Question 1

how many true watts does a 1000 x 4channel amp actually put out?

Accepted Answer

I'll post a link to a youtube video where this amp was put on the Amp Dyno but if you don't feel like watching it the  results were  65- 71 per channel (cea certified) @ 4 ohm @ 14.56V. Keep in mind those numbers will drop when an amp is installed in a car because your only going to about 13.4 to 13.9 V to the amp and that"s if everything is the right size and grounded properly.  As a rule of thumb a single 30-amp fuse means that the amplifier can produce 300 watts of power at most.  A60 amp fuse will make 600 watts plus or minus 10-20 depending on the quality of the amp. The quality of this amp is crap it may have 2 30A fuses but makes no where near that power. At 2 ohms it makes about 100 watts per channel. The 2 30A fuses making 600 watts doesn't account for the total efficiency. This amp is about 70 efficient which is awful !  
If you plan on using this to power 4 door speaker at 4 ohms 65-70 watts it will work just fine because guess what those 6.5" 500 watt speakers lied about the power handling too. 
If your not very familiar with car amps and want to know if your getting a deal or ripped off watch this guys videos, https://www.youtube.com/watch?v=FbA2Vdg3uSo thats for this amp and 2 other Bloujunk amps.
If you're looking for a budget amp that puts out like a prom date, 1100 watts @ 1 ohm (2 ohm DVC sub)  for $104  check out his video of a dyno drag race the Ignite R3000/1D vs the 2nd best budget monoblock amp the BOSS AR4000D. https://www.youtube.com/watch?v=UvHWxhm7Eog&t=630s 
My advice buy the Ignite and the warranty Amazon sells for $20 so you know your going to get 2-3 years of worry free ownership.

Question 2

Can i use this amp with blaupunkt mot699 6" x 9" 2-way motorcycle speaker ipx65 marine grade 600 watts ?

Accepted Answer

Yea it can

Question 3

Can this run 4 ohm speakers?

Accepted Answer

Can't really run anything or I got a bad one?worked for about 3 months then started cutting out.

Question 4

Base controls?

Accepted Answer

It has base controls as far as the app itself. You will have to install and RCA control bass knob if you want that on hand control.

ASIN	B0742N9CGN
Best Sellers Rank	#57,721 in Electronics ( See Top 100 in Electronics ) #113 in Car Multichannel Amplifiers
Brand Name	BLAUPUNKT
Customer Reviews	4.3 4.3 out of 5 stars (2,815)
Global Trade Identification Number	00815592021421
Included Components	Electrical Distribution Product
Item Dimensions	11.8 x 7.5 x 2.1 inches
Item Type Name	1500 Watts 4 Channel Full Range Amplifier
Item Weight	0.03 Pounds
Manufacturer	Blaupunkt
Maximum Output Power	1500 watts
Model	AMP1504
Mounting Type	Surface Mount
Number of Channels	4
Output Power	1500 Watts
Part Number	AMP1504
Specification Met	Ab Class Amplifier
UPC	815592021421 815592028918
Unit Count	1.0 Count
Voltage	15 Volts
Warranty Description	1 year

1500W 4-Channel, Full-Range Amplifier

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