is damaged and if the speaker works or not. If not, change the output cabl e and the speaker.

4. Check if the LED keeps oﬀ or not. If not, restart it and ensure that the LED displays breathi ng eﬀect in s tandby. If it sll doesn’t work, remove the power and contact us

Suddenly no s ound when the product is working

1. Check if the product

Situaon Soluons

has worked for l ong me or i f the audi o signal is too hi gh. If

it is, turn oﬀ the power and turn i t on agai n.

LED oﬀ

1. Check if i t is connected with the power and conﬁrm that the voltage regulator works well or not. If not, correctly connect it to the power accordi ng to the

schemacs.

Note: If the probl ems a bove sll cannot be sol ved, maybe the product has s omething wrong. Now please turn oﬀ the power, pull out the power cord from the socket and then contact us. Pl ease refer to chapter eleven for our contact informaon.

There are ﬁve various input methods for audio ampliﬁer. a) Audio signal input terminal (RCA) —LED blink once b) Audio signal input terminal (3.5mm) —LED blink twice c) Bluetooth signal input —LED blink three mes d) Opcal ﬁber input terminal —LED blink four mes f) USB Sound Card —LED blink ﬁve mes (

Available for next version)

The priority of Input signals: RCA 3.5mm Bluetooth Opcal ﬁber USB Sound Card

You can switch channels by pushing and rotang the knob. Also you can switch channels by using remote controller.

+ -

No sound with Opcal

1. Only supports 48KHz sampling rate, 8/16/24-bit word length.

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Speciﬁcaon9

Mechanical Drawing10

FIGURE 6-1 Front panel

FIGURE 6-2 Rear panel

124/ [4.88

]

120/ [4.72

]

FIGURE 6-3 Side view

217/ [85.43

]

4/ 0.16

mm [inch]

Parameters Condions Min Typ Max Power Supply Range(VDC) 12 24 32 Idle Power(W) 0.4 0.5 Standby Power(mW) Only When Low Power Module Available 2 10

Input Sensitvity(mV)

RCA,24V @ 4Ω, 100W 700 775 850

3.5mm 700 775 850 Bluetooth 700 775 850 USB Sound Card 700 775 850 Toslink/ Coaxial 700 775 850

Supports Sampling Rate(KHz) 48

Digital Audio Input Coaxial or Toslink Input Impedance(KΩ) RCA / 3.5mm 15 20 25 Gain(dB) 23 26 29 Output Power for Speaker(W) 24V @ 4Ω,THD+N=10% Single Channel 100

Eﬃciency

100W,24V @ 4Ω Single Channel

85%

88%

90%

24V, No Audio Input

/ /

,24V @ 4Ω, 100W

Open space, no phsical obstrucons /

BT Wireless Range(M)

/ /

Main Pr oduct

Combinao n Product

SKU Price Item Listed Price AA-AS32189 2 X 100W A2100 Class D Audio Ampliﬁer Explorer $69.90

PS-SP11575

Mean Well GS120A24-R7B Desktop Adapter Power Supply 24V 5A

120W

$49.90

MB-CM11111 Small 7-key

Remote

Control

$5.99

SKU Price Item Listed Price

AA-AC11158

2 X 100W A2100 Class D Audio Ampliﬁer Explorer with Bluetooth, Remote Control & Adapter

$119