Question 1

can you listen music on my iPhone through it?

Accepted Answer

You could, but to get the benefits of a really nice amplifier like this you’ll need to make sure you are using high resolution audio files in a good external DAC.

Question 2

Can I connect a subwoofer ?

Accepted Answer

You have 2 ways to hook a subwoofer up.

1) Most subwoofers take speaker wire in the back. You would wire your amp speakers output into the back of the sub. This drops off the signal. Then it has speaker outs on the sub. Those outs use speaker wire to go into your speakers. The "downside" to this is your speakers etc will have the subwoofer amp sound signature to it. Could be bad, could be good, but you're buying a 2K dollar amp, you'd probably want it's sound with that.

2) This one is a bit more oofy but, it's how you can hook up subs like I do on my 1978 Pioneer SA 9500 II. You have Pre Out and Main In on the back of the receiver. We're going to use Y splitters on those. What you need a is a 1 male / 2 female splitter. You'll need two of those splitters. You'll need some interconnects as well (rca cables). Plug a male end into your pre-outs. Each pre-out gets one. So your pre-out left has 2 female ends open now. Connect a cable from the pre out left into the main in left. The other end is going to go into an RCA left on your sub. Now do the same with your right RCA.

Both of these allow your sub's volume to go with your amp volume knob.

2) is the more confusing one but most worth it so your speakers are driven purely by your amp.

Question 3

What is the difference between this and the R-N803?

Accepted Answer

A-S series are totally different from R-N models!   A-s are Integrated Amps and R-N are Receivers.  A-S are much higher quality and performance and thus more $$$.

Question 4

These are about 1,500 usd in Japan, why the huge price premium here?

Accepted Answer

Don't know. Checked used.

ASIN	B0105JWGV6
Batteries	2 AAA batteries required. (included)
Customer Reviews	4.5 4.5 out of 5 stars (22)
Date First Available	August 29, 2015
Item Weight	51.4 pounds
Item model number	A-S1100BL
Manufacturer	Yamaha Electronics
Product Dimensions	18.25 x 17.13 x 6.13 inches

Yamaha A-S1100BL Power Amplifier (Black)

Description

Specifications

Common Questions