Thule Audio IA-150-B Brochure

[ enter our world ]

Spirit is the two-channel product range from Thule Audio. By choosing any of the products

described below, you will take the first step into our world - a world of timeless designs and

near perfect sound rendition.

[ designed to last ]

All Spirit products have a matte black finish, set off by your choice of high quality, anodised

knobs and plates (choose between silver and gold colours), and they are built to last – both

constructionally and electronically. They have 1 mm. plated steel cabinets and 8 mm extruded,

anodised front plates, which makes them very robust. On the technical side, the electronic

circuits of the Spirit range are surface mounted and, on the amplifiers, the volume is realized

with a digital potentiometer. With just one easy to use button on the front panel you can control

all main functions, but the products are all also fully remote controllable.

[ fully balanced signal path ]

What separates the Spirit B range from the Spirit range as a whole is the fact that the

B amplifiers

are fully balanced. In conventional amplifier design the ground path is used both as a signal

reference and as a waste area for currents returning from the power supply – a process that

generates a lot of electrical noise. That type of noise is completely eliminated in the balanced

amplifier design. Here the electrical sound signal appears as the difference between two identical

amplifier circuits, which means that the ground path is completely isolated from the signal path.

In a conventional amplifier, the configuration with one active amplifier path and one ground

path, causes the drive performance to deteriorate ( it has a lower damping factor ), due of the

higher impedance in the ground path.In a balanced amplifier, the two active amplifier circuits

per channel, allows for direct drive of both phases of the speaker.

Creating two matching signal paths ( high common mode rejection ) is difficult and makes great

demands on the precision of the electronical components involved in the process.For this reason,

fully balanced amplifiers are normally quite expensive to produce and VERY expensive in retail.

However, because of our innovative circuit design and technological expertise we are able to

produce balanced amplifiers at extremely competitive prices:it is not accidental that Thule Audio's

products are voted “best in their price range” time and time again.

SPIRIT BALANCED AMPLIFIERS

IA60B / IA150B / PR150B / PA150B

Thule Audio ApS

Hørkær 14

2730 Herlev

Denmark

Tel

[phone]

Fax

[phone]

[e-mail]

www.thule-audio.com

[ the spirit b product range ]

IA60B and IA150B: These are the integrated amplifiers of the Spirit B product range. They have a

high power two-channel output of 2 x 60

W and 2 x 150W, respectively. With its fully balanced

design, the

IA60B has an unparalleled musicality and sound quality for its price range – or any

price range for that matter. The same goes for the

IA150B, though it is very much more powerful

than the

IA60B.

PR150B and PA150B: The pre- and power combination of the PR150B and the PA150B is the high-

end combination in the two channel Spirit

B product range. With this combination you get the

same excellent performance as with the

IA150B as well as the flexibility that all pre- and power

amplifier combinations offer.With this combination of amplifiers you will witness the true

power of fully balanced amplification. You can also combine

PA150B with one of our other

balanced amplifiers in a bi-amp setup for even more power.

[ be surprised about the difference ]

Like our unbalanced and surround products, the Spirit B amplifiers can be mixed and matched

to suit your personal needs and tastes. If you want more you should check out our other product

ranges. Compared to other products in their price range, though, the products of the Spirit

B

range have a very unique build quality and design:you get both the unique features of Thule

Audio's Spirit range and the advantages of the fully balanced amplifier! As with all of our

products, you will be surprised what a good amplifier can do.

[ technical specifications ]

ia60b ia150b pr150b pa150b

Line inputs: 0.5V/phono, 5pcs 0.5V/phono, 3pcs 0.5V/phono, 5pcs -

Balanced input: 1V/XLR 1V/XLR 1V/XLR -

Tape outs: 0.5V/phono, 2pcs 0.5V/phono, 1pcs 0.5V/phono, 2pcs -

Main in: - - - 1V/phono, 2V/XLR

Pre out: 0-1V/phono 0-1V/phono,0-2V XLR 0-1V/phono,0-2V XLR -

Power out, 8ohm: 2x 60W 2x 150W - 2x 150W

Power out, 4ohm: 2x 90W 2x 210W - 2x 210W

Peak current 1ohm,1ms: +/-25A +/-35A - +/-35A

THD 20-20kHz, -10dB 0.04% 0.04% 0.008% 0.04%

Size ( WxHxD ): 420 x 95 x 290mm 420 x 95 x 290mm 420 x 95 x 290mm 420 x 95 x 290mm

Weight: 10kg 13kg 7kg 13kg

THULE AUDIO reserve the right to alter design and specifications without notice.

IA60B and IA150B PR150B / PA150B