Trends BA-10 Bi-amp Audio System

$799.00

PA-10.1D Tube Headphone/Pre amplifier (Tube) Russian 6H23n GE 12AU7

PA-10.1D Tube Headphone/Pre amplifier (Plug Type) US EU UK CH

As all we know, many high end speakers come with four sets of terminals on the back, two red, and two black with each pair of terminals supporting separate high and low frequency signals to the correct speakers(Click here for the picture). When supplied, the speakers will usually have a ‘bridging plate’ across them so that you only have to supply one cable to the speaker. If you supply each pair of terminals with a separate cable, from a separate amplifier output, you will be ensuring that each frequency gets a dedicated and consistent signal and this should improve the sound quality.

BA-10 Lite — Bi-amp System Features

The following features are copied from the original full BA-10 system article. References to the PA-10.1D preamplifier, its tube/headphone functions and connecting audio cables describe the complete system, not components included in the BA-10 Lite package. Refer to the Description tab for BA-10 Lite package contents.

• Combine the award-winning Trends TA-10.2P Class-T Power Amplifier (2 sets), Trends PA-10.1D Tube Headphone/Pre Amplifier (2 output) and Trends QB-773 Audiophile Audio Cable (2 sets).

• Applied a dual power supply to support two TA-10.2P power amps from a single box.

• Provide all functions of headphone amplifier, pre-amplifier and power amplifier.

• Compact design (mini-size & light weight), easy portable and setup for Hi-Fi room, living room and sleeping room.

• Ensure each frequency gets a dedicated and consistent signal and this should improve the sound quality.

• Built-in over-current protection and over-temperation protection design in the power amplifier.

• Unique air-core inductor in power amplifier used (instead of magnetic-core) for better sound.

• Innovative circuit design of low voltage hybrid (tube/transistor) & pure class-A circuit pre-amplifier to provide the best sound performance and easy/safe DIYer accessibility.

• The pre-amplifier supports both 6DJ8/6922 series and 12AU7 series tubes by simply switching the jumpers. DIYers can easily change their both series tubes to enjoy the fun.

• ONE bi-triode 6DJ8/6922 or 12AU7 tube as voltage amplification and TWO MOSFETs as output driver the pre-amplifier perform the warm, comfortable tube sound and in addition, guarantee the high fidelity & sufficient driving power to the next power amplifier stage.

• Provide TWO sets of switchable audio inputs in the pre-amplifier. Besides the normal CD input, the PC/iPod input with higher gain is provided for small output PC/Mac/iPod/iPad or PC/Mac.

• Use Apple Line Out cable or RCA cable connect to PC/iPod input and it works with low output-voltage sources, making Trends Bi-amp Audio System perfect for integrating your iPhone/iPod/iPad or PC/Mac into your audio system and achieves the sound quality of high-end Hi-Fi.

• Besides the normal audio output in the back panel, ONE headphone output in the front of the pre-amplifier to drive even high-impedance audiophile-grade headphones.

• TWO precise screw-driving potentiometers for professional audiophiles to adjust the tube’s bias voltage to guarantee the best working point for different tubes.

• The stylish aluminium case provides outstanding shielding & grounding capability to keeps the background silent and maximize the S/N ratio.

Setup videos

Monoblock setup

Horizontal Bi-amp setup

Vertical Bi-amp setup

For setup diagrams, see the Bi-amp Guide

1.1 Specification of Trends PA-10 & Trends PA-10.1D Tube Pre Amplifier Unit

Specification	PA-10	PA-10.1D
Vacuum Tube	6DJ8/6922 series or 12AU7 series (exchangeable) Standard Edition: Chinese 6N11 Tube SE Edition: Russian 6H23n GE Edition: USA 12AU7 Tube
Output Stage	MOSFET x 2
Amplification Gain	x3 (for Audio CD/DAC IN) x6 (for Audio PC/iPod IN)
Signal-to-Noise Ratio (SNR)	92dB
Dynamic Range	92dB
THD+Noise	0.05% @ 10k ohm 0.15% @ 33 ohm
Input	Two Audio CD/DAC IN RCA (Left/Right) x 1 [3Vpp max.] AND Audio PC/iPod IN RCA (Left/Right) x 1 [0.55Vpp max.] Power Socket(5.5mm/2.1mm) x 1	Two(switchable) Audio CD/DAC IN RCA (Left/Right) x 1 [3Vpp max.] Or Audio PC/iPod IN RCA (Left/Right) x 1 [0.55Vpp max.] Power Socket(5.5mm/2.1mm) x 1
Output	Audio OUT RCA(Left/Right) x 1 Headphone OUT (3.5mm) x 1	Audio OUT RCA(Left/Right) x 2 Headphone OUT (3.5mm) x 1
Other Switch & Knob	Audio IN selection switch x 1 Power ON/OFF switch x 1 Power Indicator (Blue LED under Tube Socket) x1 Volume Knob x 1
Power Supply	DC 24V-26.5V (max.)
Dimensions(DxWxH)	114mm x 76mm x 46mm[case only]/145mm[incl.sockets & knob]
Front Panel	1.5mm	4mm
System Package	Combo 1	BA-10 Bi-amp
Weight	380g	400g
Remark	Provide all functions of Tube Headphone Amplifier

1.2 Specification of Trends TA-10.2 Class-T Amplifier and Trends TA-10.2P Class-T Power Amplifier Unit

Spec. (Amplifier Unit)	TA-10.2	TA-10.2P
T-Amp IC	Tripath TA2024
Output Power	2 x 15W @ 4ohm 2 x 10W @ 8ohm
Signal-to-Noise Ratio (SNR)	98dB
Dynamic Range	>98dB
IHF-IM Distortion	0.10% @ 1W, 4ohm
THD+Noise	"Audiophile" Quality 0.03% @ 9W, 4ohm 0.1% @ 11W 4ohm 0.1% @ 6W 8ohm High Power 10% @ 15W 4ohm 10% @ 10W 8ohm
Power Efficiency	81% @ 15W, 4ohm 90% @ 10W, 8ohm
Input	Audio IN RCA (Left/Right) x 1 Power socket (5.5mm/2.1mm) x 1
Output	Speaker OUT (Left) x 1 pair (+ / -) Speaker OUT (Right) x 1 pair (+ / -)
Other Switch & Knob	Power ON/OFF switch x 1 Power Indicator (Blue LED) x 1
Volume knob	Yes	No
Power Supply	DC 12V~13.2V(max.)
Dimensions(DxWxH)	114mm x 76mm x 46mm[case only]/150mm[incl. sockets & knob]
Weight	500g

* To continuously improve our product, we reserve the rights to change some specifications without further notice.

1.3 Specification of 7A AC/DC Dual Power Adaptor (Support BA-10 Bi-amp)

Specification	Value
AC Input	Universal AC 100V-240V / 50~60Hz
DC Output	DC 12V / 7A (84W)
Ripple & Noise	<=50mV
Over-load Protection	105%-150%
Over-voltage Protection	115%-150%
Dimensions	(L)140mm x (W)60mm x (H)30mm
Weight	600g
Regulatory Compliance	UL, CE & GS Approved

1.4 Packing List

Trends TA-10.2P SE Class-T Power Amplifier(Body) x 2 pcs
Trends PA-10.1D Tube Headphone/Pre Amplifier –incl. Tube x 1 pcs
Trends CQ-121 Audiophile Audio Cable(1 pair) – 0.47M x 2 pcs
Trends 7A AC/DC Dual Power Adaptor x 1 pcs
User Guide(English)
Warranty Card x1

Date	Reviewer / publication	Read More	Review quote
2012-07-27	Richard Austen at Dagogo.com.	Read More	“As a system, the Trends BA-10 Bi-amp Audio System is deceptive…”
2012-07-31	Editor at 《AV Magazine》	Page 1	"Trends Audio掀起細機熱...."
2012-07-31	Editor at 《AV Magazine》	Page 2	"Trends Audio掀起細機熱...."
2013-03-05	Andrew Everard at WhatHiFi.com	Read More	"Trends Audio BA-10: real hi-fi…”
2013-05-23	Editor at 《AV Magazine》	Read More	“... 試問在這個價位的微型音響中，有哪一部可以bi-amp？"
2013-06-10	Andrew Everard at Gramophone	Read More	“... this system as attractive as it is intriguing”
2013-12-24	A. Colin Flood at EnjoyTheMusic.com	Read More	“…earns five Blue Notes as being the best Value for the Money”

Comparison between BA-10 and BA-10 Lite Bi-amp Audio System

Model	BA-10 SE/GE	BA-10 Lite (7A)	BA-10 Lite (4A)
Tube Types	6DJ8/6922 series/12AU7 series
Tube inside	Russian 6H23n/ U.S.A GE 12AU7
TA-10.2P SE(body) x 2	✔	✔	✔ Full set of TA-10.2P SE x 2
PA-10.1D	✔
RCA Cable(1 Pair) x 2	✔
7A Dual Power Adaptor	✔	✔
MSRP Price(US$), original source	$699	$299	$299
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